869 lines
23 KiB
PHP
869 lines
23 KiB
PHP
<?php
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/*
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* $Id$
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*
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* This software consists of voluntary contributions made by many individuals
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* and is licensed under the LGPL. For more information, see
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* <http://www.phpdoctrine.org>.
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*/
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#namespace Doctrine::ORM;
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/**
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* A persistent collection of entities.
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* A collection object is strongly typed in the sense that it can only contain
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* entities of a specific type or one it's subtypes.
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*
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* @package Doctrine
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* @subpackage Collection
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @link www.phpdoctrine.org
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* @since 1.0
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* @version $Revision$
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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*/
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class Doctrine_Collection extends Doctrine_Access implements Countable, IteratorAggregate, Serializable
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{
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protected $_entityBaseType;
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/**
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* An array containing the records of this collection.
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*
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* @var array
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*/
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protected $_data = array();
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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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protected $_snapshot = array();
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/**
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* This entity that owns this collection.
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*
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* @var Doctrine::ORM::Entity
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*/
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protected $_owner;
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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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protected $_associationMapping;
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/**
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* The name of the column that is used for collection key mapping.
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*
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* @var string
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*/
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protected $_keyField;
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/**
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* Helper variable. Used for fast null value testing.
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*
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* @var Doctrine_Null
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*/
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//protected static $null;
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/**
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* The EntityManager.
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*
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* @var EntityManager
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*/
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protected $_em;
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protected $_isDirty = false;
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/**
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* Constructor.
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*
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* @param Doctrine_Mapper|string $mapper The mapper used by the collection.
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* @param string $keyColumn The field name that will be used as the key
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* in the collection.
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*/
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public function __construct($entityBaseType, $keyField = null)
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{
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$this->_entityBaseType = $entityBaseType;
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$this->_em = Doctrine_EntityManagerFactory::getManager($entityBaseType);
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if ($keyField !== null) {
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if ( ! $this->_em->getClassMetadata($entityBaseType)->hasField($keyField)) {
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throw new Doctrine_Collection_Exception("Invalid field '$keyField' can't be uses as key.");
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}
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$this->_keyField = $keyField;
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}
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}
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/**
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* setData
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*
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* @param array $data
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* @return Doctrine_Collection
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*/
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public function setData(array $data)
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{
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$this->_data = $data;
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}
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/**
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* Serializes the collection.
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* This method is automatically called when this Doctrine_Collection is serialized.
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*
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* Part of the implementation of the Serializable interface.
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*
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* @return array
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*/
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public function serialize()
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{
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$vars = get_object_vars($this);
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unset($vars['reference']);
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unset($vars['relation']);
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unset($vars['expandable']);
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unset($vars['expanded']);
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unset($vars['generator']);
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return serialize($vars);
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}
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/**
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* Reconstitutes the collection object from it's serialized form.
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* This method is automatically called everytime a Doctrine_Collection object is unserialized.
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*
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* Part of the implementation of the Serializable interface.
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*
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* @param string $serialized The serialized data
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*
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* @return void
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*/
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public function unserialize($serialized)
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{
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$manager = Doctrine_EntityManagerFactory::getManager();
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$connection = $manager->getConnection();
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$array = unserialize($serialized);
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foreach ($array as $name => $values) {
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$this->$name = $values;
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}
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$keyColumn = isset($array['keyField']) ? $array['keyField'] : null;
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if ($keyColumn !== null) {
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$this->_keyField = $keyColumn;
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}
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}
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/**
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* setKeyField
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* sets the key column for this collection
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*
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* @param string $column
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* @return Doctrine_Collection
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*/
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public function setKeyField($fieldName)
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{
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$this->_keyField = $fieldName;
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return $this;
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}
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/**
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* getKeyField
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* 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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/**
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* getData
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* returns all the records as an array
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*
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* @return array
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*/
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public function getData()
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{
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return $this->_data;
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}
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/**
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* getFirst
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* returns the first record in the collection
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*
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* @return mixed
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*/
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public function getFirst()
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{
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return reset($this->_data);
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}
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/**
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* getLast
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* returns the last record in the collection
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*
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* @return mixed
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*/
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public function getLast()
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{
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return end($this->_data);
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}
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/**
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* returns the last record in the collection
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*
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* @return mixed
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*/
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public function end()
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{
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return end($this->_data);
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}
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/**
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* returns the current key
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*
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* @return mixed
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*/
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public function key()
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{
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return key($this->_data);
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}
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/**
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* INTERNAL:
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* sets a reference pointer
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*
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* @return void
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*/
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public function setReference(Doctrine_Entity $entity, Doctrine_Relation $relation)
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{
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$this->_owner = $entity;
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//$this->relation = $relation;
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/*if ($relation instanceof Doctrine_Relation_ForeignKey ||
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$relation instanceof Doctrine_Relation_LocalKey) {
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$this->referenceField = $relation->getForeignFieldName();
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$value = $entity->get($relation->getLocalFieldName());
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foreach ($this->_data as $entity) {
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if ($value !== null) {
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$entity->set($this->referenceField, $value, false);
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} else {
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$entity->set($this->referenceField, $this->_owner, false);
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}
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}
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} else if ($relation instanceof Doctrine_Relation_Association) {
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}*/
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}
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/**
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* INTERNAL:
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* getReference
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*
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* @return mixed
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*/
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public function getReference()
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{
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return $this->_owner;
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}
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/**
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* Removes an entity from the collection.
