969 lines
31 KiB
PHP
969 lines
31 KiB
PHP
<?php
|
|
/* vim: set expandtab tabstop=4 shiftwidth=4 foldmethod=marker: */
|
|
// +----------------------------------------------------------------------+
|
|
// | PHP Version 4 |
|
|
// +----------------------------------------------------------------------+
|
|
// | Copyright (c) 1997-2004 The PHP Group |
|
|
// +----------------------------------------------------------------------+
|
|
// | This source file is subject to version 2.02 of the PHP license, |
|
|
// | that is bundled with this package in the file LICENSE, and is |
|
|
// | available at through the world-wide-web at |
|
|
// | http://www.php.net/license/2_02.txt. |
|
|
// | If you did not receive a copy of the PHP license and are unable to |
|
|
// | obtain it through the world-wide-web, please send a note to |
|
|
// | license@php.net so we can mail you a copy immediately. |
|
|
// +----------------------------------------------------------------------+
|
|
// | Author: Daniel Convissor <danielc@php.net> |
|
|
// +----------------------------------------------------------------------+
|
|
//
|
|
// $Id: mysqli.php 3355 2005-06-11 22:14:40Z nbm $
|
|
|
|
|
|
// EXPERIMENTAL
|
|
|
|
|
|
require_once 'DB/common.php';
|
|
|
|
/**
|
|
* Database independent query interface definition for PHP's mysqli
|
|
* extension.
|
|
*
|
|
* This is for MySQL versions 4.1 and above. Requires PHP 5.
|
|
*
|
|
* Note that persistent connections no longer exist.
|
|
*
|
|
* @package DB
|
|
* @version $Id: mysqli.php 3355 2005-06-11 22:14:40Z nbm $
|
|
* @category Database
|
|
* @author Daniel Convissor <danielc@php.net>
|
|
* @since Class functional since Release 1.6.3
|
|
*/
|
|
class DB_mysqli extends DB_common
|
|
{
|
|
// {{{ properties
|
|
|
|
var $connection;
|
|
var $phptype, $dbsyntax;
|
|
var $prepare_tokens = array();
|
|
var $prepare_types = array();
|
|
var $num_rows = array();
|
|
var $transaction_opcount = 0;
|
|
var $autocommit = true;
|
|
var $fetchmode = DB_FETCHMODE_ORDERED; /* Default fetch mode */
|
|
var $_db = false;
|
|
|
|
/**
|
|
* Array for converting MYSQLI_*_FLAG constants to text values
|
|
* @var array
|
|
* @access public
|
|
* @since Property available since Release 1.6.5
|
|
*/
|
|
var $mysqli_flags = array(
|
|
MYSQLI_NOT_NULL_FLAG => 'not_null',
|
|
MYSQLI_PRI_KEY_FLAG => 'primary_key',
|
|
MYSQLI_UNIQUE_KEY_FLAG => 'unique_key',
|
|
MYSQLI_MULTIPLE_KEY_FLAG => 'multiple_key',
|
|
MYSQLI_BLOB_FLAG => 'blob',
|
|
MYSQLI_UNSIGNED_FLAG => 'unsigned',
|
|
MYSQLI_ZEROFILL_FLAG => 'zerofill',
