sqlite3 driver for mdb2

the only problem that I found with it so far is that it gives a database locked error on login,
the rest seems to work fine but more testing is required.

1 files changed, 412 insertions, 0 deletions

diff --git a/lib/MDB2/Driver/Datatype/sqlite3.php b/lib/MDB2/Driver/Datatype/sqlite3.php
new file mode 100644
index 00000000000..378d5540cbe
--- /dev/null
+++ b/lib/MDB2/Driver/Datatype/sqlite3.php
@@ -0,0 +1,412 @@
+<?php
+// vim: set et ts=4 sw=4 fdm=marker:
+// +----------------------------------------------------------------------+
+// | PHP version 5                                                        |
+// +----------------------------------------------------------------------+
+// | Copyright (c) 2011 Robin Appelman                                    |
+// | 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: Robin Appelman <icewind1991@gmail.com                        |
+// +----------------------------------------------------------------------+
+//
+// $Id: sqlite.php,v 1.67 2008/02/22 19:58:06 quipo Exp $
+//
+
+require_once('MDB2/Driver/Datatype/Common.php');
+
+/**
+ * MDB2 SQLite driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author  Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_Datatype_sqlite3 extends MDB2_Driver_Datatype_Common
+{
+    // {{{ _getCollationFieldDeclaration()
+
+    /**
+     * Obtain DBMS specific SQL code portion needed to set the COLLATION
+     * of a field declaration to be used in statements like CREATE TABLE.
+     *
+     * @param string $collation name of the collation
+     *
+     * @return string DBMS specific SQL code portion needed to set the COLLATION
+     *                of a field declaration.
+     */
+    function _getCollationFieldDeclaration($collation)
+    {
+        return 'COLLATE '.$collation;
+    }
+
+    // }}}
+    // {{{ 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'] : false;
+            $fixed = !empty($field['fixed']) ? $field['fixed'] : false;
+            return $fixed ? ($length ? 'CHAR('.$length.')' : 'CHAR('.$db->options['default_text_field_length'].')')
+                : ($length ? 'VARCHAR('.$length.')' : 'TEXT');
+        case 'clob':
+            if (!empty($field['length'])) {
+                $length = $field['length'];
+                if ($length <= 255) {
+                    return 'TINYTEXT';
+                } elseif ($length <= 65532) {
+                    return 'TEXT';
+                } elseif ($length <= 16777215) {
+                    return 'MEDIUMTEXT';
+                }
+            }
+            return 'LONGTEXT';
+        case 'blob':
+            if (!empty($field['length'])) {
+                $length = $field['length'];
+                if ($length <= 255) {
+                    return 'TINYBLOB';
+                } elseif ($length <= 65532) {
+                    return 'BLOB';
+                } elseif ($length <= 16777215) {
+                    return 'MEDIUMBLOB';
+                }
+            }
+            return 'LONGBLOB';
+        case 'integer':
+            if (!empty($field['length'])) {
+                $length = $field['length'];
+                if ($length <= 2) {
+                    return 'SMALLINT';
+                } elseif ($length == 3 || $length == 4) {
+                    return 'INTEGER';
+                } elseif ($length > 4) {
+                    return 'BIGINT';
+                }
+            }
+            return 'INTEGER';
+        case 'boolean':
+            return 'BOOLEAN';
+        case 'date':
+            return 'DATE';
+        case 'time':
+            return 'TIME';
+        case 'timestamp':
+            return 'DATETIME';
+        case 'float':
+            return 'DOUBLE'.($db->options['fixed_float'] ? '('.
+                ($db->options['fixed_float']+2).','.$db->options['fixed_float'].')' : '');
+        case 'decimal':
+            $length = !empty($field['length']) ? $field['length'] : 18;
+            $scale = !empty($field['scale']) ? $field['scale'] : $db->options['decimal_places'];
+            return 'DECIMAL('.$length.','.$scale.')';
+        }
+        return '';
+    }
+
+    // }}}
+    // {{{ _getIntegerDeclaration()
+
+    /**
+     * Obtain DBMS specific SQL code portion needed to declare an integer type
+     * field to be used in statements like CREATE TABLE.
+     *
+     * @param string  $name   name the field to be declared.
+     * @param string  $field  associative array with the name of the properties
+     *                        of the field being declared as array indexes.
+     *                        Currently, the types of supported field
+     *                        properties are as follows:
+     *
+     *                       unsigned
+     *                        Boolean flag that indicates whether the field
+     *                        should be declared as unsigned integer if
+     *                        possible.
+     *
+     *                       default
+     *                        Integer value to be used as default for this
+     *                        field.
+     *
+     *                       notnull
+     *                        Boolean flag that indicates whether this field is
+     *                        constrained to not be set to null.
+     * @return string  DBMS specific SQL code portion that should be used to
+     *                 declare the specified field.
+     * @access protected
+     */
+    function _getIntegerDeclaration($name, $field)
+    {
+        $db =$this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $default = $autoinc = '';
+        if (!empty($field['autoincrement'])) {
+            $autoinc = ' PRIMARY KEY AUTOINCREMENT';
