770 lines
22 KiB
PHP
770 lines
22 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.com>.
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*/
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Doctrine::autoload("Doctrine_Access");
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/**
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* Doctrine_Collection
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* Collection of Doctrine_Record objects.
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*
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* @package Doctrine
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
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* @category Object Relational Mapping
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* @link www.phpdoctrine.com
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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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/**
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* @var array $data an array containing the data access objects of this collection
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*/
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protected $data = array();
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/**
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* @var Doctrine_Table $table each collection has only records of specified table
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*/
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protected $table;
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/**
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* @var Doctrine_Record $reference collection can belong to a record
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*/
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protected $reference;
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/**
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* @var string $reference_field the reference field of the collection
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*/
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protected $reference_field;
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/**
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* @var Doctrine_Relation the record this collection is related to, if any
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*/
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protected $relation;
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/**
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* @var boolean $expandable whether or not this collection has been expanded
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*/
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protected $expandable = true;
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/**
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* @var array $expanded
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*/
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protected $expanded = array();
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/**
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* @var string $keyColumn the name of the column that is used for collection key mapping
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*/
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protected $keyColumn;
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/**
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* @var Doctrine_Null $null used for extremely fast null value testing
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*/
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protected static $null;
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protected $aggregateValues = array();
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/**
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* constructor
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*
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* @param Doctrine_Table|string $table
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*/
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public function __construct($table)
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{
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if ( ! ($table instanceof Doctrine_Table)) {
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$table = Doctrine_Manager::getInstance()
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->getCurrentConnection()
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->getTable($table);
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}
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$this->table = $table;
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$name = $table->getAttribute(Doctrine::ATTR_COLL_KEY);
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if ($name !== null) {
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$this->keyColumn = $name;
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}
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}
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/**
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* initNullObject
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* initializes the null object for this collection
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*
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* @return void
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*/
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public static function initNullObject(Doctrine_Null $null)
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{
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self::$null = $null;
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}
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/**
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* getTable
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* returns the table this collection belongs to
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*
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* @return Doctrine_Table
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*/
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public function getTable()
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{
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return $this->table;
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}
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/**
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* setAggregateValue
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*
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* @param string $name
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* @param string $value
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* @return void
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*/
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public function setAggregateValue($name, $value)
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{
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$this->aggregateValues[$name] = $value;
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}
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/**
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* getAggregateValue
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*
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* @param string $name
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* @return mixed
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*/
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public function getAggregateValue($name)
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{
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return $this->aggregateValues[$name];
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}
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/**
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* this method is automatically called when this Doctrine_Collection is serialized
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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['reference_field']);
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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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$vars['table'] = $vars['table']->getComponentName();
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return serialize($vars);
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}
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/**
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* unseralize
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* this method is automatically called everytime a Doctrine_Collection object is unserialized
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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_Manager::getInstance();
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$connection = $manager->getCurrentConnection();
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$array = unserialize($serialized);
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foreach ($array as $name => $values) {
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$this->$name = $values;
