779 lines
23 KiB
PHP
779 lines
23 KiB
PHP
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<?php
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/*
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* $Id: Hydrate.php 1255 2007-04-16 14:43:12Z pookey $
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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_Hydrate is a base class for Doctrine_RawSql and Doctrine_Query.
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* Its purpose is to populate object graphs.
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*
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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: 1255 $
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* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
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*/
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abstract class Doctrine_Hydrate extends Doctrine_Access
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{
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/**
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* QUERY TYPE CONSTANTS
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*/
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/**
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* constant for SELECT queries
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*/
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const SELECT = 0;
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/**
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* constant for DELETE queries
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*/
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const DELETE = 1;
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/**
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* constant for UPDATE queries
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*/
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const UPDATE = 2;
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/**
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* constant for INSERT queries
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*/
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const INSERT = 3;
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/**
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* constant for CREATE queries
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*/
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const CREATE = 4;
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/**
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* @var array $fetchmodes an array containing all fetchmodes
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*/
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protected $fetchModes = array();
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/**
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* @var array $tables an array containing all the tables used in the query
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*/
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protected $tables = array();
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/**
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* @var array $collections an array containing all collections
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* this hydrater has created/will create
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*/
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protected $collections = array();
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/**
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* @var array $joins an array containing all table joins
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*/
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protected $joins = array();
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/**
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* @var array $params query input parameters
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*/
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protected $params = array();
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/**
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* @var Doctrine_Connection $conn Doctrine_Connection object
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*/
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protected $conn;
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/**
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* @var Doctrine_View $view Doctrine_View object
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*/
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protected $view;
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/**
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* @var boolean $inheritanceApplied
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*/
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protected $inheritanceApplied = false;
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/**
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* @var boolean $aggregate
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*/
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protected $aggregate = false;
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/**
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* @var array $compAliases
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*/
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protected $compAliases = array();
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/**
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* @var array $tableAliases
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*/
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protected $tableAliases = array();
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/**
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* @var array $tableIndexes
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*/
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protected $tableIndexes = array();
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protected $pendingAggregates = array();
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protected $subqueryAggregates = array();
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/**
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* @var array $aggregateMap an array containing all aggregate aliases, keys as dql aliases
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* and values as sql aliases
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*/
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protected $aggregateMap = array();
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/**
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* @var Doctrine_Hydrate_Alias $aliasHandler
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*/
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protected $aliasHandler;
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/**
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* @var array $parts SQL query string parts
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*/
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protected $parts = array(
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'select' => array(),
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'from' => array(),
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'set' => array(),
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'join' => array(),
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'where' => array(),
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'groupby' => array(),
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'having' => array(),
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'orderby' => array(),
