]> source.dussan.org Git - nextcloud-server.git/commitdiff
add oci8 to MDB2
authorJörn Friedrich Dreyer <jfd@butonic.de>
Thu, 19 Jul 2012 10:10:51 +0000 (12:10 +0200)
committerJörn Friedrich Dreyer <jfd@butonic.de>
Tue, 31 Jul 2012 15:42:36 +0000 (17:42 +0200)
3rdparty/MDB2/Driver/Datatype/oci8.php [new file with mode: 0644]
3rdparty/MDB2/Driver/Function/oci8.php [new file with mode: 0644]
3rdparty/MDB2/Driver/Manager/oci8.php [new file with mode: 0644]
3rdparty/MDB2/Driver/Native/oci8.php [new file with mode: 0644]
3rdparty/MDB2/Driver/Reverse/oci8.php [new file with mode: 0644]
3rdparty/MDB2/Driver/oci8.php [new file with mode: 0644]

diff --git a/3rdparty/MDB2/Driver/Datatype/oci8.php b/3rdparty/MDB2/Driver/Datatype/oci8.php
new file mode 100644 (file)
index 0000000..f633b0e
--- /dev/null
@@ -0,0 +1,499 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+
+// $Id: oci8.php 295587 2010-02-28 17:16:38Z quipo $
+
+require_once 'MDB2/Driver/Datatype/Common.php';
+
+/**
+ * MDB2 OCI8 driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Datatype_oci8 extends MDB2_Driver_Datatype_Common
+{
+    // {{{ _baseConvertResult()
+
+    /**
+     * general type conversion method
+     *
+     * @param mixed   $value refernce to a value to be converted
+     * @param string  $type  specifies which type to convert to
+     * @param boolean $rtrim [optional] when TRUE [default], apply rtrim() to text
+     * @return object a MDB2 error on failure
+     * @access protected
+     */
+    function _baseConvertResult($value, $type, $rtrim = true)
+    {
+        if (null === $value) {
+            return null;
+        }
+        switch ($type) {
+        case 'text':
+            if (is_object($value) && is_a($value, 'OCI-Lob')) {
+                //LOB => fetch into variable
+                $clob = $this->_baseConvertResult($value, 'clob', $rtrim);
+                if (!PEAR::isError($clob) && is_resource($clob)) {
+                    $clob_value = '';
+                    while (!feof($clob)) {
+                        $clob_value .= fread($clob, 8192);
+                    }
+                    $this->destroyLOB($clob);
+                }
+                $value = $clob_value;
+            }
+            if ($rtrim) {
+                $value = rtrim($value);
+            }
+            return $value;
+        case 'date':
+            return substr($value, 0, strlen('YYYY-MM-DD'));
+        case 'time':
+            return substr($value, strlen('YYYY-MM-DD '), strlen('HH:MI:SS'));
+        }
+        return parent::_baseConvertResult($value, $type, $rtrim);
+    }
+
+    // }}}
+    // {{{ getTypeDeclaration()
+
+    /**
+     * Obtain DBMS specific SQL code portion needed to declare an text type
+     * field to be used in statements like CREATE TABLE.
+     *
+     * @param array $field  associative array with the name of the properties
+     *      of the field being declared as array indexes. Currently, the types
+     *      of supported field properties are as follows:
+     *
+     *      length
+     *          Integer value that determines the maximum length of the text
+     *          field. If this argument is missing the field should be
+     *          declared to have the longest length allowed by the DBMS.
+     *
+     *      default
+     *          Text value to be used as default for this field.
+     *
+     *      notnull
+     *          Boolean flag that indicates whether this field is constrained
+     *          to not be set to null.
+     * @return string  DBMS specific SQL code portion that should be used to
+     *      declare the specified field.
+     * @access public
+     */
+    function getTypeDeclaration($field)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        switch ($field['type']) {
+        case 'text':
+            $length = !empty($field['length'])
+                ? $field['length'] : $db->options['default_text_field_length'];
+            $fixed = !empty($field['fixed']) ? $field['fixed'] : false;
+            return $fixed ? 'CHAR('.$length.')' : 'VARCHAR2('.$length.')';
+        case 'clob':
+            return 'CLOB';
+        case 'blob':
+            return 'BLOB';
+        case 'integer':
+            if (!empty($field['length'])) {
+                switch((int)$field['length']) {
+                    case 1:  $digit = 3;  break;
+                    case 2:  $digit = 5;  break;
+                    case 3:  $digit = 8;  break;
+                    case 4:  $digit = 10; break;
+                    case 5:  $digit = 13; break;
+                    case 6:  $digit = 15; break;
+                    case 7:  $digit = 17; break;
+                    case 8:  $digit = 20; break;
+                    default: $digit = 10;
+                }
+                return 'NUMBER('.$digit.')';
+            }
+            return 'INT';
+        case 'boolean':
+            return 'NUMBER(1)';
+        case 'date':
+        case 'time':
+        case 'timestamp':
+            return 'DATE';
+        case 'float':
+            return 'NUMBER';
+        case 'decimal':
+            $scale = !empty($field['scale']) ? $field['scale'] : $db->options['decimal_places'];
+            return 'NUMBER(*,'.$scale.')';
+        }
+    }
+
+    // }}}
+    // {{{ _quoteCLOB()
+
+    /**
+     * Convert a text value into a DBMS specific format that is suitable to
+     * compose query statements.
+     *
+     * @param string $value text string value that is intended to be converted.
+     * @param bool $quote determines if the value should be quoted and escaped
+     * @param bool $escape_wildcards if to escape escape wildcards
+     * @return string text string that represents the given argument value in
+     *        a DBMS specific format.
+     * @access protected
+     */
+    function _quoteCLOB($value, $quote, $escape_wildcards)
+    {
+        return 'EMPTY_CLOB()';
+    }
+
+    // }}}
+    // {{{ _quoteBLOB()
+
+    /**
+     * Convert a text value into a DBMS specific format that is suitable to
+     * compose query statements.
+     *
+     * @param string $value text string value that is intended to be converted.
+     * @param bool $quote determines if the value should be quoted and escaped
+     * @param bool $escape_wildcards if to escape escape wildcards
+     * @return string text string that represents the given argument value in
+     *        a DBMS specific format.
+     * @access protected
+     */
+    function _quoteBLOB($value, $quote, $escape_wildcards)
+    {
+        return 'EMPTY_BLOB()';
+    }
+
+    // }}}
+    // {{{ _quoteDate()
+
+    /**
+     * Convert a text value into a DBMS specific format that is suitable to
+     * compose query statements.
+     *
+     * @param string $value text string value that is intended to be converted.
+     * @param bool $quote determines if the value should be quoted and escaped
+     * @param bool $escape_wildcards if to escape escape wildcards
+     * @return string text string that represents the given argument value in
+     *        a DBMS specific format.
+     * @access protected
+     */
+    function _quoteDate($value, $quote, $escape_wildcards)
+    {
+       return $this->_quoteText("$value 00:00:00", $quote, $escape_wildcards);
+    }
+
+    // }}}
+    // {{{ _quoteTimestamp()
+
+    /**
+     * Convert a text value into a DBMS specific format that is suitable to
+     * compose query statements.
+     *
+     * @param string $value text string value that is intended to be converted.
+     * @param bool $quote determines if the value should be quoted and escaped
+     * @param bool $escape_wildcards if to escape escape wildcards
+     * @return string text string that represents the given argument value in
+     *        a DBMS specific format.
+     * @access protected
+     */
+    function _quoteTimestamp($value, $quote, $escape_wildcards)
+    {
+       return $this->_quoteText($value, $quote, $escape_wildcards);
+    }
+
+    // }}}
+    // {{{ _quoteTime()
+
+    /**
+     * Convert a text value into a DBMS specific format that is suitable to
+     *        compose query statements.
+     *
+     * @param string $value text string value that is intended to be converted.
+     * @param bool $quote determines if the value should be quoted and escaped
+     * @param bool $escape_wildcards if to escape escape wildcards
+     * @return string text string that represents the given argument value in
+     *        a DBMS specific format.
+     * @access protected
+     */
+    function _quoteTime($value, $quote, $escape_wildcards)
+    {
+       return $this->_quoteText("0001-01-01 $value", $quote, $escape_wildcards);
+    }
+
+    // }}}
+    // {{{ writeLOBToFile()
+
+    /**
+     * retrieve LOB from the database
+     *
+     * @param array $lob array
+     * @param string $file name of the file into which the LOb should be fetched
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access protected
+     */
+    function writeLOBToFile($lob, $file)
+    {
+        if (preg_match('/^(\w+:\/\/)(.*)$/', $file, $match)) {
+            if ($match[1] == 'file://') {
+                $file = $match[2];
+            }
+        }
+        $lob_data = stream_get_meta_data($lob);
+        $lob_index = $lob_data['wrapper_data']->lob_index;
+        $result = $this->lobs[$lob_index]['resource']->writetofile($file);
+        $this->lobs[$lob_index]['resource']->seek(0);
+        if (!$result) {
+            $db = $this->getDBInstance();
+            if (PEAR::isError($db)) {
+                return $db;
+            }
+
+            return $db->raiseError(null, null, null,
+                'Unable to write LOB to file', __FUNCTION__);
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _retrieveLOB()
+
+    /**
+     * retrieve LOB from the database
+     *
+     * @param array $lob array
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access protected
+     */
+    function _retrieveLOB(&$lob)
+    {
+        if (!is_object($lob['resource'])) {
+            $db = $this->getDBInstance();
+            if (PEAR::isError($db)) {
+                return $db;
+            }
+
+           return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+               'attemped to retrieve LOB from non existing or NULL column', __FUNCTION__);
+        }
+
+        if (!$lob['loaded']
+#            && !method_exists($lob['resource'], 'read')
+        ) {
+            $lob['value'] = $lob['resource']->load();
+            $lob['resource']->seek(0);
+        }
+        $lob['loaded'] = true;
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _readLOB()
+
+    /**
+     * Read data from large object input stream.
+     *
+     * @param array $lob array
+     * @param blob $data reference to a variable that will hold data to be
+     *      read from the large object input stream
+     * @param int $length integer value that indicates the largest ammount of
+     *      data to be read from the large object input stream.
+     * @return mixed length on success, a MDB2 error on failure
+     * @access protected
+     */
+    function _readLOB($lob, $length)
+    {
+        if ($lob['loaded']) {
+            return parent::_readLOB($lob, $length);
+        }
+
+        if (!is_object($lob['resource'])) {
+            $db = $this->getDBInstance();
+            if (PEAR::isError($db)) {
+                return $db;
+            }
+
+           return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+               'attemped to retrieve LOB from non existing or NULL column', __FUNCTION__);
+        }
+
+        $data = $lob['resource']->read($length);
+        if (!is_string($data)) {
+            $db = $this->getDBInstance();
+            if (PEAR::isError($db)) {
+                return $db;
+            }
+
+            return $db->raiseError(null, null, null,
+                    'Unable to read LOB', __FUNCTION__);
+        }
+        return $data;
+    }
+
+    // }}}
+    // {{{ patternEscapeString()
+
+    /**
+     * build string to define escape pattern string
+     *
+     * @access public
+     *
+     *
+     * @return string define escape pattern
+     */
+    function patternEscapeString()
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        return " ESCAPE '". $db->string_quoting['escape_pattern'] ."'";
+    }
+
+    // }}}
+    // {{{ _mapNativeDatatype()
+
+    /**
+     * Maps a native array description of a field to a MDB2 datatype and length
+     *
+     * @param array  $field native field description
+     * @return array containing the various possible types, length, sign, fixed
+     * @access public
+     */
+    function _mapNativeDatatype($field)
+    {
+        $db_type = strtolower($field['type']);
+        $type = array();
+        $length = $unsigned = $fixed = null;
+        if (!empty($field['length'])) {
+            $length = $field['length'];
+        }
+        switch ($db_type) {
+        case 'integer':
+        case 'pls_integer':
+        case 'binary_integer':
+            $type[] = 'integer';
+            if ($length == '1') {
+                $type[] = 'boolean';
+                if (preg_match('/^(is|has)/', $field['name'])) {
+                    $type = array_reverse($type);
+                }
+            }
+            break;
+        case 'varchar':
+        case 'varchar2':
+        case 'nvarchar2':
+            $fixed = false;
+        case 'char':
+        case 'nchar':
+            $type[] = 'text';
+            if ($length == '1') {
+                $type[] = 'boolean';
+                if (preg_match('/^(is|has)/', $field['name'])) {
+                    $type = array_reverse($type);
+                }
+            }
+            if ($fixed !== false) {
+                $fixed = true;
+            }
+            break;
+        case 'date':
+        case 'timestamp':
+            $type[] = 'timestamp';
+            $length = null;
+            break;
+        case 'float':
+            $type[] = 'float';
+            break;
+        case 'number':
+            if (!empty($field['scale'])) {
+                $type[] = 'decimal';
+                $length = $length.','.$field['scale'];
+            } else {
+                $type[] = 'integer';
+                if ($length == '1') {
+                    $type[] = 'boolean';
+                    if (preg_match('/^(is|has)/', $field['name'])) {
+                        $type = array_reverse($type);
+                    }
+                }
+            }
+            break;
+        case 'long':
+            $type[] = 'text';
+        case 'clob':
+        case 'nclob':
+            $type[] = 'clob';
+            break;
+        case 'blob':
+        case 'raw':
+        case 'long raw':
+        case 'bfile':
+            $type[] = 'blob';
+            $length = null;
+            break;
+        case 'rowid':
+        case 'urowid':
+        default:
+            $db = $this->getDBInstance();
+            if (PEAR::isError($db)) {
+                return $db;
+            }
+
+            return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+                'unknown database attribute type: '.$db_type, __FUNCTION__);
+        }
+
+        if ((int)$length <= 0) {
+            $length = null;
+        }
+
+        return array($type, $length, $unsigned, $fixed);
+    }
+}
+
+?>
\ No newline at end of file
diff --git a/3rdparty/MDB2/Driver/Function/oci8.php b/3rdparty/MDB2/Driver/Function/oci8.php
new file mode 100644 (file)
index 0000000..757d17f
--- /dev/null
@@ -0,0 +1,187 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+
+// $Id: oci8.php 295587 2010-02-28 17:16:38Z quipo $
+
+require_once 'MDB2/Driver/Function/Common.php';
+
+/**
+ * MDB2 oci8 driver for the function modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Function_oci8 extends MDB2_Driver_Function_Common
+{
+    // {{{ executeStoredProc()
+
+    /**
+     * Execute a stored procedure and return any results
+     *
+     * @param string $name string that identifies the function to execute
+     * @param mixed  $params  array that contains the paramaters to pass the stored proc
+     * @param mixed   $types  array that contains the types of the columns in
+     *                        the result set
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function executeStoredProc($name, $params = null, $types = null, $result_class = true, $result_wrap_class = false)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = 'EXEC '.$name;
+        $query .= $params ? '('.implode(', ', $params).')' : '()';
+        return $db->query($query, $types, $result_class, $result_wrap_class);
+    }
+
+    // }}}
+    // {{{ functionTable()
+
+    /**
+     * return string for internal table used when calling only a function
+     *
+     * @return string for internal table used when calling only a function
+     * @access public
+     */
+    function functionTable()
+    {
+        return ' FROM dual';
+    }
+
+    // }}}
+    // {{{ now()
+
+    /**
+     * Return string to call a variable with the current timestamp inside an SQL statement
+     * There are three special variables for current date and time:
+     * - CURRENT_TIMESTAMP (date and time, TIMESTAMP type)
+     * - CURRENT_DATE (date, DATE type)
+     * - CURRENT_TIME (time, TIME type)
+     *
+     * @return string to call a variable with the current timestamp
+     * @access public
+     */
+    function now($type = 'timestamp')
+    {
+        switch ($type) {
+        case 'date':
+        case 'time':
+        case 'timestamp':
+        default:
+            return 'TO_CHAR(CURRENT_TIMESTAMP, \'YYYY-MM-DD HH24:MI:SS\')';
+        }
+    }
+
+    // }}}
+    // {{{ unixtimestamp()
+
+    /**
+     * return string to call a function to get the unix timestamp from a iso timestamp
+     *
+     * @param string $expression
+     *
+     * @return string to call a variable with the timestamp
+     * @access public
+     */
+    function unixtimestamp($expression)
+    {
+        $utc_offset = 'CAST(SYS_EXTRACT_UTC(SYSTIMESTAMP) AS DATE) - CAST(SYSTIMESTAMP AS DATE)';
+        $epoch_date = 'to_date(\'19700101\', \'YYYYMMDD\')';
+        return '(CAST('.$expression.' AS DATE) - '.$epoch_date.' + '.$utc_offset.') * 86400 seconds';
+    }
+
+    // }}}
+    // {{{ substring()
+
+    /**
+     * return string to call a function to get a substring inside an SQL statement
+     *
+     * @return string to call a function to get a substring
+     * @access public
+     */
+    function substring($value, $position = 1, $length = null)
+    {
+        if (null !== $length) {
+            return "SUBSTR($value, $position, $length)";
+        }
+        return "SUBSTR($value, $position)";
+    }
+
+    // }}}
+    // {{{ random()
+
+    /**
+     * return string to call a function to get random value inside an SQL statement
+     *
+     * @return return string to generate float between 0 and 1
+     * @access public
+     */
+    function random()
+    {
+        return 'dbms_random.value';
+    }
+
+    // }}}}
+    // {{{ guid()
+
+    /**
+     * Returns global unique identifier
+     *
+     * @return string to get global unique identifier
+     * @access public
+     */
+    function guid()
+    {
+        return 'SYS_GUID()';
+    }
+
+    // }}}}
+}
+?>
\ No newline at end of file
diff --git a/3rdparty/MDB2/Driver/Manager/oci8.php b/3rdparty/MDB2/Driver/Manager/oci8.php
new file mode 100644 (file)
index 0000000..90ae8eb
--- /dev/null
@@ -0,0 +1,1340 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+
+// $Id: oci8.php 295587 2010-02-28 17:16:38Z quipo $
+
+require_once 'MDB2/Driver/Manager/Common.php';
+
+/**
+ * MDB2 oci8 driver for the management modules
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Manager_oci8 extends MDB2_Driver_Manager_Common
+{
+    // {{{ createDatabase()
+
+    /**
+     * create a new database
+     *
+     * @param string $name    name of the database that should be created
+     * @param array  $options array with charset, collation info
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function createDatabase($name, $options = array())
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $username = $db->options['database_name_prefix'].$name;
+        $password = $db->dsn['password'] ? $db->dsn['password'] : $name;
+        $tablespace = $db->options['default_tablespace']
+            ? ' DEFAULT TABLESPACE '.$db->options['default_tablespace'] : '';
+
+        $query = 'CREATE USER '.$username.' IDENTIFIED BY '.$password.$tablespace;
+        $result = $db->standaloneQuery($query, null, true);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        $query = 'GRANT CREATE SESSION, CREATE TABLE, UNLIMITED TABLESPACE, CREATE SEQUENCE, CREATE TRIGGER TO '.$username;
+        $result = $db->standaloneQuery($query, null, true);
+        if (PEAR::isError($result)) {
+            $query = 'DROP USER '.$username.' CASCADE';
+            $result2 = $db->standaloneQuery($query, null, true);
+            if (PEAR::isError($result2)) {
+                return $db->raiseError($result2, null, null,
+                    'could not setup the database user', __FUNCTION__);
+            }
+            return $result;
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ alterDatabase()
+
+    /**
+     * alter an existing database
+     *
+     * IMPORTANT: the safe way to change the db charset is to do a full import/export!
