1449 lines
47 KiB
PHP
1449 lines
47 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_Hydrate');
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/**
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* Doctrine_Query
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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_Query extends Doctrine_Hydrate implements Countable {
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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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||
* @param array $subqueryAliases the table aliases needed in some LIMIT subqueries
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||
*/
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||
private $subqueryAliases = array();
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||
/**
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||
* @param boolean $needsSubquery
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*/
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private $needsSubquery = false;
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||
/**
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||
* @param boolean $limitSubqueryUsed
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||
*/
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||
private $limitSubqueryUsed = false;
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||
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private $tableStack;
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private $relationStack = array();
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private $isDistinct = false;
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private $neededTables = array();
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/**
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||
* @var array $pendingFields
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*/
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private $pendingFields = array();
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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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* create
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* returns a new Doctrine_Query object
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*
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* @return Doctrine_Query
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*/
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public static function create()
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{
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return new Doctrine_Query();
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}
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public function getTableStack()
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{
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return $this->tableStack;
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}
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public function getRelationStack()
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{
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return $this->relationStack;
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||
}
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public function isDistinct($distinct = null)
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{
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||
if(isset($distinct))
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$this->isDistinct = (bool) $distinct;
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||
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||
return $this->isDistinct;
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||
}
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||
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||
public function processPendingFields($componentAlias)
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||
{
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||
$tableAlias = $this->getTableAlias($componentAlias);
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if( ! isset($this->tables[$tableAlias]))
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throw new Doctrine_Query_Exception('Unknown component path '.$componentPath);
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$table = $this->tables[$tableAlias];
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||
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if(isset($this->pendingFields[$componentAlias])) {
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||
$fields = $this->pendingFields[$componentAlias];
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||
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if(in_array('*', $fields))
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$fields = $table->getColumnNames();
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else
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$fields = array_unique(array_merge($table->getPrimaryKeys(), $fields));
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}
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foreach($fields as $name) {
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$this->parts["select"][] = $tableAlias . '.' .$name . ' AS ' . $tableAlias . '__' . $name;
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}
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$this->neededTables[] = $tableAlias;
