2007-01-02 18:24:43 +03:00
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<?php
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/*
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2009-02-04 19:35:36 +03:00
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* $Id$
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2007-01-02 18:24:43 +03:00
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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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2009-02-04 19:35:36 +03:00
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* <http://www.doctrine-project.org>.
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2007-01-02 18:24:43 +03:00
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*/
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2008-05-01 13:41:47 +04:00
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2009-01-22 22:38:10 +03:00
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namespace Doctrine\ORM;
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2009-05-03 14:58:16 +04:00
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use Doctrine\Common\DoctrineException;
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use Doctrine\ORM\Mapping\AssociationMapping;
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2007-01-02 18:24:43 +03:00
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/**
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2009-01-29 20:00:44 +03:00
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* A PersistentCollection represents a collection of elements that have persistent state.
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2009-06-14 21:34:28 +04:00
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*
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* Collections of entities represent only the associations (links) to those entities.
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2008-08-16 23:40:59 +04:00
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* That means, if the collection is part of a many-many mapping and you remove
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2009-02-06 20:16:39 +03:00
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* entities from the collection, only the links in the relation table are removed (on flush).
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2008-08-16 23:40:59 +04:00
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* Similarly, if you remove entities from a collection that is part of a one-many
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2009-06-23 21:50:13 +04:00
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* mapping this will only result in the nulling out of the foreign keys on flush.
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* If you want entities in a one-many collection to be removed when
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2008-08-16 23:40:59 +04:00
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* they're removed from the collection, use deleteOrphans => true on the one-many
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* mapping.
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2007-01-02 18:24:43 +03:00
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*
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @since 2.0
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* @version $Revision: 4930 $
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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* @author Roman Borschel <roman@code-factory.org>
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2007-01-02 18:24:43 +03:00
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*/
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final class PersistentCollection extends \Doctrine\Common\Collections\Collection
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{
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/**
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* The base type of the collection.
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*
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* @var string
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*/
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private $_type;
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/**
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* A snapshot of the collection at the moment it was fetched from the database.
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* This is used to create a diff of the collection at commit time.
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*
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* @var array
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*/
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private $_snapshot = array();
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2007-01-02 18:24:43 +03:00
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/**
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* The entity that owns this collection.
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*
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* @var object
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*/
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private $_owner;
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2007-01-02 18:24:43 +03:00
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/**
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* The association mapping the collection belongs to.
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* This is currently either a OneToManyMapping or a ManyToManyMapping.
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*
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* @var Doctrine\ORM\Mapping\AssociationMapping
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*/
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private $_association;
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2007-01-02 18:24:43 +03:00
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/**
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* The name of the field that is used for collection indexing.
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*
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* @var string
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*/
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private $_keyField;
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/**
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* The EntityManager that manages the persistence of the collection.
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*
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* @var Doctrine\ORM\EntityManager
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*/
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private $_em;
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/**
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* The name of the field on the target entities that points to the owner
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* of the collection. This is only set if the association is bi-directional.
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*
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* @var string
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*/
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private $_backRefFieldName;
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/**
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* Hydration flag.
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*
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* @var boolean
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* @see setHydrationFlag()
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*/
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private $_hydrationFlag = false;
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2009-01-29 20:00:44 +03:00
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/**
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* The class descriptor of the owning entity.
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*/
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2009-05-17 23:27:12 +04:00
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private $_typeClass;
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2009-02-04 19:35:36 +03:00
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/**
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* Whether the collection is dirty and needs to be synchronized with the database
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* when the UnitOfWork that manages its persistent state commits.
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*
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* @var boolean
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*/
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private $_isDirty = false;
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/** Whether the collection has already been initialized. */
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private $_initialized = false;
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2007-01-02 18:24:43 +03:00
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/**
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* Creates a new persistent collection.
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*/
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2009-05-13 19:19:27 +04:00
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public function __construct(EntityManager $em, $class, array $data = array())
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{
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parent::__construct($data);
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$this->_type = $class->name;
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$this->_em = $em;
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$this->_typeClass = $class;
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
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* INTERNAL: Sets the key column for this collection
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*
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* @param string $column
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* @return Doctrine_Collection
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*/
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2008-03-23 14:30:29 +03:00
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public function setKeyField($fieldName)
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{
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$this->_keyField = $fieldName;
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
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* INTERNAL: returns the name of the key column
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*
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* @return string
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*/
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public function getKeyField()
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{
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return $this->_keyField;
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}
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2008-01-12 22:49:11 +03:00
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2007-01-02 18:24:43 +03:00
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/**
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* INTERNAL:
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* Sets the collection owner. Used (only?) during hydration.