|
|
MYSQLI_AUTO_INCREMENT_FLAG => 'auto_increment',
|
|
MYSQLI_TIMESTAMP_FLAG => 'timestamp',
|
|
MYSQLI_SET_FLAG => 'set',
|
|
// MYSQLI_NUM_FLAG => 'numeric', // unnecessary
|
|
// MYSQLI_PART_KEY_FLAG => 'multiple_key', // duplicatvie
|
|
MYSQLI_GROUP_FLAG => 'group_by'
|
|
);
|
|
|
|
/**
|
|
* Array for converting MYSQLI_TYPE_* constants to text values
|
|
* @var array
|
|
* @access public
|
|
* @since Property available since Release 1.6.5
|
|
*/
|
|
var $mysqli_types = array(
|
|
MYSQLI_TYPE_DECIMAL => 'decimal',
|
|
MYSQLI_TYPE_TINY => 'tinyint',
|
|
MYSQLI_TYPE_SHORT => 'int',
|
|
MYSQLI_TYPE_LONG => 'int',
|
|
MYSQLI_TYPE_FLOAT => 'float',
|
|
MYSQLI_TYPE_DOUBLE => 'double',
|
|
// MYSQLI_TYPE_NULL => 'DEFAULT NULL', // let flags handle it
|
|
MYSQLI_TYPE_TIMESTAMP => 'timestamp',
|
|
MYSQLI_TYPE_LONGLONG => 'bigint',
|
|
MYSQLI_TYPE_INT24 => 'mediumint',
|
|
MYSQLI_TYPE_DATE => 'date',
|
|
MYSQLI_TYPE_TIME => 'time',
|
|
MYSQLI_TYPE_DATETIME => 'datetime',
|
|
MYSQLI_TYPE_YEAR => 'year',
|
|
MYSQLI_TYPE_NEWDATE => 'date',
|
|
MYSQLI_TYPE_ENUM => 'enum',
|
|
MYSQLI_TYPE_SET => 'set',
|
|
MYSQLI_TYPE_TINY_BLOB => 'tinyblob',
|
|
MYSQLI_TYPE_MEDIUM_BLOB => 'mediumblob',
|
|
MYSQLI_TYPE_LONG_BLOB => 'longblob',
|
|
MYSQLI_TYPE_BLOB => 'blob',
|
|
MYSQLI_TYPE_VAR_STRING => 'varchar',
|
|
MYSQLI_TYPE_STRING => 'char',
|
|
MYSQLI_TYPE_GEOMETRY => 'geometry',
|
|
);
|
|
|
|
// }}}
|
|
// {{{ constructor
|
|
|
|
/**
|
|
* DB_mysql constructor.
|
|
*
|
|
* @access public
|
|
*/
|
|
function DB_mysqli()
|
|
{
|
|
$this->DB_common();
|
|
$this->phptype = 'mysqli';
|
|
$this->dbsyntax = 'mysqli';
|
|
$this->features = array(
|
|
'prepare' => false,
|
|
'ssl' => true,
|
|
'transactions' => true,
|
|
'limit' => 'alter'
|
|
);
|
|
$this->errorcode_map = array(
|
|
1004 => DB_ERROR_CANNOT_CREATE,
|
|
1005 => DB_ERROR_CANNOT_CREATE,
|
|
1006 => DB_ERROR_CANNOT_CREATE,
|
|
1007 => DB_ERROR_ALREADY_EXISTS,
|
|
1008 => DB_ERROR_CANNOT_DROP,
|
|
1022 => DB_ERROR_ALREADY_EXISTS,
|
|
1046 => DB_ERROR_NODBSELECTED,
|
|
1048 => DB_ERROR_CONSTRAINT,
|
|
1050 => DB_ERROR_ALREADY_EXISTS,
|
|
1051 => DB_ERROR_NOSUCHTABLE,
|
|
1054 => DB_ERROR_NOSUCHFIELD,
|
|
1062 => DB_ERROR_ALREADY_EXISTS,
|
|
1064 => DB_ERROR_SYNTAX,
|
|
1100 => DB_ERROR_NOT_LOCKED,
|
|
1136 => DB_ERROR_VALUE_COUNT_ON_ROW,
|
|
1146 => DB_ERROR_NOSUCHTABLE,
|
|
1216 => DB_ERROR_CONSTRAINT,
|
|
1217 => DB_ERROR_CONSTRAINT,
|
|
);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ connect()
|
|
|
|
/**
|
|
* Connect to a database and log in as the specified user.