+     * If - and only if - the new character set is a strict superset of the current
+     * character set, it is possible to use the ALTER DATABASE CHARACTER SET to
+     * expedite the change in the database character set.
+     *
+     * @param string $name    name of the database that is intended to be changed
+     * @param array  $options array with name, charset info
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function alterDatabase($name, $options = array())
+    {
+        //disabled
+        //return parent::alterDatabase($name, $options);
+
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (!empty($options['name'])) {
+            $query = 'ALTER DATABASE ' . $db->quoteIdentifier($name, true)
+                    .' RENAME GLOBAL_NAME TO ' . $db->quoteIdentifier($options['name'], true);
+            $result = $db->standaloneQuery($query);
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        if (!empty($options['charset'])) {
+            $queries = array();
+            $queries[] = 'SHUTDOWN IMMEDIATE'; //or NORMAL
+            $queries[] = 'STARTUP MOUNT';
+            $queries[] = 'ALTER SYSTEM ENABLE RESTRICTED SESSION';
+            $queries[] = 'ALTER SYSTEM SET JOB_QUEUE_PROCESSES=0';
+            $queries[] = 'ALTER DATABASE OPEN';
+            $queries[] = 'ALTER DATABASE CHARACTER SET ' . $options['charset'];
+            $queries[] = 'ALTER DATABASE NATIONAL CHARACTER SET ' . $options['charset'];
+            $queries[] = 'SHUTDOWN IMMEDIATE'; //or NORMAL
+            $queries[] = 'STARTUP';
+
+            foreach ($queries as $query) {
+                $result = $db->standaloneQuery($query);
+                if (PEAR::isError($result)) {
+                    return $result;
+                }
+            }
+        }
+
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ dropDatabase()
+
+    /**
+     * drop an existing database
+     *
+     * @param object $db database object that is extended by this class
+     * @param string $name name of the database that should be dropped
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function dropDatabase($name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $username = $db->options['database_name_prefix'].$name;
+        return $db->standaloneQuery('DROP USER '.$username.' CASCADE', null, true);
+    }
+
+
+    // }}}
+    // {{{ _makeAutoincrement()
+
+    /**
+     * add an autoincrement sequence + trigger
+     *
+     * @param string $name  name of the PK field
+     * @param string $table name of the table
+     * @param string $start start value for the sequence
+     * @return mixed        MDB2_OK on success, a MDB2 error on failure
+     * @access private
+     */
+    function _makeAutoincrement($name, $table, $start = 1)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $table_uppercase = strtoupper($table);
+        $index_name  = $table_uppercase . '_AI_PK';
+        $definition = array(
+            'primary' => true,
+            'fields' => array($name => true),
+        );
+        $idxname_format = $db->getOption('idxname_format');
+        $db->setOption('idxname_format', '%s');
+        $result = $this->createConstraint($table, $index_name, $definition);
+        $db->setOption('idxname_format', $idxname_format);
+        if (PEAR::isError($result)) {
+            return $db->raiseError($result, null, null,
+                'primary key for autoincrement PK could not be created', __FUNCTION__);
+        }
+
+        if (null === $start) {
+            $db->beginTransaction();
+            $query = 'SELECT MAX(' . $db->quoteIdentifier($name, true) . ') FROM ' . $db->quoteIdentifier($table, true);
+            $start = $this->db->queryOne($query, 'integer');
+            if (PEAR::isError($start)) {
+                return $start;
+            }
+            ++$start;
+            $result = $this->createSequence($table, $start);
+            $db->commit();
+        } else {
+            $result = $this->createSequence($table, $start);
+        }
+        if (PEAR::isError($result)) {
+            return $db->raiseError($result, null, null,
+                'sequence for autoincrement PK could not be created', __FUNCTION__);
+        }
+        $seq_name        = $db->getSequenceName($table);
+        $trigger_name    = $db->quoteIdentifier($table_uppercase . '_AI_PK', true);
+        $seq_name_quoted = $db->quoteIdentifier($seq_name, true);
+        $table = $db->quoteIdentifier($table, true);
+        $name  = $db->quoteIdentifier($name, true);
+        $trigger_sql = '
+CREATE TRIGGER '.$trigger_name.'
+   BEFORE INSERT
+   ON '.$table.'
+   FOR EACH ROW
+DECLARE
+   last_Sequence NUMBER;
+   last_InsertID NUMBER;
+BEGIN
+   SELECT '.$seq_name_quoted.'.NEXTVAL INTO :NEW.'.$name.' FROM DUAL;
+   IF (:NEW.'.$name.' IS NULL OR :NEW.'.$name.' = 0) THEN
+      SELECT '.$seq_name_quoted.'.NEXTVAL INTO :NEW.'.$name.' FROM DUAL;
+   ELSE
+      SELECT NVL(Last_Number, 0) INTO last_Sequence
+        FROM User_Sequences
+       WHERE UPPER(Sequence_Name) = UPPER(\''.$seq_name.'\');
+      SELECT :NEW.'.$name.' INTO last_InsertID FROM DUAL;
+      WHILE (last_InsertID > last_Sequence) LOOP
+         SELECT '.$seq_name_quoted.'.NEXTVAL INTO last_Sequence FROM DUAL;
+      END LOOP;
+   END IF;
+END;
+';
+        $result = $db->exec($trigger_sql);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _dropAutoincrement()
+
+    /**
+     * drop an existing autoincrement sequence + trigger
+     *
+     * @param string $table name of the table
+     * @return mixed        MDB2_OK on success, a MDB2 error on failure
+     * @access private
+     */
+    function _dropAutoincrement($table)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $table = strtoupper($table);
+        $trigger_name = $table . '_AI_PK';
+        $trigger_name_quoted = $db->quote($trigger_name, 'text');
+        $query = 'SELECT trigger_name FROM user_triggers';
+        $query.= ' WHERE trigger_name='.$trigger_name_quoted.' OR trigger_name='.strtoupper($trigger_name_quoted);
+        $trigger = $db->queryOne($query);
+        if (PEAR::isError($trigger)) {
+            return $trigger;
+        }
+
+        if ($trigger) {
+            $trigger_name  = $db->quoteIdentifier($table . '_AI_PK', true);
+            $trigger_sql = 'DROP TRIGGER ' . $trigger_name;
+            $result = $db->exec($trigger_sql);
+            if (PEAR::isError($result)) {
+                return $db->raiseError($result, null, null,
+                    'trigger for autoincrement PK could not be dropped', __FUNCTION__);
+            }
+
+            $result = $this->dropSequence($table);
+            if (PEAR::isError($result)) {
+                return $db->raiseError($result, null, null,
+                    'sequence for autoincrement PK could not be dropped', __FUNCTION__);
+            }
+
+            $index_name = $table . '_AI_PK';
+            $idxname_format = $db->getOption('idxname_format');
+            $db->setOption('idxname_format', '%s');
+            $result1 = $this->dropConstraint($table, $index_name);
+            $db->setOption('idxname_format', $idxname_format);
+            $result2 = $this->dropConstraint($table, $index_name);
+            if (PEAR::isError($result1) && PEAR::isError($result2)) {
+                return $db->raiseError($result1, null, null,
+                    'primary key for autoincrement PK could not be dropped', __FUNCTION__);
+            }
+        }
+
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _getTemporaryTableQuery()
+
+    /**
+     * A method to return the required SQL string that fits between CREATE ... TABLE
+     * to create the table as a temporary table.
+     *
+     * @return string The string required to be placed between "CREATE" and "TABLE"
+     *                to generate a temporary table, if possible.
+     */
+    function _getTemporaryTableQuery()
+    {
+        return 'GLOBAL TEMPORARY';
+    }
+
+    // }}}
+    // {{{ _getAdvancedFKOptions()
+
+    /**
+     * Return the FOREIGN KEY query section dealing with non-standard options
+     * as MATCH, INITIALLY DEFERRED, ON UPDATE, ...
+     *
+     * @param array $definition
+     * @return string
+     * @access protected
+     */
+    function _getAdvancedFKOptions($definition)
+    {
+        $query = '';
+        if (!empty($definition['ondelete']) && (strtoupper($definition['ondelete']) != 'NO ACTION')) {
+            $query .= ' ON DELETE '.$definition['ondelete'];
+        }
+        if (!empty($definition['deferrable'])) {
+            $query .= ' DEFERRABLE';
+        } else {
+            $query .= ' NOT DEFERRABLE';
+        }
+        if (!empty($definition['initiallydeferred'])) {
+            $query .= ' INITIALLY DEFERRED';
+        } else {
+            $query .= ' INITIALLY IMMEDIATE';
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ createTable()
+
+    /**
+     * create a new table
+     *
+     * @param string $name     Name of the database that should be created
+     * @param array $fields Associative array that contains the definition of each field of the new table
+     *                        The indexes of the array entries are the names of the fields of the table an
+     *                        the array entry values are associative arrays like those that are meant to be
+     *                         passed with the field definitions to get[Type]Declaration() functions.
+     *
+     *                        Example
+     *                        array(
+     *
+     *                            'id' => array(
+     *                                'type' => 'integer',
+     *                                'unsigned' => 1
+     *                                'notnull' => 1
+     *                                'default' => 0
+     *                            ),
+     *                            'name' => array(
+     *                                'type' => 'text',
+     *                                'length' => 12
+     *                            ),
+     *                            'password' => array(
+     *                                'type' => 'text',
+     *                                'length' => 12
+     *                            )
+     *                        );
+     * @param array $options  An associative array of table options:
+     *                          array(
+     *                              'comment' => 'Foo',
+     *                              'temporary' => true|false,
+     *                          );
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function createTable($name, $fields, $options = array())
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        $db->beginNestedTransaction();
+        $result = parent::createTable($name, $fields, $options);
+        if (!PEAR::isError($result)) {
+            foreach ($fields as $field_name => $field) {
+                if (!empty($field['autoincrement'])) {
+                    $result = $this->_makeAutoincrement($field_name, $name);
+                }
+            }
+        }
+        $db->completeNestedTransaction();
+        return $result;
+    }
+
+    // }}}
+    // {{{ dropTable()
+
+    /**
+     * drop an existing table
+     *
+     * @param string $name name of the table that should be dropped
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function dropTable($name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        $db->beginNestedTransaction();
+        $result = $this->_dropAutoincrement($name);
+        if (!PEAR::isError($result)) {
+            $result = parent::dropTable($name);
+        }
+        $db->completeNestedTransaction();
+        return $result;
+    }
+
+    // }}}
+    // {{{ truncateTable()
+
+    /**
+     * Truncate an existing table (if the TRUNCATE TABLE syntax is not supported,
+     * it falls back to a DELETE FROM TABLE query)
+     *
+     * @param string $name name of the table that should be truncated
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function truncateTable($name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $name = $db->quoteIdentifier($name, true);
+        return $db->exec("TRUNCATE TABLE $name");
+    }
+
+    // }}}
+    // {{{ vacuum()
+
+    /**
+     * Optimize (vacuum) all the tables in the db (or only the specified table)
+     * and optionally run ANALYZE.
