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doctrine2/lib/Doctrine/ORM/EntityRepository.php

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<?php
/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.org>.
*/
namespace Doctrine\ORM;
/**
* A repository provides the illusion of an in-memory Entity store.
* Base class for all custom user-defined repositories.
* Provides basic finder methods, common to all repositories.
*
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.doctrine-project.org
* @since 2.0
* @version $Revision$
* @author Roman Borschel <roman@code-factory.org>
*/
class EntityRepository
{
protected $_entityName;
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protected $_em;
protected $_classMetadata;
public function __construct($em, \Doctrine\ORM\Mapping\ClassMetadata $classMetadata)
{
$this->_entityName = $classMetadata->getClassName();
$this->_em = $em;
$this->_classMetadata = $classMetadata;
}
/**
* creates a new Doctrine_Query object and adds the component name
* of this table as the query 'from' part
*
* @param string Optional alias name for component aliasing.
*
* @return Doctrine_Query
*/
protected function _createQuery($alias = '')
{
if ( ! empty($alias)) {
$alias = ' ' . trim($alias);
}
return $this->_em->createQuery()->from($this->_entityName . $alias);
}
/**
* Clears the repository, causing all managed entities to become detached.
*
* @return void
*/
public function clear()
{
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$this->_em->getUnitOfWork()->clearIdentitiesForEntity($this->_classMetadata->getRootClassName());
}
/**
* Finds an entity by its primary key.
*
* @param $id The identifier.
* @param int $hydrationMode The hydration mode to use.
* @return mixed Array or Doctrine_Entity or false if no result
*/
public function find($id, $hydrationMode = null)
{
if (is_null($id)) {
return false;
}
if (is_array($id) && count($id) > 1) {
// it's a composite key. keys = field names, values = values.
$values = array_values($id);
$keys = array_keys($id);
} else {
$values = is_array($id) ? array_values($id) : array($id);
$keys = $this->_classMetadata->getIdentifier();
}
// Check identity map first
if ($entity = $this->_em->getUnitOfWork()->tryGetById($id, $this->_classMetadata->getRootClassName())) {
return $entity; // Hit!
}
return $this->_createQuery()
->where(implode(' = ? AND ', $keys) . ' = ?')
->fetchOne($values, $hydrationMode);
}
/**
* Finds all entities in the repository.
*
* @param int $hydrationMode
* @return mixed
*/
public function findAll($hydrationMode = null)
{
return $this->_createQuery()->execute(array(), $hydrationMode);
}
/**
* findBy
*
* @param string $column
* @param string $value
* @param string $hydrationMode
* @return void
*/
protected function findBy($fieldName, $value, $hydrationMode = null)
{
return $this->_createQuery()->where($fieldName . ' = ?')->execute(array($value), $hydrationMode);
}
/**
* findOneBy
*
* @param string $column
* @param string $value
* @param string $hydrationMode
* @return void
*/
protected function findOneBy($fieldName, $value, $hydrationMode = null)
{
$results = $this->_createQuery()->where($fieldName . ' = ?')->limit(1)->execute(
array($value), $hydrationMode);
return $hydrationMode === Doctrine::HYDRATE_ARRAY ? array_shift($results) : $results->getFirst();
}
/**
* findBySql
* finds records with given SQL where clause
* returns a collection of records
*
* @param string $dql DQL after WHERE clause
* @param array $params query parameters
* @param int $hydrationMode Query::HYDRATE_ARRAY or Query::HYDRATE_RECORD
* @return Doctrine_Collection
*
* @todo This actually takes DQL, not SQL, but it requires column names
* instead of field names. This should be fixed to use raw SQL instead.
*/
public function findBySql($dql, array $params = array(), $hydrationMode = null)
{
return $this->_createQuery()->where($dql)->execute($params, $hydrationMode);
}
/**
* findByDql
* finds records with given DQL where clause
* returns a collection of records
*
* @param string $dql DQL after WHERE clause
* @param array $params query parameters
* @param int $hydrationMode Query::HYDRATE_ARRAY or Query::HYDRATE_RECORD
* @return Doctrine_Collection
*/
public function findByDql($dql, array $params = array(), $hydrationMode = null)
{
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$query = new Doctrine_Query($this->_em);
$component = $this->getComponentName();
$dql = 'FROM ' . $component . ' WHERE ' . $dql;
return $query->query($dql, $params, $hydrationMode);
}
/**
* Adds support for magic finders.
* findByColumnName, findByRelationAlias
* findById, findByContactId, etc.
*
* @return void
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* @throws BadMethodCallException If the method called is an invalid find* method
* or no find* method at all and therefore an invalid
* method call.
*/
public function __call($method, $arguments)
{
if (substr($method, 0, 6) == 'findBy') {
$by = substr($method, 6, strlen($method));
$method = 'findBy';
} else if (substr($method, 0, 9) == 'findOneBy') {
$by = substr($method, 9, strlen($method));
$method = 'findOneBy';
} else {
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throw new BadMethodCallException("Undefined method '$method'.");
}
if (isset($by)) {
if ( ! isset($arguments[0])) {
throw new Doctrine_Mapper_Exception('You must specify the value to findBy.');
}
$fieldName = Doctrine::tableize($by);
$hydrationMode = isset($arguments[1]) ? $arguments[1]:null;
if ($this->_classMetadata->hasField($fieldName)) {
return $this->$method($fieldName, $arguments[0], $hydrationMode);
} else if ($this->_classMetadata->hasRelation($by)) {
$relation = $this->_classMetadata->getRelation($by);
if ($relation['type'] === Doctrine_Relation::MANY) {
throw new Doctrine_Mapper_Exception('Cannot findBy many relationship.');
}
return $this->$method($relation['local'], $arguments[0], $hydrationMode);
} else {
throw new Doctrine_Mapper_Exception('Cannot find by: ' . $by . '. Invalid field or relationship alias.');
}
}
}
}