|
|
*
|
|
* @param string $dsn the data source name (see DB::parseDSN for syntax)
|
|
* @param boolean $persistent (optional) whether the connection should
|
|
* be persistent
|
|
* @return mixed DB_OK on success, a DB error on failure
|
|
* @access public
|
|
*/
|
|
function connect($dsninfo, $persistent = false)
|
|
{
|
|
if (!DB::assertExtension('mysqli')) {
|
|
return $this->raiseError(DB_ERROR_EXTENSION_NOT_FOUND);
|
|
}
|
|
|
|
$this->dsn = $dsninfo;
|
|
$conn = false;
|
|
@ini_set('track_errors', true);
|
|
|
|
if ($this->getOption('ssl') === true) {
|
|
$init = mysqli_init();
|
|
mysqli_ssl_set(
|
|
$init,
|
|
empty($dsninfo['key']) ? null : $dsninfo['key'],
|
|
empty($dsninfo['cert']) ? null : $dsninfo['cert'],
|
|
empty($dsninfo['ca']) ? null : $dsninfo['ca'],
|
|
empty($dsninfo['capath']) ? null : $dsninfo['capath'],
|
|
empty($dsninfo['cipher']) ? null : $dsninfo['cipher']
|
|
);
|
|
if ($conn = @mysqli_real_connect($init,
|
|
$dsninfo['hostspec'],
|
|
$dsninfo['username'],
|
|
$dsninfo['password'],
|
|
$dsninfo['database'],
|
|
$dsninfo['port'],
|
|
$dsninfo['socket']))
|
|
{
|
|
$conn = $init;
|
|
}
|
|
} else {
|
|
$conn = @mysqli_connect(
|
|
$dsninfo['hostspec'],
|
|
$dsninfo['username'],
|
|
$dsninfo['password'],
|
|
$dsninfo['database'],
|
|
$dsninfo['port'],
|
|
$dsninfo['socket']
|
|
);
|
|
}
|
|
|
|
@ini_restore('track_errors');
|
|
|
|
if (!$conn) {
|
|
if (($err = @mysqli_connect_error()) != '') {
|
|
return $this->raiseError(DB_ERROR_CONNECT_FAILED, null, null,
|
|
null, $err);
|
|
} elseif (empty($php_errormsg)) {
|
|
return $this->raiseError(DB_ERROR_CONNECT_FAILED);
|
|
} else {
|
|
return $this->raiseError(DB_ERROR_CONNECT_FAILED, null, null,
|
|
null, $php_errormsg);
|
|
}
|
|
}
|
|
|
|
if ($dsninfo['database']) {
|
|
$this->_db = $dsninfo['database'];
|
|
}
|
|
|
|
$this->connection = $conn;
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ disconnect()
|
|
|
|
/**
|
|
* Log out and disconnect from the database.
|
|
*
|
|
* @return boolean true on success, false if not connected
|
|
* @access public
|
|
*/
|
|
function disconnect()
|
|
{
|
|
$ret = @mysqli_close($this->connection);
|
|
$this->connection = null;
|
|
return $ret;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ simpleQuery()
|
|
|
|
/**
|
|
* Send a query to MySQL and return the results as a MySQL resource
|
|
* identifier.
|
|
*
|
|
* @param string $query the SQL query
|
|
* @return mixed a valid MySQL result for successful SELECT
|
|
* queries, DB_OK for other successful queries.
|
|
* A DB error is returned on failure.
|
|
* @access public
|
|
*/
|
|
function simpleQuery($query)
|
|
{
|
|
$ismanip = DB::isManip($query);
|
|
$this->last_query = $query;
|
|
$query = $this->modifyQuery($query);
|
|
if ($this->_db) {
|
|
if (!@mysqli_select_db($this->connection, $this->_db)) {
|
|
return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
}
|
|
}
|
|
if (!$this->autocommit && $ismanip) {
|
|
if ($this->transaction_opcount == 0) {
|
|
$result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=0');
|
|
$result = @mysqli_query($this->connection, 'BEGIN');
|
|
if (!$result) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
}
|
|
$this->transaction_opcount++;
|
|
}
|
|
$result = @mysqli_query($this->connection, $query);
|
|
if (!$result) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
# this next block is still sketchy..
|
|
if (is_object($result)) {
|
|
$numrows = $this->numrows($result);
|
|
if (is_object($numrows)) {
|
|
return $numrows;
|
|
}
|
|
# need to come up with different means for next line
|
|
# since $result is object (int)$result won't fly...
|
|
// $this->num_rows[(int)$result] = $numrows;
|
|
return $result;
|
|
}
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ nextResult()
|
|
|
|
/**
|
|
* Move the internal mysql result pointer to the next available result.
|
|
*
|
|
* This method has not been implemented yet.
|
|
*
|
|
* @param resource $result a valid sql result resource
|
|
* @return false
|
|
* @access public
|
|
*/
|
|
function nextResult($result)
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ fetchInto()
|
|
|
|
/**
|
|
* Fetch a row and insert the data into an existing array.
|
|
*
|
|
* Formating of the array and the data therein are configurable.
|
|
* See DB_result::fetchInto() for more information.