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||
}
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||
public function parseSelect($dql)
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||
{
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$refs = Doctrine_Query::bracketExplode($dql, ',');
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foreach($refs as $reference) {
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if(strpos($reference, '(') !== false) {
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$this->parseAggregateFunction2($reference);
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} else {
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$e = explode('.', $reference);
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if(count($e) > 2)
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$this->pendingFields[] = $reference;
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||
else
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$this->pendingFields[$e[0]][] = $e[1];
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}
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}
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||
}
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public function parseAggregateFunction2($func)
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||
{
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||
$e = Doctrine_Query::bracketExplode($func, ' ');
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||
$func = $e[0];
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||
|
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$pos = strpos($func, '(');
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||
$name = substr($func, 0, $pos);
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||
|
||
|
||
if(method_exists($this->conn->expression, $name)) {
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||
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||
$argStr = substr($func, ($pos + 1), -1);
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||
|
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$args = explode(',', $argStr);
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||
|
||
$e2 = explode(' ', $args[0]);
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||
|
||
$distinct = '';
|
||
if(count($e2) > 1) {
|
||
if(strtoupper($e2[0]) == 'DISTINCT')
|
||
$distinct = 'DISTINCT ';
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||
|
||
$args[0] = $e2[1];
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||
}
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||
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||
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||
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$parts = explode('.', $args[0]);
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||
$owner = $parts[0];
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$alias = (isset($e[1])) ? $e[1] : $name;
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||
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||
$e3 = explode('.', $alias);
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||
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||
if(count($e3) > 1) {
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||
$alias = $e3[1];
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$owner = $e3[0];
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||
}
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$this->pendingAggregates[$owner][] = array($name, $args, $distinct, $alias);
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} else {
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throw new Doctrine_Query_Exception('Unknown aggregate function '.$name);
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||
}
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||
}
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||
public function processPendingAggregates($componentAlias)
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||
{
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||
$tableAlias = $this->getTableAlias($componentAlias);
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if( ! isset($this->tables[$tableAlias]))
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||
throw new Doctrine_Query_Exception('Unknown component path '.$componentPath);
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$table = $this->tables[$tableAlias];
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foreach($this->pendingAggregates[$componentAlias] as $parts) {
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list($name, $args, $distinct, $alias) = $parts;
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$arglist = array();
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foreach($args as $arg) {
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$e = explode('.', $arg);
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if(count($e) > 1) {
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$tableAlias = $this->getTableAlias($e[0]);
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$table = $this->tables[$tableAlias];
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if( ! $table->hasColumn($e[1])) {
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||
throw new Doctrine_Query_Exception('Unknown column ' . $e[1]);
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||
}
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$arglist[] = $tableAlias . '.' . $e[1];
