835 lines
24 KiB
PHP
835 lines
24 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 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 Closure, Exception,
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Doctrine\Common\EventManager,
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Doctrine\Common\Persistence\ObjectManager,
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Doctrine\DBAL\Connection,
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Doctrine\DBAL\LockMode,
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Doctrine\ORM\Mapping\ClassMetadata,
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Doctrine\ORM\Mapping\ClassMetadataFactory,
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Doctrine\ORM\Query\ResultSetMapping,
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Doctrine\ORM\Proxy\ProxyFactory,
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Doctrine\ORM\Query\FilterCollection;
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/**
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* The EntityManager is the central access point to ORM functionality.
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*
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* @since 2.0
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* @author Benjamin Eberlei <kontakt@beberlei.de>
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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 EntityManager implements ObjectManager
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{
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/**
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* The used Configuration.
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*
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* @var \Doctrine\ORM\Configuration
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*/
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private $config;
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/**
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* The database connection used by the EntityManager.
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*
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* @var \Doctrine\DBAL\Connection
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*/
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private $conn;
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/**
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* The metadata factory, used to retrieve the ORM metadata of entity classes.
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*
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* @var \Doctrine\ORM\Mapping\ClassMetadataFactory
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*/
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private $metadataFactory;
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/**
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* The EntityRepository instances.
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*
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* @var array
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*/
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private $repositories = array();
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/**
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* The UnitOfWork used to coordinate object-level transactions.
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*
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* @var \Doctrine\ORM\UnitOfWork
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*/
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private $unitOfWork;
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/**
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* The event manager that is the central point of the event system.
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*
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* @var \Doctrine\Common\EventManager
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*/
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private $eventManager;
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/**
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* The maintained (cached) hydrators. One instance per type.
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*
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* @var array
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*/
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private $hydrators = array();
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/**
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* The proxy factory used to create dynamic proxies.
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*
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* @var \Doctrine\ORM\Proxy\ProxyFactory
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*/
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private $proxyFactory;
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/**
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* The expression builder instance used to generate query expressions.
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*
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* @var \Doctrine\ORM\Query\Expr
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*/
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private $expressionBuilder;
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/**
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* Whether the EntityManager is closed or not.
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*
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* @var bool
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*/
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private $closed = false;
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/**
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* Collection of query filters.
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*
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* @var Doctrine\ORM\Query\FilterCollection
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*/
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private $filterCollection;
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/**
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* Creates a new EntityManager that operates on the given database connection
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* and uses the given Configuration and EventManager implementations.
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*
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* @param \Doctrine\DBAL\Connection $conn
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* @param \Doctrine\ORM\Configuration $config
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* @param \Doctrine\Common\EventManager $eventManager
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*/
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protected function __construct(Connection $conn, Configuration $config, EventManager $eventManager)
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{
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$this->conn = $conn;
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$this->config = $config;
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$this->eventManager = $eventManager;
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$metadataFactoryClassName = $config->getClassMetadataFactoryName();
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$this->metadataFactory = new $metadataFactoryClassName;
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$this->metadataFactory->setEntityManager($this);
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$this->metadataFactory->setCacheDriver($this->config->getMetadataCacheImpl());
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$this->unitOfWork = new UnitOfWork($this);
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$this->proxyFactory = new ProxyFactory(
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$this,
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$config->getProxyDir(),
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$config->getProxyNamespace(),
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$config->getAutoGenerateProxyClasses()
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);
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}
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/**
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* Gets the database connection object used by the EntityManager.
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*
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* @return \Doctrine\DBAL\Connection
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*/
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public function getConnection()
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{
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return $this->conn;
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}
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/**
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* Gets the metadata factory used to gather the metadata of classes.
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*
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* @return \Doctrine\ORM\Mapping\ClassMetadataFactory
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*/
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public function getMetadataFactory()
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{
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return $this->metadataFactory;
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}
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/**
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* Gets an ExpressionBuilder used for object-oriented construction of query expressions.