+        } elseif (array_key_exists('default', $field)) {
+            if ($field['default'] === '') {
+                $field['default'] = empty($field['notnull']) ? null : 0;
+            }
+            $default = ' DEFAULT '.$this->quote($field['default'], 'integer');
+        }
+
+        $notnull = empty($field['notnull']) ? '' : ' NOT NULL';
+        $unsigned = empty($field['unsigned']) ? '' : ' UNSIGNED';
+        $name = $db->quoteIdentifier($name, true);
+        if($autoinc){
+			return $name.' '.$this->getTypeDeclaration($field).$autoinc;
+        }else{
+			return $name.' '.$this->getTypeDeclaration($field).$unsigned.$default.$notnull.$autoinc;
+        }
+    }
+
+    // }}}
+    // {{{ matchPattern()
+
+    /**
+     * build a pattern matching string
+     *
+     * @access public
+     *
+     * @param array $pattern even keys are strings, odd are patterns (% and _)
+     * @param string $operator optional pattern operator (LIKE, ILIKE and maybe others in the future)
+     * @param string $field optional field name that is being matched against
+     *                  (might be required when emulating ILIKE)
+     *
+     * @return string SQL pattern
+     */
+    function matchPattern($pattern, $operator = null, $field = null)
+    {
+        $db =$this->getDBInstance();
+        if (PEAR::isError($db)) {
+            return $db;
+        }
+
+        $match = '';
+        if (!is_null($operator)) {
+            $field = is_null($field) ? '' : $field.' ';
+            $operator = strtoupper($operator);
+            switch ($operator) {
+            // case insensitive
+            case 'ILIKE':
+                $match = $field.'LIKE ';
+                break;
+            // case sensitive
+            case 'LIKE':
+                $match = $field.'LIKE ';
+                break;
+            default:
+                return $db->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+                    'not a supported operator type:'. $operator, __FUNCTION__);
+            }
+        }
+        $match.= "'";
+        foreach ($pattern as $key => $value) {
+            if ($key % 2) {
+                $match.= $value;
+            } else {
+                $match.= $db->escapePattern($db->escape($value));
+            }
+        }
+        $match.= "'";
+        $match.= $this->patternEscapeString();
+        return $match;
+    }
+
+    // }}}
+    // {{{ _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']);
+        $length = !empty($field['length']) ? $field['length'] : null;
+        $unsigned = !empty($field['unsigned']) ? $field['unsigned'] : null;
+        $fixed = null;
+        $type = array();
+        switch ($db_type) {
+        case 'boolean':
+            $type[] = 'boolean';
+            break;
+        case 'tinyint':
+            $type[] = 'integer';
+            $type[] = 'boolean';
+            if (preg_match('/^(is|has)/', $field['name'])) {
+                $type = array_reverse($type);
+            }
+            $unsigned = preg_match('/ unsigned/i', $field['type']);
+            $length = 1;
+            break;
+        case 'smallint':
+            $type[] = 'integer';
+            $unsigned = preg_match('/ unsigned/i', $field['type']);
+            $length = 2;
+            break;
+        case 'mediumint':
+            $type[] = 'integer';
+            $unsigned = preg_match('/ unsigned/i', $field['type']);
+            $length = 3;
+            break;
+        case 'int':
+        case 'integer':
+        case 'serial':
+            $type[] = 'integer';
+            $unsigned = preg_match('/ unsigned/i', $field['type']);
+            $length = 4;
+            break;
+        case 'bigint':
+        case 'bigserial':
+            $type[] = 'integer';
+            $unsigned = preg_match('/ unsigned/i', $field['type']);
+            $length = 8;
+            break;
+        case 'clob':
+            $type[] = 'clob';
+            $fixed  = false;
+            break;
+        case 'tinytext':
+        case 'mediumtext':
+        case 'longtext':
+        case 'text':
+        case 'varchar':
+        case 'varchar2':
+            $fixed = false;
+        case 'char':
+            $type[] = 'text';
+            if ($length == '1') {
+                $type[] = 'boolean';
+                if (preg_match('/^(is|has)/', $field['name'])) {
+                    $type = array_reverse($type);
+                }
+            } elseif (strstr($db_type, 'text')) {
+                $type[] = 'clob';
+                $type = array_reverse($type);
+            }
+            if ($fixed !== false) {
+                $fixed = true;
+            }
+            break;
+        case 'date':
+            $type[] = 'date';
+            $length = null;
+            break;
+        case 'datetime':
+        case 'timestamp':
+            $type[] = 'timestamp';
+            $length = null;
+            break;
+        case 'time':
+            $type[] = 'time';
+            $length = null;
+            break;
+        case 'float':
+        case 'double':
+        case 'real':
+            $type[] = 'float';
+            break;
+        case 'decimal':
+        case 'numeric':
+            $type[] = 'decimal';
+            $length = $length.','.$field['decimal'];
+            break;
+        case 'tinyblob':
+        case 'mediumblob':
+        case 'longblob':
+        case 'blob':
+            $type[] = 'blob';
+            $length = null;
+            break;
+        case 'year':
+            $type[] = 'integer';
+            $type[] = 'date';
+            $length = null;
+            break;
+        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);
+    }
+
+    // }}}
+}
+
+?>
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