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'limit' => false,
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'offset' => false,
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);
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/**
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* @var integer $type the query type
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*
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* @see Doctrine_Query::* constants
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*/
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protected $type = self::SELECT;
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/**
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* constructor
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*
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* @param Doctrine_Connection|null $connection
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*/
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public function __construct($connection = null)
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{
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if ( ! ($connection instanceof Doctrine_Connection)) {
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$connection = Doctrine_Manager::getInstance()->getCurrentConnection();
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}
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$this->conn = $connection;
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$this->aliasHandler = new Doctrine_Hydrate_Alias();
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}
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/**
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* getComponentAliases
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*
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* @return array
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*/
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public function getComponentAliases()
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{
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return $this->compAliases;
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}
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/**
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* getTableAliases
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*
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* @return array
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*/
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public function getTableAliases()
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{
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return $this->tableAliases;
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}
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/**
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* getTableIndexes
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*
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* @return array
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*/
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public function getTableIndexes()
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{
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return $this->tableIndexes;
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}
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/**
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* getTables
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*
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* @return array
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*/
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public function getTables()
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{
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return $this->tables;
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}
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/**
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* copyAliases
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*
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* @return void
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*/
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public function copyAliases(Doctrine_Hydrate $query)
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{
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$this->compAliases = $query->getComponentAliases();
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$this->tableAliases = $query->getTableAliases();
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$this->tableIndexes = $query->getTableIndexes();
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$this->aliasHandler = $query->aliasHandler;
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return $this;
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}
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public function getPathAlias($path)
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{
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$s = array_search($path, $this->compAliases);
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if ($s === false)
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return $path;
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return $s;
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}
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/**
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* createSubquery
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*
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* @return Doctrine_Hydrate
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*/
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public function createSubquery()
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{
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$class = get_class($this);
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$obj = new $class();
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// copy the aliases to the subquery
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$obj->copyAliases($this);
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// this prevents the 'id' being selected, re ticket #307
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$obj->isSubquery(true);
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return $obj;
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}
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/**
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* getQuery
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*
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* @return string
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*/
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abstract public function getQuery();
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/**
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* limitSubqueryUsed
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*
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* @return boolean
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*/
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public function isLimitSubqueryUsed()
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{
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return false;
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}
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/**
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* remove
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*
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* @param $name
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*/
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public function remove($name)
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{