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*
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* Example:
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*
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* <code>
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* $qb = $em->createQueryBuilder();
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* $expr = $em->getExpressionBuilder();
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* $qb->select('u')->from('User', 'u')
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* ->where($expr->orX($expr->eq('u.id', 1), $expr->eq('u.id', 2)));
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* </code>
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*
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* @return \Doctrine\ORM\Query\Expr
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*/
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public function getExpressionBuilder()
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{
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if ($this->expressionBuilder === null) {
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$this->expressionBuilder = new Query\Expr;
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}
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return $this->expressionBuilder;
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}
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/**
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* Starts a transaction on the underlying database connection.
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*
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* @deprecated Use {@link getConnection}.beginTransaction().
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*/
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public function beginTransaction()
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{
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$this->conn->beginTransaction();
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}
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/**
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* Executes a function in a transaction.
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*
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* The function gets passed this EntityManager instance as an (optional) parameter.
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*
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* {@link flush} is invoked prior to transaction commit.
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*
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* If an exception occurs during execution of the function or flushing or transaction commit,
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* the transaction is rolled back, the EntityManager closed and the exception re-thrown.
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*
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* @param Closure $func The function to execute transactionally.
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* @return mixed Returns the non-empty value returned from the closure or true instead
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*/
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public function transactional(Closure $func)
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{
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$this->conn->beginTransaction();
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try {
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$return = $func($this);
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$this->flush();
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$this->conn->commit();
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return $return ?: true;
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} catch (Exception $e) {
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$this->close();
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$this->conn->rollback();
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throw $e;
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}
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}
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/**
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* Commits a transaction on the underlying database connection.
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*
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* @deprecated Use {@link getConnection}.commit().
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*/
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public function commit()
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{
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$this->conn->commit();
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}
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/**
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* Performs a rollback on the underlying database connection.
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*
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* @deprecated Use {@link getConnection}.rollback().
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*/
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public function rollback()
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{
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$this->conn->rollback();
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}
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/**
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* Returns the ORM metadata descriptor for a class.
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*
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* The class name must be the fully-qualified class name without a leading backslash
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* (as it is returned by get_class($obj)) or an aliased class name.
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*
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* Examples:
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* MyProject\Domain\User
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* sales:PriceRequest
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*
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* @return \Doctrine\ORM\Mapping\ClassMetadata
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* @internal Performance-sensitive method.
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*/
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public function getClassMetadata($className)
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{
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return $this->metadataFactory->getMetadataFor($className);
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}
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/**
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* Creates a new Query object.
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*
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* @param string The DQL string.
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* @return \Doctrine\ORM\Query
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*/
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public function createQuery($dql = "")
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{
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$query = new Query($this);
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if ( ! empty($dql)) {
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$query->setDql($dql);
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}
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return $query;
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}
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/**
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* Creates a Query from a named query.
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*
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* @param string $name
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* @return \Doctrine\ORM\Query
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*/
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public function createNamedQuery($name)
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{
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return $this->createQuery($this->config->getNamedQuery($name));
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}
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/**
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* Creates a native SQL query.
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*
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* @param string $sql
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* @param ResultSetMapping $rsm The ResultSetMapping to use.
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* @return NativeQuery
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*/
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public function createNativeQuery($sql, ResultSetMapping $rsm)
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{
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$query = new NativeQuery($this);
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$query->setSql($sql);
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$query->setResultSetMapping($rsm);
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return $query;
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}
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/**
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* Creates a NativeQuery from a named native query.
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*
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* @param string $name
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* @return \Doctrine\ORM\NativeQuery
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*/
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public function createNamedNativeQuery($name)
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{
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list($sql, $rsm) = $this->config->getNamedNativeQuery($name);
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return $this->createNativeQuery($sql, $rsm);
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}
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/**
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* Create a QueryBuilder instance
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*
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* @return QueryBuilder $qb
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*/
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public function createQueryBuilder()
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{
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return new QueryBuilder($this);
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}
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/**
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* Flushes all changes to objects that have been queued up to now to the database.