|
|
*
|
|
* @param resource $result query result identifier
|
|
* @param array $arr (reference) array where data from the row
|
|
* should be placed
|
|
* @param int $fetchmode how the resulting array should be indexed
|
|
* @param int $rownum the row number to fetch
|
|
*
|
|
* @return mixed DB_OK on success, null when end of result set is
|
|
* reached or on failure
|
|
*
|
|
* @see DB_result::fetchInto()
|
|
* @access private
|
|
*/
|
|
function fetchInto($result, &$arr, $fetchmode, $rownum=null)
|
|
{
|
|
if ($rownum !== null) {
|
|
if (!@mysqli_data_seek($result, $rownum)) {
|
|
return null;
|
|
}
|
|
}
|
|
if ($fetchmode & DB_FETCHMODE_ASSOC) {
|
|
$arr = @mysqli_fetch_array($result, MYSQLI_ASSOC);
|
|
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE && $arr) {
|
|
$arr = array_change_key_case($arr, CASE_LOWER);
|
|
}
|
|
} else {
|
|
$arr = @mysqli_fetch_row($result);
|
|
}
|
|
if (!$arr) {
|
|
$errno = @mysqli_errno($this->connection);
|
|
if (!$errno) {
|
|
return null;
|
|
}
|
|
return $this->mysqlRaiseError($errno);
|
|
}
|
|
if ($this->options['portability'] & DB_PORTABILITY_RTRIM) {
|
|
/*
|
|
* Even though this DBMS already trims output, we do this because
|
|
* a field might have intentional whitespace at the end that
|
|
* gets removed by DB_PORTABILITY_RTRIM under another driver.
|
|
*/
|
|
$this->_rtrimArrayValues($arr);
|
|
}
|
|
if ($this->options['portability'] & DB_PORTABILITY_NULL_TO_EMPTY) {
|
|
$this->_convertNullArrayValuesToEmpty($arr);
|
|
}
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ freeResult()
|
|
|
|
/**
|
|
* Free the internal resources associated with $result.
|
|
*
|
|
* @param resource $result MySQL result identifier
|
|
* @return bool true on success, false if $result is invalid
|
|
* @access public
|
|
*/
|
|
function freeResult($result)
|
|
{
|
|
# need to come up with different means for next line
|
|
# since $result is object (int)$result won't fly...
|
|
// unset($this->num_rows[(int)$result]);
|
|
|
|
//for compatibility the method must return a boolean.
|
|
if (is_resource($result)) {
|
|
@mysqli_free_result($result);
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ numCols()
|
|
|
|
/**
|
|
* Get the number of columns in a result set.
|
|
*
|
|
* @param $result MySQL result identifier
|
|
*
|
|
* @access public
|
|
*
|
|
* @return int the number of columns per row in $result
|
|
*/
|
|
function numCols($result)
|
|
{
|
|
$cols = @mysqli_num_fields($result);
|
|
|
|
if (!$cols) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
|
|
return $cols;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ numRows()
|
|
|
|
/**
|
|
* Get the number of rows in a result set.
|
|
*
|
|
* @param resource $result MySQL result identifier
|
|
* @return int the number of rows in $result
|
|
* @access public
|
|
*/
|
|
function numRows($result)
|
|
{
|
|
$rows = @mysqli_num_rows($result);
|
|
if ($rows === null) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
return $rows;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ autoCommit()
|
|
|
|
/**
|
|
* Enable/disable automatic commits.
|
|
*/
|
|
function autoCommit($onoff = false)
|
|
{
|
|
// XXX if $this->transaction_opcount > 0, we should probably
|
|
// issue a warning here.
|
|
$this->autocommit = $onoff ? true : false;
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ commit()
|
|
|
|
/**
|
|
* Commit the current transaction.
|
|
*/
|
|
function commit()
|
|
{
|
|
if ($this->transaction_opcount > 0) {
|
|
if ($this->_db) {
|
|
if (!@mysqli_select_db($this->connection, $this->_db)) {
|
|
return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
}
|
|
}
|
|
$result = @mysqli_query($this->connection, 'COMMIT');
|
|
$result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
|
|
$this->transaction_opcount = 0;
|
|
if (!$result) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
}
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ rollback()
|
|
|
|
/**
|
|
* Roll back (undo) the current transaction.