+     *
+     * @param string $table table name (all the tables if empty)
+     * @param array  $options an array with driver-specific options:
+     *               - timeout [int] (in seconds) [mssql-only]
+     *               - analyze [boolean] [pgsql and mysql]
+     *               - full [boolean] [pgsql-only]
+     *               - freeze [boolean] [pgsql-only]
+     *
+     * @return mixed MDB2_OK success, a MDB2 error on failure
+     * @access public
+     */
+    function vacuum($table = null, $options = array())
+    {
+        // not needed in Oracle
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ alterTable()
+
+    /**
+     * alter an existing table
+     *
+     * @param string $name         name of the table that is intended to be changed.
+     * @param array $changes     associative array that contains the details of each type
+     *                             of change that is intended to be performed. The types of
+     *                             changes that are currently supported are defined as follows:
+     *
+     *                             name
+     *
+     *                                New name for the table.
+     *
+     *                            add
+     *
+     *                                Associative array with the names of fields to be added as
+     *                                 indexes of the array. The value of each entry of the array
+     *                                 should be set to another associative array with the properties
+     *                                 of the fields to be added. The properties of the fields should
+     *                                 be the same as defined by the MDB2 parser.
+     *
+     *
+     *                            remove
+     *
+     *                                Associative array with the names of fields to be removed as indexes
+     *                                 of the array. Currently the values assigned to each entry are ignored.
+     *                                 An empty array should be used for future compatibility.
+     *
+     *                            rename
+     *
+     *                                Associative array with the names of fields to be renamed as indexes
+     *                                 of the array. The value of each entry of the array should be set to
+     *                                 another associative array with the entry named name with the new
+     *                                 field name and the entry named Declaration that is expected to contain
+     *                                 the portion of the field declaration already in DBMS specific SQL code
+     *                                 as it is used in the CREATE TABLE statement.
+     *
+     *                            change
+     *
+     *                                Associative array with the names of the fields to be changed as indexes
+     *                                 of the array. Keep in mind that if it is intended to change either the
+     *                                 name of a field and any other properties, the change array entries
+     *                                 should have the new names of the fields as array indexes.
+     *
+     *                                The value of each entry of the array should be set to another associative
+     *                                 array with the properties of the fields to that are meant to be changed as
+     *                                 array entries. These entries should be assigned to the new values of the
+     *                                 respective properties. The properties of the fields should be the same
+     *                                 as defined by the MDB2 parser.
+     *
+     *                            Example
+     *                                array(
+     *                                    'name' => 'userlist',
+     *                                    'add' => array(
+     *                                        'quota' => array(
+     *                                            'type' => 'integer',
+     *                                            'unsigned' => 1
+     *                                        )
+     *                                    ),
+     *                                    'remove' => array(
+     *                                        'file_limit' => array(),
+     *                                        'time_limit' => array()
+     *                                    ),
+     *                                    'change' => array(
+     *                                        'name' => array(
+     *                                            'length' => '20',
+     *                                            'definition' => array(
+     *                                                'type' => 'text',
+     *                                                'length' => 20,
+     *                                            ),
+     *                                        )
+     *                                    ),
+     *                                    'rename' => array(
+     *                                        'sex' => array(
+     *                                            'name' => 'gender',
+     *                                            'definition' => array(
+     *                                                'type' => 'text',
+     *                                                'length' => 1,
+     *                                                'default' => 'M',
+     *                                            ),
+     *                                        )
+     *                                    )
+     *                                )
+     *
+     * @param boolean $check     indicates whether the function should just check if the DBMS driver
+     *                             can perform the requested table alterations if the value is true or
+     *                             actually perform them otherwise.
+     * @access public
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     */
+    function alterTable($name, $changes, $check)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        foreach ($changes as $change_name => $change) {
+            switch ($change_name) {
+            case 'add':
+            case 'remove':
+            case 'change':
+            case 'name':
+            case 'rename':
+                break;
+            default:
+                return $db->raiseError(MDB2_ERROR_CANNOT_ALTER, null, null,
+                    'change type "'.$change_name.'" not yet supported', __FUNCTION__);
+            }
+        }
+
+        if ($check) {
+            return MDB2_OK;
+        }
+
+        $name = $db->quoteIdentifier($name, true);
+
+        if (!empty($changes['add']) && is_array($changes['add'])) {
+            $fields = array();
+            foreach ($changes['add'] as $field_name => $field) {
+                $fields[] = $db->getDeclaration($field['type'], $field_name, $field);
+            }
+            $result = $db->exec("ALTER TABLE $name ADD (". implode(', ', $fields).')');
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        if (!empty($changes['change']) && is_array($changes['change'])) {
+            $fields = array();
+            foreach ($changes['change'] as $field_name => $field) {
+                //fix error "column to be modified to NOT NULL is already NOT NULL" 
+                if (!array_key_exists('notnull', $field)) {
+                    unset($field['definition']['notnull']);
+                }
+                $fields[] = $db->getDeclaration($field['definition']['type'], $field_name, $field['definition']);
+            }
+            $result = $db->exec("ALTER TABLE $name MODIFY (". implode(', ', $fields).')');
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        if (!empty($changes['rename']) && is_array($changes['rename'])) {
+            foreach ($changes['rename'] as $field_name => $field) {
+                $field_name = $db->quoteIdentifier($field_name, true);
+                $query = "ALTER TABLE $name RENAME COLUMN $field_name TO ".$db->quoteIdentifier($field['name']);
+                $result = $db->exec($query);
+                if (PEAR::isError($result)) {
+                    return $result;
+                }
+            }
+        }
+
+        if (!empty($changes['remove']) && is_array($changes['remove'])) {
+            $fields = array();
+            foreach ($changes['remove'] as $field_name => $field) {
+                $fields[] = $db->quoteIdentifier($field_name, true);
+            }
+            $result = $db->exec("ALTER TABLE $name DROP COLUMN ". implode(', ', $fields));
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        if (!empty($changes['name'])) {
+            $change_name = $db->quoteIdentifier($changes['name'], true);
+            $result = $db->exec("ALTER TABLE $name RENAME TO ".$change_name);
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _fetchCol()
+
+    /**
+     * Utility method to fetch and format a column from a resultset
+     *
+     * @param resource $result
+     * @param boolean $fixname (used when listing indices or constraints)
+     * @return mixed array of names on success, a MDB2 error on failure
+     * @access private
+     */
+    function _fetchCol($result, $fixname = false)
+    {
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        $col = $result->fetchCol();
+        if (PEAR::isError($col)) {
+            return $col;
+        }
+        $result->free();
+        
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        if ($fixname) {
+            foreach ($col as $k => $v) {
+                $col[$k] = $this->_fixIndexName($v);
+            }
+        }
+        
+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+            && $db->options['field_case'] == CASE_LOWER
+        ) {
+            $col = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $col);
+        }
+        return $col;
+    }
+
+    // }}}
+    // {{{ listDatabases()
+
+    /**
+     * list all databases
+     *
+     * @return mixed array of database names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listDatabases()
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (!$db->options['emulate_database']) {
+            return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+                'database listing is only supported if the "emulate_database" option is enabled', __FUNCTION__);
+        }
+
+        if ($db->options['database_name_prefix']) {
+            $query = 'SELECT SUBSTR(username, ';
+            $query.= (strlen($db->options['database_name_prefix'])+1);
+            $query.= ") FROM sys.dba_users WHERE username LIKE '";
+            $query.= $db->options['database_name_prefix']."%'";
+        } else {
+            $query = 'SELECT username FROM sys.dba_users';
+        }
+        $result = $db->standaloneQuery($query, array('text'), false);
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listUsers()
+
+    /**
+     * list all users
+     *
+     * @return mixed array of user names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listUsers()
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if ($db->options['emulate_database'] && $db->options['database_name_prefix']) {
+            $query = 'SELECT SUBSTR(username, ';
+            $query.= (strlen($db->options['database_name_prefix'])+1);
+            $query.= ") FROM sys.dba_users WHERE username NOT LIKE '";
+            $query.= $db->options['database_name_prefix']."%'";
+        } else {
+            $query = 'SELECT username FROM sys.dba_users';
+        }
+        return $db->queryCol($query);
+    }
+
+    // }}}
+    // {{{ listViews()
+
+    /**
+     * list all views in the current database
+     *
+     * @param string owner, the current is default
+     * @return mixed array of view names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listViews($owner = null)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT view_name
+                    FROM sys.all_views
+                   WHERE owner=? OR owner=?';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $result = $stmt->execute(array($owner, strtoupper($owner)));
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listFunctions()
+
+    /**
+     * list all functions in the current database
+     *
+     * @param string owner, the current is default
+     * @return mixed array of function names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listFunctions($owner = null)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = "SELECT name
+                    FROM sys.all_source
+                   WHERE line = 1
+                     AND type = 'FUNCTION'
+                     AND (owner=? OR owner=?)";
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $result = $stmt->execute(array($owner, strtoupper($owner)));
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listTableTriggers()
+
+    /**
+     * list all triggers in the database that reference a given table
+     *
+     * @param string table for which all referenced triggers should be found
+     * @return mixed array of trigger names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listTableTriggers($table = null)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = "SELECT trigger_name
+                    FROM sys.all_triggers
+                   WHERE (table_name=? OR table_name=?)
+                     AND (owner=? OR owner=?)";
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $args = array(
+            $table,
+            strtoupper($table),
+            $owner,
+            strtoupper($owner),
+        );
+        $result = $stmt->execute($args);
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listTables()
+
+    /**
+     * list all tables in the database
+     *
+     * @param string owner, the current is default
+     * @return mixed array of table names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listTables($owner = null)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT table_name
+                    FROM sys.all_tables
+                   WHERE owner=? OR owner=?';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $result = $stmt->execute(array($owner, strtoupper($owner)));
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listTableFields()
+
+    /**
+     * list all fields in a table in the current database
+     *
+     * @param string $table name of table that should be used in method
+     * @return mixed array of field names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listTableFields($table)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        list($owner, $table) = $this->splitTableSchema($table);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT column_name
+                    FROM all_tab_columns
+                   WHERE (table_name=? OR table_name=?)
+                     AND (owner=? OR owner=?)
+                ORDER BY column_id';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $args = array(
+            $table,
+            strtoupper($table),
+            $owner,
+            strtoupper($owner),
+        );
+        $result = $stmt->execute($args);
+        return $this->_fetchCol($result);
+    }
+
+    // }}}
+    // {{{ listTableIndexes()
+
+    /**
+     * list all indexes in a table
+     *
+     * @param string $table name of table that should be used in method
+     * @return mixed array of index names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listTableIndexes($table)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        list($owner, $table) = $this->splitTableSchema($table);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+        
+        $query = 'SELECT i.index_name name
+                    FROM all_indexes i
+               LEFT JOIN all_constraints c
+                      ON c.index_name = i.index_name
+                     AND c.owner = i.owner
+                     AND c.table_name = i.table_name
+                   WHERE (i.table_name=? OR i.table_name=?)
+                     AND (i.owner=? OR i.owner=?)
+                     AND c.index_name IS NULL
+                     AND i.generated=' .$db->quote('N', 'text');
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $args = array(
+            $table,
+            strtoupper($table),
+            $owner,
+            strtoupper($owner),
+        );
+        $result = $stmt->execute($args);
+        return $this->_fetchCol($result, true);
+    }
+
+    // }}}
+    // {{{ createConstraint()
+
+    /**
+     * create a constraint on a table
+     *
+     * @param string    $table        name of the table on which the constraint is to be created
+     * @param string    $name         name of the constraint to be created
+     * @param array     $definition   associative array that defines properties of the constraint to be created.
+     *                                Currently, only one property named FIELDS is supported. This property
+     *                                is also an associative with the names of the constraint fields as array
+     *                                constraints. Each entry of this array is set to another type of associative
+     *                                array that specifies properties of the constraint that are specific to
+     *                                each field.
+     *
+     *                                Example
+     *                                   array(
+     *                                       'fields' => array(
+     *                                           'user_name' => array(),
+     *                                           'last_login' => array()
+     *                                       )
+     *                                   )
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function createConstraint($table, $name, $definition)
+    {
+        $result = parent::createConstraint($table, $name, $definition);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        if (!empty($definition['foreign'])) {
+            return $this->_createFKTriggers($table, array($name => $definition));
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ dropConstraint()
+
+    /**
+     * drop existing constraint
+     *
+     * @param string    $table        name of table that should be used in method
+     * @param string    $name         name of the constraint to be dropped
+     * @param string    $primary      hint if the constraint is primary
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function dropConstraint($table, $name, $primary = false)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        //is it a FK constraint? If so, also delete the associated triggers
+        $db->loadModule('Reverse', null, true);
+        $definition = $db->reverse->getTableConstraintDefinition($table, $name);
+        if (!PEAR::isError($definition) && !empty($definition['foreign'])) {
+            //first drop the FK enforcing triggers
+            $result = $this->_dropFKTriggers($table, $name, $definition['references']['table']);
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+        }
+
+        return parent::dropConstraint($table, $name, $primary);
+    }
+
+    // }}}
+    // {{{ _createFKTriggers()
+
+    /**
+     * Create triggers to enforce the FOREIGN KEY constraint on the table
+     *
+     * @param string $table        table name
+     * @param array  $foreign_keys FOREIGN KEY definitions
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access private
+     */
+    function _createFKTriggers($table, $foreign_keys)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        // create triggers to enforce FOREIGN KEY constraints
+        if ($db->supports('triggers') && !empty($foreign_keys)) {
+            $table = $db->quoteIdentifier($table, true);
+            foreach ($foreign_keys as $fkname => $fkdef) {
+                if (empty($fkdef)) {
+                    continue;
+                }
+                $fkdef['onupdate'] = empty($fkdef['onupdate']) ? $db->options['default_fk_action_onupdate'] : strtoupper($fkdef['onupdate']);
+                if ('RESTRICT' == $fkdef['onupdate'] || 'NO ACTION' == $fkdef['onupdate']) {
+                    // already handled by default
+                    continue;
+                }
+
+                $trigger_name = substr(strtolower($fkname.'_pk_upd_trg'), 0, $db->options['max_identifiers_length']);
+                $table_fields = array_keys($fkdef['fields']);
+                $referenced_fields = array_keys($fkdef['references']['fields']);
+
+                //create the ON UPDATE trigger on the primary table
+                $restrict_action = ' IF (SELECT ';
+                $aliased_fields = array();
+                foreach ($table_fields as $field) {
+                    $aliased_fields[] = $table .'.'.$field .' AS '.$field;
+                }
+                $restrict_action .= implode(',', $aliased_fields)
+                       .' FROM '.$table
+                       .' WHERE ';
+                $conditions  = array();
+                $new_values  = array();
+                $null_values = array();
+                for ($i=0; $i<count($table_fields); $i++) {
+                    $conditions[]  = $table_fields[$i] .' = :OLD.'.$referenced_fields[$i];
+                    $new_values[]  = $table_fields[$i] .' = :NEW.'.$referenced_fields[$i];
+                    $null_values[] = $table_fields[$i] .' = NULL';
+                }
+
+                $cascade_action = 'UPDATE '.$table.' SET '.implode(', ', $new_values) .' WHERE '.implode(' AND ', $conditions). ';';
+                $setnull_action = 'UPDATE '.$table.' SET '.implode(', ', $null_values).' WHERE '.implode(' AND ', $conditions). ';';
+
+                if ('SET DEFAULT' == $fkdef['onupdate'] || 'SET DEFAULT' == $fkdef['ondelete']) {
+                    $db->loadModule('Reverse', null, true);
+                    $default_values = array();
+                    foreach ($table_fields as $table_field) {
+                        $field_definition = $db->reverse->getTableFieldDefinition($table, $field);
+                        if (PEAR::isError($field_definition)) {
+                            return $field_definition;
+                        }
+                        $default_values[] = $table_field .' = '. $field_definition[0]['default'];
+                    }
+                    $setdefault_action = 'UPDATE '.$table.' SET '.implode(', ', $default_values).' WHERE '.implode(' AND ', $conditions). ';';
+                }
+
+                $query = 'CREATE TRIGGER %s'
+                        .' %s ON '.$fkdef['references']['table']
+                        .' FOR EACH ROW '
+                        .' BEGIN ';
+
+                if ('CASCADE' == $fkdef['onupdate']) {
+                    $sql_update = sprintf($query, $trigger_name, 'BEFORE UPDATE',  'update') . $cascade_action;
+                } elseif ('SET NULL' == $fkdef['onupdate']) {
+                    $sql_update = sprintf($query, $trigger_name, 'BEFORE UPDATE', 'update') . $setnull_action;
+                } elseif ('SET DEFAULT' == $fkdef['onupdate']) {
+                    $sql_update = sprintf($query, $trigger_name, 'BEFORE UPDATE', 'update') . $setdefault_action;
+                }
+                $sql_update .= ' END;';
+                $result = $db->exec($sql_update);
+                if (PEAR::isError($result)) {
+                    if ($result->getCode() === MDB2_ERROR_ALREADY_EXISTS) {
+                        return MDB2_OK;
+                    }
+                    return $result;
+                }
+            }
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ _dropFKTriggers()
+
+    /**
+     * Drop the triggers created to enforce the FOREIGN KEY constraint on the table
+     *
+     * @param string $table            table name
+     * @param string $fkname           FOREIGN KEY constraint name
+     * @param string $referenced_table referenced table name
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access private
+     */
+    function _dropFKTriggers($table, $fkname, $referenced_table)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $triggers  = $this->listTableTriggers($table);
+        $triggers2 = $this->listTableTriggers($referenced_table);
+        if (!PEAR::isError($triggers2) && !PEAR::isError($triggers)) {
+            $triggers = array_merge($triggers, $triggers2);
+            $trigger_name = substr(strtolower($fkname.'_pk_upd_trg'), 0, $db->options['max_identifiers_length']);
+            $pattern = '/^'.$trigger_name.'$/i';
+            foreach ($triggers as $trigger) {
+                if (preg_match($pattern, $trigger)) {
+                    $result = $db->exec('DROP TRIGGER '.$trigger);
+                    if (PEAR::isError($result)) {
+                        return $result;
+                    }
+                }
+            }
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ listTableConstraints()
+
+    /**
+     * list all constraints in a table
+     *
+     * @param string $table name of table that should be used in method
+     * @return mixed array of constraint names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listTableConstraints($table)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        list($owner, $table) = $this->splitTableSchema($table);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT constraint_name
+                    FROM all_constraints
+                   WHERE (table_name=? OR table_name=?)