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* This effectively synchronizes the in-memory state of managed objects with the
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* database.
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*
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* If an entity is explicitly passed to this method only this entity and
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* the cascade-persist semantics + scheduled inserts/removals are synchronized.
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*
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* @param object $entity
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* @throws \Doctrine\ORM\OptimisticLockException If a version check on an entity that
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* makes use of optimistic locking fails.
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*/
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public function flush($entity = null)
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{
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$this->errorIfClosed();
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$this->unitOfWork->commit($entity);
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}
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/**
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* Finds an Entity by its identifier.
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*
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* This is just a convenient shortcut for getRepository($entityName)->find($id).
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*
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* @param string $entityName
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* @param mixed $identifier
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* @param int $lockMode
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* @param int $lockVersion
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* @return object
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*/
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public function find($entityName, $identifier, $lockMode = LockMode::NONE, $lockVersion = null)
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{
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return $this->getRepository($entityName)->find($identifier, $lockMode, $lockVersion);
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}
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/**
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* Gets a reference to the entity identified by the given type and identifier
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* without actually loading it, if the entity is not yet loaded.
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*
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* @param string $entityName The name of the entity type.
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* @param mixed $id The entity identifier.
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* @return object The entity reference.
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*/
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public function getReference($entityName, $id)
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{
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$class = $this->metadataFactory->getMetadataFor(ltrim($entityName, '\\'));
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if ( ! is_array($id)) {
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$id = array($class->identifier[0] => $id);
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}
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$sortedId = array();
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foreach ($class->identifier as $identifier) {
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if (!isset($id[$identifier])) {
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throw ORMException::missingIdentifierField($class->name, $identifier);
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}
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$sortedId[$identifier] = $id[$identifier];
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}
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// Check identity map first, if its already in there just return it.
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if ($entity = $this->unitOfWork->tryGetById($sortedId, $class->rootEntityName)) {
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return ($entity instanceof $class->name) ? $entity : null;
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}
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if ($class->subClasses) {
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return $this->find($entityName, $sortedId);
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}
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if ( ! is_array($sortedId)) {
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$sortedId = array($class->identifier[0] => $sortedId);
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}
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$entity = $this->proxyFactory->getProxy($class->name, $sortedId);
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$this->unitOfWork->registerManaged($entity, $sortedId, array());
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return $entity;
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}
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/**
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* Gets a partial reference to the entity identified by the given type and identifier
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* without actually loading it, if the entity is not yet loaded.
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*
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* The returned reference may be a partial object if the entity is not yet loaded/managed.
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* If it is a partial object it will not initialize the rest of the entity state on access.
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* Thus you can only ever safely access the identifier of an entity obtained through
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* this method.
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*
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* The use-cases for partial references involve maintaining bidirectional associations
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* without loading one side of the association or to update an entity without loading it.
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* Note, however, that in the latter case the original (persistent) entity data will
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* never be visible to the application (especially not event listeners) as it will
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* never be loaded in the first place.
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*
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* @param string $entityName The name of the entity type.
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* @param mixed $identifier The entity identifier.
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* @return object The (partial) entity reference.
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*/
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public function getPartialReference($entityName, $identifier)
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{
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$class = $this->metadataFactory->getMetadataFor(ltrim($entityName, '\\'));
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// Check identity map first, if its already in there just return it.
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if ($entity = $this->unitOfWork->tryGetById($identifier, $class->rootEntityName)) {
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return ($entity instanceof $class->name) ? $entity : null;
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}
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if ( ! is_array($identifier)) {
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$identifier = array($class->identifier[0] => $identifier);
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}
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$entity = $class->newInstance();
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$class->setIdentifierValues($entity, $identifier);
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$this->unitOfWork->registerManaged($entity, $identifier, array());
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$this->unitOfWork->markReadOnly($entity);
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return $entity;
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}
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/**
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* Clears the EntityManager. All entities that are currently managed
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* by this EntityManager become detached.