|
|
*/
|
|
function rollback()
|
|
{
|
|
if ($this->transaction_opcount > 0) {
|
|
if ($this->_db) {
|
|
if (!@mysqli_select_db($this->connection, $this->_db)) {
|
|
return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
}
|
|
}
|
|
$result = @mysqli_query($this->connection, 'ROLLBACK');
|
|
$result = @mysqli_query($this->connection, 'SET AUTOCOMMIT=1');
|
|
$this->transaction_opcount = 0;
|
|
if (!$result) {
|
|
return $this->mysqlRaiseError();
|
|
}
|
|
}
|
|
return DB_OK;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ affectedRows()
|
|
|
|
/**
|
|
* Gets the number of rows affected by the data manipulation
|
|
* query. For other queries, this function returns 0.
|
|
*
|
|
* @return integer number of rows affected by the last query
|
|
*/
|
|
function affectedRows()
|
|
{
|
|
if (DB::isManip($this->last_query)) {
|
|
return @mysqli_affected_rows($this->connection);
|
|
} else {
|
|
return 0;
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ errorNative()
|
|
|
|
/**
|
|
* Get the native error code of the last error (if any) that
|
|
* occured on the current connection.
|
|
*
|
|
* @return int native MySQL error code
|
|
* @access public
|
|
*/
|
|
function errorNative()
|
|
{
|
|
return @mysqli_errno($this->connection);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ nextId()
|
|
|
|
/**
|
|
* Returns the next free id in a sequence
|
|
*
|
|
* @param string $seq_name name of the sequence
|
|
* @param boolean $ondemand when true, the seqence is automatically
|
|
* created if it does not exist
|
|
*
|
|
* @return int the next id number in the sequence. DB_Error if problem.
|
|
*
|
|
* @internal
|
|
* @see DB_common::nextID()
|
|
* @access public
|
|
*/
|
|
function nextId($seq_name, $ondemand = true)
|
|
{
|
|
$seqname = $this->getSequenceName($seq_name);
|
|
do {
|
|
$repeat = 0;
|
|
$this->pushErrorHandling(PEAR_ERROR_RETURN);
|
|
$result = $this->query("UPDATE ${seqname} ".
|
|
'SET id=LAST_INSERT_ID(id+1)');
|
|
$this->popErrorHandling();
|
|
if ($result === DB_OK) {
|
|
/** COMMON CASE **/
|
|
$id = @mysqli_insert_id($this->connection);
|
|
if ($id != 0) {
|
|
return $id;
|
|
}
|
|
/** EMPTY SEQ TABLE **/
|
|
// Sequence table must be empty for some reason, so fill it and return 1
|
|
// Obtain a user-level lock
|
|
$result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
|
|
if (DB::isError($result)) {
|
|
return $this->raiseError($result);
|
|
}
|
|
if ($result == 0) {
|
|
// Failed to get the lock, bail with a DB_ERROR_NOT_LOCKED error
|
|
return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
|
|
}
|
|
|
|
// add the default value
|
|
$result = $this->query("REPLACE INTO ${seqname} (id) VALUES (0)");
|
|
if (DB::isError($result)) {
|
|
return $this->raiseError($result);
|
|
}
|
|
|
|
// Release the lock
|
|
$result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
|
|
if (DB::isError($result)) {
|
|
return $this->raiseError($result);
|
|
}
|
|
// We know what the result will be, so no need to try again
|
|
return 1;
|
|
|
|
/** ONDEMAND TABLE CREATION **/
|
|
} elseif ($ondemand && DB::isError($result) &&
|
|
$result->getCode() == DB_ERROR_NOSUCHTABLE)
|
|
{
|
|
$result = $this->createSequence($seq_name);
|
|
// Since createSequence initializes the ID to be 1,
|
|
// we do not need to retrieve the ID again (or we will get 2)
|
|
if (DB::isError($result)) {
|
|
return $this->raiseError($result);
|
|
} else {
|
|
// First ID of a newly created sequence is 1
|
|
return 1;
|
|
}
|
|
|
|
/** BACKWARDS COMPAT **/
|
|
} elseif (DB::isError($result) &&
|
|
$result->getCode() == DB_ERROR_ALREADY_EXISTS)
|
|
{
|
|
// see _BCsequence() comment
|
|
$result = $this->_BCsequence($seqname);
|
|
if (DB::isError($result)) {
|
|
return $this->raiseError($result);
|
|
}
|
|
$repeat = 1;
|
|
}
|
|
} while ($repeat);
|
|
|
|
return $this->raiseError($result);
|
|
}
|
|
|
|
/**
|
|
* Creates a new sequence
|
|
*
|
|
* @param string $seq_name name of the new sequence
|
|
*
|
|
* @return int DB_OK on success. A DB_Error object is returned if
|
|
* problems arise.