+                     AND (owner=? OR owner=?)';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $args = array(
+            $table,
+            strtoupper($table),
+            $owner,
+            strtoupper($owner),
+        );
+        $result = $stmt->execute($args);
+        return $this->_fetchCol($result, true);
+    }
+
+    // }}}
+    // {{{ createSequence()
+
+    /**
+     * create sequence
+     *
+     * @param object $db database object that is extended by this class
+     * @param string $seq_name name of the sequence to be created
+     * @param string $start start value of the sequence; default is 1
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function createSequence($seq_name, $start = 1)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
+        $query = "CREATE SEQUENCE $sequence_name START WITH $start INCREMENT BY 1 NOCACHE";
+        $query.= ($start < 1 ? " MINVALUE $start" : '');
+        return $db->exec($query);
+    }
+
+    // }}}
+    // {{{ dropSequence()
+
+    /**
+     * drop existing sequence
+     *
+     * @param object $db database object that is extended by this class
+     * @param string $seq_name name of the sequence to be dropped
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function dropSequence($seq_name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $sequence_name = $db->quoteIdentifier($db->getSequenceName($seq_name), true);
+        return $db->exec("DROP SEQUENCE $sequence_name");
+    }
+
+    // }}}
+    // {{{ listSequences()
+
+    /**
+     * list all sequences in the current database
+     *
+     * @param string owner, the current is default
+     * @return mixed array of sequence names on success, a MDB2 error on failure
+     * @access public
+     */
+    function listSequences($owner = null)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT sequence_name
+                    FROM sys.all_sequences
+                   WHERE (sequence_owner=? OR sequence_owner=?)';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $result = $stmt->execute(array($owner, strtoupper($owner)));
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        $col = $result->fetchCol();
+        if (PEAR::isError($col)) {
+            return $col;
+        }
+        $result->free();
+        
+        foreach ($col as $k => $v) {
+            $col[$k] = $this->_fixSequenceName($v);
+        }
+
+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+            && $db->options['field_case'] == CASE_LOWER
+        ) {
+            $col = array_map(($db->options['field_case'] == CASE_LOWER ? 'strtolower' : 'strtoupper'), $col);
+        }
+        return $col;
+    }
+}
+?>
\ No newline at end of file
diff --git a/3rdparty/MDB2/Driver/Native/oci8.php b/3rdparty/MDB2/Driver/Native/oci8.php
new file mode 100644 (file)
index 0000000..d198f96
--- /dev/null
@@ -0,0 +1,60 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2006 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann                       |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+//
+// $Id: oci8.php 215004 2006-06-18 21:59:05Z lsmith $
+//
+
+require_once 'MDB2/Driver/Native/Common.php';
+
+/**
+ * MDB2 Oracle driver for the native module
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@dybnet.de>
+ */
+class MDB2_Driver_Native_oci8 extends MDB2_Driver_Native_Common
+{
+}
+?>
\ No newline at end of file
diff --git a/3rdparty/MDB2/Driver/Reverse/oci8.php b/3rdparty/MDB2/Driver/Reverse/oci8.php
new file mode 100644 (file)
index 0000000..c86847f
--- /dev/null
@@ -0,0 +1,621 @@
+<?php
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2007 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith, Frank M. Kromann, Lorenzo Alberton     |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Authors: Lukas Smith <smith@pooteeweet.org>                          |
+// |          Lorenzo Alberton <l.alberton@quipo.it>                      |
+// +----------------------------------------------------------------------+
+//
+// $Id: oci8.php 295587 2010-02-28 17:16:38Z quipo $
+//
+
+require_once 'MDB2/Driver/Reverse/Common.php';
+
+/**
+ * MDB2 Oracle driver for the schema reverse engineering module
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@dybnet.de>
+ */
+class MDB2_Driver_Reverse_oci8 extends MDB2_Driver_Reverse_Common
+{
+    // {{{ getTableFieldDefinition()
+
+    /**
+     * Get the structure of a field into an array
+     *
+     * @param string $table_name name of table that should be used in method
+     * @param string $field_name name of field that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function getTableFieldDefinition($table_name, $field_name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $result = $db->loadModule('Datatype', null, true);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+
+        list($owner, $table) = $this->splitTableSchema($table_name);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = 'SELECT column_name name,
+                         data_type "type",
+                         nullable,
+                         data_default "default",
+                         COALESCE(data_precision, data_length) "length",
+                         data_scale "scale"
+                    FROM all_tab_columns
+                   WHERE (table_name=? OR table_name=?)
+                     AND (owner=? OR owner=?)
+                     AND (column_name=? OR column_name=?)
+                ORDER BY column_id';
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $args = array(
+            $table,
+            strtoupper($table),
+            $owner,
+            strtoupper($owner),
+            $field_name,
+            strtoupper($field_name)
+        );
+        $result = $stmt->execute($args);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        $column = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
+        if (PEAR::isError($column)) {
+            return $column;
+        }
+        $stmt->free();
+        $result->free();
+
+        if (empty($column)) {
+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                $field_name . ' is not a column in table ' . $table_name, __FUNCTION__);
+        }
+
+        $column = array_change_key_case($column, CASE_LOWER);
+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+            if ($db->options['field_case'] == CASE_LOWER) {
+                $column['name'] = strtolower($column['name']);
+            } else {
+                $column['name'] = strtoupper($column['name']);
+            }
+        }
+        $mapped_datatype = $db->datatype->mapNativeDatatype($column);
+        if (PEAR::isError($mapped_datatype)) {
+            return $mapped_datatype;
+        }
+        list($types, $length, $unsigned, $fixed) = $mapped_datatype;
+        $notnull = false;
+        if (!empty($column['nullable']) && $column['nullable'] == 'N') {
+            $notnull = true;
+        }
+        $default = false;
+        if (array_key_exists('default', $column)) {
+            $default = $column['default'];
+            if ($default === 'NULL') {
+                $default = null;
+            }
+            if ((null === $default) && $notnull) {
+                $default = '';
+            }
+        }
+
+        $definition[0] = array('notnull' => $notnull, 'nativetype' => $column['type']);
+        if (null !== $length) {
+            $definition[0]['length'] = $length;
+        }
+        if (null !== $unsigned) {
+            $definition[0]['unsigned'] = $unsigned;
+        }
+        if (null !== $fixed) {
+            $definition[0]['fixed'] = $fixed;
+        }
+        if ($default !== false) {
+            $definition[0]['default'] = $default;
+        }
+        foreach ($types as $key => $type) {
+            $definition[$key] = $definition[0];
+            if ($type == 'clob' || $type == 'blob') {
+                unset($definition[$key]['default']);
+            }
+            $definition[$key]['type'] = $type;
+            $definition[$key]['mdb2type'] = $type;
+        }
+        if ($type == 'integer') {
+            $query= "SELECT trigger_body
+                       FROM all_triggers
+                      WHERE table_name=?
+                        AND triggering_event='INSERT'
+                        AND trigger_type='BEFORE EACH ROW'";
+                       // ^^ pretty reasonable mimic for "auto_increment" in oracle?
+                       $stmt = $db->prepare($query);
+            if (PEAR::isError($stmt)) {
+                return $stmt;
+            }
+                       $result = $stmt->execute(strtoupper($table));
+               if (PEAR::isError($result)) {
+                   return $result;
+               }
+               while ($triggerstr = $result->fetchOne()) {
+                       if (preg_match('/.*SELECT\W+(.+)\.nextval +into +\:NEW\.'.$field_name.' +FROM +dual/im', $triggerstr, $matches)) {
+                                       $definition[0]['autoincrement'] = $matches[1];
+                }
+            }
+               $stmt->free();
+               $result->free();
+        }
+        return $definition;
+    }
+
+    // }}}
+    // {{{ getTableIndexDefinition()
+
+    /**
+     * Get the structure of an index into an array
+     *
+     * @param string $table_name name of table that should be used in method
+     * @param string $index_name name of index that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function getTableIndexDefinition($table_name, $index_name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        list($owner, $table) = $this->splitTableSchema($table_name);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+
+        $query = "SELECT aic.column_name,
+                         aic.column_position,
+                         aic.descend,
+                         aic.table_owner,
+                         alc.constraint_type
+                    FROM all_ind_columns aic
+               LEFT JOIN all_constraints alc
+                      ON aic.index_name = alc.constraint_name
+                     AND aic.table_name = alc.table_name
+                     AND aic.table_owner = alc.owner
+                   WHERE (aic.table_name=? OR aic.table_name=?)
+                     AND (aic.index_name=? OR aic.index_name=?)
+                     AND (aic.table_owner=? OR aic.table_owner=?)
+                ORDER BY column_position";
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        $indexnames = array_unique(array($db->getIndexName($index_name), $index_name));
+        $i = 0;
+        $row = null;
+        while ((null === $row) && array_key_exists($i, $indexnames)) {
+            $args = array(
+                $table,
+                strtoupper($table),
+                $indexnames[$i],
+                strtoupper($indexnames[$i]),
+                $owner,
+                strtoupper($owner)
+            );
+               $result = $stmt->execute($args);
+               if (PEAR::isError($result)) {
+                return $result;
+            }
+               $row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
+               if (PEAR::isError($row)) {
+                return $row;
+            }
+               $i++;
+        }
+        if (null === $row) {
+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                $index_name. ' is not an index on table '. $table_name, __FUNCTION__);
+        }
+        if ($row['constraint_type'] == 'U' || $row['constraint_type'] == 'P') {
+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                $index_name. ' is a constraint, not an index on table '. $table_name, __FUNCTION__);
+        }
+
+        $definition = array();
+        while (null !== $row) {
+            $row = array_change_key_case($row, CASE_LOWER);
+            $column_name = $row['column_name'];
+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+                if ($db->options['field_case'] == CASE_LOWER) {
+                    $column_name = strtolower($column_name);
+                } else {
+                    $column_name = strtoupper($column_name);
+                }
+            }
+            $definition['fields'][$column_name] = array(
+                'position' => (int)$row['column_position'],
+            );
+            if (!empty($row['descend'])) {
+                $definition['fields'][$column_name]['sorting'] =
+                    ($row['descend'] == 'ASC' ? 'ascending' : 'descending');
+            }
+            $row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
+        }
+        $result->free();
+        if (empty($definition['fields'])) {
+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                $index_name. ' is not an index on table '. $table_name, __FUNCTION__);
+        }
+        return $definition;
+    }
+
+    // }}}
+    // {{{ getTableConstraintDefinition()
+
+    /**
+     * Get the structure of a constraint into an array
+     *
+     * @param string $table_name      name of table that should be used in method
+     * @param string $constraint_name name of constraint that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function getTableConstraintDefinition($table_name, $constraint_name)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+        
+        list($owner, $table) = $this->splitTableSchema($table_name);
+        if (empty($owner)) {
+            $owner = $db->dsn['username'];
+        }
+        
+        $query = 'SELECT alc.constraint_name,
+                         CASE alc.constraint_type WHEN \'P\' THEN 1 ELSE 0 END "primary",
+                         CASE alc.constraint_type WHEN \'R\' THEN 1 ELSE 0 END "foreign",
+                         CASE alc.constraint_type WHEN \'U\' THEN 1 ELSE 0 END "unique",
+                         CASE alc.constraint_type WHEN \'C\' THEN 1 ELSE 0 END "check",
+                         alc.DELETE_RULE "ondelete",
+                         \'NO ACTION\' "onupdate",
+                         \'SIMPLE\' "match",
+                         CASE alc.deferrable WHEN \'NOT DEFERRABLE\' THEN 0 ELSE 1 END "deferrable",
+                         CASE alc.deferred WHEN \'IMMEDIATE\' THEN 0 ELSE 1 END "initiallydeferred",
+                         alc.search_condition,
+                         alc.table_name,
+                         cols.column_name,
+                         cols.position,
+                         r_alc.table_name "references_table",
+                         r_cols.column_name "references_field",
+                         r_cols.position "references_field_position"
+                    FROM all_cons_columns cols
+               LEFT JOIN all_constraints alc
+                      ON alc.constraint_name = cols.constraint_name
+                     AND alc.owner = cols.owner
+               LEFT JOIN all_constraints r_alc
+                      ON alc.r_constraint_name = r_alc.constraint_name
+                     AND alc.r_owner = r_alc.owner
+               LEFT JOIN all_cons_columns r_cols
+                      ON r_alc.constraint_name = r_cols.constraint_name
+                     AND r_alc.owner = r_cols.owner
+                     AND cols.position = r_cols.position
+                   WHERE (alc.constraint_name=? OR alc.constraint_name=?)