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*
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* @param string $entityName if given, only entities of this type will get detached
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*/
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public function clear($entityName = null)
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{
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$this->unitOfWork->clear($entityName);
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}
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/**
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* Closes the EntityManager. All entities that are currently managed
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* by this EntityManager become detached. The EntityManager may no longer
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* be used after it is closed.
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*/
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public function close()
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{
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$this->clear();
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$this->closed = true;
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}
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/**
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* Tells the EntityManager to make an instance managed and persistent.
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*
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* The entity will be entered into the database at or before transaction
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* commit or as a result of the flush operation.
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*
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* NOTE: The persist operation always considers entities that are not yet known to
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* this EntityManager as NEW. Do not pass detached entities to the persist operation.
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*
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* @param object $object The instance to make managed and persistent.
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*/
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public function persist($entity)
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{
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if ( ! is_object($entity)) {
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throw new \InvalidArgumentException(gettype($entity));
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}
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$this->errorIfClosed();
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$this->unitOfWork->persist($entity);
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}
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/**
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* Removes an entity instance.
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*
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* A removed entity will be removed from the database at or before transaction commit
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* or as a result of the flush operation.
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*
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* @param object $entity The entity instance to remove.
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*/
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public function remove($entity)
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{
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if ( ! is_object($entity)) {
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throw new \InvalidArgumentException(gettype($entity));
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}
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$this->errorIfClosed();
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$this->unitOfWork->remove($entity);
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}
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|
|
/**
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* Refreshes the persistent state of an entity from the database,
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* overriding any local changes that have not yet been persisted.
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*
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* @param object $entity The entity to refresh.
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*/
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public function refresh($entity)
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{
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if ( ! is_object($entity)) {
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throw new \InvalidArgumentException(gettype($entity));
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}
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$this->errorIfClosed();
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$this->unitOfWork->refresh($entity);
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}
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|
/**
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* Detaches an entity from the EntityManager, causing a managed entity to
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* become detached. Unflushed changes made to the entity if any
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* (including removal of the entity), will not be synchronized to the database.
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* Entities which previously referenced the detached entity will continue to
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* reference it.
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*
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* @param object $entity The entity to detach.
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*/
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public function detach($entity)
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{
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if ( ! is_object($entity)) {
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throw new \InvalidArgumentException(gettype($entity));
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}
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$this->unitOfWork->detach($entity);
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}
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|
/**
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* Merges the state of a detached entity into the persistence context
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* of this EntityManager and returns the managed copy of the entity.
|
|
* The entity passed to merge will not become associated/managed with this EntityManager.
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*
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* @param object $entity The detached entity to merge into the persistence context.
|
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* @return object The managed copy of the entity.
|
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*/
|
|
public function merge($entity)
|
|
{
|
|
if ( ! is_object($entity)) {
|
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throw new \InvalidArgumentException(gettype($entity));
|
|
}
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$this->errorIfClosed();
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return $this->unitOfWork->merge($entity);
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}
|
|
|
|
/**
|
|
* Creates a copy of the given entity. Can create a shallow or a deep copy.
|
|
*
|
|
* @param object $entity The entity to copy.
|
|
* @return object The new entity.
|
|
* @todo Implementation need. This is necessary since $e2 = clone $e1; throws an E_FATAL when access anything on $e:
|
|
* Fatal error: Maximum function nesting level of '100' reached, aborting!
|
|
*/
|
|
public function copy($entity, $deep = false)
|
|
{
|
|
throw new \BadMethodCallException("Not implemented.");
|
|
}
|
|
|
|
/**
|
|
* Acquire a lock on the given entity.
|
|
*
|
|
* @param object $entity
|
|
* @param int $lockMode
|
|
* @param int $lockVersion
|
|
* @throws OptimisticLockException
|
|
* @throws PessimisticLockException
|
|
*/
|
|
public function lock($entity, $lockMode, $lockVersion = null)
|
|
{
|
|
$this->unitOfWork->lock($entity, $lockMode, $lockVersion);
|
|
}
|
|
|
|
/**
|
|
* Gets the repository for an entity class.