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} else {
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$arglist[] = $e[0];
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}
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}
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$this->parts['select'][] = $name . '(' . $distinct . implode(', ', $arglist) . ') AS ' . $tableAlias . '__' . count($this->aggregateMap);
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$this->aggregateMap[] = $table;
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||
$this->neededTables[] = $tableAlias;
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||
}
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||
}
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||
/**
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||
* count
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||
*
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||
* @param array $params
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||
* @return integer
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||
*/
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||
public function count($params = array())
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{
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||
$this->remove('select');
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||
$join = $this->join;
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||
$where = $this->where;
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||
$having = $this->having;
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||
$table = reset($this->tables);
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||
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||
$q = 'SELECT COUNT(DISTINCT ' . $this->aliasHandler->getShortAlias($table->getTableName())
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||
. '.' . $table->getIdentifier()
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||
. ') FROM ' . $table->getTableName() . ' ' . $this->aliasHandler->getShortAlias($table->getTableName());
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foreach($join as $j) {
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$q .= ' '.implode(' ',$j);
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}
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||
$string = $this->applyInheritance();
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||
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if( ! empty($where)) {
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$q .= ' WHERE ' . implode(' AND ', $where);
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if( ! empty($string))
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$q .= ' AND (' . $string . ')';
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} else {
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if( ! empty($string))
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$q .= ' WHERE (' . $string . ')';
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||
}
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if( ! empty($having))
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$q .= ' HAVING ' . implode(' AND ',$having);
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if( ! is_array($params))
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||
$params = array($params);
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$params = array_merge($this->params, $params);
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||
$a = $this->getConnection()->execute($q, $params)->fetch(PDO::FETCH_NUM);
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return $a[0];
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||
}
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||
/**
|
||
* loadFields
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||
* loads fields for a given table and
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||
* constructs a little bit of sql for every field
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||
*
|
||
* fields of the tables become: [tablename].[fieldname] as [tablename]__[fieldname]
|
||
*
|
||
* @access private
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||
* @param object Doctrine_Table $table a Doctrine_Table object
|
||
* @param integer $fetchmode fetchmode the table is using eg. Doctrine::FETCH_LAZY
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||
* @param array $names fields to be loaded (only used in lazy property loading)
|
||
* @return void
|
||
*/
|
||
protected function loadFields(Doctrine_Table $table, $fetchmode, array $names, $cpath)
|
||
{
|
||
$name = $table->getComponentName();
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||
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||
switch($fetchmode):
|
||
case Doctrine::FETCH_OFFSET:
|
||
$this->limit = $table->getAttribute(Doctrine::ATTR_COLL_LIMIT);
|
||
case Doctrine::FETCH_IMMEDIATE:
|
||
if( ! empty($names))
|
||
$names = array_unique(array_merge($table->getPrimaryKeys(), $names));
|
||
else
|
||
$names = $table->getColumnNames();
|
||
break;
|
||
case Doctrine::FETCH_LAZY_OFFSET:
|
||
$this->limit = $table->getAttribute(Doctrine::ATTR_COLL_LIMIT);
|
||
case Doctrine::FETCH_LAZY:
|
||
case Doctrine::FETCH_BATCH:
|
||
$names = array_unique(array_merge($table->getPrimaryKeys(), $names));
|
||
break;
|
||
default:
|
||
throw new Doctrine_Exception("Unknown fetchmode.");
|
||
endswitch;