+                     AND alc.constraint_name = cols.constraint_name
+                     AND (alc.owner=? OR alc.owner=?)';
+        $tablenames = array();
+        if (!empty($table)) {
+            $query.= ' AND (alc.table_name=? OR alc.table_name=?)';
+            $tablenames = array($table, strtoupper($table));
+        }
+        $stmt = $db->prepare($query);
+        if (PEAR::isError($stmt)) {
+            return $stmt;
+        }
+        
+        $constraintnames = array_unique(array($db->getIndexName($constraint_name), $constraint_name));
+        $c = 0;
+        $row = null;
+        while ((null === $row) && array_key_exists($c, $constraintnames)) {
+            $args = array(
+                $constraintnames[$c],
+                strtoupper($constraintnames[$c]),
+                $owner,
+                strtoupper($owner)
+            );
+            if (!empty($table)) {
+                $args = array_merge($args, $tablenames);
+            }
+            $result = $stmt->execute($args);
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+            $row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
+            if (PEAR::isError($row)) {
+                return $row;
+            }
+            $c++;
+        }
+
+        $definition = array(
+            'primary' => (boolean)$row['primary'],
+            'unique'  => (boolean)$row['unique'],
+            'foreign' => (boolean)$row['foreign'],
+            'check'   => (boolean)$row['check'],
+            'deferrable' => (boolean)$row['deferrable'],
+            'initiallydeferred' => (boolean)$row['initiallydeferred'],
+            'ondelete' => $row['ondelete'],
+            'onupdate' => $row['onupdate'],
+            'match'    => $row['match'],
+        );
+
+        if ($definition['check']) {
+            // pattern match constraint for check constraint values into enum-style output:
+                       $enumregex = '/'.$row['column_name'].' in \((.+?)\)/i';
+                       if (preg_match($enumregex, $row['search_condition'], $rangestr)) {
+                               $definition['fields'][$column_name] = array();
+                               $allowed = explode(',', $rangestr[1]);
+                               foreach ($allowed as $val) {
+                                       $val = trim($val);
+                                       $val = preg_replace('/^\'/', '', $val);
+                                       $val = preg_replace('/\'$/', '', $val);
+                                       array_push($definition['fields'][$column_name], $val);
+                               }
+                       }
+               }
+        
+        while (null !== $row) {
+            $row = array_change_key_case($row, CASE_LOWER);
+            $column_name = $row['column_name'];
+            if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+                if ($db->options['field_case'] == CASE_LOWER) {
+                    $column_name = strtolower($column_name);
+                } else {
+                    $column_name = strtoupper($column_name);
+                }
+            }
+            $definition['fields'][$column_name] = array(
+                'position' => (int)$row['position']
+            );
+            if ($row['foreign']) {
+                $ref_column_name = $row['references_field'];
+                $ref_table_name  = $row['references_table'];
+                if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+                    if ($db->options['field_case'] == CASE_LOWER) {
+                        $ref_column_name = strtolower($ref_column_name);
+                        $ref_table_name  = strtolower($ref_table_name);
+                    } else {
+                        $ref_column_name = strtoupper($ref_column_name);
+                        $ref_table_name  = strtoupper($ref_table_name);
+                    }
+                }
+                $definition['references']['table'] = $ref_table_name;
+                $definition['references']['fields'][$ref_column_name] = array(
+                    'position' => (int)$row['references_field_position']
+                );
+            }
+            $lastrow = $row;
+            $row = $result->fetchRow(MDB2_FETCHMODE_ASSOC);
+        }
+        $result->free();
+        if (empty($definition['fields'])) {
+            return $db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                $constraint_name . ' is not a constraint on table '. $table_name, __FUNCTION__);
+        }
+
+        return $definition;
+    }
+
+    // }}}
+    // {{{ getSequenceDefinition()
+
+    /**
+     * Get the structure of a sequence into an array
+     *
+     * @param string    $sequence   name of sequence that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function getSequenceDefinition($sequence)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $sequence_name = $db->getSequenceName($sequence);
+        $query = 'SELECT last_number FROM user_sequences';
+        $query.= ' WHERE sequence_name='.$db->quote($sequence_name, 'text');
+        $query.= '    OR sequence_name='.$db->quote(strtoupper($sequence_name), 'text');
+        $start = $db->queryOne($query, 'integer');
+        if (PEAR::isError($start)) {
+            return $start;
+        }
+        $definition = array();
+        if ($start != 1) {
+            $definition = array('start' => $start);
+        }
+        return $definition;
+    }
+
+    // }}}
+    // {{{ getTriggerDefinition()
+
+    /**
+     * Get the structure of a trigger into an array
+     *
+     * EXPERIMENTAL
+     *
+     * WARNING: this function is experimental and may change the returned value
+     * at any time until labelled as non-experimental
+     *
+     * @param string    $trigger    name of trigger that should be used in method
+     * @return mixed data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function getTriggerDefinition($trigger)
+    {
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $query = 'SELECT trigger_name,
+                         table_name,
+                         trigger_body,
+                         trigger_type,
+                         triggering_event trigger_event,
+                         description trigger_comment,
+                         1 trigger_enabled,
+                         when_clause
+                    FROM user_triggers
+                   WHERE trigger_name = \''. strtoupper($trigger).'\'';
+        $types = array(
+            'trigger_name'    => 'text',
+            'table_name'      => 'text',
+            'trigger_body'    => 'text',
+            'trigger_type'    => 'text',
+            'trigger_event'   => 'text',
+            'trigger_comment' => 'text',
+            'trigger_enabled' => 'boolean',
+            'when_clause'     => 'text',
+        );
+        $result = $db->queryRow($query, $types, MDB2_FETCHMODE_ASSOC);
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+        if (!empty($result['trigger_type'])) {
+            //$result['trigger_type'] = array_shift(explode(' ', $result['trigger_type']));
+            $result['trigger_type'] = preg_replace('/(\S+).*/', '\\1', $result['trigger_type']);
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ tableInfo()
+
+    /**
+     * Returns information about a table or a result set
+     *
+     * NOTE: only supports 'table' and 'flags' if <var>$result</var>
+     * is a table name.
+     *
+     * NOTE: flags won't contain index information.
+     *
+     * @param object|string  $result  MDB2_result object from a query or a
+     *                                 string containing the name of a table.
+     *                                 While this also accepts a query result
+     *                                 resource identifier, this behavior is
+     *                                 deprecated.
+     * @param int            $mode    a valid tableInfo mode
+     *
+     * @return array  an associative array with the information requested.
+     *                 A MDB2_Error object on failure.
+     *
+     * @see MDB2_Driver_Common::tableInfo()
+     */
+    function tableInfo($result, $mode = null)
+    {
+        if (is_string($result)) {
+           return parent::tableInfo($result, $mode);
+        }
+
+        $db = $this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $resource = MDB2::isResultCommon($result) ? $result->getResource() : $result;
+        if (!is_resource($resource)) {
+            return $db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                'Could not generate result resource', __FUNCTION__);
+        }
+
+        if ($db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+            if ($db->options['field_case'] == CASE_LOWER) {
+                $case_func = 'strtolower';
+            } else {
+                $case_func = 'strtoupper';
+            }
+        } else {
+            $case_func = 'strval';
+        }
+
+        $count = @OCINumCols($resource);
+        $res = array();
+
+        if ($mode) {
+            $res['num_fields'] = $count;
+        }
+
+        $db->loadModule('Datatype', null, true);
+        for ($i = 0; $i < $count; $i++) {
+            $column = array(
+                'table'  => '',
+                'name'   => $case_func(@OCIColumnName($resource, $i+1)),
+                'type'   => @OCIColumnType($resource, $i+1),
+                'length' => @OCIColumnSize($resource, $i+1),
+                'flags'  => '',
+            );
+            $res[$i] = $column;
+            $res[$i]['mdb2type'] = $db->datatype->mapNativeDatatype($res[$i]);
+            if ($mode & MDB2_TABLEINFO_ORDER) {
+                $res['order'][$res[$i]['name']] = $i;
+            }
+            if ($mode & MDB2_TABLEINFO_ORDERTABLE) {
+                $res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
+            }
+        }
+        return $res;
+    }
+}
+?>
\ No newline at end of file
diff --git a/3rdparty/MDB2/Driver/oci8.php b/3rdparty/MDB2/Driver/oci8.php
new file mode 100644 (file)
index 0000000..f61896b
--- /dev/null
@@ -0,0 +1,1647 @@
+<?php
+// vim: set et ts=4 sw=4 fdm=marker:
+// +----------------------------------------------------------------------+
+// | PHP versions 4 and 5                                                 |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 1998-2008 Manuel Lemos, Tomas V.V.Cox,                 |
+// | Stig. S. Bakken, Lukas Smith                                         |
+// | All rights reserved.                                                 |
+// +----------------------------------------------------------------------+
+// | MDB2 is a merge of PEAR DB and Metabases that provides a unified DB  |
+// | API as well as database abstraction for PHP applications.            |
+// | This LICENSE is in the BSD license style.                            |
+// |                                                                      |
+// | Redistribution and use in source and binary forms, with or without   |
+// | modification, are permitted provided that the following conditions   |
+// | are met:                                                             |
+// |                                                                      |
+// | Redistributions of source code must retain the above copyright       |
+// | notice, this list of conditions and the following disclaimer.        |
+// |                                                                      |
+// | Redistributions in binary form must reproduce the above copyright    |
+// | notice, this list of conditions and the following disclaimer in the  |
+// | documentation and/or other materials provided with the distribution. |
+// |                                                                      |
+// | Neither the name of Manuel Lemos, Tomas V.V.Cox, Stig. S. Bakken,    |
+// | Lukas Smith nor the names of his contributors may be used to endorse |
+// | or promote products derived from this software without specific prior|
+// | written permission.                                                  |
+// |                                                                      |
+// | THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS  |
+// | "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT    |
+// | LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS    |
+// | FOR A PARTICULAR PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE      |
+// | REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,          |
+// | INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, |
+// | BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS|
+// |  OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED  |
+// | AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT          |
+// | LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY|
+// | WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE          |
+// | POSSIBILITY OF SUCH DAMAGE.                                          |
+// +----------------------------------------------------------------------+
+// | Author: Lukas Smith <smith@pooteeweet.org>                           |
+// +----------------------------------------------------------------------+
+
+// $Id: oci8.php 295587 2010-02-28 17:16:38Z quipo $
+
+/**
+ * MDB2 OCI8 driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_oci8 extends MDB2_Driver_Common
+{
+    // {{{ properties
+    var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => '@');
+
+    var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
+
+    var $uncommitedqueries = 0;
+    // }}}
+    // {{{ constructor
+
+    /**
+     * Constructor
+     */
+    function __construct()
+    {
+        parent::__construct();
+
+        $this->phptype = 'oci8';
+        $this->dbsyntax = 'oci8';
+
+        $this->supported['sequences'] = true;
+        $this->supported['indexes'] = true;
+        $this->supported['summary_functions'] = true;
+        $this->supported['order_by_text'] = true;
+        $this->supported['current_id'] = true;
+        $this->supported['affected_rows'] = true;
+        $this->supported['transactions'] = true;
+        $this->supported['savepoints'] = true;
+        $this->supported['limit_queries'] = true;
+        $this->supported['LOBs'] = true;
+        $this->supported['replace'] = 'emulated';
+        $this->supported['sub_selects'] = true;
+        $this->supported['triggers'] = true;
+        $this->supported['auto_increment'] = false; // implementation is broken
+        $this->supported['primary_key'] = true;
+        $this->supported['result_introspection'] = true;
+        $this->supported['prepared_statements'] = true;
+        $this->supported['identifier_quoting'] = true;
+        $this->supported['pattern_escaping'] = true;
+        $this->supported['new_link'] = true;
+
+        $this->options['DBA_username'] = false;
+        $this->options['DBA_password'] = false;
+        $this->options['database_name_prefix'] = false;
+        $this->options['emulate_database'] = true;
+        $this->options['default_tablespace'] = false;
+        $this->options['default_text_field_length'] = 2000;
+        $this->options['lob_allow_url_include'] = false;
+        $this->options['result_prefetching'] = false;
+        $this->options['max_identifiers_length'] = 30;
+    }
+
+    // }}}
+    // {{{ errorInfo()
+
+    /**
+     * This method is used to collect information about an error
+     *
+     * @param integer $error
+     * @return array
+     * @access public
+     */
+    function errorInfo($error = null)
+    {
+        if (is_resource($error)) {
+            $error_data = @OCIError($error);
+            $error = null;
+        } elseif ($this->connection) {
+            $error_data = @OCIError($this->connection);
+        } else {
+            $error_data = @OCIError();
+        }
+        $native_code = $error_data['code'];
+        $native_msg  = $error_data['message'];
+        if (null === $error) {
+            static $ecode_map;
+            if (empty($ecode_map)) {
+                $ecode_map = array(
+                    1    => MDB2_ERROR_CONSTRAINT,
+                    900  => MDB2_ERROR_SYNTAX,
+                    904  => MDB2_ERROR_NOSUCHFIELD,
+                    911  => MDB2_ERROR_SYNTAX, //invalid character
+                    913  => MDB2_ERROR_VALUE_COUNT_ON_ROW,
+                    921  => MDB2_ERROR_SYNTAX,
+                    923  => MDB2_ERROR_SYNTAX,
+                    942  => MDB2_ERROR_NOSUCHTABLE,
+                    955  => MDB2_ERROR_ALREADY_EXISTS,
+                    1400 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
+                    1401 => MDB2_ERROR_INVALID,
+                    1407 => MDB2_ERROR_CONSTRAINT_NOT_NULL,
+                    1418 => MDB2_ERROR_NOT_FOUND,
+                    1435 => MDB2_ERROR_NOT_FOUND,
+                    1476 => MDB2_ERROR_DIVZERO,
+                    1722 => MDB2_ERROR_INVALID_NUMBER,
+                    2289 => MDB2_ERROR_NOSUCHTABLE,
+                    2291 => MDB2_ERROR_CONSTRAINT,
+                    2292 => MDB2_ERROR_CONSTRAINT,
+                    2449 => MDB2_ERROR_CONSTRAINT,
+                    4081 => MDB2_ERROR_ALREADY_EXISTS, //trigger already exists
+                    24344 => MDB2_ERROR_SYNTAX, //success with compilation error
+                );
+            }
+            if (isset($ecode_map[$native_code])) {
+                $error = $ecode_map[$native_code];
+            }
+        }
+        return array($error, $native_code, $native_msg);
+    }
+
+    // }}}
+    // {{{ beginTransaction()
+
+    /**
+     * Start a transaction or set a savepoint.
