846 lines
23 KiB
PHP
846 lines
23 KiB
PHP
<?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;
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use Doctrine\ORM\Query\Expr,
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Doctrine\Common\DoctrineException;
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/**
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* This class is responsible for building DQL query strings via an object oriented
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* PHP interface.
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*
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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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*/
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class QueryBuilder
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{
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const SELECT = 0;
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const DELETE = 1;
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const UPDATE = 2;
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const STATE_DIRTY = 0;
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const STATE_CLEAN = 1;
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/**
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* @var EntityManager $em Instance of an EntityManager to use for query.
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*/
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private $_em;
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/**
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* @var array $dqlParts The array of DQL parts collected.
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*/
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private $_dqlParts = array(
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'select' => array(),
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'from' => array(),
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'join' => array(),
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'set' => array(),
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'where' => null,
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'groupBy' => array(),
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'having' => null,
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'orderBy' => array()
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);
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/**
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* @var integer The type of query this is. Can be select, update or delete.
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*/
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private $_type = self::SELECT;
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/**
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* @var integer The state of the query object. Can be dirty or clean.
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*/
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private $_state = self::STATE_CLEAN;
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/**
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* @var string The complete DQL string for this query.
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*/
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private $_dql;
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/**
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* @var Query The Query instance used for this QueryBuilder.
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*/
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private $_q;
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/**
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* @var Expr The Expr instance used to generate DQL expressions
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*/
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private $_expr;
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/**
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* Initializes a new <tt>QueryBuilder</tt> that uses the given <tt>EntityManager</tt>.
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*
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* @param EntityManager $entityManager The EntityManager to use.
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*/
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public function __construct(EntityManager $entityManager)
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{
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$this->_em = $entityManager;
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$this->_q = $entityManager->createQuery();
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}
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/**
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* Factory for instantiating and retrieving the Expr instance when needed
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->where($qb->expr()->eq('u.id', 1));
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*
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* @return Expr $expr
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*/
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public function expr()
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{
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if ( ! $this->_expr) {
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$this->_expr = new Expr;
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}
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return $this->_expr;
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}
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/**
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* Get the type of this query instance. Either the constant for SELECT, UPDATE or DELETE
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*
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* [php]
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* switch ($qb->getType())
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* {
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* case QueryBuilder::SELECT:
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* echo 'SELECT';
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* break;
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*
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* case QueryBuilder::DELETE:
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* echo 'DELETE';
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* break;
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*
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* case QueryBuilder::UPDATE:
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* echo 'UPDATE';
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* break;
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* }
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*
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* @return integer $type
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*/
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public function getType()
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{
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return $this->_type;
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}
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/**
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* Get the entity manager instance for this query builder instance
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*
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* [php]
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* $em = $qb->getEntityManager();
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*
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* @return EntityManager $em
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*/
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public function getEntityManager()
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{
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return $this->_em;
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}
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/**
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* Get the state of this query builder instance
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*
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* [php]
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* if ($qb->getState() == QueryBuilder::STATE_DIRTY) {
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* echo 'Query builder is dirty';
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* } else {
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* echo 'Query builder is clean';
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* }
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*
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* @return integer $state
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*/
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public function getState()
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{
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return $this->_state;
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}
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/**
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* Get the complete DQL string for this query builder instance
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* echo $qb->getDql(); // SELECT u FROM User u
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*
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* @return string $dql The DQL string
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*/
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public function getDql()
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{
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if ($this->_dql !== null && $this->_state === self::STATE_CLEAN) {
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return $this->_dql;
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}
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$dql = '';
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switch ($this->_type) {
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case self::DELETE:
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$dql = $this->_getDqlForDelete();
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break;
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case self::UPDATE:
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$dql = $this->_getDqlForUpdate();
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break;
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case self::SELECT:
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default:
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$dql = $this->_getDqlForSelect();
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break;
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}
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$this->_state = self::STATE_CLEAN;
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$this->_dql = $dql;
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return $dql;
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}
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/**
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* Get the Query instance with the DQL string set to it
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u');
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* $q = $qb->getQuery();
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* $results = $q->execute();
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*
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* @return Query $q
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*/
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public function getQuery()
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{
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$this->_q->setDql($this->getDql());
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return $this->_q;
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}
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/**
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* Get the root alias for the query. This is the first entity alias involved
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* in the construction of the query
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u');
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*
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* echo $qb->getRootAlias(); // u
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*
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* @return string $rootAlias
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*/
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public function getRootAlias()
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{
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return $this->_dqlParts['from'][0]->getAlias();
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}
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/**
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* Sets a query parameter.