|
|
*
|
|
* @internal
|
|
* @see DB_common::createSequence()
|
|
* @access public
|
|
*/
|
|
function createSequence($seq_name)
|
|
{
|
|
$seqname = $this->getSequenceName($seq_name);
|
|
$res = $this->query("CREATE TABLE ${seqname} ".
|
|
'(id INTEGER UNSIGNED AUTO_INCREMENT NOT NULL,'.
|
|
' PRIMARY KEY(id))');
|
|
if (DB::isError($res)) {
|
|
return $res;
|
|
}
|
|
// insert yields value 1, nextId call will generate ID 2
|
|
return $this->query("INSERT INTO ${seqname} (id) VALUES (0)");
|
|
}
|
|
|
|
// }}}
|
|
// {{{ dropSequence()
|
|
|
|
/**
|
|
* Deletes a sequence
|
|
*
|
|
* @param string $seq_name name of the sequence to be deleted
|
|
*
|
|
* @return int DB_OK on success. DB_Error if problems.
|
|
*
|
|
* @internal
|
|
* @see DB_common::dropSequence()
|
|
* @access public
|
|
*/
|
|
function dropSequence($seq_name)
|
|
{
|
|
return $this->query('DROP TABLE ' . $this->getSequenceName($seq_name));
|
|
}
|
|
|
|
// }}}
|
|
// {{{ _BCsequence()
|
|
|
|
/**
|
|
* Backwards compatibility with old sequence emulation implementation
|
|
* (clean up the dupes).
|
|
*
|
|
* @param string $seqname The sequence name to clean up
|
|
* @return mixed DB_Error or true
|
|
*/
|
|
function _BCsequence($seqname)
|
|
{
|
|
// Obtain a user-level lock... this will release any previous
|
|
// application locks, but unlike LOCK TABLES, it does not abort
|
|
// the current transaction and is much less frequently used.
|
|
$result = $this->getOne("SELECT GET_LOCK('${seqname}_lock',10)");
|
|
if (DB::isError($result)) {
|
|
return $result;
|
|
}
|
|
if ($result == 0) {
|
|
// Failed to get the lock, can't do the conversion, bail
|
|
// with a DB_ERROR_NOT_LOCKED error
|
|
return $this->mysqlRaiseError(DB_ERROR_NOT_LOCKED);
|
|
}
|
|
|
|
$highest_id = $this->getOne("SELECT MAX(id) FROM ${seqname}");
|
|
if (DB::isError($highest_id)) {
|
|
return $highest_id;
|
|
}
|
|
// This should kill all rows except the highest
|
|
// We should probably do something if $highest_id isn't
|
|
// numeric, but I'm at a loss as how to handle that...
|
|
$result = $this->query("DELETE FROM ${seqname} WHERE id <> $highest_id");
|
|
if (DB::isError($result)) {
|
|
return $result;
|
|
}
|
|
|
|
// If another thread has been waiting for this lock,
|
|
// it will go thru the above procedure, but will have no
|
|
// real effect
|
|
$result = $this->getOne("SELECT RELEASE_LOCK('${seqname}_lock')");
|
|
if (DB::isError($result)) {
|
|
return $result;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ 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 $str identifier name to be quoted
|
|
*
|
|
* @return string quoted identifier string
|
|
*
|
|
* @since 1.6.0
|
|
* @access public
|
|
* @internal
|
|
*/
|
|
function quoteIdentifier($str)
|
|
{
|
|
return '`' . $str . '`';
|
|
}
|
|
|
|
// }}}
|
|
// {{{ escapeSimple()
|
|
|
|
/**
|
|
* Escape a string according to the current DBMS's standards
|
|
*
|
|
* @param string $str the string to be escaped
|
|
*
|
|
* @return string the escaped string
|
|
*
|
|
* @internal
|
|
*/
|
|
function escapeSimple($str) {
|
|
return @mysqli_real_escape_string($this->connection, $str);
|
|
}
|
|
|
|
// }}}
|
|
// {{{ modifyQuery()
|
|
|
|
function modifyQuery($query)
|
|
{
|
|
return $query;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ modifyLimitQuery()
|
|
|
|
function modifyLimitQuery($query, $from, $count, $params = array())
|
|
{
|
|
if (DB::isManip($query)) {
|
|
return $query . " LIMIT $count";
|
|
} else {
|
|
return $query . " LIMIT $from, $count";
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
// {{{ mysqlRaiseError()
|
|
|
|
/**
|
|
* Gather information about an error, then use that info to create a
|
|
* DB error object and finally return that object.
