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-<?php
-// vim: set et ts=4 sw=4 fdm=marker:
-// +----------------------------------------------------------------------+
-// | PHP versions 4 and 5 |
-// +----------------------------------------------------------------------+
-// | Copyright (c) 1998-2004 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> |
-// +----------------------------------------------------------------------+
-//
-// $Id$
-//
-
-/**
- * MDB2 MySQL driver
- *
- * @package MDB2
- * @category Database
- * @author Lukas Smith <smith@pooteeweet.org>
- */
-class MDB2_Driver_mysqli extends MDB2_Driver_Common
-{
- // {{{ properties
- var $escape_quotes = "\\";
-
- // }}}
- // {{{ constructor
-
- /**
- * Constructor
- */
- function __construct()
- {
- parent::__construct();
-
- $this->phptype = 'mysqli';
- $this->dbsyntax = 'mysqli';
-
- $this->supported['sequences'] = 'emulated';
- $this->supported['indexes'] = true;
- $this->supported['affected_rows'] = true;
- $this->supported['transactions'] = false;
- $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['sub_selects'] = false;
- $this->supported['auto_increment'] = true;
- $this->supported['primary_key'] = true;
-
- $this->options['default_table_type'] = null;
- }
-
- // }}}
- // {{{ errorInfo()
-
- /**
- * This method is used to collect information about an error
- *
- * @param integer $error
- * @return array
- * @access public
- */
- function errorInfo($error = null)
- {
- if ($this->connection) {
- $native_code = @mysqli_errno($this->connection);
- $native_msg = @mysqli_error($this->connection);
- } else {
- $native_code = @mysqli_errno();
- $native_msg = @mysqli_error();
- }
- if (is_null($error)) {
- static $ecode_map;
- if (empty($ecode_map)) {
- $ecode_map = array(
- 1004 => MDB2_ERROR_CANNOT_CREATE,
- 1005 => MDB2_ERROR_CANNOT_CREATE,
- 1006 => MDB2_ERROR_CANNOT_CREATE,
- 1007 => MDB2_ERROR_ALREADY_EXISTS,
- 1008 => MDB2_ERROR_CANNOT_DROP,
- 1022 => MDB2_ERROR_ALREADY_EXISTS,
- 1044 => MDB2_ERROR_ACCESS_VIOLATION,
- 1046 => MDB2_ERROR_NODBSELECTED,
- 1048 => MDB2_ERROR_CONSTRAINT,
- 1049 => MDB2_ERROR_NOSUCHDB,
- 1050 => MDB2_ERROR_ALREADY_EXISTS,
- 1051 => MDB2_ERROR_NOSUCHTABLE,
- 1054 => MDB2_ERROR_NOSUCHFIELD,
- 1061 => MDB2_ERROR_ALREADY_EXISTS,
- 1062 => MDB2_ERROR_ALREADY_EXISTS,
- 1064 => MDB2_ERROR_SYNTAX,
- 1091 => MDB2_ERROR_NOT_FOUND,
- 1100 => MDB2_ERROR_NOT_LOCKED,
- 1136 => MDB2_ERROR_VALUE_COUNT_ON_ROW,
- 1142 => MDB2_ERROR_ACCESS_VIOLATION,
- 1146 => MDB2_ERROR_NOSUCHTABLE,
- 1216 => MDB2_ERROR_CONSTRAINT,
- 1217 => MDB2_ERROR_CONSTRAINT,
- );
- }
- if ($this->options['portability'] & MDB2_PORTABILITY_ERRORS) {
- $ecode_map[1022] = MDB2_ERROR_CONSTRAINT;
- $ecode_map[1048] = MDB2_ERROR_CONSTRAINT_NOT_NULL;
- $ecode_map[1062] = MDB2_ERROR_CONSTRAINT;
- } else {
- // Doing this in case mode changes during runtime.
