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+<?php
+// vim: set et ts=4 sw=4 fdm=marker:
+// +----------------------------------------------------------------------+
+// | PHP versions 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> |
+// +----------------------------------------------------------------------+
+//
+//
+
+/**
+ * MDB2 SQLite3 driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Driver_sqlite3 extends MDB2_Driver_Common
+{
+ // {{{ properties
+ public $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => false);
+
+ public $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
+
+ public $_lasterror = '';
+
+ public $fix_assoc_fields_names = false;
+
+ // }}}
+ // {{{ constructor
+
+ /**
+ * Constructor
+ */
+ function __construct()
+ {
+ parent::__construct();
+
+ $this->phptype = 'sqlite3';
+ $this->dbsyntax = 'sqlite';
+
+ $this->supported['sequences'] = 'emulated';
+ $this->supported['indexes'] = true;
+ $this->supported['affected_rows'] = true;
+ $this->supported['summary_functions'] = true;
+ $this->supported['order_by_text'] = true;
+ $this->supported['current_id'] = 'emulated';
+ $this->supported['limit_queries'] = true;
+ $this->supported['LOBs'] = true;
+ $this->supported['replace'] = true;
+ $this->supported['transactions'] = false;
+ $this->supported['savepoints'] = false;
+ $this->supported['sub_selects'] = true;
+ $this->supported['triggers'] = true;
+ $this->supported['auto_increment'] = true;
+ $this->supported['primary_key'] = false; // requires alter table implementation
+ $this->supported['result_introspection'] = false; // not implemented
+ $this->supported['prepared_statements'] = true;
+ $this->supported['identifier_quoting'] = true;
+ $this->supported['pattern_escaping'] = false;
+ $this->supported['new_link'] = false;
+
+ $this->options['DBA_username'] = false;
+ $this->options['DBA_password'] = false;
+ $this->options['base_transaction_name'] = '___php_MDB2_sqlite_auto_commit_off';
+ $this->options['fixed_float'] = 0;
+ $this->options['database_path'] = '';
+ $this->options['database_extension'] = '';
+ $this->options['server_version'] = '';
+ $this->options['max_identifiers_length'] = 128; //no real limit
+ }
+
+ // }}}
+ // {{{ errorInfo()
+
+ /**
+ * This method is used to collect information about an error
+ *
+ * @param integer $error
+ * @return array
+ * @access public
+ */
+ function errorInfo($error = null)
+ {
+ $native_code = null;
+ if ($this->connection) {
+ $native_code = $this->connection->lastErrorCode();
+ }
+ $native_msg = $this->_lasterror
+ ? html_entity_decode($this->_lasterror) : $this->connection->lastErrorMsg();
+
+ // PHP 5.2+ prepends the function name to $php_errormsg, so we need
+ // this hack to work around it, per bug #9599.
+ $native_msg = preg_replace('/^sqlite[a-z_]+\(\)[^:]*: /', '', $native_msg);
+
+ if (is_null($error)) {
+ static $error_regexps;
+ if (empty($error_regexps)) {
+ $error_regexps = array(
+ '/^no such table:/' => MDB2_ERROR_NOSUCHTABLE,
+ '/^no such index:/' => MDB2_ERROR_NOT_FOUND,
+ '/^(table|index) .* already exists$/' => MDB2_ERROR_ALREADY_EXISTS,
+ '/PRIMARY KEY must be unique/i' => MDB2_ERROR_CONSTRAINT,
+ '/is not unique/' => MDB2_ERROR_CONSTRAINT,
+ '/columns .* are not unique/i' => MDB2_ERROR_CONSTRAINT,
+ '/uniqueness constraint failed/' => MDB2_ERROR_CONSTRAINT,
+ '/may not be NULL/' => MDB2_ERROR_CONSTRAINT_NOT_NULL,
+ '/^no such column:/' => MDB2_ERROR_NOSUCHFIELD,
+ '/no column named/' => MDB2_ERROR_NOSUCHFIELD,
+ '/column not present in both tables/i' => MDB2_ERROR_NOSUCHFIELD,
+ '/^near ".*": syntax error$/' => MDB2_ERROR_SYNTAX,
+ '/[0-9]+ values for [0-9]+ columns/i' => MDB2_ERROR_VALUE_COUNT_ON_ROW,
+ );
+ }
+ foreach ($error_regexps as $regexp => $code) {
+ if (preg_match($regexp, $native_msg)) {
+ $error = $code;
+ break;
+ }
+ }
+ }
+ return array($error, $native_code, $native_msg);
+ }
+
+ // }}}
+ // {{{ escape()
+
+ /**
+ * Quotes a string so it can be safely used in a query. It will quote
+ * the text so it can safely be used within a query.