|
|
*
|
|
* @param integer $errno PEAR error number (usually a DB constant) if
|
|
* manually raising an error
|
|
* @return object DB error object
|
|
* @see DB_common::errorCode()
|
|
* @see DB_common::raiseError()
|
|
*/
|
|
function mysqlRaiseError($errno = null)
|
|
{
|
|
if ($errno === null) {
|
|
if ($this->options['portability'] & DB_PORTABILITY_ERRORS) {
|
|
$this->errorcode_map[1022] = DB_ERROR_CONSTRAINT;
|
|
$this->errorcode_map[1048] = DB_ERROR_CONSTRAINT_NOT_NULL;
|
|
$this->errorcode_map[1062] = DB_ERROR_CONSTRAINT;
|
|
} else {
|
|
// Doing this in case mode changes during runtime.
|
|
$this->errorcode_map[1022] = DB_ERROR_ALREADY_EXISTS;
|
|
$this->errorcode_map[1048] = DB_ERROR_CONSTRAINT;
|
|
$this->errorcode_map[1062] = DB_ERROR_ALREADY_EXISTS;
|
|
}
|
|
$errno = $this->errorCode(mysqli_errno($this->connection));
|
|
}
|
|
return $this->raiseError($errno, null, null, null,
|
|
@mysqli_errno($this->connection) . ' ** ' .
|
|
@mysqli_error($this->connection));
|
|
}
|
|
|
|
// }}}
|
|
// {{{ tableInfo()
|
|
|
|
/**
|
|
* Returns information about a table or a result set.
|
|
*
|
|
* WARNING: this method will probably not work because the mysqli_*()
|
|
* functions it relies upon may not exist.
|
|
*
|
|
* @param object|string $result DB_result object from a query or a
|
|
* string containing the name of a table
|
|
* @param int $mode a valid tableInfo mode
|
|
* @return array an associative array with the information requested
|
|
* or an error object if something is wrong
|
|
* @access public
|
|
* @internal
|
|
* @see DB_common::tableInfo()
|
|
*/
|
|
function tableInfo($result, $mode = null) {
|
|
if (isset($result->result)) {
|
|
/*
|
|
* Probably received a result object.
|
|
* Extract the result resource identifier.
|
|
*/
|
|
$id = $result->result;
|
|
$got_string = false;
|
|
} elseif (is_string($result)) {
|
|
/*
|
|
* Probably received a table name.
|
|
* Create a result resource identifier.
|
|
*/
|
|
$id = @mysqli_query($this->connection,
|
|
"SELECT * FROM $result LIMIT 0");
|
|
$got_string = true;
|
|
} else {
|
|
/*
|
|
* Probably received a result resource identifier.
|
|
* Copy it.
|
|
* Deprecated. Here for compatibility only.
|
|
*/
|
|
$id = $result;
|
|
$got_string = false;
|
|
}
|
|
|
|
if (!is_a($id, 'mysqli_result')) {
|
|
return $this->mysqlRaiseError(DB_ERROR_NEED_MORE_DATA);
|
|
}
|
|
|
|
if ($this->options['portability'] & DB_PORTABILITY_LOWERCASE) {
|
|
$case_func = 'strtolower';
|
|
} else {
|
|
$case_func = 'strval';
|
|
}
|
|
|
|
$count = @mysqli_num_fields($id);
|
|
|
|
// made this IF due to performance (one if is faster than $count if's)
|
|
if (!$mode) {
|
|
for ($i=0; $i<$count; $i++) {
|
|
$tmp = @mysqli_fetch_field($id);
|
|
$res[$i]['table'] = $case_func($tmp->table);
|
|
$res[$i]['name'] = $case_func($tmp->name);
|
|
$res[$i]['type'] = isset($this->mysqli_types[$tmp->type]) ?