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->where('u.id = :user_id')
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* ->setParameter(':user_id', 1);
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*
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* @param string|integer $key The parameter position or name.
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* @param mixed $value The parameter value.
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* @return QueryBuilder $qb
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*/
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public function setParameter($key, $value)
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{
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$this->_q->setParameter($key, $value);
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return $this;
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}
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/**
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* Sets a collection of query parameters.
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->where('u.id = :user_id1 OR u.id = :user_id2')
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* ->setParameters(array(
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* ':user_id1' => 1,
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* ':user_id2' => 2
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* ));
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*
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* @param array $params
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* @return QueryBuilder $qb
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*/
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public function setParameters(array $params)
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{
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$this->_q->setParameters($params);
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return $this;
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}
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/**
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* Get all defined parameters
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*
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* @return array Defined parameters
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*/
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public function getParameters($params = array())
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{
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return $this->_q->getParameters($params);
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}
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/**
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* Gets a query parameter.
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*
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* @param mixed $key The key (index or name) of the bound parameter.
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* @return mixed The value of the bound parameter.
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*/
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public function getParameter($key)
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{
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return $this->_q->getParameter($key);
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}
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/**
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* Sets the position of the first result to retrieve (the "offset").
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*
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* @param integer $firstResult The first result to return.
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* @return QueryBuilder This query builder object.
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*/
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public function setFirstResult($firstResult)
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{
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$this->_q->setFirstResult($firstResult);
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return $this;
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}
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/**
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* Gets the position of the first result the query object was set to retrieve (the "offset").
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* Returns NULL if {@link setFirstResult} was not applied to this query builder.
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*
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* @return integer The position of the first result.
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*/
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public function getFirstResult()
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{
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return $this->_q->getFirstResult();
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}
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/**
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* Sets the maximum number of results to retrieve (the "limit").
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*
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* @param integer $maxResults
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* @return QueryBuilder This query builder object.
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*/
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public function setMaxResults($maxResults)
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{
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$this->_q->setMaxResults($maxResults);
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return $this;
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}
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/**
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* Gets the maximum number of results the query object was set to retrieve (the "limit").
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* Returns NULL if {@link setMaxResults} was not applied to this query builder.
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*
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* @return integer Maximum number of results.
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*/
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public function getMaxResults()
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{
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return $this->_q->getMaxResults();
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}
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/**
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* Add a single DQL query part to the array of parts
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*
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* @param string $dqlPartName
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* @param string $dqlPart
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* @param string $append
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* @return QueryBuilder $qb
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*/
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public function add($dqlPartName, $dqlPart, $append = false)
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{
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$isMultiple = is_array($this->_dqlParts[$dqlPartName]);
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if ($append && $isMultiple) {
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$this->_dqlParts[$dqlPartName][] = $dqlPart;
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} else {
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$this->_dqlParts[$dqlPartName] = ($isMultiple) ? array($dqlPart) : $dqlPart;
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}
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$this->_state = self::STATE_DIRTY;
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return $this;
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}
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/**
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* Set the SELECT statement
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u', 'p')
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* ->from('User', 'u')
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* ->leftJoin('u.Phonenumbers', 'p');
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*
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* @param mixed $select String SELECT statement or SELECT Expr instance
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* @return QueryBuilder $qb
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*/
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public function select($select = null)
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{
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$this->_type = self::SELECT;
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if (empty($select)) {
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return $this;
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}
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$selects = is_array($select) ? $select : func_get_args();
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return $this->add('select', new Expr\Select($selects), false);
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}
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/**
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* Add to the SELECT statement
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->addSelect('p')
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* ->from('User', 'u')
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* ->leftJoin('u.Phonenumbers', 'p');
