<?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 { /** * @override */ public function getSql(SqlWalker $sqlWalker) { switch (strtolower($this->unit->value)) { case 'hour': return $sqlWalker->getConnection()->getDatabasePlatform()->getDateSubHourExpression( $this->firstDateExpression->dispatch($sqlWalker), $this->intervalExpression->dispatch($sqlWalker) ); 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 hour, day and month.' ); } } }