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*
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* @param object $entity
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* @param AssociationMapping $assoc
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*/
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public function setOwner($entity, AssociationMapping $assoc)
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{
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$this->_owner = $entity;
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$this->_association = $assoc;
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if ($assoc->isInverseSide()) {
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// For sure bi-directional
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$this->_backRefFieldName = $assoc->mappedByFieldName;
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} else {
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$targetClass = $this->_em->getClassMetadata($assoc->targetEntityName);
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if (isset($targetClass->inverseMappings[$assoc->sourceFieldName])) {
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// Bi-directional
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$this->_backRefFieldName = $targetClass->inverseMappings[$assoc->sourceFieldName]
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->sourceFieldName;
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}
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2008-08-31 22:27:16 +04:00
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}
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2007-01-02 18:24:43 +03:00
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
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* INTERNAL:
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* Gets the collection owner.
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*
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* @return object
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*/
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public function getOwner()
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{
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return $this->_owner;
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}
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2007-10-21 10:23:59 +04:00
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2009-02-04 19:35:36 +03:00
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/**
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* Gets the class descriptor for the owning entity class.
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*
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* @return Doctrine\ORM\Mapping\ClassMetadata
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*/
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public function getOwnerClass()
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{
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return $this->_typeClass;
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}
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2007-01-02 18:24:43 +03:00
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/**
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* Removes an element from the collection.
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2007-01-02 18:24:43 +03:00
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*
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* @param mixed $key
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* @return boolean
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* @override
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*/
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public function remove($key)
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{
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//TODO: delete entity if shouldDeleteOrphans
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/*if ($this->_association->isOneToMany() && $this->_association->shouldDeleteOrphans()) {
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$this->_em->delete($removed);
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}*/
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$removed = parent::remove($key);
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if ($removed) {
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$this->_changed();
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}
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return $removed;
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
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* When the collection is a Map this is like put(key,value)/add(key,value).
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* When the collection is a List this is like add(position,value).
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*
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* @param integer $key
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* @param mixed $value
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* @override
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*/
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public function set($key, $value)
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{
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parent::set($key, $value);
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if ( ! $this->_hydrationFlag) {
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$this->_changed();
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}
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2007-01-02 18:24:43 +03:00
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
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* Adds an element to the collection.
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*
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* @param mixed $value
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* @param string $key
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* @return boolean Always TRUE.
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* @override
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*/
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public function add($value)
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{
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parent::add($value);
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2008-08-31 22:27:16 +04:00
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if ($this->_hydrationFlag) {
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if ($this->_backRefFieldName) {
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2009-05-07 20:36:27 +04:00
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// Set back reference to owner
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if ($this->_association->isOneToMany()) {
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$this->_typeClass->getReflectionProperty($this->_backRefFieldName)
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->setValue($value, $this->_owner);
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} else {
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// ManyToMany
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$this->_typeClass->getReflectionProperty($this->_backRefFieldName)
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->getValue($value)->add($this->_owner);
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}
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2008-08-31 22:27:16 +04:00
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}
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} else {
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$this->_changed();
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}
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2008-02-24 19:54:02 +03:00
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2007-01-02 18:24:43 +03:00
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return true;
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}
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2008-08-16 23:40:59 +04:00
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/**
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2009-05-03 14:58:16 +04:00
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* Adds all elements of the other collection to this collection.
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2008-08-16 23:40:59 +04:00
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*
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2009-02-04 19:35:36 +03:00
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* @param object $otherCollection
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2008-08-16 23:40:59 +04:00
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* @todo Impl
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2009-02-04 19:35:36 +03:00
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* @override
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2008-08-16 23:40:59 +04:00
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*/
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public function addAll($otherCollection)
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{
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2009-01-04 19:15:32 +03:00
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parent::addAll($otherCollection);
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2008-08-16 23:40:59 +04:00
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//...
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//TODO: Register collection as dirty with the UoW if necessary
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//$this->_changed();
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}
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2009-05-07 17:54:01 +04:00
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2009-05-17 23:27:12 +04:00
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/**
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* Checks whether an element is contained in the collection.