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*
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* @param mixed $select String SELECT statement or SELECT Expr instance
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* @return QueryBuilder $qb
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*/
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public function addSelect($select = null)
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{
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$this->_type = self::SELECT;
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if (empty($select)) {
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return $this;
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}
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$selects = is_array($select) ? $select : func_get_args();
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return $this->add('select', new Expr\Select($selects), true);
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}
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/**
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* Construct a DQL DELETE query
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->delete('User', 'u')
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* ->where('u.id = :user_id');
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* ->setParameter(':user_id', 1);
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*
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* @param string $delete The model to delete
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* @param string $alias The alias of the model
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* @return QueryBuilder $qb
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*/
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public function delete($delete = null, $alias = null)
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{
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$this->_type = self::DELETE;
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if ( ! $delete) {
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return $this;
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}
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return $this->add('from', new Expr\From($delete, $alias));
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}
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/**
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* Construct a DQL UPDATE query
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->update('User', 'u')
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* ->set('u.password', md5('password'))
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* ->where('u.id = ?');
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*
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* @param string $update The model to update
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* @param string $alias The alias of the model
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* @return QueryBuilder $qb
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*/
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public function update($update = null, $alias = null)
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{
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$this->_type = self::UPDATE;
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if ( ! $update) {
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return $this;
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}
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return $this->add('from', new Expr\From($update, $alias));
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}
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/**
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* Specify the FROM part when constructing a SELECT DQL query
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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*
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* @param string $from The model name
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* @param string $alias The alias of the model
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* @return QueryBuilder $qb
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*/
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public function from($from, $alias)
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{
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return $this->add('from', new Expr\From($from, $alias), true);
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}
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/**
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* Add a INNER JOIN
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->innerJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
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*
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* @param string $join The relationship to join
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* @param string $alias The alias of the join
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* @param string $conditionType The condition type constant. Either ON or WITH.
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* @param string $condition The condition for the join
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* @return QueryBuilder $qb
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*/
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public function innerJoin($join, $alias, $conditionType = null, $condition = null)
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{
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return $this->add('join', new Expr\Join(
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Expr\Join::INNER_JOIN, $join, $alias, $conditionType, $condition
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), true);
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}
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/**
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* Add a LEFT JOIN
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->leftJoin('u.Phonenumbers', 'p', Expr\Join::WITH, 'p.is_primary = 1');
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*
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* @param string $join The relationship to join
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* @param string $alias The alias of the join
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* @param string $conditionType The condition type constant. Either ON or WITH.
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* @param string $condition The condition for the join
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* @return QueryBuilder $qb
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*/
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public function leftJoin($join, $alias, $conditionType = null, $condition = null)
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{
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return $this->add('join', new Expr\Join(
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Expr\Join::LEFT_JOIN, $join, $alias, $conditionType, $condition
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), true);
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}
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/**
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* Add a SET statement for a DQL UPDATE query
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->update('User', 'u')
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* ->set('u.password', md5('password'))
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* ->where('u.id = ?');
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*
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* @param string $key The key/field to set
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* @param string $value The value, expression, placeholder, etc. to use in the SET
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* @return QueryBuilder $qb
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*/
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public function set($key, $value)
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{
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return $this->add('set', new Expr\Comparison($key, Expr\Comparison::EQ, $value), true);
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}
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/**
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* Set and override any existing WHERE statements
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*
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* [php]
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* $qb = $em->createQueryBuilder()
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* ->select('u')
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* ->from('User', 'u')
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* ->where('u.id = ?');
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*
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* // You can optionally programatically build and/or expressions
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* $qb = $em->createQueryBuilder();
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*
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* $or = $qb->expr()->orx();
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* $or->add($qb->expr()->eq('u.id', 1));
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* $or->add($qb->expr()->eq('u.id', 2));
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*
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* $qb->update('User', 'u')
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* ->set('u.password', md5('password'))
|
|
* ->where($or);
|
|
*
|
|
* @param mixed $predicates The predicates.