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if (isset($this->parts[$name])) {
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if ($name == "limit" || $name == "offset") {
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$this->parts[$name] = false;
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} else {
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$this->parts[$name] = array();
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}
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}
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return $this;
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}
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/**
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* clear
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* resets all the variables
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*
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* @return void
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*/
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protected function clear()
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{
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$this->fetchModes = array();
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$this->tables = array();
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$this->parts = array(
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"select" => array(),
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"from" => array(),
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"join" => array(),
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"where" => array(),
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"groupby" => array(),
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"having" => array(),
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"orderby" => array(),
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"limit" => false,
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"offset" => false,
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);
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$this->inheritanceApplied = false;
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$this->aggregate = false;
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$this->collections = array();
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$this->joins = array();
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$this->tableIndexes = array();
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$this->tableAliases = array();
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$this->aliasHandler->clear();
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}
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/**
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* getConnection
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*
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* @return Doctrine_Connection
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*/
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public function getConnection()
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{
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return $this->conn;
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}
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/**
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* setView
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* sets a database view this query object uses
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* this method should only be called internally by doctrine
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*
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* @param Doctrine_View $view database view
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* @return void
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*/
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public function setView(Doctrine_View $view)
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{
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$this->view = $view;
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}
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/**
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* getView
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* returns the view associated with this query object (if any)
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*
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* @return Doctrine_View the view associated with this query object
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*/
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public function getView()
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{
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return $this->view;
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}
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/**
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* getParams
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*
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* @return array
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*/
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public function getParams()
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{
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return $this->params;
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}
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/**
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* getTableAlias
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*
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* @param string $path
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* @return string
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*/
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final public function getTableAlias($path)
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{
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if (isset($this->compAliases[$path])) {
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$path = $this->compAliases[$path];
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}
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if ( ! isset($this->tableAliases[$path])) {
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return false;
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}
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return $this->tableAliases[$path];
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}
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/**
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* getCollection
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*
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* @parma string $name component name
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* @param integer $index
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*/
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private function getCollection($name)
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{
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$table = $this->tables[$name];
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if ( ! isset($this->fetchModes[$name])) {
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return new Doctrine_Collection($table);
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}
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switch ($this->fetchModes[$name]) {
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case Doctrine::FETCH_BATCH:
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$coll = new Doctrine_Collection_Batch($table);
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break;
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case Doctrine::FETCH_LAZY:
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$coll = new Doctrine_Collection_Lazy($table);