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||
|
||
$component = $table->getComponentName();
|
||
$tablename = $this->tableAliases[$cpath];
|
||
|
||
$this->fetchModes[$tablename] = $fetchmode;
|
||
|
||
$count = count($this->tables);
|
||
|
||
foreach($names as $name) {
|
||
if($count == 0) {
|
||
$this->parts['select'][] = $tablename . '.' . $name;
|
||
} else {
|
||
$this->parts['select'][] = $tablename . '.' . $name . ' AS ' . $tablename . '__' . $name;
|
||
}
|
||
}
|
||
}
|
||
/**
|
||
* addFrom
|
||
*
|
||
* @param strint $from
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function addFrom($from)
|
||
{
|
||
$class = 'Doctrine_Query_From';
|
||
$parser = new $class($this);
|
||
$parser->parse($from);
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* leftJoin
|
||
*
|
||
* @param strint $join
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function leftJoin($join)
|
||
{
|
||
$class = 'Doctrine_Query_From';
|
||
$parser = new $class($this);
|
||
$parser->parse('LEFT JOIN ' . $join);
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* innerJoin
|
||
*
|
||
* @param strint $join
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function innerJoin($join)
|
||
{
|
||
$class = 'Doctrine_Query_From';
|
||
$parser = new $class($this);
|
||
$parser->parse('INNER JOIN ' . $join);
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* addOrderBy
|
||
*
|
||
* @param strint $orderby
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function addOrderBy($orderby)
|
||
{
|
||
$class = 'Doctrine_Query_Orderby';
|
||
$parser = new $class($this);
|
||
$this->parts['orderby'][] = $parser->parse($orderby);
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* addWhere
|
||
*
|
||
* @param string $where
|
||
* @param mixed $params
|
||
*/
|
||
public function addWhere($where, $params = array())
|
||
{
|
||
$class = 'Doctrine_Query_Where';
|
||
$parser = new $class($this);
|
||
$this->parts['where'][] = $parser->parse($where);
|
||
|
||
if(is_array($params)) {
|
||
$this->params = array_merge($this->params, $params);
|
||
} else {
|
||
$this->params[] = $params;
|
||
}
|
||
}
|
||
/**
|
||
* sets a query part
|
||
*
|
||
* @param string $name
|
||
* @param array $args
|
||
* @return void
|
||
*/
|
||
public function __call($name, $args)
|
||
{
|
||
$name = strtolower($name);
|
||
|
||
$method = 'parse' . ucwords($name);
|
||
|
||
switch($name) {
|
||
case 'select':
|
||
$this->type = self::SELECT;
|
||
|
||
if( ! isset($args[0]))
|
||
throw new Doctrine_Query_Exception('Empty select part');
|
||
|
||
$this->parseSelect($args[0]);
|
||
break;
|
||
case 'delete':
|
||
$this->type = self::DELETE;
|
||
break;
|
||
case 'update':
|
||
$this->type = self::UPDATE;
|
||
$name = 'from';
|
||
case 'from':
|
||
$this->parts['from'] = array();
|
||
$this->parts['select'] = array();
|
||
$this->parts['join'] = array();
|
||
$this->joins = array();
|
||
$this->tables = array();
|
||
$this->fetchModes = array();
|
||
$this->tableIndexes = array();
|
||
$this->tableAliases = array();
|
||
$this->aliasHandler->clear();
|
||
|
||
$class = "Doctrine_Query_".ucwords($name);
|
||
$parser = new $class($this);
|
||
|
||
$parser->parse($args[0]);
|
||
break;
|
||
case 'where':
|
||
if(isset($args[1])) {
|
||
if(is_array($args[1])) {
|
||
$this->params = $args[1];
|
||
} else {
|
||
$this->params = array($args[1]);
|
||
}
|
||
}
|
||
case 'having':
|
||
case 'orderby':
|
||
case 'groupby':
|
||
$class = "Doctrine_Query_".ucwords($name);
|
||
$parser = new $class($this);
|
||
|
||
$this->parts[$name] = array($parser->parse($args[0]));
|
||
break;
|
||
case 'limit':
|
||
case 'offset':
|
||
if($args[0] == null)
|
||
$args[0] = false;
|
||
|
||
$this->parts[$name] = $args[0];
|
||
break;
|
||
default:
|
||
$this->parts[$name] = array();
|
||
$this->$method($args[0]);
|
||
|
||
throw new Doctrine_Query_Exception("Unknown overload method");
|
||
}
|
||
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* returns a query part
|
||
*
|
||
* @param $name query part name
|
||
* @return mixed
|
||
*/
|
||
public function get($name)
|
||
{
|
||
if( ! isset($this->parts[$name]))
|
||
return false;
|
||
|
||
return $this->parts[$name];
|
||
}
|
||
/**
|
||
* set
|
||
* sets a query SET part
|
||
* this method should only be used with UPDATE queries
|
||
*
|
||
* @param $name name of the field
|
||
* @param $value field value
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function set($name, $value)
|
||
{
|
||
$class = new Doctrine_Query_Set($this);
|
||
$this->parts['set'][] = $class->parse($name . ' = ' . $value);
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* @return boolean
|
||
*/
|
||
public function isLimitSubqueryUsed() {
|
||
return $this->limitSubqueryUsed;
|
||
}
|
||
/**
|
||
* getQueryBase
|
||
* returns the base of the generated sql query
|
||
* On mysql driver special strategy has to be used for DELETE statements
|
||
*
|
||
* @return string the base of the generated sql query
|
||
*/
|
||
public function getQueryBase()
|
||
{
|
||
switch($this->type) {
|
||
case self::DELETE:
|
||
if($this->conn->getName() == 'Mysql')
|
||
$q = 'DELETE '.end($this->tableAliases).' FROM ';
|
||
else
|
||
$q = 'DELETE FROM ';
|
||
break;
|
||
case self::UPDATE:
|
||
$q = 'UPDATE ';
|
||
break;
|
||
case self::SELECT:
|
||
$distinct = ($this->isDistinct()) ? 'DISTINCT ' : '';
|
||
|
||
$q = 'SELECT '.$distinct.implode(', ', $this->parts['select']).' FROM ';
|
||
break;
|
||
}
|
||
return $q;
|
||
}
|
||
/**
|
||
* builds the sql query from the given parameters and applies things such as
