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doctrine2/lib/Doctrine/Connection/Mssql.php

139 lines
4.7 KiB
PHP

<?php
/*
* $Id$
*
* 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 COPYRIGHT
* OWNER 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.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
/**
* Doctrine_Connection_Mssql
*
* @package Doctrine
* @subpackage Connection
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
* @author Lukas Smith <smith@pooteeweet.org> (PEAR MDB2 library)
* @version $Revision$
* @link www.phpdoctrine.org
* @since 1.0
*/
class Doctrine_Connection_Mssql extends Doctrine_Connection
{
/**
* @var string $driverName the name of this connection driver
*/
protected $driverName = 'Mssql';
/**
* the constructor
*
* @param Doctrine_Manager $manager
* @param PDO $pdo database handle
*/
public function __construct(array $params)
{
parent::__construct($params);
}
/**
* Quote a string so it can be safely used as a table / column name
*
* Quoting style depends on which database driver is being used.
*
* @param string $identifier identifier name to be quoted
* @param bool $checkOption check the 'quote_identifier' option
*
* @return string quoted identifier string
*/
public function quoteIdentifier($identifier, $checkOption = false)
{
if ($checkOption && ! $this->getAttribute(Doctrine::ATTR_QUOTE_IDENTIFIER)) {
return $identifier;
}
if (strpos($identifier, '.') !== false) {
$parts = explode('.', $identifier);
$quotedParts = array();
foreach ($parts as $p) {
$quotedParts[] = $this->quoteIdentifier($p);
}
return implode('.', $quotedParts);
}
return '[' . str_replace(']', ']]', $identifier) . ']';
}
/**
* return version information about the server
*
* @param bool $native determines if the raw version string should be returned
* @return mixed array/string with version information or MDB2 error object
*/
public function getServerVersion($native = false)
{
if ($this->serverInfo) {
$serverInfo = $this->serverInfo;
} else {
$query = 'SELECT @@VERSION';
$serverInfo = $this->fetchOne($query);
}
// cache server_info
$this->serverInfo = $serverInfo;
if ( ! $native) {
if (preg_match('/([0-9]+)\.([0-9]+)\.([0-9]+)/', $serverInfo, $tmp)) {
$serverInfo = array(
'major' => $tmp[1],
'minor' => $tmp[2],
'patch' => $tmp[3],
'extra' => null,
'native' => $serverInfo,
);
} else {
$serverInfo = array(
'major' => null,
'minor' => null,
'patch' => null,
'extra' => null,
'native' => $serverInfo,
);
}
}
return $serverInfo;
}
/**
* Checks if there's a sequence that exists.
*
* @param string $seq_name The sequence name to verify.
* @return boolean The value if the table exists or not
*/
public function checkSequence($seqName)
{
$query = 'SELECT * FROM ' . $seqName;
try {
$this->exec($query);
} catch(Doctrine_Connection_Exception $e) {
if ($e->getPortableCode() == Doctrine::ERR_NOSUCHTABLE) {
return false;
}
throw $e;
}
return true;
}
}