+ *
+ * @param string the input string to quote
+ * @param bool escape wildcards
+ *
+ * @return string quoted string
+ *
+ * @access public
+ */
+ public function escape($text, $escape_wildcards = false)
+ {
+ if($this->connection){
+ return $this->connection->escapeString($text);
+ }else{
+ return str_replace("'","''",$text);//TODO; more
+ }
+ }
+
+ // }}}
+ // {{{ beginTransaction()
+
+ /**
+ * Start a transaction or set a savepoint.
+ *
+ * @param string name of a savepoint to set
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function beginTransaction($savepoint = null)
+ {
+ $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+ if (!is_null($savepoint)) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'savepoints are not supported', __FUNCTION__);
+ } elseif ($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');
+ }
+ $query = 'BEGIN TRANSACTION '.$this->options['base_transaction_name'];
+ $result =$this->_doQuery($query, true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = true;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ commit()
+
+ /**
+ * Commit the database changes done during a transaction that is in
+ * progress or release a savepoint. This function may only be called when
+ * auto-committing is disabled, otherwise it will fail. Therefore, a new
+ * transaction is implicitly started after committing the pending changes.
+ *
+ * @param string name of a savepoint to release
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function commit($savepoint = null)
+ {
+ $this->debug('Committing transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+ if (!$this->in_transaction) {
+ return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+ 'commit/release savepoint cannot be done changes are auto committed', __FUNCTION__);
+ }
+ if (!is_null($savepoint)) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'savepoints are not supported', __FUNCTION__);
+ }
+
+ $query = 'COMMIT TRANSACTION '.$this->options['base_transaction_name'];
+ $result =$this->_doQuery($query, true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{
+
+ /**
+ * Cancel any database changes done during a transaction or since a specific
+ * savepoint that is in progress. This function may only be called when
+ * auto-committing is disabled, otherwise it will fail. Therefore, a new
+ * transaction is implicitly started after canceling the pending changes.
+ *
+ * @param string name of a savepoint to rollback to
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function rollback($savepoint = null)
+ {
+ $this->debug('Rolling back transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
+ if (!$this->in_transaction) {
+ return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+ 'rollback cannot be done changes are auto committed', __FUNCTION__);
+ }
+ if (!is_null($savepoint)) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'savepoints are not supported', __FUNCTION__);
+ }
+
+ $query = 'ROLLBACK TRANSACTION '.$this->options['base_transaction_name'];
+ $result =$this->_doQuery($query, true);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $this->in_transaction = false;
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ function setTransactionIsolation()
+
+ /**
+ * Set the transacton isolation level.
+ *
+ * @param string standard isolation level
+ * READ UNCOMMITTED (allows dirty reads)
+ * READ COMMITTED (prevents dirty reads)
+ * REPEATABLE READ (prevents nonrepeatable reads)
+ * SERIALIZABLE (prevents phantom reads)
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ * @since 2.1.1
+ */
+ static function setTransactionIsolation($isolation,$options=array())
+ {
+ $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
+ switch ($isolation) {
+ case 'READ UNCOMMITTED':
+ $isolation = 0;
+ break;
+ case 'READ COMMITTED':
+ case 'REPEATABLE READ':
+ case 'SERIALIZABLE':
+ $isolation = 1;
+ break;
+ default:
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'isolation level is not supported: '.$isolation, __FUNCTION__);
+ }
+
+ $query = "PRAGMA read_uncommitted=$isolation";
+ return $this->_doQuery($query, true);
+ }
+
+ // }}}
+ // {{{ getDatabaseFile()
+
+ /**