|
||
* column aggregation inheritance and limit subqueries if needed
|
||
*
|
||
* @param array $params an array of prepared statement params (needed only in mysql driver
|
||
* when limit subquery algorithm is used)
|
||
* @return string the built sql query
|
||
*/
|
||
public function getQuery($params = array())
|
||
{
|
||
if(empty($this->parts["select"]) || empty($this->parts["from"]))
|
||
return false;
|
||
|
||
$needsSubQuery = false;
|
||
$subquery = '';
|
||
$k = array_keys($this->tables);
|
||
$table = $this->tables[$k[0]];
|
||
|
||
if( ! empty($this->parts['limit']) && $this->needsSubquery && $table->getAttribute(Doctrine::ATTR_QUERY_LIMIT) == Doctrine::LIMIT_RECORDS) {
|
||
$needsSubQuery = true;
|
||
$this->limitSubqueryUsed = true;
|
||
}
|
||
|
||
// build the basic query
|
||
|
||
$str = '';
|
||
if($this->isDistinct())
|
||
$str = 'DISTINCT ';
|
||
|
||
$q = $this->getQueryBase();
|
||
|
||
$q .= $this->parts['from'];
|
||
/**
|
||
var_dump($this->pendingFields);
|
||
var_dump($this->subqueryAliases); */
|
||
//var_dump($this->parts['join']);
|
||
|
||
foreach($this->parts['join'] as $parts) {
|
||
foreach($parts as $part) {
|
||
// preserve LEFT JOINs only if needed
|
||
|
||
if(substr($part, 0,9) === 'LEFT JOIN') {
|
||
$e = explode(' ', $part);
|
||
|
||
$aliases = array_merge($this->subqueryAliases,
|
||
array_keys($this->neededTables));
|
||
|
||
|
||
if( ! in_array($e[3], $aliases) &&
|
||
! in_array($e[2], $aliases) &&
|
||
|
||
! empty($this->pendingFields)) {
|
||
continue;
|
||
}
|
||
|
||
}
|
||
|
||
$e = explode(' ON ', $part);
|
||
|
||
// we can always be sure that the first join condition exists
|
||
$e2 = explode(' AND ', $e[1]);
|
||
|
||
$part = $e[0] . ' ON '
|
||
. array_shift($e2);
|
||
|
||
if( ! empty($e2)) {
|
||
$parser = new Doctrine_Query_JoinCondition($this);
|
||
$part .= ' AND ' . $parser->parse(implode(' AND ', $e2));
|
||
}
|
||
|
||
$q .= ' ' . $part;
|
||
}
|
||
}
|
||
/**
|
||
if( ! empty($this->parts['join'])) {
|
||
foreach($this->parts['join'] as $part) {
|
||
$q .= ' '.implode(' ', $part);
|
||
}
|
||
}
|
||
*/
|
||
|
||
if( ! empty($this->parts['set'])) {
|
||
$q .= ' SET ' . implode(', ', $this->parts['set']);
|
||
}
|
||
|
||
$string = $this->applyInheritance();
|
||
|
||
if( ! empty($string))
|
||
$this->parts['where'][] = '('.$string.')';
|
||
|
||
|
||
|
||
$modifyLimit = true;
|
||
if( ! empty($this->parts["limit"]) || ! empty($this->parts["offset"])) {
|
||
|
||
if($needsSubQuery) {
|
||
$subquery = $this->getLimitSubquery();
|
||
|
||
|
||
switch(strtolower($this->conn->getName())) {
|
||
case 'mysql':
|
||
// mysql doesn't support LIMIT in subqueries
|
||
$params = array_merge($this->params, $params);
|
||
$list = $this->conn->execute($subquery, $params)->fetchAll(PDO::FETCH_COLUMN);
|
||
$subquery = implode(', ', $list);
|
||
break;
|
||
case 'pgsql':
|
||
// pgsql needs special nested LIMIT subquery
|
||
$subquery = 'SELECT doctrine_subquery_alias.' . $table->getIdentifier(). ' FROM (' . $subquery . ') AS doctrine_subquery_alias';
|
||
break;
|
||
}
|
||
|
||
$field = $this->aliasHandler->getShortAlias($table->getTableName()) . '.' . $table->getIdentifier();
|
||
|
||
// only append the subquery if it actually contains something
|
||
if($subquery !== '')
|
||
array_unshift($this->parts['where'], $field. ' IN (' . $subquery . ')');
|
||
|
||
$modifyLimit = false;
|
||
}
|
||
}
|
||
|
||
$q .= ( ! empty($this->parts['where']))? ' WHERE ' . implode(' AND ', $this->parts['where']):'';
|
||
$q .= ( ! empty($this->parts['groupby']))? ' GROUP BY ' . implode(', ', $this->parts['groupby']):'';
|
||
$q .= ( ! empty($this->parts['having']))? ' HAVING ' . implode(' AND ', $this->parts['having']):'';
|
||
$q .= ( ! empty($this->parts['orderby']))? ' ORDER BY ' . implode(', ', $this->parts['orderby']):'';
|
||
|
||
if($modifyLimit)
|
||
$q = $this->conn->modifyLimitQuery($q, $this->parts['limit'], $this->parts['offset']);
|
||
|
||
// return to the previous state
|
||
if( ! empty($string))
|
||
array_pop($this->parts['where']);
|
||
if($needsSubQuery)
|
||
array_shift($this->parts['where']);
|
||
|
||
return $q;
|
||
}
|
||
/**
|
||
* this is method is used by the record limit algorithm
|
||
*
|
||
* when fetching one-to-many, many-to-many associated data with LIMIT clause
|
||
* an additional subquery is needed for limiting the number of returned records instead
|
||
* of limiting the number of sql result set rows
|
||
*
|
||
* @return string the limit subquery
|
||
*/
|
||
public function getLimitSubquery()
|
||
{
|
||
$k = array_keys($this->tables);
|
||
$table = $this->tables[$k[0]];
|
||
|
||
// get short alias
|
||
$alias = $this->aliasHandler->getShortAlias($table->getTableName());
|
||
$primaryKey = $alias . '.' . $table->getIdentifier();
|
||
|
||
// initialize the base of the subquery
|
||
$subquery = 'SELECT DISTINCT ' . $primaryKey;
|
||
|
||
if($this->conn->getDBH()->getAttribute(PDO::ATTR_DRIVER_NAME) == 'pgsql') {
|
||
// pgsql needs the order by fields to be preserved in select clause
|
||
|
||
foreach($this->parts['orderby'] as $part) {
|
||
$e = explode(' ', $part);
|
||
|
||
// don't add primarykey column (its already in the select clause)
|
||
if($e[0] !== $primaryKey)
|
||
$subquery .= ', ' . $e[0];
|
||
}
|
||
}
|
||
|
||
$subquery .= ' FROM ' . $this->conn->quoteIdentifier($table->getTableName()) . ' ' . $alias;
|
||
|
||
foreach($this->parts['join'] as $parts) {
|
||
foreach($parts as $part) {
|
||
// preserve LEFT JOINs only if needed
|
||
if(substr($part,0,9) === 'LEFT JOIN') {
|
||