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*
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* @param mixed $key
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* @return boolean
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*/
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public function remove($key)
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{
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$removed = $this->_data[$key];
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unset($this->_data[$key]);
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return $removed;
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}
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/**
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* Checks whether the collection contains an entity.
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*
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* @param mixed $key the key of the element
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* @return boolean
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* @todo Rename to containsKey().
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*/
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public function contains($key)
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{
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return isset($this->_data[$key]);
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}
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/**
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*
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*/
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public function search(Doctrine_Entity $record)
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{
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return array_search($record, $this->_data, true);
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}
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/**
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* returns a record for given key
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*
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* Collection also maps referential information to newly created records
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*
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* @param mixed $key the key of the element
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* @return Doctrine_Entity return a specified record
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*/
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public function get($key)
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{
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if (isset($this->_data[$key])) {
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return $this->_data[$key];
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}
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return null;
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}
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/**
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* Returns the primary keys of all records in the collection.
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*
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* @return array An array containing all primary keys.
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* @todo Rename.
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*/
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public function getPrimaryKeys()
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{
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$list = array();
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$idFieldNames = (array)$this->_mapper->getClassMetadata()->getIdentifier();
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foreach ($this->_data as $record) {
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if (is_array($record)) {
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if (count($idFieldNames) > 1) {
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$id = array();
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foreach ($idFieldNames as $fieldName) {
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if (isset($record[$fieldName])) {
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$id[] = $record[$fieldName];
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}
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}
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$list[] = $id;
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} else {
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$idField = $idFieldNames[0];
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if (isset($record[$idField])) {
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$list[] = $record[$idField];
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}
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}
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} else {
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// @todo does not take composite keys into account
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$ids = $record->identifier();
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$list[] = count($ids) > 0 ? array_pop($ids) : null;
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}
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}
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return $list;
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}
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/**
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* returns all keys
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* @return array
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*/
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public function getKeys()
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{
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return array_keys($this->_data);
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}
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/**
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* Returns the number of records in this collection.
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*
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* Implementation of the Countable interface.
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*
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* @return integer The number of records in the collection.
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*/
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public function count()
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{
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return count($this->_data);
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}
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/**
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* set
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* @param integer $key
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* @param Doctrine_Entity $record
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* @return void
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* @internal Can't type-hint the second parameter to Doctrine_Entity because we need
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* to adhere to the Doctrine_Access::set() signature.
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*/
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public function set($key, $value)
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{
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if ( ! $value instanceof Doctrine_Entity) {
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throw new Doctrine_Collection_Exception('Value variable in set is not an instance of Doctrine_Entity');
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}
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$this->_data[$key] = $value;
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}
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/**
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* adds a record to collection
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*
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* @param Doctrine_Entity $record record to be added
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* @param string $key optional key for the record
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* @return boolean
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*/
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public function add($value, $key = null)
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{
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/** @TODO Use raw getters/setters */
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if ( ! $value instanceof Doctrine_Entity) {
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throw new Doctrine_Record_Exception('Value variable in set is not an instance of Doctrine_Entity.');
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}
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/*
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* for some weird reason in_array cannot be used here (php bug ?)
