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-<?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: sqlite.php 295587 2010-02-28 17:16:38Z quipo $
-//
-
-/**
- * MDB2 SQLite driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_sqlite extends MDB2_Driver_Common
-{
- // {{{ properties
- var $string_quoting = array('start' => "'", 'end' => "'", 'escape' => "'", 'escape_pattern' => false);
-
- var $identifier_quoting = array('start' => '"', 'end' => '"', 'escape' => '"');
-
- var $_lasterror = '';
-
- var $fix_assoc_fields_names = false;
-
- // }}}
- // {{{ constructor
-
- /**
- * Constructor
- */
- function __construct()
- {
- parent::__construct();
-
- $this->phptype = 'sqlite';
- $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'] = true;
- $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'] = 'emulated';
- $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) {
- $native_code = @sqlite_last_error($this->connection);
- }
- $native_msg = $this->_lasterror
- ? html_entity_decode($this->_lasterror) : @sqlite_error_string($native_code);
-
- // 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 (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, $native_msg);
- }
-
- // }}}
- // {{{ escape()
-
- /**
- * Quotes a string so it can be safely used in a query. It will quote
- * the text so it can safely be used within a query.
- *
- * @param string the input string to quote
- * @param bool escape wildcards
- *
- * @return string quoted string
- *
- * @access public
- */
- function escape($text, $escape_wildcards = false)
- {
- $text = @sqlite_escape_string($text);
- return $text;
- }
-
- // }}}
- // {{{ beginTransaction()
-
- /**
- * Start a transaction or set a savepoint.
- *
- * @param string name of a savepoint to set
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- */
- function beginTransaction($savepoint = null)
- {
- $this->debug('Starting transaction/savepoint', __FUNCTION__, array('is_manip' => true, 'savepoint' => $savepoint));
- if (null !== $savepoint) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'savepoints are not supported', __FUNCTION__);
- }
- if ($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');
- }
- $query = 'BEGIN TRANSACTION '.$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 (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 (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;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ function setTransactionIsolation()
-
- /**
- * Set the transacton isolation level.
- *
- * @param string standard isolation level
- * READ UNCOMMITTED (allows dirty reads)
- * READ COMMITTED (prevents dirty reads)
- * REPEATABLE READ (prevents nonrepeatable reads)
- * SERIALIZABLE (prevents phantom reads)
- * @param array some transaction options:
- * 'wait' => 'WAIT' | 'NO WAIT'
- * 'rw' => 'READ WRITE' | 'READ ONLY'
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- *
- * @access public
- * @since 2.1.1
- */
- function setTransactionIsolation($isolation, $options = array())
- {
- $this->debug('Setting transaction isolation level', __FUNCTION__, array('is_manip' => true));
- switch ($isolation) {
- case 'READ UNCOMMITTED':
- $isolation = 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()
- {
- $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 (!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__);
- }
- }
-
- $connect_function = ($this->options['persistent'] ? 'sqlite_popen' : 'sqlite_open');
- $php_errormsg = '';
- if (version_compare('5.1.0', PHP_VERSION, '>')) {
- @ini_set('track_errors', true);
- $connection = @$connect_function($database_file);
- @ini_restore('track_errors');
- } else {
- $connection = @$connect_function($database_file, 0666, $php_errormsg);
- }
- $this->_lasterror = $php_errormsg;
- if (!$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)
- {
- @sqlite_query("PRAGMA short_column_names = 1", $connection);
- $this->fix_assoc_fields_names = true;
- }
-
- $this->connection = $connection;
- $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 (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 || $force) {
- @sqlite_close($this->connection);
- }
- } 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;
- }
-
- if (null === $connection) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- }
-
- $function = $this->options['result_buffering']
- ? 'sqlite_query' : 'sqlite_unbuffered_query';
- $php_errormsg = '';
- if (version_compare('5.1.0', PHP_VERSION, '>')) {
- @ini_set('track_errors', true);
- do {
- $result = @$function($query.';', $connection);
- } while (sqlite_last_error($connection) == SQLITE_SCHEMA);
- @ini_restore('track_errors');
- } else {
- do {
- $result = @$function($query.';', $connection, SQLITE_BOTH, $php_errormsg);
- } while (sqlite_last_error($connection) == SQLITE_SCHEMA);
- }
- $this->_lasterror = $php_errormsg;
-
- if (!$result) {
- $code = null;
- if (0 === strpos($this->_lasterror, 'no such table')) {
- $code = MDB2_ERROR_NOSUCHTABLE;
- }
- $err = $this->raiseError($code, 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)
- {
- if (null === $connection) {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- }
- return @sqlite_changes($connection);
- }
-
- // }}}
- // {{{ _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)
- {
- $connection = $this->getConnection();
- if (PEAR::isError($connection)) {
- return $connection;
- }
- $value = @sqlite_last_insert_rowid($connection);
- if (!$value) {
- return $this->raiseError(null, null, null,
- 'Could not get last insert ID', __FUNCTION__);
- }
- return $value;
- }
-
- // }}}
- // {{{ 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');
- }
-}
-
-/**
- * MDB2 SQLite result driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Result_sqlite 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) {
- $row = @sqlite_fetch_array($this->result, SQLITE_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 {
- $row = @sqlite_fetch_array($this->result, SQLITE_NUM);
- }
- 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;
- }
- $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 {
- $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++) {
- $column_name = @sqlite_field_name($this->result, $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()
- {
- $cols = @sqlite_num_fields($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__);
- }
- return $cols;
- }
-}
-
-/**
- * MDB2 SQLite buffered result driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_BufferedResult_sqlite extends MDB2_Result_sqlite
-{
- // {{{ 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 (!@sqlite_seek($this->result, $rownum)) {
- 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 MDB2_OK;
- }
- return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
- 'tried to seek to an invalid row number ('.$rownum.')', __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()
- {
- $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()
- {
- $rows = @sqlite_num_rows($this->result);
- if (null === $rows) {
- 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;
- }
- return $this->db->raiseError(null, null, null,
- 'Could not get row count', __FUNCTION__);
- }
- return $rows;
- }
-}
-
-/**
- * MDB2 SQLite statement driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Statement_sqlite extends MDB2_Statement_Common
-{
-
-}
-?> \ No newline at end of file
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