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break;
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case Doctrine::FETCH_OFFSET:
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$coll = new Doctrine_Collection_Offset($table);
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break;
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case Doctrine::FETCH_IMMEDIATE:
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$coll = new Doctrine_Collection_Immediate($table);
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break;
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case Doctrine::FETCH_LAZY_OFFSET:
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$coll = new Doctrine_Collection_LazyOffset($table);
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break;
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default:
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throw new Doctrine_Exception("Unknown fetchmode");
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};
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return $coll;
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}
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/**
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* setParams
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*
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* @param array $params
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*/
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public function setParams(array $params = array()) {
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$this->params = $params;
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}
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/**
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* execute
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* executes the dql query and populates all collections
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*
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* @param string $params
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* @return Doctrine_Collection the root collection
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*/
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public function execute($params = array(), $return = Doctrine::FETCH_RECORD) {
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$this->collections = array();
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$params = $this->conn->convertBooleans(array_merge($this->params, $params));
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if ( ! $this->view) {
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$query = $this->getQuery($params);
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} else {
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$query = $this->view->getSelectSql();
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}
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if ($this->isLimitSubqueryUsed() &&
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$this->conn->getDBH()->getAttribute(Doctrine::ATTR_DRIVER_NAME) !== 'mysql') {
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$params = array_merge($params, $params);
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}
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$stmt = $this->conn->execute($query, $params);
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if ($this->aggregate) {
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return $stmt->fetchAll(Doctrine::FETCH_ASSOC);
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}
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if (count($this->tables) == 0) {
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throw new Doctrine_Query_Exception('No components selected');
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}
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$keys = array_keys($this->tables);
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$root = $keys[0];
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$previd = array();
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$coll = $this->getCollection($root);
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$prev[$root] = $coll;
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if ($this->aggregate) {
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$return = Doctrine::FETCH_ARRAY;
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}
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$array = $this->parseData($stmt);
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if ($return == Doctrine::FETCH_ARRAY) {
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return $array;
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}
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foreach ($array as $data) {
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/**
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* remove duplicated data rows and map data into objects
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*/
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foreach ($data as $key => $row) {
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if (empty($row)) {
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continue;
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}
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//$key = array_search($key, $this->shortAliases);
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foreach ($this->tables as $k => $t) {
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if ( ! strcasecmp($key, $k)) {
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$key = $k;
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}
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}
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if ( !isset($this->tables[$key]) ) {
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throw new Doctrine_Exception('No table named ' . $key . ' found.');
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}
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$ids = $this->tables[$key]->getIdentifier();
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$name = $key;
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if ($this->isIdentifiable($row, $ids)) {
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if ($name !== $root) {
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$prev = $this->initRelated($prev, $name);
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}
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// aggregate values have numeric keys
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if (isset($row[0])) {
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$component = $this->tables[$name]->getComponentName();
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// if the collection already has objects, get the last object
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// otherwise create a new one where the aggregate values are being mapped
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if ($prev[$name]->count() > 0) {
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$record = $prev[$name]->getLast();
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} else {
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$record = new $component();
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$prev[$name]->add($record);
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}
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$path = array_search($name, $this->tableAliases);
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$alias = $this->getPathAlias($path);
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// map each aggregate value
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foreach ($row as $index => $value) {
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$agg = false;