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*
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* if used it results in fatal error : [ nesting level too deep ]
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*/
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foreach ($this->_data as $val) {
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if ($val === $value) {
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return false;
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}
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}
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if (isset($key)) {
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if (isset($this->_data[$key])) {
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return false;
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}
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$this->_data[$key] = $value;
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return true;
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}
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$this->_data[] = $value;
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return true;
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}
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/**
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* INTERNAL:
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* loadRelated
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*
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* @param mixed $name
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* @return boolean
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*/
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public function loadRelated($name = null)
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{
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$list = array();
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$query = new Doctrine_Query($this->_mapper->getConnection());
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if ( ! isset($name)) {
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foreach ($this->_data as $record) {
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// FIXME: composite key support
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$ids = $record->identifier();
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$value = count($ids) > 0 ? array_pop($ids) : null;
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if ($value !== null) {
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$list[] = $value;
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}
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}
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$query->from($this->_mapper->getComponentName()
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. '(' . implode(", ",$this->_mapper->getTable()->getPrimaryKeys()) . ')');
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$query->where($this->_mapper->getComponentName()
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. '.id IN (' . substr(str_repeat("?, ", count($list)),0,-2) . ')');
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return $query;
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}
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$rel = $this->_mapper->getTable()->getRelation($name);
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if ($rel instanceof Doctrine_Relation_LocalKey || $rel instanceof Doctrine_Relation_ForeignKey) {
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foreach ($this->_data as $record) {
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$list[] = $record[$rel->getLocal()];
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}
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} else {
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foreach ($this->_data as $record) {
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$ids = $record->identifier();
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$value = count($ids) > 0 ? array_pop($ids) : null;
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if ($value !== null) {
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$list[] = $value;
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}
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}
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}
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$dql = $rel->getRelationDql(count($list), 'collection');
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$coll = $query->query($dql, $list);
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$this->populateRelated($name, $coll);
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}
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/**
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* INTERNAL:
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* populateRelated
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|
*
|
|
* @param string $name
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* @param Doctrine_Collection $coll
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* @return void
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*/
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public function populateRelated($name, Doctrine_Collection $coll)
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{
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$rel = $this->_mapper->getTable()->getRelation($name);
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$table = $rel->getTable();
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$foreign = $rel->getForeign();
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$local = $rel->getLocal();
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if ($rel instanceof Doctrine_Relation_LocalKey) {
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foreach ($this->_data as $key => $record) {
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foreach ($coll as $k => $related) {
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if ($related[$foreign] == $record[$local]) {
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$this->_data[$key]->_setRelated($name, $related);
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}
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}
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}
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} else if ($rel instanceof Doctrine_Relation_ForeignKey) {
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foreach ($this->_data as $key => $record) {
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if ( ! $record->exists()) {
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continue;
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}
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$sub = new Doctrine_Collection($rel->getForeignComponentName());
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foreach ($coll as $k => $related) {
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if ($related[$foreign] == $record[$local]) {
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$sub->add($related);
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$coll->remove($k);
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}
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}
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$this->_data[$key]->_setRelated($name, $sub);
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}
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} else if ($rel instanceof Doctrine_Relation_Association) {
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// @TODO composite key support
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$identifier = (array)$this->_mapper->getClassMetadata()->getIdentifier();
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$asf = $rel->getAssociationFactory();
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$name = $table->getComponentName();
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|
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|
foreach ($this->_data as $key => $record) {
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if ( ! $record->exists()) {
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continue;
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}
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|
$sub = new Doctrine_Collection($rel->getForeignComponentName());
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|
foreach ($coll as $k => $related) {
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$idField = $identifier[0];
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if ($related->get($local) == $record[$idField]) {
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$sub->add($related->get($name));
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}
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}
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$this->_data[$key]->_setRelated($name, $sub);
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}
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}
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}
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|
|
/**
|
|
* getNormalIterator
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|
* returns normal iterator - an iterator that will not expand this collection
|
|
*
|
|
* @return Doctrine_Iterator_Normal
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|
*/
|
|
public function getNormalIterator()
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|
{
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return new Doctrine_Collection_Iterator_Normal($this);
|
|
}
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|
|
|
/**
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|
* takeSnapshot
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|
* takes a snapshot from this collection
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|
*
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|
* snapshots are used for diff processing, for example
|
|
* when a fetched collection has three elements, then two of those
|
|
* are being removed the diff would contain one element
|
|
*
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|
* Doctrine_Collection::save() attaches the diff with the help of last
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* snapshot.