$e = explode(' ', $part);
|
||
|
||
if( ! in_array($e[3], $this->subqueryAliases) &&
|
||
! in_array($e[2], $this->subqueryAliases)) {
|
||
continue;
|
||
}
|
||
|
||
}
|
||
|
||
$subquery .= ' '.$part;
|
||
}
|
||
}
|
||
|
||
|
||
// all conditions must be preserved in subquery
|
||
$subquery .= ( ! empty($this->parts['where']))? ' WHERE ' . implode(' AND ',$this->parts['where']):'';
|
||
$subquery .= ( ! empty($this->parts['groupby']))? ' GROUP BY ' . implode(', ',$this->parts['groupby']):'';
|
||
$subquery .= ( ! empty($this->parts['having']))? ' HAVING ' . implode(' AND ',$this->parts['having']):'';
|
||
$subquery .= ( ! empty($this->parts['orderby']))? ' ORDER BY ' . implode(', ', $this->parts['orderby']):'';
|
||
|
||
// add driver specific limit clause
|
||
$subquery = $this->conn->modifyLimitQuery($subquery, $this->parts['limit'], $this->parts['offset']);
|
||
|
||
$parts = self::quoteExplode($subquery, ' ', "'", "'");
|
||
|
||
foreach($parts as $k => $part) {
|
||
if(strpos($part, "'") !== false) {
|
||
continue;
|
||
}
|
||
|
||
if($this->aliasHandler->hasAliasFor($part)) {
|
||
$parts[$k] = $this->aliasHandler->generateNewAlias($part);
|
||
}
|
||
|
||
if(strpos($part, '.') !== false) {
|
||
$e = explode('.', $part);
|
||
|
||
$trimmed = ltrim($e[0], '( ');
|
||
$pos = strpos($e[0], $trimmed);
|
||
|
||
$e[0] = substr($e[0], 0, $pos) . $this->aliasHandler->generateNewAlias($trimmed);
|
||
$parts[$k] = implode('.', $e);
|
||
}
|
||
}
|
||
$subquery = implode(' ', $parts);
|
||
|
||
return $subquery;
|
||
}
|
||
/**
|
||
* query the database with DQL (Doctrine Query Language)
|
||
*
|
||
* @param string $query DQL query
|
||
* @param array $params parameters
|
||
*/
|
||
public function query($query,$params = array())
|
||
{
|
||
$this->parseQuery($query);
|
||
|
||
if($this->aggregate) {
|
||
$keys = array_keys($this->tables);
|
||
$query = $this->getQuery();
|
||
$stmt = $this->tables[$keys[0]]->getConnection()->select($query, $this->parts["limit"], $this->parts["offset"]);
|
||
$data = $stmt->fetch(PDO::FETCH_ASSOC);
|
||
if(count($data) == 1) {
|
||
return current($data);
|
||
} else {
|
||
return $data;
|
||
}
|
||
} else {
|
||
return $this->execute($params);
|
||
}
|
||
}
|
||
/**
|
||
* splitQuery
|
||
* splits the given dql query into an array where keys
|
||
* represent different query part names and values are
|
||
* arrays splitted using sqlExplode method
|
||
*
|
||
* example:
|
||
*
|
||
* parameter:
|
||
* $query = "SELECT u.* FROM User u WHERE u.name LIKE ?"
|
||
* returns:
|
||
* array('select' => array('u.*'),
|
||
* 'from' => array('User', 'u'),
|
||
* 'where' => array('u.name', 'LIKE', '?'))
|
||
*
|
||
* @param string $query DQL query
|
||
* @throws Doctrine_Query_Exception if some generic parsing error occurs
|
||
* @return array an array containing the query string parts
|
||
*/
|
||
public function splitQuery($query)
|
||
{
|
||
$e = self::sqlExplode($query, ' ');
|
||
|
||
foreach($e as $k=>$part) {
|
||
$part = trim($part);
|
||
switch(strtolower($part)) {
|
||
case 'delete':
|
||
case 'update':
|
||
case 'select':
|
||
case 'set':
|
||
case 'from':
|
||
case 'where':
|
||
case 'limit':
|
||
case 'offset':
|
||
case 'having':
|
||
$p = $part;
|
||
$parts[$part] = array();
|
||
break;
|
||
case 'order':
|
||
case 'group':
|
||
$i = ($k + 1);
|
||
if(isset($e[$i]) && strtolower($e[$i]) === "by") {
|
||
$p = $part;
|
||
$parts[$part] = array();
|
||
} else
|
||
$parts[$p][] = $part;
|
||
break;
|
||
case "by":
|
||
continue;
|
||
default:
|
||
if( ! isset($p))
|
||
throw new Doctrine_Query_Exception("Couldn't parse query.");
|
||
|
||
$parts[$p][] = $part;
|
||
}
|
||
}
|
||
return $parts;
|
||
}
|
||
/**
|
||
* DQL PARSER
|
||
* parses a DQL query
|
||
* first splits the query in parts and then uses individual
|
||
* parsers for each part
|
||
*
|
||
* @param string $query DQL query
|
||
* @param boolean $clear whether or not to clear the aliases
|
||
* @throws Doctrine_Query_Exception if some generic parsing error occurs
|
||
* @return Doctrine_Query
|
||
*/
|
||
public function parseQuery($query, $clear = true)
|
||
{
|
||
if($clear)
|
||
$this->clear();
|
||
|
||
$query = trim($query);
|
||
$query = str_replace("\n", ' ', $query);
|
||
$query = str_replace("\r", ' ', $query);
|
||
|
||
$parts = $this->splitQuery($query);
|
||
|
||
foreach($parts as $k => $part) {
|
||
$part = implode(" ",$part);
|
||
switch(strtoupper($k)) {
|
||
case 'DELETE':
|
||
$this->type = self::DELETE;
|
||
break;
|
||
case 'SELECT':
|
||
$this->type = self::SELECT;
|
||
$this->parseSelect($part);
|
||
break;
|
||
case 'UPDATE':
|
||
$this->type = self::UPDATE;
|
||
$k = 'FROM';
|
||
|
||
case 'FROM':
|
||
$class = 'Doctrine_Query_' . ucwords(strtolower($k));
|
||
$parser = new $class($this);
|
||
$parser->parse($part);
|
||
break;
|
||
case 'SET':
|
||
$class = 'Doctrine_Query_' . ucwords(strtolower($k));
|
||
$parser = new $class($this);
|
||
$this->parts['set'][] = $parser->parse($part);
|
||
break;
|
||
case 'GROUP':
|
||
case 'ORDER':
|
||
$k .= 'by';
|
||
case 'WHERE':
|
||
case 'HAVING':
|
||
$class = 'Doctrine_Query_' . ucwords(strtolower($k));
|
||
$parser = new $class($this);
|
||
|
||
$name = strtolower($k);
|
||
$this->parts[$name][] = $parser->parse($part);
|
||
break;
|
||
case 'LIMIT':
|
||
$this->parts['limit'] = trim($part);
|
||
break;
|
||
case 'OFFSET':
|
||
$this->parts['offset'] = trim($part);
|
||
break;
|
||
}
|
||
}
|
||
|
||
return $this;
|
||
}
|
||
/**
|
||
* DQL ORDER BY PARSER
|
||
* parses the order by part of the query string
|
||
