<?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\Expr; /** * Expression class for DQL math statements. * * @link www.doctrine-project.org * @since 2.0 * @author Guilherme Blanco <guilhermeblanco@hotmail.com> * @author Jonathan Wage <jonwage@gmail.com> * @author Roman Borschel <roman@code-factory.org> */ class Math { /** * @var mixed */ protected $leftExpr; /** * @var string */ protected $operator; /** * @var mixed */ protected $rightExpr; /** * Creates a mathematical expression with the given arguments. * * @param mixed $leftExpr * @param string $operator * @param mixed $rightExpr */ public function __construct($leftExpr, $operator, $rightExpr) { $this->leftExpr = $leftExpr; $this->operator = $operator; $this->rightExpr = $rightExpr; } /** * @return mixed */ public function getLeftExpr() { return $this->leftExpr; } /** * @return string */ public function getOperator() { return $this->operator; } /** * @return mixed */ public function getRightExpr() { return $this->rightExpr; } /** * @return string */ public function __toString() { // Adjusting Left Expression $leftExpr = (string) $this->leftExpr; if ($this->leftExpr instanceof Math) { $leftExpr = '(' . $leftExpr . ')'; } // Adjusting Right Expression $rightExpr = (string) $this->rightExpr; if ($this->rightExpr instanceof Math) { $rightExpr = '(' . $rightExpr . ')'; } return $leftExpr . ' ' . $this->operator . ' ' . $rightExpr; } }