2009-07-10 18:02:06 +04:00
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<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.doctrine-project.org>.
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*/
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namespace Doctrine\ORM\Query\Expr;
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/**
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2009-07-10 21:53:48 +04:00
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* Expression class for DQL math statements
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2009-07-10 18:02:06 +04:00
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*
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2009-09-06 00:05:39 +04:00
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
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* @since 2.0
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* @version $Revision$
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* @author Guilherme Blanco <guilhermeblanco@hotmail.com>
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* @author Jonathan Wage <jonwage@gmail.com>
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* @author Roman Borschel <roman@code-factory.org>
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2009-07-10 18:02:06 +04:00
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*/
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class Math
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{
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private $_leftExpr;
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private $_operator;
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private $_rightExpr;
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public function __construct($leftExpr, $operator, $rightExpr)
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{
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$this->_leftExpr = $leftExpr;
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$this->_operator = $operator;
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$this->_rightExpr = $rightExpr;
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}
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public function __toString()
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{
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2009-08-15 01:03:27 +04:00
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// Adjusting Left Expression
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$leftExpr = (string) $this->_leftExpr;
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2011-12-20 01:56:19 +04:00
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2009-08-15 01:03:27 +04:00
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if ($this->_leftExpr instanceof Math) {
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$leftExpr = '(' . $leftExpr . ')';
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}
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2011-12-20 01:56:19 +04:00
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2009-08-15 01:03:27 +04:00
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// Adjusting Right Expression
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$rightExpr = (string) $this->_rightExpr;
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2011-12-20 01:56:19 +04:00
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2009-08-15 01:03:27 +04:00
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if ($this->_rightExpr instanceof Math) {
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$rightExpr = '(' . $rightExpr . ')';
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}
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2011-12-20 01:56:19 +04:00
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2009-08-15 01:03:27 +04:00
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return $leftExpr . ' ' . $this->_operator . ' ' . $rightExpr;
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2009-07-10 18:02:06 +04:00
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}
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}
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