Source of file CompositeExpression.php
Size: 3,541 Bytes - Last Modified: 2013-05-11T09:45:37+02:00
/home/theseer/Downloads/Symfony/vendor/doctrine/dbal/lib/Doctrine/DBAL/Query/Expression/CompositeExpression.php
123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131 | <?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\DBAL\Query\Expression; /** * Composite expression is responsible to build a group of similar expression. * * @license http://www.opensource.org/licenses/lgpl-license.php LGPL * @link www.doctrine-project.org * @since 2.1 * @author Guilherme Blanco <guilhermeblanco@hotmail.com> * @author Benjamin Eberlei <kontakt@beberlei.de> */ class CompositeExpression implements \Countable { /** * Constant that represents an AND composite expression */ const TYPE_AND = 'AND'; /** * Constant that represents an OR composite expression */ const TYPE_OR = 'OR'; /** * @var string Holds the instance type of composite expression */ private $type; /** * @var array Each expression part of the composite expression */ private $parts = array(); /** * Constructor. * * @param string $type Instance type of composite expression * @param array $parts Composition of expressions to be joined on composite expression */ public function __construct($type, array $parts = array()) { $this->type = $type; $this->addMultiple($parts); } /** * Adds multiple parts to composite expression. * * @param array $parts * * @return CompositeExpression */ public function addMultiple(array $parts = array()) { foreach ((array) $parts as $part) { $this->add($part); } return $this; } /** * Adds an expression to composite expression. * * @param mixed $part * @return CompositeExpression */ public function add($part) { if ( ! empty($part) || ($part instanceof self && $part->count() > 0)) { $this->parts[] = $part; } return $this; } /** * Retrieves the amount of expressions on composite expression. * * @return integer */ public function count() { return count($this->parts); } /** * Retrieve the string representation of this composite expression. * * @return string */ public function __toString() { if (count($this->parts) === 1) { return (string) $this->parts[0]; } return '(' . implode(') ' . $this->type . ' (', $this->parts) . ')'; } /** * Return type of this composite expression (AND/OR) * * @return string */ public function getType() { return $this->type; } } |