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if (isset($this->pendingAggregates[$alias][$index])) {
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$agg = $this->pendingAggregates[$alias][$index][3];
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} elseif (isset($this->subqueryAggregates[$alias][$index])) {
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$agg = $this->subqueryAggregates[$alias][$index];
|
||
|
}
|
||
|
|
||
|
$record->mapValue($agg, $value);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
continue;
|
||
|
|
||
|
}
|
||
|
|
||
|
if ( ! isset($previd[$name])) {
|
||
|
$previd[$name] = array();
|
||
|
}
|
||
|
if ($previd[$name] !== $row) {
|
||
|
// set internal data
|
||
|
|
||
|
$this->tables[$name]->setData($row);
|
||
|
|
||
|
// initialize a new record
|
||
|
|
||
|
$record = $this->tables[$name]->getRecord();
|
||
|
|
||
|
// aggregate values have numeric keys
|
||
|
if (isset($row[0])) {
|
||
|
$path = array_search($name, $this->tableAliases);
|
||
|
$alias = $this->getPathAlias($path);
|
||
|
|
||
|
// map each aggregate value
|
||
|
foreach ($row as $index => $value) {
|
||
|
$agg = false;
|
||
|
|
||
|
if (isset($this->pendingAggregates[$alias][$index])) {
|
||
|
$agg = $this->pendingAggregates[$alias][$index][3];
|
||
|
} elseif (isset($this->subqueryAggregates[$alias][$index])) {
|
||
|
$agg = $this->subqueryAggregates[$alias][$index];
|
||
|
}
|
||
|
$record->mapValue($agg, $value);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ($name == $root) {
|
||
|
// add record into root collection
|
||
|
|
||
|
$coll->add($record);
|
||
|
unset($previd);
|
||
|
|
||
|
} else {
|
||
|
$prev = $this->addRelated($prev, $name, $record);
|
||
|
}
|
||
|
|
||
|
// following statement is needed to ensure that mappings
|
||
|
// are being done properly when the result set doesn't
|
||
|
// contain the rows in 'right order'
|
||
|
|
||
|
if ($prev[$name] !== $record) {
|
||
|
$prev[$name] = $record;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
$previd[$name] = $row;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $coll;
|
||
|
}
|
||
|
/**
|
||
|
* initRelation
|
||
|
*
|
||
|
* @param array $prev
|
||
|
* @param string $name
|
||
|
* @return array
|
||
|
*/
|
||
|
public function initRelated(array $prev, $name)
|
||
|
{
|
||
|
$pointer = $this->joins[$name];
|
||
|
$path = array_search($name, $this->tableAliases);
|
||
|
$tmp = explode('.', $path);
|
||
|
$alias = end($tmp);
|
||
|
|
||
|
if ( ! isset($prev[$pointer]) ) {
|
||
|
return $prev;
|
||
|
}
|
||
|
$fk = $this->tables[$pointer]->getRelation($alias);
|
||
|
|
||
|
if ( ! $fk->isOneToOne()) {
|
||
|
if ($prev[$pointer]->getLast() instanceof Doctrine_Record) {
|
||
|
if ( ! $prev[$pointer]->getLast()->hasReference($alias)) {
|
||
|
$prev[$name] = $this->getCollection($name);
|
||
|
$prev[$pointer]->getLast()->initReference($prev[$name],$fk);
|
||
|
} else {
|
||
|
$prev[$name] = $prev[$pointer]->getLast()->get($alias);
|
||
|
}
|
||
|
}
|
||
|
}
|
||
|
|
||
|
return $prev;
|
||
|
}
|
||
|
/**
|
||
|
* addRelated
|
||
|
*
|
||
|
* @param array $prev
|
||
|
* @param string $name
|
||
|
* @return array
|
||
|
*/
|
||
|
public function addRelated(array $prev, $name, Doctrine_Record $record)
|
||
|
{
|
||
|
$pointer = $this->joins[$name];
|
||
|
|
||
|
$path = array_search($name, $this->tableAliases);
|
||
|
$tmp = explode('.', $path);
|
||
|
$alias = end($tmp);
|
||
|
|
||
|
$fk = $this->tables[$pointer]->getRelation($alias);
|
||
|
|
||
|
if ($fk->isOneToOne()) {
|
||
|
$prev[$pointer]->getLast()->set($fk->getAlias(), $record);
|
||
|
|
||
|
$prev[$name] = $record;
|
||
|
} else {
|
||
|
// one-to-many relation or many-to-many relation
|
||
|
|
||
|
if ( ! $prev[$pointer]->getLast()->hasReference($alias)) {
|
||
|
$prev[$name] = $this->getCollection($name);
|
||
|
$prev[$pointer]->getLast()->initReference($prev[$name], $fk);
|
||
|
|
||
|
} else {
|
||
|
// previous entry found from memory
|
||
|
$prev[$name] = $prev[$pointer]->getLast()->get($alias);
|
||
|
}
|
||
|
|
||
|
$prev[$pointer]->getLast()->addReference($record, $fk);
|
||
|
}
|
||
|
return $prev;
|
||
|
}
|
||
|
/**
|
||
|
* isIdentifiable
|
||
|
* returns whether or not a given data row is identifiable (it contains
|
||
|
* all id fields specified in the second argument)
|
||
|
*
|
||
|
* @param array $row
|
||
|
* @param mixed $ids
|
||
|
* @return boolean
|
||
|
*/
|
||
|
public function isIdentifiable(array $row, $ids)
|
||
|
{
|
||
|
if (is_array($ids)) {
|
||
|
foreach ($ids as $id) {
|
||
|
if ($row[$id] == null)
|
||
|
return true;
|
||
|
}
|
||
|
} else {
|
||
|
if ( ! isset($row[$ids])) {
|
||
|
return true;
|
||
|
}
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
/**
|
||
|
* getType
|
||
|
*
|
||
|
* returns the type of this query object
|
||
|
* by default the type is Doctrine_Hydrate::SELECT but if update() or delete()
|
||
|
* are being called the type is Doctrine_Hydrate::UPDATE and Doctrine_Hydrate::DELETE,
|
||
|
* respectively
|
||
|
*
|
||
|
* @see Doctrine_Hydrate::SELECT
|
||
|
* @see Doctrine_Hydrate::UPDATE
|
||
|
* @see Doctrine_Hydrate::DELETE
|
||
|
*
|
||
|
* @return integer return the query type
|
||
|
*/
|
||
|
public function getType()
|
||
|
{
|
||
|
return $this->type;
|
||
|
}
|
||
|
/**
|
||
|
* applyInheritance
|
||
|
* applies column aggregation inheritance to DQL / SQL query
|
||
|
*
|
||
|
* @return string
|
||
|
*/
|
||
|
public function applyInheritance()
|
||
|
{
|
||
|
// get the inheritance maps
|
||
|
$array = array();
|
||
|
|
||
|
foreach ($this->tables as $alias => $table) {
|
||
|
$array[$alias][] = $table->inheritanceMap;
|
||
|
}
|
||
|
|
||
|
// apply inheritance maps
|
||
|
$str = "";
|
||
|
$c = array();
|
||
|
|
||
|
$index = 0;
|
||
|
foreach ($array as $tableAlias => $maps) {
|
||
|
$a = array();
|
||
|
|
||
|
// don't use table aliases if the query isn't a select query
|
||
|
if ($this->type !== Doctrine_Query::SELECT) {
|
||
|
$tableAlias = '';
|
||
|
} else {
|
||
|
$tableAlias .= '.';
|
||
|
}
|
||
|
|
||
|
foreach ($maps as $map) {
|
||
|
$b = array();
|
||
|
foreach ($map as $field => $value) {
|
||
|
if ($index > 0) {
|
||
|
$b[] = '(' . $tableAlias . $field . ' = ' . $value
|
||
|
. ' OR ' . $tableAlias . $field . ' IS NULL)';
|
||
|
} else {
|
||
|
$b[] = $tableAlias . $field . ' = ' . $value;
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( ! empty($b)) {
|
||
|
$a[] = implode(' AND ', $b);
|
||
|
}
|
||
|
}
|
||
|
|
||
|
if ( ! empty($a)) {
|
||
|
$c[] = implode(' AND ', $a);
|
||
|
}
|
||
|
$index++;
|
||
|
}
|
||
|
|
||
|
$str .= implode(' AND ', $c);
|
||
|
|
||
|
return $str;
|
||
|
}
|
||
|
/**
|
||
|
* parseData
|
||
|
* parses the data returned by statement object
|
||
|
*
|
||
|
* @param mixed $stmt
|
||
|
* @return array
|
||
|
*/
|
||
|
public function parseData($stmt)
|
||
|
{
|
||
|
$array = array();
|
||
|
|
||
|
while ($data = $stmt->fetch(PDO::FETCH_ASSOC)) {
|
||
|
/**
|
||
|
* parse the data into two-dimensional array
|
||
|
*/
|
||
|
foreach ($data as $key => $value) {
|
||
|
$e = explode('__', $key);
|
||
|
|
||
|
$field = strtolower(array_pop($e));
|
||
|
$component = strtolower(implode('__', $e));
|
||
|
|
||
|
$data[$component][$field] = $value;
|
||
|
|
||
|
unset($data[$key]);
|
||
|
};
|
||
|
$array[] = $data;
|
||
|
};
|
||
|
|
||
|
$stmt->closeCursor();
|
||
|
return $array;
|
||
|
}
|
||
|
/**
|
||
|
* returns a Doctrine_Table for given name
|
||
|
*
|
||
|
* @param string $name component name
|
||
|
* @return Doctrine_Table|boolean
|
||
|
*/
|
||
|
public function getTable($name)
|
||
|
{
|
||
|
if (isset($this->tables[$name])) {
|
||
|
return $this->tables[$name];
|
||
|
}
|
||
|
return false;
|
||
|
}
|
||
|
/**
|
||
|
* @return string returns a string representation of this object
|
||
|
*/
|
||
|
public function __toString()
|
||
|
{
|
||
|
return Doctrine_Lib::formatSql($this->getQuery());
|
||
|
}
|
||
|
}
|