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}
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$this->table = $connection->getTable($this->table);
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$this->expanded = array();
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$this->expandable = true;
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$name = $this->table->getAttribute(Doctrine::ATTR_COLL_KEY);
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if ($name !== null) {
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$this->keyColumn = $name;
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}
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}
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/**
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* isExpanded
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*
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* whether or not an offset batch has been expanded
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* @return boolean
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*/
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public function isExpanded($offset)
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{
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return isset($this->expanded[$offset]);
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}
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/**
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* isExpandable
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*
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* whether or not this collection is expandable
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* @return boolean
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*/
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public function isExpandable()
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{
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return $this->expandable;
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}
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/**
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* setKeyColumn
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*
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* @param string $column
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* @return void
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*/
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public function setKeyColumn($column)
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{
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$this->keyColumn = $column;
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}
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/**
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* getKeyColumn
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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 getKeyColumn()
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{
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return $this->column;
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}
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/**
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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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* @param array $data
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*/
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public function addData(array $data)
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{
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$this->data[] = $data;
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}
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/**
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* getFirst
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* returns the first record in the collection
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*
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* @return mixed
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*/
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public function getFirst()
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{
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return reset($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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* setReference
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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_Record $record,Doctrine_Relation $relation)
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{
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$this->reference = $record;
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$this->relation = $relation;
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if ($relation instanceof Doctrine_Relation_ForeignKey
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|| $relation instanceof Doctrine_Relation_LocalKey
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) {
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$this->reference_field = $relation->getForeign();
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$value = $record->get($relation->getLocal());
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foreach ($this->getNormalIterator() as $record) {
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if ($value !== null) {
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$record->set($this->reference_field, $value, false);
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} else {
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$record->set($this->reference_field, $this->reference, false);
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}
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}
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} elseif ($relation instanceof Doctrine_Relation_Association) {
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}
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}
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/**
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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 $this->reference;
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}
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/**
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* expand
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* expands the collection
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*
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* @return boolean
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*/
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public function expand($key)
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{
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$where = array();
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$params = array();
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$limit = null;
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$offset = null;
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switch (get_class($this)) {
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case "Doctrine_Collection_Offset":
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$limit = $this->getLimit();
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$offset = (floor($key / $limit) * $limit);
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if ( ! $this->expandable && isset($this->expanded[$offset])) {
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return false;
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}
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$fields = implode(", ",$this->table->getColumnNames());
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break;
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default:
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if ( ! $this->expandable) {
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return false;
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}
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if ( ! isset($this->reference)) {
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return false;
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}
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$id = $this->reference->obtainIdentifier();
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if (empty($id)) {
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return false;
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}
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switch (get_class($this)) {
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case "Doctrine_Collection_Immediate":
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$fields = implode(", ",$this->table->getColumnNames());
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break;
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default:
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$fields = implode(", ",$this->table->getPrimaryKeys());
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};
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};
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if (isset($this->relation)) {