- $ecode_map[1022] = MDB2_ERROR_ALREADY_EXISTS;
- $ecode_map[1048] = MDB2_ERROR_CONSTRAINT;
- $ecode_map[1062] = MDB2_ERROR_ALREADY_EXISTS;
- }
- if (isset($ecode_map[$native_code])) {
- $error = $ecode_map[$native_code];
- }
- }
- 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 $text the input string to quote
- * @return string quoted string
- * @access public
- */
- function escape($text)
- {
- return @mysqli_escape_string($this->connection, $text);
- }
-
- // }}}
- // {{{ quoteIdentifier()
-
- /**
- * Quote a string so it can be safely used as a table or column name
- *
- * Quoting style depends on which database driver is being used.
- *
- * MySQL can't handle the backtick character (<kbd>`</kbd>) in
- * table or column names.
- *
- * @param string $str identifier name to be quoted
- *
- * @return string quoted identifier string
- *
- * @access public
- * @internal
- */
- function quoteIdentifier($str)
- {
- return '`' . $str . '`';
- }
-
- // }}}
- // {{{ beginTransaction()
-
- /**
- * Start a transaction.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function beginTransaction()
- {
- $this->debug('starting transaction', 'beginTransaction');
- if (!$this->supports('transactions')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'beginTransaction: transactions are not in use');
- }
- if ($this->in_transaction) {
- return MDB2_OK; //nothing to do
- }
- $result = $this->_doQuery('SET AUTOCOMMIT = 0', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = true;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ commit()
-
- /**
- * Commit the database changes done during a transaction that is in
- * progress.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function commit()
- {
- $this->debug('commit transaction', 'commit');
- if (!$this->supports('transactions')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'commit: transactions are not in use');
- }
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'commit: transaction changes are being auto committed');
- }
- $result = $this->_doQuery('COMMIT', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = false;
- return MDB2_OK;
- }
-
- // }}}
- // {{{ rollback()
-
- /**
- * Cancel any database changes done during a transaction that is in
- * progress.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function rollback()
- {
- $this->debug('rolling back transaction', 'rollback');
- if (!$this->supports('transactions')) {
- return $this->raiseError(MDB2_ERROR_UNSUPPORTED, null, null,
- 'rollback: transactions are not in use');
- }
- if (!$this->in_transaction) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'rollback: transactions can not be rolled back when changes are auto committed');
- }
- $result = $this->_doQuery('ROLLBACK', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $result = $this->_doQuery('SET AUTOCOMMIT = 1', true);
- if (PEAR::isError($result)) {
- return $result;
- }
- $this->in_transaction = false;
- return MDB2_OK;
-
- }
-
- // }}}
- // {{{ connect()
-
- /**
- * Connect to the database
- *
- * @return true on success, MDB2 Error Object on failure
- */
- function connect()
- {
- if (is_object($this->connection)) {
- if (count(array_diff($this->connected_dsn, $this->dsn)) == 0) {
- return MDB2_OK;
- }
- $this->connection = 0;
- }
-
- if (!PEAR::loadExtension($this->phptype)) {
- return $this->raiseError(MDB2_ERROR_NOT_FOUND, null, null,
- 'connect: extension '.$this->phptype.' is not compiled into PHP');
- }
-
- @ini_set('track_errors', true);
- $php_errormsg = '';
-
- if ($this->options['ssl'] === true) {
- $init = @mysqli_init();
- @mysqli_ssl_set(
- $init,
- empty($this->dsn['key']) ? null : $this->dsn['key'],
- empty($this->dsn['cert']) ? null : $this->dsn['cert'],
- empty($this->dsn['ca']) ? null : $this->dsn['ca'],
- empty($this->dsn['capath']) ? null : $this->dsn['capath'],
- empty($this->dsn['cipher']) ? null : $this->dsn['cipher']
- );
- if ($connection = @mysqli_real_connect(
- $init,
- $this->dsn['hostspec'],
- $this->dsn['username'],