+ * Builds the string with path+dbname+extension
+ *
+ * @return string full database path+file
+ * @access protected
+ */
+ function _getDatabaseFile($database_name)
+ {
+ if ($database_name === '' || $database_name === ':memory:') {
+ return $database_name;
+ }
+ return $this->options['database_path'].$database_name.$this->options['database_extension'];
+ }
+
+ // }}}
+ // {{{ connect()
+
+ /**
+ * Connect to the database
+ *
+ * @return true on success, MDB2 Error Object on failure
+ **/
+ function connect()
+ {
+ if($this->connection instanceof SQLite3){
+ return MDB2_OK;
+ }
+ global $SERVERROOT;
+ $datadir=OC_CONFIG::getValue( "datadirectory", "$SERVERROOT/data" );
+ $database_file = $this->_getDatabaseFile($this->database_name);
+ if (is_resource($this->connection)) {
+ //if (count(array_diff($this->connected_dsn, $this->dsn)) == 0
+ if (MDB2::areEquals($this->connected_dsn, $this->dsn)
+ && $this->connected_database_name == $database_file
+ && $this->opened_persistent == $this->options['persistent']
+ ) {
+ return MDB2_OK;
+ }
+ $this->disconnect(false);
+ }
+
+ if (!PEAR::loadExtension($this->phptype)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'extension '.$this->phptype.' is not compiled into PHP', __FUNCTION__);
+ }
+
+ if (empty($this->database_name)) {
+ return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
+ 'unable to establish a connection', __FUNCTION__);
+ }
+
+ if ($database_file !== ':memory:') {
+ if(!strpos($database_file,'.db')){
+ $database_file="$datadir/$database_file.db";
+ }
+ if (!file_exists($database_file)) {
+ if (!touch($database_file)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'Could not create database file', __FUNCTION__);
+ }
+ if (!isset($this->dsn['mode'])
+ || !is_numeric($this->dsn['mode'])
+ ) {
+ $mode = 0644;
+ } else {
+ $mode = octdec($this->dsn['mode']);
+ }
+ if (!chmod($database_file, $mode)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'Could not be chmodded database file', __FUNCTION__);
+ }
+ if (!file_exists($database_file)) {
+ return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'Could not be found database file', __FUNCTION__);
+ }
+ }
+ if (!is_file($database_file)) {
+ return $this->raiseError(MDB2_ERROR_INVALID, null, null,
+ 'Database is a directory name', __FUNCTION__);
+ }
+ if (!is_readable($database_file)) {
+ return $this->raiseError(MDB2_ERROR_ACCESS_VIOLATION, null, null,
+ 'Could not read database file', __FUNCTION__);
+ }
+ }
+
+ $php_errormsg = '';
+ $this->connection = new SQLite3($database_file);
+ if(is_callable(array($this->connection,'busyTimeout'))){//busy timout is only available in php>=5.3
+ $this->connection->busyTimeout(100);
+ }
+ $this->_lasterror = $this->connection->lastErrorMsg();
+ if (!$this->connection) {
+ return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null,
+ 'unable to establish a connection', __FUNCTION__);
+ }
+
+ if ($this->fix_assoc_fields_names ||
+ $this->options['portability'] & MDB2_PORTABILITY_FIX_ASSOC_FIELD_NAMES)
+ {
+ $this->connection->exec("PRAGMA short_column_names = 1");
+ $this->fix_assoc_fields_names = true;
+ }
+
+ $this->connected_dsn = $this->dsn;
+ $this->connected_database_name = $database_file;
+ $this->opened_persistent = $this->getoption('persistent');
+ $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
+
+ 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)
+ {
+ $database_file = $this->_getDatabaseFile($name);
+ $result = file_exists($database_file);
+ return $result;
+ }
+
+ // }}}
+ // {{{ 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 ($this->connection instanceof SQLite3) {
+ if ($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) {
+ $this->connection->close();
+ }
+ } else {
+ return false;
+ }
+ return parent::disconnect($force);
+ }
+
+ // }}}
+ // {{{ _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->options['disable_query']) {
+ $result = $is_manip ? 0 : null;
+ return $result;
+ }
+ $result=$this->connection->query($query.';');
+ $this->_lasterror = $this->connection->lastErrorMsg();
+
+ if (!$result) {
+ $err =$this->raiseError(null, null, null,
+ 'Could not execute statement', __FUNCTION__);