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* This is an O(n) operation.
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*/
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2009-05-07 17:54:01 +04:00
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public function contains($element)
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{
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2009-05-17 23:27:12 +04:00
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if ( ! $this->_initialized) {
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//TODO: Probably need to hit the database here...?
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//return $this->_checkElementExistence($element);
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2009-05-07 17:54:01 +04:00
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}
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return parent::contains($element);
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}
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2009-05-17 23:27:12 +04:00
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/**
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* @override
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*/
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public function count()
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{
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if ( ! $this->_initialized) {
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//TODO: Initialize
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}
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return parent::count();
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}
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2009-05-07 17:54:01 +04:00
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private function _checkElementExistence($element)
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{
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2009-05-17 23:27:12 +04:00
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}
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private function _initialize()
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{
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2009-05-07 17:54:01 +04:00
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}
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2008-08-31 22:27:16 +04:00
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/**
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* INTERNAL:
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* Sets a flag that indicates whether the collection is currently being hydrated.
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2009-05-03 14:58:16 +04:00
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*
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* If the flag is set to TRUE, this has the following consequences:
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*
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2008-08-31 22:27:16 +04:00
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* 1) During hydration, bidirectional associations are completed automatically
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* by setting the back reference.
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* 2) During hydration no change notifications are reported to the UnitOfWork.
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2009-05-03 14:58:16 +04:00
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* That means add() etc. do not cause the collection to be scheduled
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2008-08-31 22:27:16 +04:00
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* for an update.
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*
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* @param boolean $bool
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*/
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2009-02-07 20:02:13 +03:00
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public function setHydrationFlag($bool)
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2008-08-31 22:27:16 +04:00
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{
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$this->_hydrationFlag = $bool;
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2007-01-02 18:24:43 +03:00
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}
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2007-10-21 10:23:59 +04:00
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2007-01-02 18:24:43 +03:00
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/**
|
2009-05-03 14:58:16 +04:00
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* INTERNAL:
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* Tells this collection to take a snapshot of its current state.
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2007-05-16 23:20:55 +04:00
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*/
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2009-02-07 20:02:13 +03:00
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public function takeSnapshot()
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2007-05-16 23:20:55 +04:00
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{
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2009-02-07 20:02:13 +03:00
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$this->_snapshot = $this->_elements;
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2007-05-16 23:20:55 +04:00
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}
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2007-10-21 10:23:59 +04:00
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2007-05-16 23:20:55 +04:00
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/**
|
2009-01-03 22:50:13 +03:00
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* INTERNAL:
|
2009-01-14 00:56:43 +03:00
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* Returns the last snapshot of the elements in the collection.
|
2007-05-16 23:20:55 +04:00
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*
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2009-01-14 00:56:43 +03:00
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* @return array The last snapshot of the elements.
|
2007-05-16 23:20:55 +04:00
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*/
|
2009-02-07 20:02:13 +03:00
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public function getSnapshot()
|
2007-05-16 23:20:55 +04:00
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{
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return $this->_snapshot;
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}
|
2007-10-21 10:23:59 +04:00
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2007-11-16 01:45:09 +03:00
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/**
|
2009-01-03 22:50:13 +03:00
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* INTERNAL:
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* getDeleteDiff
|
2007-11-16 01:45:09 +03:00
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*
|
2008-08-16 23:40:59 +04:00
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* @return array
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2007-11-16 01:45:09 +03:00
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*/
|
2007-05-17 01:28:33 +04:00
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public function getDeleteDiff()
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{
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2009-02-07 20:02:13 +03:00
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return array_udiff($this->_snapshot, $this->_elements, array($this, '_compareRecords'));
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2007-05-17 01:28:33 +04:00
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}
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2007-11-16 01:45:09 +03:00
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/**
|
2008-08-16 23:40:59 +04:00
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* INTERNAL getInsertDiff
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2007-11-16 01:45:09 +03:00
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*
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2008-08-16 23:40:59 +04:00
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* @return array
|
2007-11-16 01:45:09 +03:00
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*/
|
2007-05-17 01:28:33 +04:00
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public function getInsertDiff()
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{
|
2009-02-07 20:02:13 +03:00
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return array_udiff($this->_elements, $this->_snapshot, array($this, '_compareRecords'));
|
2007-09-10 20:16:24 +04:00
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}
|
2007-10-21 10:23:59 +04:00
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|
2007-09-10 20:16:24 +04:00
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/**
|
2008-01-12 22:49:11 +03:00
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* Compares two records. To be used on _snapshot diffs using array_udiff.