- $this->dsn['password'],
- $this->database_name,
- $this->dsn['port'],
- $this->dsn['socket']))
- {
- $connection = $init;
- }
- } else {
- $connection = @mysqli_connect(
- $this->dsn['hostspec'],
- $this->dsn['username'],
- $this->dsn['password'],
- $this->database_name,
- $this->dsn['port'],
- $this->dsn['socket']
- );
- }
-
- @ini_restore('track_errors');
-
- if (!$connection) {
- if (($err = @mysqli_connect_error()) != '') {
- return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $err);
- } else {
- return $this->raiseError(MDB2_ERROR_CONNECT_FAILED, null, null, $php_errormsg);
- }
- }
-
- $this->connection = $connection;
- $this->connected_dsn = $this->dsn;
- $this->connected_database_name = $this->database_name;
- $this->dbsyntax = $this->dsn['dbsyntax'] ? $this->dsn['dbsyntax'] : $this->phptype;
-
- $this->supported['transactions'] = false;
- if ($this->options['default_table_type']) {
- switch (strtoupper($this->options['default_table_type'])) {
- case 'BERKELEYDB':
- $this->options['default_table_type'] = 'BDB';
- case 'BDB':
- case 'INNODB':
- case 'GEMINI':
- $this->supported['transactions'] = true;
- break;
- case 'HEAP':
- case 'ISAM':
- case 'MERGE':
- case 'MRG_MYISAM':
- case 'MYISAM':
- break;
- default:
- $this->warnings[] = $default_table_type.
- ' is not a supported default table type';
- }
- }
-
- if ($this->options['use_transactions'] && !$this->supports('transactions')) {
- $this->warnings[] = $this->options['default_table_type'].
- ' is not a transaction-safe default table type; switched to INNODB';
- $this->options['default_table_type'] = 'INNODB';
- $this->supported['transactions'] = true;
- }
-
- return MDB2_OK;
- }
-
- // }}}
- // {{{ disconnect()
-
- /**
- * Log out and disconnect from the database.
- *
- * @return mixed true on success, false if not connected and error
- * object on error
- * @access public
- */
- function disconnect($force = true)
- {
- if (is_object($this->connection)) {
- if ($force) {
- @mysqli_close($this->connection);
- }
- $this->connection = 0;
- }
- return MDB2_OK;
- }
-
- // }}}
- // {{{ _doQuery()
-
- /**
- * Execute a query
- * @param string $query query
- * @param boolean $isManip if the query is a manipulation query
- * @param resource $connection
- * @param string $database_name
- * @return result or error object
- * @access protected
- */
- function _doQuery($query, $isManip = false, $connection = null, $database_name = null)
- {
- $this->last_query = $query;
- $this->debug($query, 'query');
- if ($this->options['disable_query']) {
- if ($isManip) {
- return 0;
- }
- return null;
- }
-
- if (is_null($connection)) {
- $err = $this->connect();
- if (PEAR::isError($err)) {
- return $err;
- }
- $connection = $this->connection;
- }
- if (is_null($database_name)) {
- $database_name = $this->database_name;
- }
-
- if ($database_name) {
- if ($database_name != $this->connected_database_name) {
- if (!@mysqli_select_db($connection, $database_name)) {
- return $this->raiseError();
- }
- $this->connected_database_name = $database_name;
- }
- }
-
- $function = $this->options['result_buffering']
- ? 'mysqli_query' : 'mysqli_unbuffered_query';
- $result = @$function($connection, $query);
- if (!$result) {
- return $this->raiseError();
- }
-
- if ($isManip) {
- return @mysqli_affected_rows($connection);
- }
- return $result;
- }
-
- // }}}
- // {{{ _modifyQuery()
-
- /**
- * Changes a query string for various DBMS specific reasons
- *
- * @param string $query query to modify
- * @return the new (modified) query
- * @access protected
- */
- function _modifyQuery($query, $isManip, $limit, $offset)
- {
- if ($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 ($isManip) {
- return $query . " LIMIT $limit";
- } else {
- return $query . " LIMIT $offset, $limit";
- }
- }
- return $query;
- }
-
- // }}}
- // {{{ 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 :[a-zA-Z] and are placeholders which can be set using
- * bindParam() and the query can be send off using the execute() method.