+ return $err;
+ }
+
+ $this->debug($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)
+ {
+ return $this->connection->changes();
+ }
+
+ // }}}
+ // {{{ _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, $offset)
+ {
+ if ($this->options['portability'] & MDB2_PORTABILITY_DELETE_COUNT) {
+ if (preg_match('/^\s*DELETE\s+FROM\s+(\S+)\s*$/i', $query)) {
+ $query = preg_replace('/^\s*DELETE\s+FROM\s+(\S+)\s*$/',
+ 'DELETE FROM \1 WHERE 1=1', $query);
+ }
+ }
+ if ($limit > 0
+ && !preg_match('/LIMIT\s*\d(?:\s*(?:,|OFFSET)\s*\d+)?(?:[^\)]*)?$/i', $query)
+ ) {
+ $query = rtrim($query);
+ if (substr($query, -1) == ';') {
+ $query = substr($query, 0, -1);
+ }
+ if ($is_manip) {
+ $query.= " LIMIT $limit";
+ } else {
+ $query.= " LIMIT $offset,$limit";
+ }
+ }
+ return $query;
+ }
+
+ // }}}
+ // {{{ 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)
+ {
+ $server_info = false;
+ if ($this->connected_server_info) {
+ $server_info = $this->connected_server_info;
+ } elseif ($this->options['server_version']) {
+ $server_info = $this->options['server_version'];
+ } elseif (function_exists('sqlite_libversion')) {
+ $server_info = @sqlite_libversion();
+ }
+ if (!$server_info) {
+ return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
+ 'Requires either the "server_version" option or the sqlite_libversion() function', __FUNCTION__);
+ }
+ // cache server_info
+ $this->connected_server_info = $server_info;
+ if (!$native) {
+ $tmp = explode('.', $server_info, 3);
+ $server_info = array(
+ 'major' => isset($tmp[0]) ? $tmp[0] : null,
+ 'minor' => isset($tmp[1]) ? $tmp[1] : null,
+ 'patch' => isset($tmp[2]) ? $tmp[2] : null,
+ 'extra' => null,
+ 'native' => $server_info,
+ );
+ }
+ return $server_info;
+ }
+
+ // }}}
+ // {{{ replace()
+
+ /**
+ * Execute a SQL REPLACE query. A REPLACE query is identical to a INSERT
+ * query, except that if there is already a row in the table with the same
+ * key field values, the old row is deleted before the new row is inserted.
+ *
+ * The REPLACE type of query does not make part of the SQL standards. Since
+ * practically only SQLite implements it natively, this type of query is
+ * emulated through this method for other DBMS using standard types of
+ * queries inside a transaction to assure the atomicity of the operation.
+ *
+ * @access public
+ *
+ * @param string $table name of the table on which the REPLACE query will
+ * be executed.
+ * @param array $fields associative array that describes the fields and the
+ * values that will be inserted or updated in the specified table. The
+ * indexes of the array are the names of all the fields of the table. The
+ * values of the array are also associative arrays that describe the
+ * values and other properties of the table fields.
+ *
+ * Here follows a list of field properties that need to be specified:
+ *
+ * value:
+ * Value to be assigned to the specified field. This value may be
+ * of specified in database independent type format as this
+ * function can perform the necessary datatype conversions.
+ *
+ * Default:
+ * this property is required unless the Null property
+ * is set to 1.
+ *
+ * type
+ * Name of the type of the field. Currently, all types Metabase
+ * are supported except for clob and blob.
+ *
+ * Default: no type conversion
+ *
+ * null
+ * Boolean property that indicates that the value for this field
+ * should be set to null.
+ *
+ * The default value for fields missing in INSERT queries may be
+ * specified the definition of a table. Often, the default value
+ * is already null, but since the REPLACE may be emulated using
+ * an UPDATE query, make sure that all fields of the table are
+ * listed in this function argument array.
+ *
+ * Default: 0
+ *
+ * key
+ * Boolean property that indicates that this field should be
+ * handled as a primary key or at least as part of the compound
+ * unique index of the table that will determine the row that will
+ * updated if it exists or inserted a new row otherwise.
+ *
+ * This function will fail if no key field is specified or if the
+ * value of a key field is set to null because fields that are
+ * part of unique index they may not be null.
