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doctrine2/lib/Doctrine/ORM/Query/AST/Functions/DateSubFunction.php
2012-06-05 15:39:52 +02:00

58 lines
2.2 KiB
PHP

<?php
/*
* 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 MIT license. For more information, see
* <http://www.doctrine-project.org>.
*/
namespace Doctrine\ORM\Query\AST\Functions;
use Doctrine\ORM\Query\SqlWalker;
use Doctrine\ORM\Query\QueryException;
/**
* "DATE_ADD(date1, interval, unit)"
*
*
* @link www.doctrine-project.org
* @since 2.0
* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
* @author Benjamin Eberlei <kontakt@beberlei.de>
*/
class DateSubFunction extends DateAddFunction
{
public function getSql(SqlWalker $sqlWalker)
{
switch (strtolower($this->unit->value)) {
case 'day':
return $sqlWalker->getConnection()->getDatabasePlatform()->getDateSubDaysExpression(
$this->firstDateExpression->dispatch($sqlWalker),
$this->intervalExpression->dispatch($sqlWalker)
);
case 'month':
return $sqlWalker->getConnection()->getDatabasePlatform()->getDateSubMonthExpression(
$this->firstDateExpression->dispatch($sqlWalker),
$this->intervalExpression->dispatch($sqlWalker)
);
default:
throw QueryException::semanticalError(
'DATE_SUB() only supports units of type day and month.'
);
}
}
}