|
|
* @return QueryBuilder
|
|
*/
|
|
public function where($predicates)
|
|
{
|
|
if ( ! (func_num_args() == 1 && ($predicates instanceof Expr\Andx || $predicates instanceof Expr\Orx))) {
|
|
$predicates = new Expr\Andx(func_get_args());
|
|
}
|
|
|
|
return $this->add('where', $predicates);
|
|
}
|
|
|
|
/**
|
|
* Add a new WHERE statement with an AND
|
|
*
|
|
* [php]
|
|
* $qb = $em->createQueryBuilder()
|
|
* ->select('u')
|
|
* ->from('User', 'u')
|
|
* ->where('u.username LIKE ?')
|
|
* ->andWhere('u.is_active = 1');
|
|
*
|
|
* @param mixed $where The WHERE statement
|
|
* @return QueryBuilder $qb
|
|
* @see where()
|
|
*/
|
|
public function andWhere($where)
|
|
{
|
|
$where = $this->getDqlPart('where');
|
|
$args = func_get_args();
|
|
|
|
if ($where instanceof Expr\Andx) {
|
|
$where->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $where);
|
|
$where = new Expr\Andx($args);
|
|
}
|
|
|
|
return $this->add('where', $where, true);
|
|
}
|
|
|
|
/**
|
|
* Add a new WHERE statement with an OR
|
|
*
|
|
* [php]
|
|
* $qb = $em->createQueryBuilder()
|
|
* ->select('u')
|
|
* ->from('User', 'u')
|
|
* ->where('u.id = 1')
|
|
* ->orWhere('u.id = 2');
|
|
*
|
|
* @param mixed $where The WHERE statement
|
|
* @return QueryBuilder $qb
|
|
* @see where()
|
|
*/
|
|
public function orWhere($where)
|
|
{
|
|
$where = $this->getDqlPart('where');
|
|
$args = func_get_args();
|
|
|
|
if ($where instanceof Expr\Orx) {
|
|
$where->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $where);
|
|
$where = new Expr\Orx($args);
|
|
}
|
|
|
|
return $this->add('where', $where, true);
|
|
}
|
|
|
|
/**
|
|
* Set the GROUP BY clause
|
|
*
|
|
* [php]
|
|
* $qb = $em->createQueryBuilder()
|
|
* ->select('u')
|
|
* ->from('User', 'u')
|
|
* ->groupBy('u.id');
|
|
*
|
|
* @param string $groupBy The GROUP BY clause
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function groupBy($groupBy)
|
|
{
|
|
return $this->add('groupBy', new Expr\GroupBy(func_get_args()));
|
|
}
|
|
|
|
|
|
/**
|
|
* Add to the existing GROUP BY clause
|
|
*
|
|
* [php]
|
|
* $qb = $em->createQueryBuilder()
|
|
* ->select('u')
|
|
* ->from('User', 'u')
|
|
* ->groupBy('u.last_login');
|
|
* ->addGroupBy('u.created_at')
|
|
*
|
|
* @param string $groupBy The GROUP BY clause
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function addGroupBy($groupBy)
|
|
{
|
|
return $this->add('groupBy', new Expr\GroupBy(func_get_args()), true);
|
|
}
|
|
|
|
/**
|
|
* Set the HAVING clause
|
|
*
|
|
* @param mixed $having
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function having($having)
|
|
{
|
|
if ( ! (func_num_args() == 1 && ($having instanceof Expr\Andx || $having instanceof Expr\Orx))) {
|
|
$having = new Expr\Andx(func_get_args());
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Add to the existing HAVING clause with an AND
|
|
*
|
|
* @param mixed $having
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function andHaving($having)
|
|
{
|
|
$having = $this->getDqlPart('having');
|
|
$args = func_get_args();
|
|
|
|
if ($having instanceof Expr\Andx) {
|
|
$having->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $having);
|
|
$having = new Expr\Andx($args);
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Add to the existing HAVING clause with an OR
|
|
*
|
|
* @param mixed $having
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function orHaving($having)
|
|
{
|
|
$having = $this->getDqlPart('having');
|
|
$args = func_get_args();
|
|
|
|
if ($having instanceof Expr\Orx) {
|
|
$having->addMultiple($args);
|
|
} else {
|
|
array_unshift($args, $having);
|
|
$having = new Expr\Orx($args);
|
|
}
|
|
|
|
return $this->add('having', $having);
|
|
}
|
|
|
|
/**
|
|
* Set the ORDER BY clause
|
|
*
|
|
* @param string $sort What to sort on
|
|
* @param string $order Optional: The order to sort the results.