+ *
+ * Default: 0
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ */
+ function replace($table, $fields)
+ {
+ $count = count($fields);
+ $query = $values = '';
+ $keys = $colnum = 0;
+ for (reset($fields); $colnum < $count; next($fields), $colnum++) {
+ $name = key($fields);
+ if ($colnum > 0) {
+ $query .= ',';
+ $values.= ',';
+ }
+ $query.= $this->quoteIdentifier($name, true);
+ if (isset($fields[$name]['null']) && $fields[$name]['null']) {
+ $value = 'NULL';
+ } else {
+ $type = isset($fields[$name]['type']) ? $fields[$name]['type'] : null;
+ $value = $this->quote($fields[$name]['value'], $type);
+ if (PEAR::isError($value)) {
+ return $value;
+ }
+ }
+ $values.= $value;
+ if (isset($fields[$name]['key']) && $fields[$name]['key']) {
+ if ($value === 'NULL') {
+ return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
+ 'key value '.$name.' may not be NULL', __FUNCTION__);
+ }
+ $keys++;
+ }
+ }
+ if ($keys == 0) {
+ return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
+ 'not specified which fields are keys', __FUNCTION__);
+ }
+
+ $connection = $this->getConnection();
+ if (PEAR::isError($connection)) {
+ return $connection;
+ }
+
+ $table = $this->quoteIdentifier($table, true);
+ $query = "REPLACE INTO $table ($query) VALUES ($values)";
+ $result =$this->_doQuery($query, true, $connection);
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ return $this->_affectedRows($connection, $result);
+ }
+
+ // }}}
+ // {{{ 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);
+ $seqcol_name = $this->options['seqcol_name'];
+ $query = "INSERT INTO $sequence_name ($seqcol_name) VALUES (NULL)";
+ $this->pushErrorHandling(PEAR_ERROR_RETURN);
+ $this->expectError(MDB2_ERROR_NOSUCHTABLE);
+ $result =$this->_doQuery($query, true);
+ $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 $this->raiseError($result, null, null,
+ 'on demand sequence '.$seq_name.' could not be created', __FUNCTION__);
+ } else {
+ return $this->nextID($seq_name, false);
+ }
+ }
+ return $result;
+ }
+ $value = $this->lastInsertID();
+ if (is_numeric($value)) {
+ $query = "DELETE FROM $sequence_name WHERE $seqcol_name < $value";
+ $result =$this->_doQuery($query, true);
+ if (PEAR::isError($result)) {
+ $this->warnings[] = 'nextID: could not delete previous sequence table values from '.$seq_name;
+ }
+ }
+ return $value;
+ }
+
+ // }}}
+ // {{{ 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)
+ {
+ return $this->connection->lastInsertRowID();
+ }
+
+ // }}}
+ // {{{ currID()
+
+ /**
+ * Returns the current id of a sequence
+ *
+ * @param string $seq_name name of the sequence
+ * @return mixed MDB2 Error Object or id
+ * @access public
+ */
+ function currID($seq_name)
+ {
+ $sequence_name = $this->quoteIdentifier($this->getSequenceName($seq_name), true);
+ $seqcol_name = $this->quoteIdentifier($this->options['seqcol_name'], true);
+ $query = "SELECT MAX($seqcol_name) FROM $sequence_name";
+ return $this->queryOne($query, 'integer');
+ }
+
+ /**
+ * 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']
+ || $this->supported['prepared_statements'] !== true
+ ) {
+ $obj =& parent::prepare($query, $types, $result_types, $lobs);
+ return $obj;
+ }
+ $this->last_query = $query;
+ $is_manip = ($result_types === MDB2_PREPARE_MANIP);
+ $offset = $this->offset;
+ $limit = $this->limit;
+ $this->offset = $this->limit = 0;
+ $query = $this->_modifyQuery($query, $is_manip, $limit, $offset);
+ $result = $this->debug($query, __FUNCTION__, array('is_manip' => $is_manip, 'when' => 'pre'));
+ if ($result) {
+ if (PEAR::isError($result)) {
+ return $result;
+ }
+ $query = $result;
+ }
+ $placeholder_type_guess = $placeholder_type = null;
+ $question = '?';
+ $colon = ':';
+ $positions = array();
+ $position = 0;
+ while ($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 = $c_position;
+ } else {
+ break;
+ }
+ if (is_null($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] == $placeholder_type_guess) {
+ if (is_null($placeholder_type)) {
+ $placeholder_type = $query[$p_position];
+ $question = $colon = $placeholder_type;
+ }
+ if ($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;
+ }
+ $positions[$p_position] = $parameter;
+ $query = substr_replace($query, '?', $position, strlen($parameter)+1);
+ } else {
+ $positions[$p_position] = count($positions);
+ }
+ $position = $p_position + 1;
+ } else {
+ $position = $p_position;
+ }
+ }
+ $connection = $this->getConnection();
+ if (PEAR::isError($connection)) {
+ return $connection;
+ }
+ $statement =$this->connection->prepare($query);
+ if (!$statement) {
+ return $this->db->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
+ 'unable to prepare statement: '.$query);
+ }
+
+ $class_name = 'MDB2_Statement_'.$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;
+ }
+}
+
+/**
+ * MDB2 SQLite result driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Result_sqlite3 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, $rownum = null)
+ {
+ if (!is_null($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) {
+ //$row = @sqlite_fetch_array($this->result, SQLITE_ASSOC);
+ $row=$this->result->fetchArray(SQLITE3_ASSOC);
+ if (is_array($row)
+ && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
+ ) {
+ $row = array_change_key_case($row, $this->db->options['field_case']);
+ }
+ } else {
+ $row=$this->result->fetchArray(SQLITE3_NUM);
+ }
+ if (!$row) {
+ if ($this->result === false) {
+ $err =$this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'resultset has already been freed', __FUNCTION__);
+ return $err;
+ }
+ $null = null;
+ return $null;
+ }
+ $mode = $this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL;
+ $rtrim = false;
+ if ($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 {
+ $row = new $object_class($row);
+ }
+ }
+ ++$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 = $this->result->getColumnName($column);
+ $columns[$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.