*
|
||
* @param string $str
|
||
* @return void
|
||
*/
|
||
final public function parseOrderBy($str)
|
||
{
|
||
$parser = new Doctrine_Query_Part_Orderby($this);
|
||
return $parser->parse($str);
|
||
}
|
||
/**
|
||
* returns Doctrine::FETCH_* constant
|
||
*
|
||
* @param string $mode
|
||
* @return integer
|
||
*/
|
||
final public function parseFetchMode($mode)
|
||
{
|
||
switch(strtolower($mode)):
|
||
case "i":
|
||
case "immediate":
|
||
$fetchmode = Doctrine::FETCH_IMMEDIATE;
|
||
break;
|
||
case "b":
|
||
case "batch":
|
||
$fetchmode = Doctrine::FETCH_BATCH;
|
||
break;
|
||
case "l":
|
||
case "lazy":
|
||
$fetchmode = Doctrine::FETCH_LAZY;
|
||
break;
|
||
case "o":
|
||
case "offset":
|
||
$fetchmode = Doctrine::FETCH_OFFSET;
|
||
break;
|
||
case "lo":
|
||
case "lazyoffset":
|
||
$fetchmode = Doctrine::FETCH_LAZYOFFSET;
|
||
default:
|
||
throw new Doctrine_Query_Exception("Unknown fetchmode '$mode'. The availible fetchmodes are 'i', 'b' and 'l'.");
|
||
endswitch;
|
||
return $fetchmode;
|
||
}
|
||
/**
|
||
* trims brackets
|
||
*
|
||
* @param string $str
|
||
* @param string $e1 the first bracket, usually '('
|
||
* @param string $e2 the second bracket, usually ')'
|
||
*/
|
||
public static function bracketTrim($str,$e1 = '(',$e2 = ')')
|
||
{
|
||
if(substr($str,0,1) == $e1 && substr($str,-1) == $e2)
|
||
return substr($str,1,-1);
|
||
else
|
||
return $str;
|
||
}
|
||
/**
|
||
* bracketExplode
|
||
*
|
||
* example:
|
||
*
|
||
* parameters:
|
||
* $str = (age < 20 AND age > 18) AND email LIKE 'John@example.com'
|
||
* $d = ' AND '
|
||
* $e1 = '('
|
||
* $e2 = ')'
|
||
*
|
||
* would return an array:
|
||
* array("(age < 20 AND age > 18)",
|
||
* "email LIKE 'John@example.com'")
|
||
*
|
||
* @param string $str
|
||
* @param string $d the delimeter which explodes the string
|
||
* @param string $e1 the first bracket, usually '('
|
||
* @param string $e2 the second bracket, usually ')'
|
||
*
|
||
*/
|
||
public static function bracketExplode($str, $d = ' ', $e1 = '(', $e2 = ')')
|
||
{
|
||
if(is_array($d)) {
|
||
$a = preg_split('/('.implode('|', $d).')/', $str);
|
||
$d = stripslashes($d[0]);
|
||
} else
|
||
$a = explode("$d",$str);
|
||
|
||
$i = 0;
|
||
$term = array();
|
||
foreach($a as $key=>$val) {
|
||
if (empty($term[$i])) {
|
||
$term[$i] = trim($val);
|
||
$s1 = substr_count($term[$i], "$e1");
|
||
$s2 = substr_count($term[$i], "$e2");
|
||
if($s1 == $s2) $i++;
|
||
} else {
|
||
$term[$i] .= "$d".trim($val);
|
||
$c1 = substr_count($term[$i], "$e1");
|
||
$c2 = substr_count($term[$i], "$e2");
|
||
if($c1 == $c2) $i++;
|
||
}
|
||
}
|
||
return $term;
|
||
}
|
||
/**
|
||
* quoteExplode
|
||
*
|
||
* example:
|
||
*
|
||
* parameters:
|
||
* $str = email LIKE 'John@example.com'
|
||
* $d = ' AND '
|
||
* $e1 = '('
|
||
* $e2 = ')'
|
||
*
|
||
* would return an array:
|
||
* array("email", "LIKE", "'John@example.com'")
|
||
*
|
||
* @param string $str
|
||
* @param string $d the delimeter which explodes the string
|
||
*/
|
||
public static function quoteExplode($str, $d = ' ')
|
||
{
|
||
if(is_array($d)) {
|
||
$a = preg_split('/('.implode('|', $d).')/', $str);
|
||
$d = stripslashes($d[0]);
|
||
} else
|
||
$a = explode("$d",$str);
|
||
|
||
$i = 0;
|
||
$term = array();
|
||
foreach($a as $key => $val) {
|
||
if (empty($term[$i])) {
|
||
$term[$i] = trim($val);
|
||
|
||
if( ! (substr_count($term[$i], "'") & 1))
|
||
$i++;
|
||
} else {
|
||
$term[$i] .= "$d".trim($val);
|
||
|
||
if( ! (substr_count($term[$i], "'") & 1))
|
||
$i++;
|
||
}
|
||
}
|
||
return $term;
|
||
}
|
||
/**
|
||
* sqlExplode
|
||
*
|
||
* explodes a string into array using custom brackets and
|
||
* quote delimeters
|
||
*
|
||
*
|
||
* example:
|
||
*
|
||
* parameters:
|
||
* $str = "(age < 20 AND age > 18) AND name LIKE 'John Doe'"
|
||
* $d = ' '
|
||
* $e1 = '('
|
||
* $e2 = ')'
|
||
*
|
||
* would return an array:
|
||
* array('(age < 20 AND age > 18)',
|
||
* 'name',
|
||
* 'LIKE',
|
||
* 'John Doe')
|
||
*
|
||
* @param string $str
|
||
* @param string $d the delimeter which explodes the string
|
||
* @param string $e1 the first bracket, usually '('
|
||
* @param string $e2 the second bracket, usually ')'
|
||
*
|
||
* @return array
|
||
*/
|
||
public static function sqlExplode($str, $d = ' ', $e1 = '(', $e2 = ')')
|
||
{
|
||
if(is_array($d)) {
|
||
$str = preg_split('/('.implode('|', $d).')/', $str);
|
||
$d = stripslashes($d[0]);
|
||
} else
|
||
$str = explode("$d",$str);
|
||
|
||
$i = 0;
|
||
$term = array();
|
||
foreach($str as $key => $val) {
|
||
if (empty($term[$i])) {
|
||
$term[$i] = trim($val);
|
||
|
||
$s1 = substr_count($term[$i],"$e1");
|
||
$s2 = substr_count($term[$i],"$e2");
|
||
|
||
if(substr($term[$i],0,1) == "(") {
|
||
if($s1 == $s2) {
|
||
$i++;
|
||
}
|
||
} else {
|
||
if( ! (substr_count($term[$i], "'") & 1) &&
|
||
! (substr_count($term[$i], "\"") & 1) &&
|
||
! (substr_count($term[$i], "<EFBFBD>") & 1)
|
||
) { $i++; }
|
||
}
|
||
} else {
|
||
$term[$i] .= "$d".trim($val);
|
||
$c1 = substr_count($term[$i],"$e1");
|
||
$c2 = substr_count($term[$i],"$e2");
|
||
|
||
if(substr($term[$i],0,1) == "(") {
|
||
if($c1 == $c2) {
|
||
$i++;
|
||
}
|
||
} else {
|
||
if( ! (substr_count($term[$i], "'") & 1) &&
|
||
! (substr_count($term[$i], "\"") & 1) &&
|
||
! (substr_count($term[$i], "<EFBFBD>") & 1)
|
||
) { $i++; }
|
||
}
|
||
}
|
||
}
|
||
return $term;
|
||
}
|
||
/**
|
||
* generateAlias
|
||
*
|
||
* @param string $tableName
|
||
* @return string
|
||
*/
|
||
public function generateAlias($tableName)
|
||
{
|
||