+     *
+     * @param   string  name of a savepoint to set
+     * @return  mixed   MDB2_OK on success, a MDB2 error on failure
+     *
+     * @access  public
+     */
+    function beginTransaction($savepoint = null)
+    {
+        $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+        if (null !== $savepoint) {
+            if (!$this->in_transaction) {
+                return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+                    'savepoint cannot be released when changes are auto committed', __FUNCTION__);
+            }
+            $query = 'SAVEPOINT '.$savepoint;
+            return $this->_doQuery($query, true);
+        }
+        if ($this->in_transaction) {
+            return MDB2_OK;  //nothing to do
+        }
+        if (!$this->destructor_registered && $this->opened_persistent) {
+            $this->destructor_registered = true;
+            register_shutdown_function('MDB2_closeOpenTransactions');
+        }
+        $this->in_transaction = true;
+        ++$this->uncommitedqueries;
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ commit()
+
+    /**
+     * Commit the database changes done during a transaction that is in
+     * progress or release a savepoint. This function may only be called when
+     * auto-committing is disabled, otherwise it will fail. Therefore, a new
+     * transaction is implicitly started after committing the pending changes.
+     *
+     * @param   string  name of a savepoint to release
+     * @return  mixed   MDB2_OK on success, a MDB2 error on failure
+     *
+     * @access  public
+     */
+    function commit($savepoint = null)
+    {
+        $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+        if (!$this->in_transaction) {
+            return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+                'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__);
+        }
+        if (null !== $savepoint) {
+            return MDB2_OK;
+        }
+
+        if ($this->uncommitedqueries) {
+            $connection = $this->getConnection();
+            if (PEAR::isError($connection)) {
+                return $connection;
+            }
+            if (!@OCICommit($connection)) {
+                return $this->raiseError(null, null, null,
+                'Unable to commit transaction', __FUNCTION__);
+            }
+            $this->uncommitedqueries = 0;
+        }
+        $this->in_transaction = false;
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ rollback()
+
+    /**
+     * Cancel any database changes done during a transaction or since a specific
+     * savepoint that is in progress. This function may only be called when
+     * auto-committing is disabled, otherwise it will fail. Therefore, a new
+     * transaction is implicitly started after canceling the pending changes.
+     *
+     * @param   string  name of a savepoint to rollback to
+     * @return  mixed   MDB2_OK on success, a MDB2 error on failure
+     *
+     * @access  public
+     */
+    function rollback($savepoint = null)
+    {
+        $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+        if (!$this->in_transaction) {
+            return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+                'rollback cannot be done changes are auto committed', __FUNCTION__);
+        }
+        if (null !== $savepoint) {
+            $query = 'ROLLBACK TO SAVEPOINT '.$savepoint;
+            return $this->_doQuery($query, true);
+        }
+
+        if ($this->uncommitedqueries) {
+            $connection = $this->getConnection();
+            if (PEAR::isError($connection)) {
+                return $connection;
+            }
+            if (!@OCIRollback($connection)) {
+                return $this->raiseError(null, null, null,
+                'Unable to rollback transaction', __FUNCTION__);
+            }
+            $this->uncommitedqueries = 0;
+        }
+        $this->in_transaction = false;
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ function setTransactionIsolation()
+
+    /**
+     * Set the transacton isolation level.
+     *
+     * @param   string  standard isolation level
+     *                  READ UNCOMMITTED (allows dirty reads)
+     *                  READ COMMITTED (prevents dirty reads)
+     *                  REPEATABLE READ (prevents nonrepeatable reads)
+     *                  SERIALIZABLE (prevents phantom reads)
+     * @param   array some transaction options:
+     *                  'wait' => 'WAIT' | 'NO WAIT'
+     *                  'rw'   => 'READ WRITE' | 'READ ONLY'
+     *
+     * @return  mixed   MDB2_OK on success, a MDB2 error on failure
+     *
+     * @access  public
+     * @since   2.1.1
+     */
+    function setTransactionIsolation($isolation, $options = array())
+    {
+        $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
+        switch ($isolation) {
+        case 'READ UNCOMMITTED':
+            $isolation = 'READ COMMITTED';
+        case 'READ COMMITTED':
+        case 'REPEATABLE READ':
+            $isolation = 'SERIALIZABLE';
+        case 'SERIALIZABLE':
+            break;
+        default:
+            return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+                'isolation level is not supported: '.$isolation, __FUNCTION__);
+        }
+
+        $query = "ALTER SESSION ISOLATION LEVEL $isolation";
+        return $this->_doQuery($query, true);
+    }
+
+    // }}}
+    // {{{ _doConnect()
+
+    /**
+     * do the grunt work of the connect
+     *
+     * @return connection on success or MDB2 Error Object on failure
+     * @access protected
+     */
+    function _doConnect($username, $password, $persistent = false)
+    {
+        if (!PEAR::loadExtension($this->phptype)) {
+            return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
+        }
+
+        $sid = '';
+
+        if (!empty($this->dsn['service']) && $this->dsn['hostspec']) {
+            //oci8://username:password@foo.example.com[:port]/?service=service
+            // service name is given, it is assumed that hostspec is really a
+            // hostname, we try to construct an oracle connection string from this
+            $port = $this->dsn['port'] ? $this->dsn['port'] : 1521;
+            $sid = sprintf("(DESCRIPTION=(ADDRESS_LIST=(ADDRESS=(PROTOCOL=TCP)
+                            (HOST=%s) (PORT=%s)))
+                            (CONNECT_DATA=(SERVICE_NAME=%s)))",
+                $this->dsn['hostspec'],
+                $port,
+                $this->dsn['service']
+            );
+        } elseif ($this->dsn['hostspec']) {
+            // we are given something like 'oci8://username:password@foo/'
+            // we have hostspec but not a service name, now we assume that
+            // hostspec is a tnsname defined in tnsnames.ora
+            $sid = $this->dsn['hostspec'];
+            if (isset($this->dsn['port']) && $this->dsn['port']) {
+                $sid = $sid.':'.$this->dsn['port'];
+            }
+        } else {
+            // oci://username:password@
+            // if everything fails, we have to rely on environment variables
+            // not before a check to 'emulate_database'
+            if (!$this->options['emulate_database'] && $this->database_name) {
+                $sid = $this->database_name;
+            } elseif (getenv('ORACLE_SID')) {
+                $sid = getenv('ORACLE_SID');
+            } elseif ($sid = getenv('TWO_TASK')) {
+                $sid = getenv('TWO_TASK');
+            } else {
+                return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                    'not a valid connection string or environment variable [ORACLE_SID|TWO_TASK] not set',
+                    __FUNCTION__);
+            }
+        }
+
+        if (function_exists('oci_connect')) {
+            if ($this->_isNewLinkSet()) {
+                $connect_function = 'oci_new_connect';
+            } else {
+                $connect_function = $persistent ? 'oci_pconnect' : 'oci_connect';
+            }
+
+            $charset = empty($this->dsn['charset']) ? null : $this->dsn['charset'];
+            $session_mode = empty($this->dsn['session_mode']) ? null : $this->dsn['session_mode'];
+            $connection = @$connect_function($username, $password, $sid, $charset, $session_mode);
+            $error = @OCIError();
+            if (isset($error['code']) && $error['code'] == 12541) {
+                // Couldn't find TNS listener.  Try direct connection.
+                $connection = @$connect_function($username, $password, null, $charset);
+            }
+        } else {
+            $connect_function = $persistent ? 'OCIPLogon' : 'OCILogon';
+            $connection = @$connect_function($username, $password, $sid);
+
+            if (!empty($this->dsn['charset'])) {
+                $result = $this->setCharset($this->dsn['charset'], $connection);
+                if (PEAR::isError($result)) {
+                    return $result;
+                }
+            }
+        }
+
+        if (!$connection) {
+            return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
+                'unable to establish a connection', __FUNCTION__);
+        }
+        
+        if (empty($this->dsn['disable_iso_date'])) {
+            $query = "ALTER SESSION SET NLS_DATE_FORMAT='YYYY-MM-DD HH24:MI:SS'";
+            $err =& $this->_doQuery($query, true, $connection);
+            if (PEAR::isError($err)) {
+                $this->disconnect(false);
+                return $err;
+            }
+        }
+        
+        $query = "ALTER SESSION SET NLS_NUMERIC_CHARACTERS='. '";
+        $err =& $this->_doQuery($query, true, $connection);
+        if (PEAR::isError($err)) {
+            $this->disconnect(false);
+            return $err;
+        }
+
+        return $connection;
+    }
+
+    // }}}
+    // {{{ connect()
+
+    /**
+     * Connect to the database
+     *
+     * @return MDB2_OK on success, MDB2 Error Object on failure
+     * @access public
+     */
+    function connect()
+    {
+        if (is_resource($this->connection)) {
+            //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
+            if (MDB2::areEquals($this->connected_dsn, $this->dsn)
+                && $this->opened_persistent == $this->options['persistent']
+            ) {
+                return MDB2_OK;
+            }
+            $this->disconnect(false);
+        }
+
+        if ($this->database_name && $this->options['emulate_database']) {
+             $this->dsn['username'] = $this->options['database_name_prefix'].$this->database_name;
+        }
+
+        $connection = $this->_doConnect($this->dsn['username'],
+                                        $this->dsn['password'],
+                                        $this->options['persistent']);
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+        $this->connection = $connection;
+        $this->connected_dsn = $this->dsn;
+        $this->connected_database_name = '';
+        $this->opened_persistent = $this->options['persistent'];
+        $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
+
+        if ($this->database_name) {
+            if ($this->database_name != $this->connected_database_name) {
+                $query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($this->database_name) .'"';
+                $result = $this->_doQuery($query);
+                if (PEAR::isError($result)) {
+                    $err = $this->raiseError($result, null, null,
+                        'Could not select the database: '.$this->database_name, __FUNCTION__);
+                    return $err;
+                }
+                $this->connected_database_name = $this->database_name;
+            }
+        }
+
+        $this->as_keyword = ' ';
+        $server_info = $this->getServerVersion();
+        if (is_array($server_info)) {
+            if ($server_info['major'] >= '10') {
+                $this->as_keyword = ' AS ';
+            }
+        }
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ databaseExists()
+
+    /**
+     * check if given database name is exists?
+     *
+     * @param string $name    name of the database that should be checked
+     *
+     * @return mixed true/false on success, a MDB2 error on failure
+     * @access public
+     */
+    function databaseExists($name)
+    {
+        $connection = $this->_doConnect($this->dsn['username'],
+                                        $this->dsn['password'],
+                                        $this->options['persistent']);
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+
+        $query = 'ALTER SESSION SET CURRENT_SCHEMA = "' .strtoupper($name) .'"';
+        $result = $this->_doQuery($query, true, $connection, false);
+        if (PEAR::isError($result)) {
+            if (!MDB2::isError($result, MDB2_ERROR_NOT_FOUND)) {
+                return $result;
+            }
+            return false;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ disconnect()
+
+    /**
+     * Log out and disconnect from the database.
+     *
+     * @param  boolean $force if the disconnect should be forced even if the
+     *                        connection is opened persistently
+     * @return mixed true on success, false if not connected and error
+     *                object on error
+     * @access public
+     */
+    function disconnect($force = true)
+    {
+        if (is_resource($this->connection)) {
+            if ($this->in_transaction) {
+                $dsn = $this->dsn;
+                $database_name = $this->database_name;
+                $persistent = $this->options['persistent'];
+                $this->dsn = $this->connected_dsn;
+                $this->database_name = $this->connected_database_name;
+                $this->options['persistent'] = $this->opened_persistent;
+                $this->rollback();
+                $this->dsn = $dsn;
+                $this->database_name = $database_name;
+                $this->options['persistent'] = $persistent;
+            }
+
+            if (!$this->opened_persistent || $force) {
+                $ok = false;
+                if (function_exists('oci_close')) {
+                    $ok = @oci_close($this->connection);
+                } else {
+                    $ok = @OCILogOff($this->connection);
+                }
+                if (!$ok) {
+                    return $this->raiseError(MDB2_ERROR_DISCONNECT_FAILED,
+                           null, null, null, __FUNCTION__);
+                }
+            }
+            $this->uncommitedqueries = 0;
+        } else {
+            return false;
+        }
+        return parent::disconnect($force);
+    }
+
+    // }}}
+    // {{{ standaloneQuery()
+
+    /**
+     * execute a query as DBA
+     *
+     * @param string $query     the SQL query
+     * @param mixed  $types     array containing the types of the columns in
+     *                          the result set
+     * @param boolean $is_manip if the query is a manipulation query
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function standaloneQuery($query, $types = null, $is_manip = false)
+    {
+        $user = $this->options['DBA_username']? $this->options['DBA_username'] : $this->dsn['username'];
+        $pass = $this->options['DBA_password']? $this->options['DBA_password'] : $this->dsn['password'];
+        $connection = $this->_doConnect($user, $pass, $this->options['persistent']);
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+
+        $offset = $this->offset;
+        $limit = $this->limit;
+        $this->offset = $this->limit = 0;
+        $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
+
+        $result = $this->_doQuery($query, $is_manip, $connection, false);
+        if (!PEAR::isError($result)) {
+            if ($is_manip) {
+                $result = $this->_affectedRows($connection, $result);
+            } else {
+                $result = $this->_wrapResult($result, $types, true, false, $limit, $offset);
+            }
+        }
+
+        @OCILogOff($connection);
+        return $result;
+    }
+
+    // }}}
+    // {{{ _modifyQuery()
+
+    /**
+     * Changes a query string for various DBMS specific reasons
+     *
+     * @param string $query  query to modify
+     * @param boolean $is_manip  if it is a DML query
+     * @param integer $limit  limit the number of rows
+     * @param integer $offset  start reading from given offset
+     * @return string modified query
+     * @access protected
+     */
+    function _modifyQuery($query, $is_manip, $limit, $offset)
+    {
+        if (preg_match('/^\s*SELECT/i', $query)) {
+            if (!preg_match('/\sFROM\s/i', $query)) {
+                $query.= " FROM dual";
+            }
+            if ($limit > 0) {
+                // taken from http://svn.ez.no/svn/ezcomponents/packages/Database
+                $max = $offset + $limit;
+                if ($offset > 0) {
+                    $min = $offset + 1;
+                    $query = "SELECT * FROM (SELECT a.*, ROWNUM mdb2rn FROM ($query) a WHERE ROWNUM <= $max) WHERE mdb2rn >= $min";
+                } else {
+                    $query = "SELECT a.* FROM ($query) a WHERE ROWNUM <= $max";
+                }
+            }
+        }
+        return $query;
+    }
+
+    // }}}
+    // {{{ _doQuery()
+
+    /**
+     * Execute a query
+     * @param string $query  query
+     * @param boolean $is_manip  if the query is a manipulation query
+     * @param resource $connection
+     * @param string $database_name
+     * @return result or error object
+     * @access protected
+     */
+    function &_doQuery($query, $is_manip = false, $connection = null, $database_name = null)
+    {
+        $this->last_query = $query;
+        $result = $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'pre'));
+        if ($result) {
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+            $query = $result;
+        }
+        if ($this->getOption('disable_query')) {
+            if ($is_manip) {
+                return 0;
+            }
+            return null;
+        }
+
+        if (null === $connection) {
+            $connection = $this->getConnection();
+            if (PEAR::isError($connection)) {
+                return $connection;
+            }
+        }
+
+        $query = str_replace("\r\n", "\n", $query); //for fixing end-of-line character in the PL/SQL in windows
+        $result = @OCIParse($connection, $query);
+        if (!$result) {
+            $err = $this->raiseError(null, null, null,
+                'Could not create statement', __FUNCTION__);
+            return $err;
+        }
+
+        $mode = $this->in_transaction ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
+        if (!@OCIExecute($result, $mode)) {
+            $err = $this->raiseError($result, null, null,
+                'Could not execute statement', __FUNCTION__);
+            return $err;
+        }
+
+        if (is_numeric($this->options['result_prefetching'])) {
+            @ocisetprefetch($result, $this->options['result_prefetching']);
+        }
+
+        $this->debug($query, 'query', array('is_manip' => $is_manip, 'when' => 'post', 'result' => $result));
+        return $result;
+    }
+
+    // }}}
+    // {{{ _affectedRows()
+
+    /**
+     * Returns the number of rows affected
+     *
+     * @param resource $result
+     * @param resource $connection
+     * @return mixed MDB2 Error Object or the number of rows affected
+     * @access private
+     */
+    function _affectedRows($connection, $result = null)
+    {
+        if (null === $connection) {
+            $connection = $this->getConnection();
+            if (PEAR::isError($connection)) {
+                return $connection;
+            }
+        }
+        return @OCIRowCount($result);
+    }
+
+    // }}}
+    // {{{ getServerVersion()
+
+    /**
+     * return version information about the server
+     *
+     * @param bool   $native  determines if the raw version string should be returned
+     * @return mixed array/string with version information or MDB2 error object
+     * @access public
+     */
+    function getServerVersion($native = false)
+    {
+        $connection = $this->getConnection();
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+        if ($this->connected_server_info) {
+            $server_info = $this->connected_server_info;
+        } else {
+            $server_info = @ociserverversion($connection);
+        }
+        if (!$server_info) {
+            return $this->raiseError(null, null, null,
+                'Could not get server information', __FUNCTION__);
+        }
+        // cache server_info
+        $this->connected_server_info = $server_info;
+        if (!$native) {
+            if (!preg_match('/ (\d+)\.(\d+)\.(\d+)\.([\d\.]+) /', $server_info, $tmp)) {
+                return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+                    'Could not parse version information:'.$server_info, __FUNCTION__);
+            }
+            $server_info = array(
+                'major' => $tmp[1],
+                'minor' => $tmp[2],
+                'patch' => $tmp[3],
+                'extra' => $tmp[4],
+                'native' => $server_info,
+            );
+        }
+        return $server_info;
+    }
+
+    // }}}
+    // {{{ prepare()
+
+    /**
+     * Prepares a query for multiple execution with execute().