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|
*
|
|
* @return Doctrine_Collection
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|
*/
|
|
public function takeSnapshot()
|
|
{
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|
$this->_snapshot = $this->_data;
|
|
return $this;
|
|
}
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|
|
|
/**
|
|
* getSnapshot
|
|
* returns the data of the last snapshot
|
|
*
|
|
* @return array returns the data in last snapshot
|
|
*/
|
|
public function getSnapshot()
|
|
{
|
|
return $this->_snapshot;
|
|
}
|
|
|
|
/**
|
|
* processDiff
|
|
* processes the difference of the last snapshot and the current data
|
|
*
|
|
* an example:
|
|
* Snapshot with the objects 1, 2 and 4
|
|
* Current data with objects 2, 3 and 5
|
|
*
|
|
* The process would remove objects 1 and 4
|
|
*
|
|
* @return Doctrine_Collection
|
|
*/
|
|
public function processDiff()
|
|
{
|
|
foreach (array_udiff($this->_snapshot, $this->_data, array($this, "_compareRecords")) as $record) {
|
|
$record->delete();
|
|
}
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* toArray
|
|
* Mimics the result of a $query->execute(array(), Doctrine::FETCH_ARRAY);
|
|
*
|
|
* @param boolean $deep
|
|
*/
|
|
public function toArray($deep = false, $prefixKey = false)
|
|
{
|
|
$data = array();
|
|
foreach ($this as $key => $record) {
|
|
$key = $prefixKey ? get_class($record) . '_' .$key:$key;
|
|
$data[$key] = $record->toArray($deep, $prefixKey);
|
|
}
|
|
|
|
return $data;
|
|
}
|
|
|
|
public function isEmpty()
|
|
{
|
|
return $this->count() == 0;
|
|
}
|
|
|
|
/**
|
|
* fromArray
|
|
*
|
|
* Populate a Doctrine_Collection from an array of data
|
|
*
|
|
* @param string $array
|
|
* @return void
|
|
*/
|
|
public function fromArray($array, $deep = true)
|
|
{
|
|
$data = array();
|
|
foreach ($array as $rowKey => $row) {
|
|
$this[$rowKey]->fromArray($row, $deep);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* synchronizeFromArray
|
|
* synchronizes a Doctrine_Collection with data from an array
|
|
*
|
|
* it expects an array representation of a Doctrine_Collection similar to the return
|
|
* value of the toArray() method. It will create Dectrine_Records that don't exist
|
|
* on the collection, update the ones that do and remove the ones missing in the $array
|
|
*
|
|
* @param array $array representation of a Doctrine_Collection
|
|
*/
|
|
public function synchronizeFromArray(array $array)
|
|
{
|
|
foreach ($this as $key => $record) {
|
|
if (isset($array[$key])) {
|
|
$record->synchronizeFromArray($array[$key]);
|
|
unset($array[$key]);
|
|
} else {
|
|
// remove records that don't exist in the array
|
|
$this->remove($key);
|
|
}
|
|
}
|
|
|
|
// create new records for each new row in the array
|
|
foreach ($array as $rowKey => $row) {
|
|
$this[$rowKey]->fromArray($row);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* exportTo
|
|
*
|
|
* Export a Doctrine_Collection to one of the supported Doctrine_Parser formats
|
|
*
|
|
* @param string $type
|
|
* @param string $deep
|
|
* @return void
|
|
* @todo Move elsewhere.
|
|
*/
|
|
public function exportTo($type, $deep = false)
|
|
{
|
|
if ($type == 'array') {
|
|
return $this->toArray($deep);
|
|
} else {
|
|
return Doctrine_Parser::dump($this->toArray($deep, true), $type);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* importFrom
|
|
*
|
|
* Import data to a Doctrine_Collection from one of the supported Doctrine_Parser formats
|
|
*
|
|
* @param string $type
|
|
* @param string $data
|
|
* @return void
|
|
* @todo Move elsewhere.