|
|
*
|
|
* @param string $entityName The name of the entity.
|
|
* @return EntityRepository The repository class.
|
|
*/
|
|
public function getRepository($entityName)
|
|
{
|
|
$entityName = ltrim($entityName, '\\');
|
|
|
|
if (isset($this->repositories[$entityName])) {
|
|
return $this->repositories[$entityName];
|
|
}
|
|
|
|
$metadata = $this->getClassMetadata($entityName);
|
|
$repositoryClassName = $metadata->customRepositoryClassName;
|
|
|
|
if ($repositoryClassName === null) {
|
|
$repositoryClassName = $this->config->getDefaultRepositoryClassName();
|
|
}
|
|
|
|
$repository = new $repositoryClassName($this, $metadata);
|
|
|
|
$this->repositories[$entityName] = $repository;
|
|
|
|
return $repository;
|
|
}
|
|
|
|
/**
|
|
* Determines whether an entity instance is managed in this EntityManager.
|
|
*
|
|
* @param object $entity
|
|
* @return boolean TRUE if this EntityManager currently manages the given entity, FALSE otherwise.
|
|
*/
|
|
public function contains($entity)
|
|
{
|
|
return $this->unitOfWork->isScheduledForInsert($entity)
|
|
|| $this->unitOfWork->isInIdentityMap($entity)
|
|
&& ! $this->unitOfWork->isScheduledForDelete($entity);
|
|
}
|
|
|
|
/**
|
|
* Gets the EventManager used by the EntityManager.
|
|
*
|
|
* @return \Doctrine\Common\EventManager
|
|
*/
|
|
public function getEventManager()
|
|
{
|
|
return $this->eventManager;
|
|
}
|
|
|
|
/**
|
|
* Gets the Configuration used by the EntityManager.
|
|
*
|
|
* @return \Doctrine\ORM\Configuration
|
|
*/
|
|
public function getConfiguration()
|
|
{
|
|
return $this->config;
|
|
}
|
|
|
|
/**
|
|
* Throws an exception if the EntityManager is closed or currently not active.
|
|
*
|
|
* @throws ORMException If the EntityManager is closed.
|
|
*/
|
|
private function errorIfClosed()
|
|
{
|
|
if ($this->closed) {
|
|
throw ORMException::entityManagerClosed();
|
|
}
|
|
}
|
|
|
|
/**
|
|
* Check if the Entity manager is open or closed.
|
|
*
|
|
* @return bool
|
|
*/
|
|
public function isOpen()
|
|
{
|
|
return (!$this->closed);
|
|
}
|
|
|
|
/**
|
|
* Gets the UnitOfWork used by the EntityManager to coordinate operations.
|
|
*
|
|
* @return \Doctrine\ORM\UnitOfWork
|
|
*/
|
|
public function getUnitOfWork()
|
|
{
|
|
return $this->unitOfWork;
|
|
}
|
|
|
|
/**
|
|
* Gets a hydrator for the given hydration mode.
|
|
*
|
|
* This method caches the hydrator instances which is used for all queries that don't
|
|
* selectively iterate over the result.
|
|
*
|
|
* @param int $hydrationMode
|
|
* @return \Doctrine\ORM\Internal\Hydration\AbstractHydrator
|
|
*/
|
|
public function getHydrator($hydrationMode)
|
|
{
|
|
if ( ! isset($this->hydrators[$hydrationMode])) {
|
|
$this->hydrators[$hydrationMode] = $this->newHydrator($hydrationMode);
|
|
}
|
|
|
|
return $this->hydrators[$hydrationMode];
|
|
}
|
|
|
|
/**
|
|
* Create a new instance for the given hydration mode.