+     * With some database backends, this is emulated.
+     * prepare() requires a generic query as string like
+     * 'INSERT INTO numbers VALUES(?,?)' or
+     * 'INSERT INTO numbers VALUES(:foo,:bar)'.
+     * The ? and :name and are placeholders which can be set using
+     * bindParam() and the query can be sent off using the execute() method.
+     * The allowed format for :name can be set with the 'bindname_format' option.
+     *
+     * @param string $query the query to prepare
+     * @param mixed   $types  array that contains the types of the placeholders
+     * @param mixed   $result_types  array that contains the types of the columns in
+     *                        the result set or MDB2_PREPARE_RESULT, if set to
+     *                        MDB2_PREPARE_MANIP the query is handled as a manipulation query
+     * @param mixed   $lobs   key (field) value (parameter) pair for all lob placeholders
+     * @return mixed resource handle for the prepared query on success, a MDB2
+     *        error on failure
+     * @access public
+     * @see bindParam, execute
+     */
+    function prepare($query, $types = null, $result_types = null, $lobs = array())
+    {
+        if ($this->options['emulate_prepared']) {
+            return parent::prepare($query, $types, $result_types, $lobs);
+        }
+        $is_manip = ($result_types === MDB2_PREPARE_MANIP);
+        $offset = $this->offset;
+        $limit = $this->limit;
+        $this->offset = $this->limit = 0;
+        $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
+        if ($result) {
+            if (PEAR::isError($result)) {
+                return $result;
+            }
+            $query = $result;
+        }
+        $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
+        $placeholder_type_guess = $placeholder_type = null;
+        $question = '?';
+        $colon = ':';
+        $positions = array();
+        $position = 0;
+        $parameter = -1;
+        while ($position < strlen($query)) {
+            $q_position = strpos($query, $question, $position);
+            $c_position = strpos($query, $colon, $position);
+            if ($q_position && $c_position) {
+                $p_position = min($q_position, $c_position);
+            } elseif ($q_position) {
+                $p_position = $q_position;
+            } elseif ($c_position) {
+                $p_position = $c_position;
+            } else {
+                break;
+            }
+            if (null === $placeholder_type) {
+                $placeholder_type_guess = $query[$p_position];
+            }
+            
+            $new_pos = $this->_skipDelimitedStrings($query, $position, $p_position);
+            if (PEAR::isError($new_pos)) {
+                return $new_pos;
+            }
+            if ($new_pos != $position) {
+                $position = $new_pos;
+                continue; //evaluate again starting from the new position
+            }
+
+            if ($query[$position] == $placeholder_type_guess) {
+                if (null === $placeholder_type) {
+                    $placeholder_type = $query[$p_position];
+                    $question = $colon = $placeholder_type;
+                    if (!empty($types) && is_array($types)) {
+                        if ($placeholder_type == ':') {
+                            if (is_int(key($types))) {
+                                $types_tmp = $types;
+                                $types = array();
+                                $count = -1;
+                            }
+                        } else {
+                            $types = array_values($types);
+                        }
+                    }
+                }
+                if ($placeholder_type == ':') {
+                    $regexp = '/^.{'.($position+1).'}('.$this->options['bindname_format'].').*$/s';
+                    $parameter = preg_replace($regexp, '\\1', $query);
+                    if ($parameter === '') {
+                        $err = $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
+                            'named parameter name must match "bindname_format" option', __FUNCTION__);
+                        return $err;
+                    }
+                    // use parameter name in type array
+                    if (isset($count) && isset($types_tmp[++$count])) {
+                        $types[$parameter] = $types_tmp[$count];
+                    }
+                    $length = strlen($parameter) + 1;
+                } else {
+                    ++$parameter;
+                    //$length = strlen($parameter);
+                    $length = 1; // strlen('?')
+                }
+                if (!in_array($parameter, $positions)) {
+                    $positions[] = $parameter;
+                }
+                if (isset($types[$parameter])
+                    && ($types[$parameter] == 'clob' || $types[$parameter] == 'blob')
+                ) {
+                    if (!isset($lobs[$parameter])) {
+                        $lobs[$parameter] = $parameter;
+                    }
+                    $value = $this->quote(true, $types[$parameter]);
+                    if (PEAR::isError($value)) {
+                        return $value;
+                    }
+                    $query = substr_replace($query, $value, $p_position, $length);
+                    $position = $p_position + strlen($value) - 1;
+                } elseif ($placeholder_type == '?') {
+                    $query = substr_replace($query, ':'.$parameter, $p_position, 1);
+                    $position = $p_position + $length;
+                } else {
+                    $position = $p_position + 1;
+                }
+            } else {
+                $position = $p_position;
+            }
+        }
+        if (is_array($lobs)) {
+            $columns = $variables = '';
+            foreach ($lobs as $parameter => $field) {
+                $columns.= ($columns ? ', ' : ' RETURNING ').$field;
+                $variables.= ($variables ? ', ' : ' INTO ').':'.$parameter;
+            }
+            $query.= $columns.$variables;
+        }
+        $connection = $this->getConnection();
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+        $statement = @OCIParse($connection, $query);
+        if (!$statement) {
+            $err = $this->raiseError(null, null, null,
+                'Could not create statement', __FUNCTION__);
+            return $err;
+        }
+
+        $class_name = 'MDB2_Statement_'.$this->phptype;
+        $obj = new $class_name($this, $statement, $positions, $query, $types, $result_types, $is_manip, $limit, $offset);
+        $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'post', 'result' => $obj));
+        return $obj;
+    }
+
+    // }}}
+    // {{{ nextID()
+
+    /**
+     * Returns the next free id of a sequence
+     *
+     * @param string $seq_name name of the sequence
+     * @param boolean $ondemand when true the sequence is
+     *                           automatic created, if it
+     *                           not exists
+     * @return mixed MDB2 Error Object or id
+     * @access public
+     */
+    function nextID($seq_name, $ondemand = true)
+    {
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+        $query = "SELECT $sequence_name.nextval FROM DUAL";
+        $this->pushErrorHandling(PEAR_ERROR_RETURN);
+        $this->expectError(MDB2_ERROR_NOSUCHTABLE);
+        $result = $this->queryOne($query, 'integer');
+        $this->popExpect();
+        $this->popErrorHandling();
+        if (PEAR::isError($result)) {
+            if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
+                $this->loadModule('Manager', null, true);
+                $result = $this->manager->createSequence($seq_name);
+                if (PEAR::isError($result)) {
+                    return $result;
+                }
+                return $this->nextId($seq_name, false);
+            }
+        }
+        return $result;
+    }
+
+    // }}}
+    // {{{ lastInsertID()
+
+    /**
+     * Returns the autoincrement ID if supported or $id or fetches the current
+     * ID in a sequence called: $table.(empty($field) ? '' : '_'.$field)
+     *
+     * @param string $table name of the table into which a new row was inserted
+     * @param string $field name of the field into which a new row was inserted
+     * @return mixed MDB2 Error Object or id
+     * @access public
+     */
+    function lastInsertID($table = null, $field = null)
+    {
+        $old_seq = $table.(empty($field) ? '' : '_'.$field);
+        $sequence_name = $this->quoteIdentifier($this->getSequenceName($table), true);
+        $result = $this->queryOne("SELECT $sequence_name.currval", 'integer');
+        if (PEAR::isError($result)) {
+            $sequence_name = $this->quoteIdentifier($this->getSequenceName($old_seq), true);
+            $result = $this->queryOne("SELECT $sequence_name.currval", 'integer');
+        }
+
+        return $result;
+    }
+
+    // }}}
+    // {{{ currId()
+
+    /**
+     * Returns the current id of a sequence
+     *
+     * @param string $seq_name name of the sequence
+     * @return mixed MDB2_Error or id
+     * @access public
+     */
+    function currId($seq_name)
+    {
+        $sequence_name = $this->getSequenceName($seq_name);
+        $query = 'SELECT (last_number-1) FROM all_sequences';
+        $query.= ' WHERE sequence_name='.$this->quote($sequence_name, 'text');
+        $query.= ' OR sequence_name='.$this->quote(strtoupper($sequence_name), 'text');
+        return $this->queryOne($query, 'integer');
+    }
+}
+
+/**
+ * MDB2 OCI8 result driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Result_oci8 extends MDB2_Result_Common
+{
+    // }}}
+    // {{{ fetchRow()
+
+    /**
+     * Fetch a row and insert the data into an existing array.
+     *
+     * @param int       $fetchmode  how the array data should be indexed
+     * @param int    $rownum    number of the row where the data can be found
+     * @return int data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
+    {
+        if (null !== $rownum) {
+            $seek = $this->seek($rownum);
+            if (PEAR::isError($seek)) {
+                return $seek;
+            }
+        }
+        if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->db->fetchmode;
+        }
+        if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
+            @OCIFetchInto($this->result, $row, OCI_ASSOC+OCI_RETURN_NULLS);
+            if (is_array($row)
+                && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+            ) {
+                $row = array_change_key_case($row, $this->db->options['field_case']);
+            }
+        } else {
+            @OCIFetchInto($this->result, $row, OCI_RETURN_NULLS);
+        }
+        if (!$row) {
+            if (false === $this->result) {
+                $err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                    'resultset has already been freed', __FUNCTION__);
+                return $err;
+            }
+            return null;
+        }
+        // remove additional column at the end
+        if ($this->offset > 0) {
+            array_pop($row);
+        }
+        $mode = 0;
+        $rtrim = false;
+        if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
+            if (empty($this->types)) {
+                $mode += MDB2_PORTABILITY_RTRIM;
+            } else {
+                $rtrim = true;
+            }
+        }
+        if ($mode) {
+            $this->db->_fixResultArrayValues($row, $mode);
+        }
+        if (!empty($this->types)) {
+            $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
+        }
+        if (!empty($this->values)) {
+            $this->_assignBindColumns($row);
+        }
+        if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
+            $object_class = $this->db->options['fetch_class'];
+            if ($object_class == 'stdClass') {
+                $row = (object) $row;
+            } else {
+                $rowObj = new $object_class($row);
+                $row = $rowObj;
+            }
+        }
+        ++$this->rownum;
+        return $row;
+    }
+
+    // }}}
+    // {{{ _getColumnNames()
+
+    /**
+     * Retrieve the names of columns returned by the DBMS in a query result.
+     *
+     * @return  mixed   Array variable that holds the names of columns as keys
+     *                  or an MDB2 error on failure.
+     *                  Some DBMS may not return any columns when the result set
+     *                  does not contain any rows.
+     * @access private
+     */
+    function _getColumnNames()
+    {
+        $columns = array();
+        $numcols = $this->numCols();
+        if (PEAR::isError($numcols)) {
+            return $numcols;
+        }
+        for ($column = 0; $column < $numcols; $column++) {
+            $column_name = @OCIColumnName($this->result, $column + 1);
+            $columns[$column_name] = $column;
+        }
+        if ($this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE) {
+            $columns = array_change_key_case($columns, $this->db->options['field_case']);
+        }
+        return $columns;
+    }
+
+    // }}}
+    // {{{ numCols()
+
+    /**
+     * Count the number of columns returned by the DBMS in a query result.
+     *
+     * @return mixed integer value with the number of columns, a MDB2 error
+     *      on failure
+     * @access public
+     */
+    function numCols()
+    {
+        $cols = @OCINumCols($this->result);
+        if (null === $cols) {
+            if (false === $this->result) {
+                return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                    'resultset has already been freed', __FUNCTION__);
+            }
+            if (null === $this->result) {
+                return count($this->types);
+            }
+            return $this->db->raiseError(null, null, null,
+                'Could not get column count', __FUNCTION__);
+        }
+        if ($this->offset > 0) {
+            --$cols;
+        }
+        return $cols;
+    }
+
+    // }}}
+    // {{{ free()
+
+    /**
+     * Free the internal resources associated with $result.