|
|
*/
|
|
public function importFrom($type, $data)
|
|
{
|
|
if ($type == 'array') {
|
|
return $this->fromArray($data);
|
|
} else {
|
|
return $this->fromArray(Doctrine_Parser::load($data, $type));
|
|
}
|
|
}
|
|
|
|
/**
|
|
* getDeleteDiff
|
|
*
|
|
* @return void
|
|
*/
|
|
public function getDeleteDiff()
|
|
{
|
|
return array_udiff($this->_snapshot, $this->_data, array($this, "_compareRecords"));
|
|
}
|
|
|
|
/**
|
|
* getInsertDiff
|
|
*
|
|
* @return void
|
|
*/
|
|
public function getInsertDiff()
|
|
{
|
|
return array_udiff($this->_data, $this->_snapshot, array($this, "_compareRecords"));
|
|
}
|
|
|
|
/**
|
|
* _compareRecords
|
|
* Compares two records. To be used on _snapshot diffs using array_udiff.
|
|
*/
|
|
protected function _compareRecords($a, $b)
|
|
{
|
|
if ($a->getOid() == $b->getOid()) {
|
|
return 0;
|
|
}
|
|
|
|
return ($a->getOid() > $b->getOid()) ? 1 : -1;
|
|
}
|
|
|
|
/**
|
|
* Saves all records of this collection and processes the
|
|
* difference of the last snapshot and the current data.
|
|
*
|
|
* @param Doctrine_Connection $conn optional connection parameter
|
|
* @return Doctrine_Collection
|
|
*/
|
|
public function save()
|
|
{
|
|
$conn = $this->_mapper->getConnection();
|
|
|
|
try {
|
|
$conn->beginInternalTransaction();
|
|
|
|
$conn->transaction->addCollection($this);
|
|
$this->processDiff();
|
|
foreach ($this->getData() as $key => $record) {
|
|
$record->save($conn);
|
|
}
|
|
|
|
$conn->commit();
|
|
} catch (Exception $e) {
|
|
$conn->rollback();
|
|
throw $e;
|
|
}
|
|
|
|
return $this;
|
|
}
|
|
|
|
/**
|
|
* Deletes all records from the collection.
|
|
*
|
|
* @return void
|
|
*/
|
|
public function delete($clearColl = false)
|
|
{
|
|
$conn = $this->_mapper->getConnection();
|
|
|
|
try {
|
|
$conn->beginInternalTransaction();
|
|
|
|
$conn->transaction->addCollection($this);
|
|
foreach ($this as $key => $record) {
|
|
$record->delete($conn);
|
|
}
|
|
|
|
$conn->commit();
|
|
} catch (Exception $e) {
|
|
$conn->rollback();
|
|
throw $e;
|
|
}
|
|
|
|
if ($clearColl) {
|
|
$this->clear();
|
|
}
|
|
}
|
|
|
|
|
|
public function free($deep = false)
|
|
{
|
|
foreach ($this->getData() as $key => $record) {
|
|
if ( ! ($record instanceof Doctrine_Null)) {
|
|
$record->free($deep);
|
|
}
|
|
}
|
|
|
|
$this->_data = array();
|
|
|
|
if ($this->_owner) {
|
|
$this->_owner->free($deep);
|
|
$this->_owner = null;
|
|
}
|
|
}
|
|
|
|
|
|
/**
|
|
* getIterator
|
|
* @return object ArrayIterator
|
|
*/
|
|
public function getIterator()
|
|
{
|
|
$data = $this->_data;
|
|
return new ArrayIterator($data);
|
|
}
|
|
|
|
/**
|
|
* returns a string representation of this object
|
|
*/
|
|
public function __toString()
|
|
{
|
|
return Doctrine_Lib::getCollectionAsString($this);
|
|
}
|
|
|
|
/**
|
|
* returns the relation object
|
|
* @return object Doctrine_Relation
|
|
*/
|
|
public function getRelation()
|
|
{
|
|
return $this->relation;
|
|
}
|
|
|
|
public function clear()
|
|
{
|
|
$this->_data = array();
|
|
}
|
|
}
|