+ *
+ * @access public
+ * @return mixed integer value with the number of columns, a MDB2 error
+ * on failure
+ */
+ function numCols()
+ {
+ $this->result->numColumns();
+ }
+}
+
+/**
+ * MDB2 SQLite buffered result driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_BufferedResult_sqlite3 extends MDB2_Result_sqlite3
+{
+ // {{{ 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)
+ {
+ $this->result->reset();
+ for($i=0;$i<$rownum;$i++){
+ $this->result->fetchArray();
+ }
+ $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()
+ {
+ $numrows = $this->numRows();
+ if (PEAR::isError($numrows)) {
+ return $numrows;
+ }
+ return $this->rownum < ($numrows - 1);
+ }
+
+ // }}}
+ // {{{ numRows()
+
+ /**
+ * Returns the number of rows in a result object
+ *
+ * @return mixed MDB2 Error Object or the number of rows
+ * @access public
+ */
+ function numRows()
+ {
+ $rows = 0;
+ $this->result->reset();
+ while($this->result->fetchArray()){
+ $rows++;
+ }
+ $this->result->reset();
+ return $rows;
+ }
+}
+
+/**
+ * MDB2 SQLite statement driver
+ *
+ * @package MDB2
+ * @category Database
+ * @author Lukas Smith <smith@pooteeweet.org>
+ */
+class MDB2_Statement_sqlite3 extends MDB2_Statement_Common
+{
+ // }}}
+ // {{{ function bindValue($parameter, &$value, $type = null)
+
+ private function getParamType($type){
+ switch(strtolower($type)){
+ case 'text':
+ return SQLITE3_TEXT;
+ case 'boolean':
+ case 'integer':
+ return SQLITE3_INTEGER;
+ case 'float':
+ return SQLITE3_FLOAT;
+ case 'blob':
+ return SQLITE3_BLOB;
+ }
+ }
+ /**
+ * Set the value of a parameter of a prepared query.
+ *
+ * @param int the order number of the parameter in the query
+ * statement. The order number of the first parameter is 1.
+ * @param mixed value that is meant to be assigned to specified
+ * parameter. The type of the value depends on the $type argument.
+ * @param string specifies the type of the field
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function bindValue($parameter, $value, $type = null){
+ if($type){
+ $type=$this->getParamType($type);
+ $this->statement->bindValue($parameter,$value,$type);
+ }else{
+ $this->statement->bindValue($parameter,$value);
+ }
+ return MDB2_OK;
+ }
+
+ /**
+ * Bind a variable to a parameter of a prepared query.
+ *
+ * @param int the order number of the parameter in the query
+ * statement. The order number of the first parameter is 1.
+ * @param mixed variable that is meant to be bound to specified
+ * parameter. The type of the value depends on the $type argument.
+ * @param string specifies the type of the field
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ */
+ function bindParam($parameter, &$value, $type = null){
+ if($type){
+ $type=$this->getParamType($type);
+ $this->statement->bindParam($parameter,$value,$type);
+ }else{
+ $this->statement->bindParam($parameter,$value);
+ }
+ return MDB2_OK;
+ }
+
+ /**
+ * Release resources allocated for the specified prepared query.