|
|
*
|
|
* @param int $hydrationMode
|
|
* @return \Doctrine\ORM\Internal\Hydration\AbstractHydrator
|
|
*/
|
|
public function newHydrator($hydrationMode)
|
|
{
|
|
switch ($hydrationMode) {
|
|
case Query::HYDRATE_OBJECT:
|
|
return new Internal\Hydration\ObjectHydrator($this);
|
|
|
|
case Query::HYDRATE_ARRAY:
|
|
return new Internal\Hydration\ArrayHydrator($this);
|
|
|
|
case Query::HYDRATE_SCALAR:
|
|
return new Internal\Hydration\ScalarHydrator($this);
|
|
|
|
case Query::HYDRATE_SINGLE_SCALAR:
|
|
return new Internal\Hydration\SingleScalarHydrator($this);
|
|
|
|
case Query::HYDRATE_SIMPLEOBJECT:
|
|
return new Internal\Hydration\SimpleObjectHydrator($this);
|
|
|
|
default:
|
|
if ($class = $this->config->getCustomHydrationMode($hydrationMode)) {
|
|
return new $class($this);
|
|
}
|
|
}
|
|
|
|
throw ORMException::invalidHydrationMode($hydrationMode);
|
|
}
|
|
|
|
/**
|
|
* Gets the proxy factory used by the EntityManager to create entity proxies.
|
|
*
|
|
* @return ProxyFactory
|
|
*/
|
|
public function getProxyFactory()
|
|
{
|
|
return $this->proxyFactory;
|
|
}
|
|
|
|
/**
|
|
* Helper method to initialize a lazy loading proxy or persistent collection.
|
|
*
|
|
* This method is a no-op for other objects
|
|
*
|
|
* @param object $obj
|
|
*/
|
|
public function initializeObject($obj)
|
|
{
|
|
$this->unitOfWork->initializeObject($obj);
|
|
}
|
|
|
|
/**
|
|
* Factory method to create EntityManager instances.
|
|
*
|
|
* @param mixed $conn An array with the connection parameters or an existing
|
|
* Connection instance.
|
|
* @param Configuration $config The Configuration instance to use.
|
|
* @param EventManager $eventManager The EventManager instance to use.
|
|
* @return EntityManager The created EntityManager.
|
|
*/
|
|
public static function create($conn, Configuration $config, EventManager $eventManager = null)
|
|
{
|
|
if ( ! $config->getMetadataDriverImpl()) {
|
|
throw ORMException::missingMappingDriverImpl();
|
|
}
|
|
|
|
switch (true) {
|
|
case (is_array($conn)):
|
|
$conn = \Doctrine\DBAL\DriverManager::getConnection(
|
|
$conn, $config, ($eventManager ?: new EventManager())
|
|
);
|
|
break;
|
|
|
|
case ($conn instanceof Connection):
|
|
if ($eventManager !== null && $conn->getEventManager() !== $eventManager) {
|
|
throw ORMException::mismatchedEventManager();
|
|
}
|
|
break;
|
|
|
|
default:
|
|
throw new \InvalidArgumentException("Invalid argument: " . $conn);
|
|
}
|
|
|
|
return new EntityManager($conn, $config, $conn->getEventManager());
|
|
}
|
|
|
|
/**
|
|
* Gets the enabled filters.
|
|
*
|
|
* @return FilterCollection The active filter collection.
|
|
*/
|
|
public function getFilters()
|
|
{
|
|
if (null === $this->filterCollection) {
|
|
$this->filterCollection = new FilterCollection($this);
|
|
}
|
|
|
|
return $this->filterCollection;
|
|
}
|
|
|
|
/**
|
|
* Checks whether the state of the filter collection is clean.
|
|
*
|
|
* @return boolean True, if the filter collection is clean.
|
|
*/
|
|
public function isFiltersStateClean()
|
|
{
|
|
return null === $this->filterCollection
|
|
|| $this->filterCollection->isClean();
|
|
}
|
|
|
|
/**
|
|
* Checks whether the Entity Manager has filters.
|
|
*
|
|
* @return True, if the EM has a filter collection.
|
|
*/
|
|
public function hasFilters()
|
|
{
|
|
return null !== $this->filterCollection;
|
|
}
|
|
}
|