+     *
+     * @return boolean true on success, false if $result is invalid
+     * @access public
+     */
+    function free()
+    {
+        if (is_resource($this->result) && $this->db->connection) {
+            $free = @OCIFreeCursor($this->result);
+            if (false === $free) {
+                return $this->db->raiseError(null, null, null,
+                    'Could not free result', __FUNCTION__);
+            }
+        }
+        $this->result = false;
+        return MDB2_OK;
+
+    }
+}
+
+/**
+ * MDB2 OCI8 buffered result driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_BufferedResult_oci8 extends MDB2_Result_oci8
+{
+    var $buffer;
+    var $buffer_rownum = - 1;
+
+    // {{{ _fillBuffer()
+
+    /**
+     * Fill the row buffer
+     *
+     * @param int $rownum   row number upto which the buffer should be filled
+                            if the row number is null all rows are ready into the buffer
+     * @return boolean true on success, false on failure
+     * @access protected
+     */
+    function _fillBuffer($rownum = null)
+    {
+        if (isset($this->buffer) && is_array($this->buffer)) {
+            if (null === $rownum) {
+                if (!end($this->buffer)) {
+                    return false;
+                }
+            } elseif (isset($this->buffer[$rownum])) {
+                return (bool)$this->buffer[$rownum];
+            }
+        }
+
+        $row = true;
+        while (((null === $rownum) || $this->buffer_rownum < $rownum)
+            && ($row = @OCIFetchInto($this->result, $buffer, OCI_RETURN_NULLS))
+        ) {
+            ++$this->buffer_rownum;
+            // remove additional column at the end
+            if ($this->offset > 0) {
+                array_pop($buffer);
+            }
+            if (empty($this->types)) {
+                foreach (array_keys($buffer) as $key) {
+                    if (is_a($buffer[$key], 'oci-lob')) {
+                        $buffer[$key] = $buffer[$key]->load();
+                    }
+                }
+            }
+            $this->buffer[$this->buffer_rownum] = $buffer;
+        }
+
+        if (!$row) {
+            ++$this->buffer_rownum;
+            $this->buffer[$this->buffer_rownum] = false;
+            return false;
+        }
+        return true;
+    }
+
+    // }}}
+    // {{{ fetchRow()
+
+    /**
+     * Fetch a row and insert the data into an existing array.
+     *
+     * @param int       $fetchmode  how the array data should be indexed
+     * @param int    $rownum    number of the row where the data can be found
+     * @return int data array on success, a MDB2 error on failure
+     * @access public
+     */
+    function fetchRow($fetchmode = MDB2_FETCHMODE_DEFAULT, $rownum = null)
+    {
+        if (false === $this->result) {
+            $err = $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                'resultset has already been freed', __FUNCTION__);
+            return $err;
+        }
+        if (null === $this->result) {
+            return null;
+        }
+        if (null !== $rownum) {
+            $seek = $this->seek($rownum);
+            if (PEAR::isError($seek)) {
+                return $seek;
+            }
+        }
+        $target_rownum = $this->rownum + 1;
+        if ($fetchmode == MDB2_FETCHMODE_DEFAULT) {
+            $fetchmode = $this->db->fetchmode;
+        }
+        if (!$this->_fillBuffer($target_rownum)) {
+            return null;
+        }
+        $row = $this->buffer[$target_rownum];
+        if ($fetchmode & MDB2_FETCHMODE_ASSOC) {
+            $column_names = $this->getColumnNames();
+            foreach ($column_names as $name => $i) {
+                $column_names[$name] = $row[$i];
+            }
+            $row = $column_names;
+        }
+        $mode = 0;
+        $rtrim = false;
+        if ($this->db->options['portability'] & MDB2_PORTABILITY_RTRIM) {
+            if (empty($this->types)) {
+                $mode += MDB2_PORTABILITY_RTRIM;
+            } else {
+                $rtrim = true;
+            }
+        }
+        if ($mode) {
+            $this->db->_fixResultArrayValues($row, $mode);
+        }
+        if (!empty($this->types)) {
+            $row = $this->db->datatype->convertResultRow($this->types, $row, $rtrim);
+        }
+        if (!empty($this->values)) {
+            $this->_assignBindColumns($row);
+        }
+        if ($fetchmode === MDB2_FETCHMODE_OBJECT) {
+            $object_class = $this->db->options['fetch_class'];
+            if ($object_class == 'stdClass') {
+                $row = (object) $row;
+            } else {
+                $rowObj = new $object_class($row);
+                $row = $rowObj;
+            }
+        }
+        ++$this->rownum;
+        return $row;
+    }
+
+    // }}}
+    // {{{ seek()
+
+    /**
+     * Seek to a specific row in a result set
+     *
+     * @param int    $rownum    number of the row where the data can be found
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function seek($rownum = 0)
+    {
+        if (false === $this->result) {
+            return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                'resultset has already been freed', __FUNCTION__);
+        }
+        $this->rownum = $rownum - 1;
+        return MDB2_OK;
+    }
+
+    // }}}
+    // {{{ valid()
+
+    /**
+     * Check if the end of the result set has been reached
+     *
+     * @return mixed true or false on sucess, a MDB2 error on failure
+     * @access public
+     */
+    function valid()
+    {
+        if (false === $this->result) {
+            return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                'resultset has already been freed', __FUNCTION__);
+        }
+        if (null === $this->result) {
+            return true;
+        }
+        if ($this->_fillBuffer($this->rownum + 1)) {
+            return true;
+        }
+        return false;
+    }
+
+    // }}}
+    // {{{ numRows()
+
+    /**
+     * Returns the number of rows in a result object
+     *
+     * @return mixed MDB2 Error Object or the number of rows
+     * @access public
+     */
+    function numRows()
+    {
+        if (false === $this->result) {
+            return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+                'resultset has already been freed', __FUNCTION__);
+        }
+        if (null === $this->result) {
+            return 0;
+        }
+        $this->_fillBuffer();
+        return $this->buffer_rownum;
+    }
+
+    // }}}
+    // {{{ free()
+
+    /**
+     * Free the internal resources associated with $result.
+     *
+     * @return boolean true on success, false if $result is invalid
+     * @access public
+     */
+    function free()
+    {
+        $this->buffer = null;
+        $this->buffer_rownum = null;
+        return parent::free();
+    }
+}
+
+/**
+ * MDB2 OCI8 statement driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Statement_oci8 extends MDB2_Statement_Common
+{
+    // {{{ Variables (Properties)
+
+    var $type_maxlengths = array();
+
+    // }}}
+    // {{{ bindParam()
+
+    /**
+     * Bind a variable to a parameter of a prepared query.
+     *
+     * @param   int     $parameter  the order number of the parameter in the query
+     *                               statement. The order number of the first parameter is 1.
+     * @param   mixed   &$value     variable that is meant to be bound to specified
+     *                               parameter. The type of the value depends on the $type argument.
+     * @param   string  $type       specifies the type of the field
+     * @param   int     $maxlength  specifies the maximum length of the field; if set to -1, the
+     *                               current length of $value is used
+     *
+     * @return  mixed   MDB2_OK on success, a MDB2 error on failure
+     *
+     * @access  public
+     */
+    function bindParam($parameter, &$value, $type = null, $maxlength = -1)
+    {
+        if (!is_numeric($parameter)) {
+            $parameter = preg_replace('/^:(.*)$/', '\\1', $parameter);
+        }
+        if (MDB2_OK === ($ret = parent::bindParam($parameter, $value, $type))) {
+            $this->type_maxlengths[$parameter] = $maxlength;
+        }
+
+        return $ret;
+    }
+
+    // }}}
+    // {{{ _execute()
+
+    /**
+     * Execute a prepared query statement helper method.
+     *
+     * @param mixed $result_class string which specifies which result class to use
+     * @param mixed $result_wrap_class string which specifies which class to wrap results in
+     *
+     * @return mixed MDB2_Result or integer (affected rows) on success,
+     *               a MDB2 error on failure
+     * @access private
+     */
+    function _execute($result_class = true, $result_wrap_class = false)
+    {
+        if (null === $this->statement) {
+            return parent::_execute($result_class, $result_wrap_class);
+        }
+        $this->db->last_query = $this->query;
+        $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'pre', 'parameters' => $this->values));
+        if ($this->db->getOption('disable_query')) {
+            $result = $this->is_manip ? 0 : null;
+            return $result;
+        }
+
+        $connection = $this->db->getConnection();
+        if (PEAR::isError($connection)) {
+            return $connection;
+        }
+
+        $result = MDB2_OK;
+        $lobs = $quoted_values = array();
+        $i = 0;
+        foreach ($this->positions as $parameter) {
+            if (!array_key_exists($parameter, $this->values)) {
+                return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+                    'Unable to bind to missing placeholder: '.$parameter, __FUNCTION__);
+            }
+            $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
+            if ($type == 'clob' || $type == 'blob') {
+                $lobs[$i]['file'] = false;
+                if (is_resource($this->values[$parameter])) {
+                    $fp = $this->values[$parameter];
+                    $this->values[$parameter] = '';
+                    while (!feof($fp)) {
+                        $this->values[$parameter] .= fread($fp, 8192);
+                    }
+                } elseif (is_a($this->values[$parameter], 'OCI-Lob')) {
+                    //do nothing
+                } elseif ($this->db->getOption('lob_allow_url_include')
+                          && preg_match('/^(\w+:\/\/)(.*)$/', $this->values[$parameter], $match)
+                ) {
+                    $lobs[$i]['file'] = true;
+                    if ($match[1] == 'file://') {
+                        $this->values[$parameter] = $match[2];
+                    }
+                }
+                $lobs[$i]['value'] = $this->values[$parameter];
+                $lobs[$i]['descriptor'] =& $this->values[$parameter];
+                // Test to see if descriptor has already been created for this
+                // variable (i.e. if it has been bound more than once):
+                if (!is_a($this->values[$parameter], 'OCI-Lob')) {
+                    $this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_LOB);
+                    if (false === $this->values[$parameter]) {
+                        $result = $this->db->raiseError(null, null, null,
+                            'Unable to create descriptor for LOB in parameter: '.$parameter, __FUNCTION__);
+                        break;
+                    }
+                }
+                $lob_type = ($type == 'blob' ? OCI_B_BLOB : OCI_B_CLOB);
+                if (!@OCIBindByName($this->statement, ':'.$parameter, $lobs[$i]['descriptor'], -1, $lob_type)) {
+                    $result = $this->db->raiseError($this->statement, null, null,
+                        'could not bind LOB parameter', __FUNCTION__);
+                    break;
+                }
+            } else if ($type == OCI_B_BFILE) {
+                // Test to see if descriptor has already been created for this
+                // variable (i.e. if it has been bound more than once):
+                if (!is_a($this->values[$parameter], "OCI-Lob")) {
+                    $this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_FILE);
+                    if (false === $this->values[$parameter]) {
+                        $result = $this->db->raiseError(null, null, null,
+                            'Unable to create descriptor for BFILE in parameter: '.$parameter, __FUNCTION__);
+                        break;
+                    }
+                }
+                if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
+                    $result = $this->db->raiseError($this->statement, null, null,
+                        'Could not bind BFILE parameter', __FUNCTION__);
+                    break;
+                }
+            } else if ($type == OCI_B_ROWID) {
+                // Test to see if descriptor has already been created for this
+                // variable (i.e. if it has been bound more than once):
+                if (!is_a($this->values[$parameter], "OCI-Lob")) {
+                    $this->values[$parameter] = @OCINewDescriptor($connection, OCI_D_ROWID);
+                    if (false === $this->values[$parameter]) {
+                        $result = $this->db->raiseError(null, null, null,
+                            'Unable to create descriptor for ROWID in parameter: '.$parameter, __FUNCTION__);
+                        break;
+                    }
+                }
+                if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
+                    $result = $this->db->raiseError($this->statement, null, null,
+                        'Could not bind ROWID parameter', __FUNCTION__);
+                    break;
+                }
+            } else if ($type == OCI_B_CURSOR) {
+                // Test to see if cursor has already been allocated for this
+                // variable (i.e. if it has been bound more than once):
+                if (!is_resource($this->values[$parameter]) || !get_resource_type($this->values[$parameter]) == "oci8 statement") {
+                    $this->values[$parameter] = @OCINewCursor($connection);
+                    if (false === $this->values[$parameter]) {
+                        $result = $this->db->raiseError(null, null, null,
+                        'Unable to allocate cursor for parameter: '.$parameter, __FUNCTION__);
+                    break;
+                    }
+                }
+                if (!@OCIBindByName($this->statement, ':'.$parameter, $this->values[$parameter], -1, $type)) {
+                    $result = $this->db->raiseError($this->statement, null, null,
+                        'Could not bind CURSOR parameter', __FUNCTION__);
+                    break;
+                }
+            } else {
+                $maxlength = array_key_exists($parameter, $this->type_maxlengths) ? $this->type_maxlengths[$parameter] : -1;
+                $this->values[$parameter] = $this->db->quote($this->values[$parameter], $type, false);
+                $quoted_values[$i] =& $this->values[$parameter];
+                if (PEAR::isError($quoted_values[$i])) {
+                    return $quoted_values[$i];
+                }
+                if (!@OCIBindByName($this->statement, ':'.$parameter, $quoted_values[$i], $maxlength)) {
+                    $result = $this->db->raiseError($this->statement, null, null,
+                        'could not bind non-abstract parameter', __FUNCTION__);
+                    break;
+                }
+            }
+            ++$i;
+        }
+
+        $lob_keys = array_keys($lobs);
+        if (!PEAR::isError($result)) {
+            $mode = (!empty($lobs) || $this->db->in_transaction) ? OCI_DEFAULT : OCI_COMMIT_ON_SUCCESS;
+            if (!@OCIExecute($this->statement, $mode)) {
+                $err = $this->db->raiseError($this->statement, null, null,
+                    'could not execute statement', __FUNCTION__);
+                return $err;
+            }
+
+            if (!empty($lobs)) {
+                foreach ($lob_keys as $i) {
+                    if ((null !== $lobs[$i]['value']) && $lobs[$i]['value'] !== '') {
+                        if (is_object($lobs[$i]['value'])) {
+                            // Probably a NULL LOB
+                            // @see http://bugs.php.net/bug.php?id=27485
+                            continue;
+                        }
+                        if ($lobs[$i]['file']) {
+                            $result = $lobs[$i]['descriptor']->savefile($lobs[$i]['value']);
+                        } else {
+                            $result = $lobs[$i]['descriptor']->save($lobs[$i]['value']);
+                        }
+                        if (!$result) {
+                            $result = $this->db->raiseError(null, null, null,
+                                'Unable to save descriptor contents', __FUNCTION__);
+                            break;
+                        }
+                    }
+                }
+
+                if (!PEAR::isError($result)) {
+                    if (!$this->db->in_transaction) {
+                        if (!@OCICommit($connection)) {
+                            $result = $this->db->raiseError(null, null, null,
+                                'Unable to commit transaction', __FUNCTION__);
+                        }
+                    } else {
+                        ++$this->db->uncommitedqueries;
+                    }
+                }
+            }
+        }
+
+        if (PEAR::isError($result)) {
+            return $result;
+        }
+
+        if ($this->is_manip) {
+            $affected_rows = $this->db->_affectedRows($connection, $this->statement);
+            return $affected_rows;
+        }
+
+        $result = $this->db->_wrapResult($this->statement, $this->result_types,
+            $result_class, $result_wrap_class, $this->limit, $this->offset);
+        $this->db->debug($this->query, 'execute', array('is_manip' => $this->is_manip, 'when' => 'post', 'result' => $result));
+        return $result;
+    }
+
+    // }}}
+    // {{{ free()
+
+    /**
+     * Release resources allocated for the specified prepared query.
+     *
+     * @return mixed MDB2_OK on success, a MDB2 error on failure
+     * @access public
+     */
+    function free()
+    {
+        if (null === $this->positions) {
+            return $this->db->raiseError(MDB2_ERROR, null, null,
+                'Prepared statement has already been freed', __FUNCTION__);
+        }
+        $result = MDB2_OK;
+
+        if ((null !== $this->statement) && !@OCIFreeStatement($this->statement)) {
+            $result = $this->db->raiseError(null, null, null,
+                'Could not free statement', __FUNCTION__);
+        }
+
+        parent::free();
+        return $result;
+    }
+}
+?>
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