- *
- * @param string $query the query to prepare
- * @param mixed $types array that contains the types of the placeholders
- * @param mixed $result_types array that contains the types of the columns in
- * the result set
- * @return mixed resource handle for the prepared query on success, a MDB2
- * error on failure
- * @access public
- * @see bindParam, execute
- */
- function &prepare($query, $types = null, $result_types = null)
- {
- $isManip = MDB2::isManip($query);
- $query = $this->_modifyQuery($query, $isManip, $this->row_limit, $this->row_offset);
- $this->debug($query, 'prepare');
- $placeholder_type_guess = $placeholder_type = null;
- $question = '?';
- $colon = ':';
- $position = 0;
- while ($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];
- }
- if (is_int($quote = strpos($query, "'", $position)) && $quote < $p_position) {
- if (!is_int($end_quote = strpos($query, "'", $quote + 1))) {
- $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'prepare: query with an unterminated text string specified');
- return $err;
- }
- switch ($this->escape_quotes) {
- case '':
- case "'":
- $position = $end_quote + 1;
- break;
- default:
- if ($end_quote == $quote + 1) {
- $position = $end_quote + 1;
- } else {
- if ($query[$end_quote-1] == $this->escape_quotes) {
- $position = $end_quote;
- } else {
- $position = $end_quote + 1;
- }
- }
- break;
- }
- } elseif ($query[$position] == $placeholder_type_guess) {
- if ($placeholder_type_guess == '?') {
- break;
- }
- if (is_null($placeholder_type)) {
- $placeholder_type = $query[$p_position];
- $question = $colon = $placeholder_type;
- }
- $name = preg_replace('/^.{'.($position+1).'}([a-z0-9_]+).*$/si', '\\1', $query);
- if ($name === '') {
- $err =& $this->raiseError(MDB2_ERROR_SYNTAX, null, null,
- 'prepare: named parameter with an empty name');
- return $err;
- }
- $query = substr_replace($query, '?', $position, strlen($name)+1);
- $position = $p_position + 1;
- } else {
- $position = $p_position;
- }
- }
- $statement = @mysqli_prepare($this->connection, $query);
- $class_name = 'MDB2_Statement_'.$this->phptype;
- $obj =& new $class_name($this, $statement, $query, $types, $result_types);
- return $obj;
- }
-
- // }}}
- // {{{ 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 REPLACE query just updates its values instead of
- * inserting a new row.
- *
- * The REPLACE type of query does not make part of the SQL standards. Since
- * practically only MySQL 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.= $name;
- if (isset($fields[$name]['null']) && $fields[$name]['null']) {
- $value = 'NULL';
- } else {
- $value = $this->quote($fields[$name]['value'], $fields[$name]['type']);
- }
- $values.= $value;
- if (isset($fields[$name]['key']) && $fields[$name]['key']) {
- if ($value === 'NULL') {
- return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
- 'replace: key value '.$name.' may not be NULL');
- }
- $keys++;
- }
- }
- if ($keys == 0) {
- return $this->raiseError(MDB2_ERROR_CANNOT_REPLACE, null, null,
- 'replace: not specified which fields are keys');
- }
- $query = "REPLACE INTO $table ($query) VALUES ($values)";
- $this->last_query = $query;
- $this->debug($query, 'query');
- return $this->_doQuery($query, true);
- }
-
- // }}}
- // {{{ nextID()
-
- /**
- * returns the next free id of a sequence
- *
- * @param string $seq_name name of the sequence
- * @param boolean $ondemand when true the seqence is
- * automatic created, if it
- * not exists
- *
- * @return mixed MDB2 Error Object or id
- * @access public
- */
- function nextID($seq_name, $ondemand = true)
- {
