<?php /* * $Id$ * * 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 LGPL. For more information, see * <http://www.doctrine-project.org>. */ namespace Doctrine\ORM\Query\Expr; /** * Expression class for DQL math statements * * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @link www.doctrine-project.org * @since 2.0 * @version $Revision$ * @author Guilherme Blanco <guilhermeblanco@hotmail.com> * @author Jonathan Wage <jonwage@gmail.com> * @author Roman Borschel <roman@code-factory.org> */ class Math { private $_leftExpr; private $_operator; private $_rightExpr; public function __construct($leftExpr, $operator, $rightExpr) { $this->_leftExpr = $leftExpr; $this->_operator = $operator; $this->_rightExpr = $rightExpr; } 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; } }