|
|
$this->mysqli_types[$tmp->type] :
|
|
'unknown';
|
|
$res[$i]['len'] = $tmp->max_length;
|
|
|
|
$res[$i]['flags'] = '';
|
|
foreach ($this->mysqli_flags as $const => $means) {
|
|
if ($tmp->flags & $const) {
|
|
$res[$i]['flags'] .= $means . ' ';
|
|
}
|
|
}
|
|
if ($tmp->def) {
|
|
$res[$i]['flags'] .= 'default_' . rawurlencode($tmp->def);
|
|
}
|
|
$res[$i]['flags'] = trim($res[$i]['flags']);
|
|
}
|
|
} else { // full
|
|
$res['num_fields']= $count;
|
|
|
|
for ($i=0; $i<$count; $i++) {
|
|
$tmp = @mysqli_fetch_field($id);
|
|
$res[$i]['table'] = $case_func($tmp->table);
|
|
$res[$i]['name'] = $case_func($tmp->name);
|
|
$res[$i]['type'] = isset($this->mysqli_types[$tmp->type]) ?
|
|
$this->mysqli_types[$tmp->type] :
|
|
'unknown';
|
|
$res[$i]['len'] = $tmp->max_length;
|
|
|
|
$res[$i]['flags'] = '';
|
|
foreach ($this->mysqli_flags as $const => $means) {
|
|
if ($tmp->flags & $const) {
|
|
$res[$i]['flags'] .= $means . ' ';
|
|
}
|
|
}
|
|
if ($tmp->def) {
|
|
$res[$i]['flags'] .= 'default_' . rawurlencode($tmp->def);
|
|
}
|
|
$res[$i]['flags'] = trim($res[$i]['flags']);
|
|
|
|
if ($mode & DB_TABLEINFO_ORDER) {
|
|
$res['order'][$res[$i]['name']] = $i;
|
|
}
|
|
if ($mode & DB_TABLEINFO_ORDERTABLE) {
|
|
$res['ordertable'][$res[$i]['table']][$res[$i]['name']] = $i;
|
|
}
|
|
}
|
|
}
|
|
|
|
// free the result only if we were called on a table
|
|
if ($got_string) {
|
|
if (is_resource($id)) {
|
|
@mysqli_free_result($id);
|
|
}
|
|
}
|
|
return $res;
|
|
}
|
|
|
|
// }}}
|
|
// {{{ getSpecialQuery()
|
|
|
|
/**
|
|
* Returns the query needed to get some backend info.
|
|
*
|
|
* @param string $type What kind of info you want to retrieve
|
|
* @return string The SQL query string
|
|
*/
|
|
function getSpecialQuery($type)
|
|
{
|
|
switch ($type) {
|
|
case 'tables':
|
|
return 'SHOW TABLES';
|
|
case 'views':
|
|
return DB_ERROR_NOT_CAPABLE;
|
|
case 'users':
|
|
$sql = 'select distinct User from user';
|
|
if ($this->dsn['database'] != 'mysql') {
|
|
$dsn = $this->dsn;
|
|
$dsn['database'] = 'mysql';
|
|
if (DB::isError($db = DB::connect($dsn))) {
|
|
return $db;
|
|
}
|
|
$sql = $db->getCol($sql);
|
|
$db->disconnect();
|
|
// XXX Fixme the mysql driver should take care of this
|
|
if (!@mysqli_select_db($this->connection, $this->dsn['database'])) {
|
|
return $this->mysqlRaiseError(DB_ERROR_NODBSELECTED);
|
|
}
|
|
}
|
|
return $sql;
|
|
case 'databases':
|
|
return 'SHOW DATABASES';
|
|
default:
|
|
return null;
|
|
}
|
|
}
|
|
|
|
// }}}
|
|
|
|
}
|
|
|
|
/*
|
|
* Local variables:
|
|
* tab-width: 4
|
|
* c-basic-offset: 4
|
|
* End:
|
|
*/
|
|
|
|
?>
|