- $sequence_name = $this->getSequenceName($seq_name);
- $query = "INSERT INTO $sequence_name (".$this->options['seqcol_name'].") VALUES (NULL)";
- $this->expectError(MDB2_ERROR_NOSUCHTABLE);
- $result = $this->_doQuery($query, true);
- $this->popExpect();
- if (PEAR::isError($result)) {
- if ($ondemand && $result->getCode() == MDB2_ERROR_NOSUCHTABLE) {
- $this->loadModule('Manager');
- // Since we are creating the sequence on demand
- // we know the first id = 1 so initialize the
- // sequence at 2
- $result = $this->manager->createSequence($seq_name, 2);
- if (PEAR::isError($result)) {
- return $this->raiseError(MDB2_ERROR, null, null,
- 'nextID: on demand sequence '.$seq_name.' could not be created');
- } else {
- // First ID of a newly created sequence is 1
- return 1;
- }
- }
- return $result;
- }
- $value = @mysqli_insert_id($this->connection);
- if (is_numeric($value)) {
- $query = "DELETE FROM $sequence_name WHERE ".$this->options['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
- *
- * @param mixed $id value as returned by getBeforeId()
- * @param string $table name of the table into which a new row was inserted
- * @return mixed MDB2 Error Object or id
- * @access public
- */
- function lastInsertID($table = null, $field = null)
- {
- $value = @mysqli_insert_id($this->connection);
- if (!$value) {
- return $this->raiseError();
- }
- 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 = $this->getSequenceName($seq_name);
- $query = "SELECT MAX(".$this->options['seqcol_name'].") FROM $sequence_name";
- return $this->queryOne($query, 'integer');
- }
-}
-
-class MDB2_Result_mysqli 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) {
- $row = @mysqli_fetch_assoc($this->result);
- if (is_array($row)
- && $this->db->options['portability'] & MDB2_PORTABILITY_FIX_CASE
- ) {
- $row = array_change_key_case($row, $this->db->options['field_case']);
- }
- } else {
- $row = @mysqli_fetch_row($this->result);
- }
-
- if (!$row) {
- if (is_null($this->result)) {
- $err =& $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'fetchRow: resultset has already been freed');
- return $err;
- }
- $null = null;
- return $null;
- }
- if ($this->db->options['portability'] & MDB2_PORTABILITY_EMPTY_TO_NULL) {
- $this->db->_fixResultArrayValues($row, MDB2_PORTABILITY_EMPTY_TO_NULL);
- }
- if (!empty($this->values)) {
- $this->_assignBindColumns($row);
- }
- if (!empty($this->types)) {
- $row = $this->db->datatype->convertResultRow($this->types, $row);
- }
- if ($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 an associative array variable
- * that will hold the names of columns. The
- * indexes of the array are the column names
- * mapped to lower case and the values are the
- * respective numbers of the columns starting
- * from 0. Some DBMS may not return any
- * columns when the result set does not
- * contain any rows.
- *
- * a MDB2 error on failure
- * @access private
- */
- function _getColumnNames()
- {
- $columns = array();
- $numcols = $this->numCols();
- if (PEAR::isError($numcols)) {
- return $numcols;
- }
- for ($column = 0; $column < $numcols; $column++) {
- $column_info = @mysqli_fetch_field_direct($this->result, $column);
- $columns[$column_info->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()
- {
- $cols = @mysqli_num_fields($this->result);
- if (is_null($cols)) {
- if (is_null($this->result)) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'numCols: resultset has already been freed');
- }
- return $this->db->raiseError();
- }
- return $cols;
- }
-
- // }}}
- // {{{ free()
-
- /**
- * Free the internal resources associated with result.