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if ($this->relation instanceof Doctrine_Relation_ForeignKey) {
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$params[] = $this->reference->getIncremented();
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$where[] = $this->reference_field." = ?";
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if ( ! isset($offset)) {
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$ids = $this->getPrimaryKeys();
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if ( ! empty($ids)) {
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$where[] = $this->table->getIdentifier()." NOT IN (".substr(str_repeat("?, ",count($ids)),0,-2).")";
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$params = array_merge($params,$ids);
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}
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$this->expandable = false;
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}
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} elseif ($this->relation instanceof Doctrine_Relation_Association) {
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$asf = $this->relation->getAssociationFactory();
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$query = 'SELECT '.$foreign." FROM ".$asf->getTableName()." WHERE ".$local."=".$this->getIncremented();
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$table = $fk->getTable();
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$graph = new Doctrine_Query($table->getConnection());
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$q = 'FROM ' . $table->getComponentName() . ' WHERE ' . $table->getComponentName() . '.' . $table->getIdentifier()." IN ($query)";
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}
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}
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$query = "SELECT ".$fields." FROM ".$this->table->getTableName();
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// apply column aggregation inheritance
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foreach ($this->table->getInheritanceMap() as $k => $v) {
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$where[] = $k." = ?";
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$params[] = $v;
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}
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if ( ! empty($where)) {
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$query .= " WHERE ".implode(" AND ",$where);
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}
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$coll = $this->table->execute($query, $params, $limit, $offset);
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if ( ! isset($offset)) {
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foreach ($coll as $record) {
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if (isset($this->reference_field)) {
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$record->set($this->reference_field,$this->reference, false);
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}
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$this->reference->addReference($record, $this->relation);
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}
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} else {
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$i = $offset;
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foreach ($coll as $record) {
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if (isset($this->reference)) {
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$this->reference->addReference($record, $this->relation, $i);
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} else {
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$this->data[$i] = $record;
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}
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$i++;
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}
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$this->expanded[$offset] = true;
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// check if the fetched collection's record count is smaller
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// than the query limit, if so this collection has been expanded to its max size
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if (count($coll) < $limit) {
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$this->expandable = false;
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}
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}
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return $coll;
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}
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/**
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* remove
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* removes a specified collection element
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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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if ( ! isset($this->data[$key])) {
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$this->expand($key);
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throw new Doctrine_Collection_Exception('Unknown key ' . $key);
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}
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$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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* contains
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* whether or not this collection contains a specified element
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*
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* @param mixed $key the key of the element
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* @return boolean
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*/
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public function contains($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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* get
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* returns a record for given key
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*
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* There are two special cases:
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*
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* 1. if null is given as a key a new record is created and attached
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* at the end of the collection
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*
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* 2. if given key does not exist, then a new record is create and attached
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* to the 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 $key the key of the element
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* @return Doctrine_Record return a specified record
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*/
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public function get($key)
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{
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if($key === null) {
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$record = $this->table->create();
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if (isset($this->reference_field)) {
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$record->set($this->reference_field, $this->reference, false);
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}
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$this->data[] = $record;
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return $record;
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}
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if ( ! isset($this->data[$key])) {
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$this->expand($key);
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if ( ! isset($this->data[$key])) {
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$this->data[$key] = $this->table->create();
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}
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if (isset($this->reference_field)) {
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$value = $this->reference->get($this->relation->getLocal());
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if ($value !== null) {
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$this->data[$key]->set($this->reference_field, $value, false);
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} else {
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$this->data[$key]->set($this->reference_field, $this->reference, false);
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}
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}
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}
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return $this->data[$key];
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}
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/**
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* @return array an array containing all primary keys
