108 lines
2.7 KiB
PHP
108 lines
2.7 KiB
PHP
<?php
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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 MIT license. 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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* Expression class for DQL math statements.
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*
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* @link www.doctrine-project.org
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* @since 2.0
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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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*/
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class Math
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{
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/**
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* @var mixed
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*/
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protected $leftExpr;
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/**
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* @var string
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*/
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protected $operator;
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/**
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* @var mixed
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*/
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protected $rightExpr;
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/**
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* Creates a mathematical expression with the given arguments.
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*
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* @param mixed $leftExpr
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* @param string $operator
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* @param mixed $rightExpr
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*/
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public function __construct($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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/**
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* @return mixed
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*/
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public function getLeftExpr()
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{
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return $this->leftExpr;
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}
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/**
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* @return string
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*/
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public function getOperator()
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{
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return $this->operator;
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}
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/**
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* @return mixed
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*/
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public function getRightExpr()
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{
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return $this->rightExpr;
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}
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/**
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* @return string
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*/
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public function __toString()
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{
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// Adjusting Left Expression
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$leftExpr = (string) $this->leftExpr;
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if ($this->leftExpr instanceof Math) {
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$leftExpr = '(' . $leftExpr . ')';
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}
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// Adjusting Right Expression
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$rightExpr = (string) $this->rightExpr;
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if ($this->rightExpr instanceof Math) {
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$rightExpr = '(' . $rightExpr . ')';
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}
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return $leftExpr . ' ' . $this->operator . ' ' . $rightExpr;
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}
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}
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