- *
- * @return boolean true on success, false if result is invalid
- * @access public
- */
- function free()
- {
- @mysqli_free_result($this->result);
- $this->result = null;
- return MDB2_OK;
- }
-}
-
-class MDB2_BufferedResult_mysqli extends MDB2_Result_mysqli
-{
- // }}}
- // {{{ 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 ($this->rownum != ($rownum - 1) && !@mysqli_data_seek($this->result, $rownum)) {
- if (is_null($this->result)) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'seek: resultset has already been freed');
- }
- return $this->db->raiseError(MDB2_ERROR_INVALID, null, null,
- 'seek: tried to seek to an invalid row number ('.$rownum.')');
- }
- $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()
- {
- $rows = @mysqli_num_rows($this->result);
- if (is_null($rows)) {
- if (is_null($this->result)) {
- return $this->db->raiseError(MDB2_ERROR_NEED_MORE_DATA, null, null,
- 'numRows: resultset has already been freed');
- }
- return $this->raiseError();
- }
- return $rows;
- }
-}
-
-class MDB2_Statement_mysqli extends MDB2_Statement_Common
-{
- // {{{ _execute()
-
- /**
- * Execute a prepared query statement helper method.
- *
- * @param mixed $result_class string which specifies which result class to use
- * @param mixed $result_wrap_class string which specifies which class to wrap results in
- * @return mixed a result handle or MDB2_OK on success, a MDB2 error on failure
- * @access private
- */
- function &_execute($result_class = true, $result_wrap_class = false)
- {
- $isManip = MDB2::isManip($this->query);
- $this->db->last_query = $this->query;
- $this->db->debug($this->query, 'execute');
- if ($this->db->getOption('disable_query')) {
- if ($isManip) {
- $return = 0;
- return $return;
- }
- $null = null;
- return $null;
- }
-
- $connected = $this->db->connect();
- if (PEAR::isError($connected)) {
- return $connected;
- }
-
- if (!empty($this->values)) {
- $parameters = array(0 => $this->statement, 1 => '');
- $i = 0;
- foreach ($this->values as $parameter => $value) {
- $type = array_key_exists($parameter, $this->types) ? $this->types[$parameter] : null;
- $close = false;
- if ($type == 'clob' || $type == 'blob') {
- if (preg_match('/^(\w+:\/\/)(.*)$/', $value, $match)) {
- $close = true;
- if ($match[1] == 'file://') {
- $value = $match[2];
- }
- $value = @fopen($value, 'r');
- }
- }
- if (is_resource($value)) {
- while (!@feof($value)) {
- $data = @fread($value, $this->db->options['lob_buffer_length']);
- @mysqli_stmt_send_long_data($this->statement, $i, $data);
- }
- if ($close) {
- @fclose($value);
- }
- $parameters[] = null;
- $parameters[1].= 'b';
- } elseif ($type == 'clob' || $type == 'blob') {
- do {
- $data = substr($value, 0, $this->db->options['lob_buffer_length']);
- $value = substr($value, $this->db->options['lob_buffer_length']);
- @mysqli_stmt_send_long_data($this->statement, $i, $data);
- } while ($value);
- $parameters[] = null;
- $parameters[1].= 'b';
- } else {
- $parameters[] = $this->db->quote($value, $type, false);
- $parameters[1].= $this->db->datatype->mapPrepareDatatype($type);
- }
- ++$i;
- }
- $result = @call_user_func_array('mysqli_stmt_bind_param', $parameters);
- if ($result === false) {
- $err =& $this->db->raiseError();
- return $err;
- }
- }
-
- if (!@mysqli_stmt_execute($this->statement)) {
- $err =& $this->db->raiseError();
- return $err;
- }
-
- if (!mysqli_stmt_result_metadata($this->statement)) {
- $result = @mysqli_stmt_affected_rows($this->statement);
- return $result;
- }
-
- if ($this->db->options['result_buffering']) {
- mysqli_stmt_store_result($this->statement);
- }
-
- $result &= $this->db->_wrapResult($result, $this->types,
- $result_class, $result_wrap_class);
- return $result;
- }
-
- // }}}
-
- // }}}
-
- // }}}
- // {{{ free()
-
- /**
- * Release resources allocated for the specified prepared query.
- *
- * @return mixed MDB2_OK on success, a MDB2 error on failure
- * @access public
- */
- function free()
- {
- if (!@mysqli_stmt_close($this->statement)) {
- return $this->db->raiseError();
- }
- return MDB2_OK;
- }
-}
-?> \ No newline at end of file