|
2008-08-16 23:40:59 +04:00
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*
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* @return integer
|
2007-09-10 20:16:24 +04:00
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*/
|
2009-02-02 14:55:50 +03:00
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private function _compareRecords($a, $b)
|
2007-09-10 20:16:24 +04:00
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{
|
2009-05-17 23:27:12 +04:00
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return $a === $b ? 0 : 1;
|
2007-05-17 01:28:33 +04:00
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}
|
2007-11-05 21:05:17 +03:00
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/**
|
2008-08-31 22:27:16 +04:00
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|
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* INTERNAL: Gets the association mapping of the collection.
|
2008-08-16 23:40:59 +04:00
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*
|
2009-01-14 00:56:43 +03:00
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* @return Doctrine\ORM\Mapping\AssociationMapping
|
2007-11-05 21:05:17 +03:00
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*/
|
2008-08-16 23:40:59 +04:00
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public function getMapping()
|
2007-11-05 21:05:17 +03:00
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|
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{
|
2009-02-02 14:55:50 +03:00
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return $this->_association;
|
2007-11-05 21:05:17 +03:00
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}
|
2008-06-15 19:56:28 +04:00
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|
2008-08-16 23:40:59 +04:00
|
|
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/**
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* Clears the collection.
|
|
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*/
|
2008-06-15 19:56:28 +04:00
|
|
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public function clear()
|
|
|
|
{
|
2008-08-16 23:40:59 +04:00
|
|
|
//TODO: Register collection as dirty with the UoW if necessary
|
2008-08-22 13:05:14 +04:00
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|
|
//TODO: If oneToMany() && shouldDeleteOrphan() delete entities
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|
|
|
/*if ($this->_association->isOneToMany() && $this->_association->shouldDeleteOrphans()) {
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|
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foreach ($this->_data as $entity) {
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|
|
$this->_em->delete($entity);
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|
|
}
|
|
|
|
}*/
|
2009-01-04 19:15:32 +03:00
|
|
|
parent::clear();
|
2009-05-07 20:36:27 +04:00
|
|
|
$this->_changed();
|
2008-08-16 23:40:59 +04:00
|
|
|
}
|
|
|
|
|
|
|
|
private function _changed()
|
|
|
|
{
|
2009-02-02 14:55:50 +03:00
|
|
|
$this->_isDirty = true;
|
|
|
|
}
|
2009-05-03 14:58:16 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Gets a boolean flag indicating whether this colleciton is dirty which means
|
|
|
|
* its state needs to be synchronized with the database.
|
|
|
|
*
|
|
|
|
* @return boolean TRUE if the collection is dirty, FALSE otherwise.
|
|
|
|
*/
|
2009-02-02 14:55:50 +03:00
|
|
|
public function isDirty()
|
|
|
|
{
|
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|
|
return $this->_isDirty;
|
|
|
|
}
|
2009-05-03 14:58:16 +04:00
|
|
|
|
|
|
|
/**
|
|
|
|
* Sets a boolean flag, indicating whether this collection is dirty.
|
|
|
|
*
|
|
|
|
* @param boolean $dirty Whether the collection should be marked dirty or not.
|
|
|
|
*/
|
2009-02-02 14:55:50 +03:00
|
|
|
public function setDirty($dirty)
|
|
|
|
{
|
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|
|
$this->_isDirty = $dirty;
|
2008-06-15 19:56:28 +04:00
|
|
|
}
|
2009-05-07 21:56:09 +04:00
|
|
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|
|
|
|
/* Serializable implementation */
|
|
|
|
|
|
|
|
/**
|
|
|
|
* Called by PHP when this collection is serialized. Ensures that only the
|
|
|
|
* elements are properly serialized.
|
|
|
|
*
|
|
|
|
* @internal Tried to implement Serializable first but that did not work well
|
|
|
|
* with circular references. This solution seems simpler and works well.
|
|
|
|
*/
|
|
|
|
public function __sleep()
|
|
|
|
{
|
|
|
|
return array('_elements');
|
|
|
|
}
|
2009-02-20 08:46:20 +03:00
|
|
|
}
|