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function orderBy($sort, $order = null)
|
|
{
|
|
return $this->add('orderBy', new Expr\OrderBy($sort, $order));
|
|
}
|
|
|
|
/**
|
|
* Add to the existing ORDER BY clause
|
|
*
|
|
* @param string $sort What to sort on
|
|
* @param string $order Optional: The order to sort the results.
|
|
* @return QueryBuilder $qb
|
|
*/
|
|
public function addOrderBy($sort, $order = null)
|
|
{
|
|
return $this->add('orderBy', new Expr\OrderBy($sort, $order), true);
|
|
}
|
|
|
|
/**
|
|
* Get a DQL part or parts by the part name
|
|
*
|
|
* @param string $queryPartName
|
|
* @return mixed $queryPart
|
|
*/
|
|
public function getDqlPart($queryPartName)
|
|
{
|
|
return $this->_dqlParts[$queryPartName];
|
|
}
|
|
|
|
/**
|
|
* Get the full DQL parts array
|
|
*
|
|
* @return array $dqlParts
|
|
*/
|
|
public function getDqlParts()
|
|
{
|
|
return $this->_dqlParts;
|
|
}
|
|
|
|
private function _getDqlForDelete()
|
|
{
|
|
return 'DELETE'
|
|
. $this->_getReducedDqlQueryPart('from', array('pre' => ' ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('where', array('pre' => ' WHERE '))
|
|
. $this->_getReducedDqlQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));
|
|
}
|
|
|
|
private function _getDqlForUpdate()
|
|
{
|
|
return 'UPDATE'
|
|
. $this->_getReducedDqlQueryPart('from', array('pre' => ' ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('set', array('pre' => ' SET ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('where', array('pre' => ' WHERE '))
|
|
. $this->_getReducedDqlQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));
|
|
}
|
|
|
|
private function _getDqlForSelect()
|
|
{
|
|
return 'SELECT'
|
|
. $this->_getReducedDqlQueryPart('select', array('pre' => ' ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('from', array('pre' => ' FROM ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('join', array('pre' => ' ', 'separator' => ' '))
|
|
. $this->_getReducedDqlQueryPart('where', array('pre' => ' WHERE '))
|
|
. $this->_getReducedDqlQueryPart('groupBy', array('pre' => ' GROUP BY ', 'separator' => ', '))
|
|
. $this->_getReducedDqlQueryPart('having', array('pre' => ' HAVING '))
|
|
. $this->_getReducedDqlQueryPart('orderBy', array('pre' => ' ORDER BY ', 'separator' => ', '));
|
|
}
|
|
|
|
private function _getReducedDqlQueryPart($queryPartName, $options = array())
|
|
{
|
|
$queryPart = $this->getDqlPart($queryPartName);
|
|
|
|
if (empty($queryPart)) {
|
|
return (isset($options['empty']) ? $options['empty'] : '');
|
|
}
|
|
|
|
return (isset($options['pre']) ? $options['pre'] : '')
|
|
. (is_array($queryPart) ? implode($options['separator'], $queryPart) : $queryPart)
|
|
. (isset($options['post']) ? $options['post'] : '');
|
|
}
|
|
|
|
public function __toString()
|
|
{
|
|
return $this->getDql();
|
|
}
|
|
|
|
public function __clone()
|
|
{
|
|
$this->_q = clone $this->_q;
|
|
}
|
|
} |