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ * @access public
+ */
+ function free()
+ {
+ $this->statement->close();
+ }
+
+ /**
+ * 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, $result_wrap_class = false){
+ if (is_null($this->statement)) {
+ $result =& parent::_execute($result_class, $result_wrap_class);
+ return $result;
+ }
+ $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 = $this->statement->execute();
+ if ($result==false) {
+ $err =$this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
+ 'cant execute statement', __FUNCTION__);
+ }
+
+ if ($this->is_manip) {
+ $affected_rows = $this->db->_affectedRows($connection, $result);
+ return $affected_rows;
+ }
+
+ $result =& $this->db->_wrapResult($result, $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 $result;
+ }
+
+ /**
+ * Set the values of multiple a parameter of a prepared query in bulk.
+ *
+ * @param array specifies all necessary information
+ * for bindValue() the array elements must use keys corresponding to
+ * the number of the position of the parameter.
+ * @param array specifies the types of the fields
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ * @see bindParam()
+ */
+ function bindValueArray($values, $types = null)
+ {
+ $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
+ $parameters = array_keys($values);
+ foreach ($parameters as $key => $parameter) {
+ $this->db->pushErrorHandling(PEAR_ERROR_RETURN);
+ $this->db->expectError(MDB2_ERROR_NOT_FOUND);
+ $err = $this->bindValue($parameter+1, $values[$parameter], $types[$key]);
+ $this->db->popExpect();
+ $this->db->popErrorHandling();
+ if (PEAR::isError($err)) {
+ if ($err->getCode() == MDB2_ERROR_NOT_FOUND) {
+ //ignore (extra value for missing placeholder)
+ continue;
+ }
+ return $err;
+ }
+ }
+ return MDB2_OK;
+ }
+ // }}}
+ // {{{ function bindParamArray(&$values, $types = null)
+
+ /**
+ * Bind the variables of multiple a parameter of a prepared query in bulk.
+ *
+ * @param array specifies all necessary information
+ * for bindParam() the array elements must use keys corresponding to
+ * the number of the position of the parameter.
+ * @param array specifies the types of the fields
+ *
+ * @return mixed MDB2_OK on success, a MDB2 error on failure
+ *
+ * @access public
+ * @see bindParam()
+ */
+ function bindParamArray(&$values, $types = null)
+ {
+ $types = is_array($types) ? array_values($types) : array_fill(0, count($values), null);
+ $parameters = array_keys($values);
+ foreach ($parameters as $key => $parameter) {
+ $err = $this->bindParam($parameter+1, $values[$parameter], $types[$key]);
+ if (PEAR::isError($err)) {
+ return $err;
+ }
+ }
+ return MDB2_OK;
+ }
+
+ // }}}
+ // {{{ function &execute($values = null, $result_class = true, $result_wrap_class = false)
+
+ /**
+ * Execute a prepared query statement.
+ *
+ * @param array specifies all necessary information
+ * for bindParam() the array elements must use keys corresponding
+ * to the number of the position of the parameter.
+ * @param mixed specifies which result class to use
+ * @param mixed specifies which class to wrap results in
+ *
+ * @return mixed MDB2_Result or integer (affected rows) on success,
+ * a MDB2 error on failure
+ * @access public
+ */
+ function &execute($values = null, $result_class = true, $result_wrap_class = false)
+ {
+ if (is_null($this->positions)) {
+ return $this->db->raiseError(MDB2_ERROR, null, null,
+ 'Prepared statement has already been freed', __FUNCTION__);
+ }
+ $values = (array)$values;
+ if (!empty($values)) {
+ if(count($this->types)){
+ $types=$this->types;
+ }else{
+ $types=null;
+ }
+ $err = $this->bindValueArray($values,$types);
+ if (PEAR::isError($err)) {
+ return $this->db->raiseError(MDB2_ERROR, null, null,
+ 'Binding Values failed with message: ' . $err->getMessage(), __FUNCTION__);
+ }
+ }
+ $result =$this->_execute($result_class, $result_wrap_class);
+ return $result;
+ }
+
+ function __destruct() {
+ $this->free();
+ }
+}
+
+?> \ No newline at end of file
generated by cgit v1.2.3 (git 2.39.1) at 2025-01-31 12:55:44 +0000