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*/
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public function getPrimaryKeys()
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{
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$list = array();
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$name = $this->table->getIdentifier();
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foreach ($this->data as $record) {
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if (is_array($record) && isset($record[$name])) {
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$list[] = $record[$name];
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} else {
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$list[] = $record->getIncremented();
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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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* count
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* this class implements interface countable
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* returns the number of records in this collection
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*
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* @return integer
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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_Record $record
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* @return void
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*/
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public function set($key, Doctrine_Record $record)
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{
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if (isset($this->reference_field)) {
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$record->set($this->reference_field, $this->reference, false);
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}
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$this->data[$key] = $record;
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}
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/**
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* adds a record to collection
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* @param Doctrine_Record $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(Doctrine_Record $record,$key = null)
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{
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if (isset($this->reference_field)) {
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$record->set($this->reference_field, $this->reference, false);
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}
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/**
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* for some weird reason in_array cannot be used here (php bug ?)
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*
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* if used it results in fatal error : [ nesting level too deep ]
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*/
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foreach ($this->data as $val) {
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if ($val === $record) {
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return false;
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}
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}
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if (isset($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] = $record;
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return true;
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}
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if (isset($this->keyColumn)) {
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$value = $record->get($this->keyColumn);
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if ($value === null) {
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throw new Doctrine_Collection_Exception("Couldn't create collection index. Record field '".$this->keyColumn."' was null.");
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}
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$this->data[$value] = $record;
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} else {
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$this->data[] = $record;
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}
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return true;
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}
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/**
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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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$query = new Doctrine_Query($this->table->getConnection());
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|
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if ( ! isset($name)) {
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foreach ($this->data as $record) {
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$value = $record->getIncremented();
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if ($value !== null) {
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$list[] = $value;
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}
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};
|
|
$query->from($this->table->getComponentName()."(".implode(", ",$this->table->getPrimaryKeys()).")");
|
|
$query->where($this->table->getComponentName().".id IN (".substr(str_repeat("?, ", count($list)),0,-2).")");
|
|
|
|
return $query;
|
|
}
|
|
|
|
$rel = $this->table->getRelation($name);
|
|
$table = $rel->getTable();
|
|
$foreign = $rel->getForeign();
|
|
$local = $rel->getLocal();
|
|
|
|
$list = array();
|
|
if ($rel instanceof Doctrine_Relation_LocalKey || $rel instanceof Doctrine_Relation_ForeignKey) {
|
|
foreach ($this->data as $record) {
|
|
$list[] = $record[$local];
|
|
};
|
|
} else {
|
|
foreach ($this->data as $record) {
|
|
$value = $record->getIncremented();
|
|
if ($value !== null) {
|
|
$list[] = $value;
|
|
}
|
|
};
|
|
}
|
|
$this->table->getRelation($name);
|
|
$dql = $rel->getRelationDql(count($list), 'collection');
|
|
|
|
$coll = $query->query($dql, $list);
|
|
|
|
$this->populateRelated($name, $coll);
|
|
}
|
|
/**
|
|
* populateRelated
|
|
*
|
|
* @param string $name
|
|
* @param Doctrine_Collection $coll
|
|
* @return void
|
|
*/
|
|
public function populateRelated($name, Doctrine_Collection $coll)
|
|
{
|
|
$rel = $this->table->getRelation($name);
|
|
$table = $rel->getTable();
|
|
$foreign = $rel->getForeign();
|
|
$local = $rel->getLocal();
|
|
|
|
if ($rel instanceof Doctrine_Relation_LocalKey) {
|
|
foreach ($this->data as $key => $record) {
|
|
foreach ($coll as $k => $related) {
|
|
if ($related[$foreign] == $record[$local]) {
|
|
$this->data[$key]->setRelated($name, $related);
|
|
}
|
|
}
|
|
}
|
|
} elseif ($rel instanceof Doctrine_Relation_ForeignKey) {
|
|
foreach ($this->data as $key => $record) {
|
|
if ($record->getState() == Doctrine_Record::STATE_TCLEAN
|
|
|| $record->getState() == Doctrine_Record::STATE_TDIRTY
|
|
) {
|
|
continue;
|
|
}
|
|
$sub = new Doctrine_Collection($table);
|
|
|
|
foreach ($coll as $k => $related) {
|
|
if ($related[$foreign] == $record[$local]) {
|
|
$sub->add($related);
|
|
$coll->remove($k);
|
|
}
|
|
}
|
|
|
|
$this->data[$key]->setRelated($name, $sub);
|
|
}
|
|
} elseif ($rel instanceof Doctrine_Relation_Association) {
|
|
$identifier = $this->table->getIdentifier();
|
|
$asf = $rel->getAssociationFactory();
|
|
$name = $table->getComponentName();
|
|
|
|
foreach ($this->data as $key => $record) {
|
|
if ($record->getState() == Doctrine_Record::STATE_TCLEAN
|
|
|| $record->getState() == Doctrine_Record::STATE_TDIRTY
|
|
) {
|
|
continue;
|
|
}
|
|
$sub = new Doctrine_Collection($table);
|
|
foreach ($coll as $k => $related) {
|
|
if ($related->get($local) == $record[$identifier]) {
|
|
$sub->add($related->get($name));
|
|
}
|
|
}
|
|
$this->data[$key]->setRelated($name, $sub);
|
|
|
|
}
|
|
}
|
|
}
|
|
/**
|
|
* getNormalIterator
|
|
* returns normal iterator - an iterator that will not expand this collection
|
|
*
|
|
* @return Doctrine_Iterator_Normal
|
|
*/
|
|
public function getNormalIterator()
|
|
{
|
|
return new Doctrine_Collection_Iterator_Normal($this);
|
|
}
|
|
/**
|
|
* save
|
|
* saves all records of this collection
|
|
*
|
|
* @return void
|
|
*/
|
|
public function save(Doctrine_Connection $conn = null)
|
|
{
|
|
if ($conn == null) {
|
|
$conn = $this->table->getConnection();
|
|
}
|
|
$conn->beginTransaction();
|
|
|
|
foreach ($this as $key => $record) {
|
|
$record->save();
|
|
};
|
|
|
|
$conn->commit();
|
|
}
|
|
/**
|
|
* single shot delete
|
|
* deletes all records from this collection
|
|
* and uses only one database query to perform this operation
|
|
*
|
|
* @return boolean
|
|
*/
|
|
public function delete(Doctrine_Connection $conn = null)
|
|
{
|
|
if ($conn == null) {
|
|
$conn = $this->table->getConnection();
|
|
}
|
|
|
|
$conn->beginTransaction();
|
|
|
|
foreach ($this as $key => $record) {
|
|
$record->delete();
|
|
}
|
|
|
|
$conn->commit();
|
|
|
|
$this->data = array();
|
|
}
|
|
/**
|
|
* 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);
|
|
}
|
|
}
|