if(isset($this->tableIndexes[$tableName])) {
|
||
return $tableName.++$this->tableIndexes[$tableName];
|
||
} else {
|
||
$this->tableIndexes[$tableName] = 1;
|
||
return $tableName;
|
||
}
|
||
}
|
||
|
||
/**
|
||
* loads a component
|
||
*
|
||
* @param string $path the path of the loadable component
|
||
* @param integer $fetchmode optional fetchmode, if not set the components default fetchmode will be used
|
||
* @throws Doctrine_Query_Exception
|
||
* @return Doctrine_Table
|
||
*/
|
||
final public function load($path, $loadFields = true)
|
||
{
|
||
|
||
// parse custom join conditions
|
||
$e = explode(' ON ', $path);
|
||
|
||
$joinCondition = '';
|
||
if(count($e) > 1) {
|
||
$joinCondition = ' AND ' . $e[1];
|
||
$path = $e[0];
|
||
}
|
||
|
||
$tmp = explode(' ',$path);
|
||
$componentAlias = (count($tmp) > 1) ? end($tmp) : false;
|
||
|
||
$e = preg_split("/[.:]/", $tmp[0], -1);
|
||
|
||
|
||
if(isset($this->compAliases[$e[0]])) {
|
||
$end = substr($tmp[0], strlen($e[0]));
|
||
$path = $this->compAliases[$e[0]] . $end;
|
||
$e = preg_split("/[.:]/", $path, -1);
|
||
} else {
|
||
$path = $tmp[0];
|
||
}
|
||
|
||
|
||
|
||
$index = 0;
|
||
$currPath = '';
|
||
$this->tableStack = array();
|
||
|
||
foreach($e as $key => $fullname) {
|
||
try {
|
||
$e2 = preg_split("/[-(]/",$fullname);
|
||
$name = $e2[0];
|
||
|
||
$currPath .= '.' . $name;
|
||
|
||
if($key == 0) {
|
||
$currPath = substr($currPath,1);
|
||
|
||
$this->conn = Doctrine_Manager::getInstance()
|
||
->getConnectionForComponent($name);
|
||
|
||
$table = $this->conn->getTable($name);
|
||
|
||
|
||
$tname = $this->aliasHandler->getShortAlias($table->getTableName());
|
||
|
||
if( ! isset($this->tableAliases[$currPath])) {
|
||
$this->tableIndexes[$tname] = 1;
|
||
}
|
||
|
||
|
||
$this->parts["from"] = $this->conn->quoteIdentifier($table->getTableName()) . ' ' . $tname;
|
||
|
||
$this->tableAliases[$currPath] = $tname;
|
||
|
||
$tableName = $tname;
|
||
|
||
} else {
|
||
|
||
$index += strlen($e[($key - 1)]) + 1;
|
||
// the mark here is either '.' or ':'
|
||
$mark = substr($path,($index - 1),1);
|
||
|
||
if(isset($this->tableAliases[$prevPath])) {
|
||
$tname = $this->tableAliases[$prevPath];
|
||
} else {
|
||
$tname = $this->aliasHandler->getShortAlias($table->getTableName());
|
||
}
|
||
|
||
$fk = $table->getRelation($name);
|
||
$name = $fk->getTable()->getComponentName();
|
||
$original = $fk->getTable()->getTableName();
|
||
|
||
|
||
|
||
if(isset($this->tableAliases[$currPath])) {
|
||
$tname2 = $this->tableAliases[$currPath];
|
||
} else
|
||
$tname2 = $this->aliasHandler->generateShortAlias($original);
|
||
|
||
$aliasString = $this->conn->quoteIdentifier($original) . ' ' . $tname2;
|
||
|
||
switch($mark) {
|
||
case ':':
|
||
$join = 'INNER JOIN ';
|
||
break;
|
||
case '.':
|
||
$join = 'LEFT JOIN ';
|
||
break;
|
||
default:
|
||
throw new Doctrine_Query_Exception("Unknown operator '$mark'");
|
||
}
|
||
|
||
if( ! $fk->isOneToOne()) {
|
||
$this->needsSubquery = true;
|
||
}
|
||
|
||
if( ! $loadFields || $fk->getTable()->usesInheritanceMap() || $joinCondition) {
|
||
$this->subqueryAliases[] = $tname2;
|
||
}
|
||
|
||
|
||
if($fk instanceof Doctrine_Relation_Association) {
|
||
$asf = $fk->getAssociationFactory();
|
||
|
||
$assocTableName = $asf->getTableName();
|
||
|
||
if( ! $loadFields || $joinCondition) {
|
||
$this->subqueryAliases[] = $assocTableName;
|
||
}
|
||
$this->parts['join'][$tname][$assocTableName] = $join . $assocTableName . ' ON ' . $tname . '.'
|
||
. $table->getIdentifier() . ' = '
|
||
. $assocTableName . '.' . $fk->getLocal();
|
||
|
||
$this->parts['join'][$tname][$tname2] = $join . $aliasString . ' ON ' . $tname2 . '.'
|
||
. $fk->getTable()->getIdentifier() . ' = '
|
||
. $assocTableName . '.' . $fk->getForeign()
|
||
. $joinCondition;
|
||
|
||
} else {
|
||
$this->parts['join'][$tname][$tname2] = $join . $aliasString
|
||
. ' ON ' . $tname . '.'
|
||
. $fk->getLocal() . ' = ' . $tname2 . '.' . $fk->getForeign()
|
||
. $joinCondition;
|
||
}
|
||
|
||
|
||
$this->joins[$tname2] = $prevTable;
|
||
|
||
|
||
$table = $fk->getTable();
|
||
|
||
$this->tableAliases[$currPath] = $tname2;
|
||
|
||
$tableName = $tname2;
|
||
|
||
$this->relationStack[] = $fk;
|
||
}
|
||
|
||
$this->components[$currPath] = $table;
|
||
|
||
$this->tableStack[] = $table;
|
||
|
||
if( ! isset($this->tables[$tableName])) {
|
||
$this->tables[$tableName] = $table;
|
||
|
||
if($loadFields) {
|
||
|
||
$skip = false;
|
||
|
||
if( ! empty($this->pendingFields))
|
||
$skip = true;
|
||
|
||
if($componentAlias) {
|
||
$this->compAliases[$componentAlias] = $currPath;
|
||
|
||
if(isset($this->pendingFields[$componentAlias])) {
|
||
$this->processPendingFields($componentAlias);
|
||
$skip = true;
|
||
}
|
||
if(isset($this->pendingAggregates[$componentAlias])) {
|
||
$this->processPendingAggregates($componentAlias);
|
||
$skip = true;
|
||
}
|
||
}
|
||
|
||
if( ! $skip) {
|
||
$this->parseFields($fullname, $tableName, $e2, $currPath);
|
||
}
|
||
}
|
||
}
|
||
|
||
|
||
$prevPath = $currPath;
|
||
$prevTable = $tableName;
|
||
} catch(Exception $e) {
|
||
throw new Doctrine_Query_Exception($e->__toString());
|
||
}
|
||
}
|
||
|
||
if($componentAlias !== false) {
|
||
$this->compAliases[$componentAlias] = $currPath;
|
||
}
|
||
|
||
return $table;
|
||
}
|
||
/**
|
||
* parseFields
|
||
*
|
||
* @param string $fullName
|
||
* @param string $tableName
|
||
* @param array $exploded
|
||
* @param string $currPath
|
||
* @return void
|
||
*/
|
||
final public function parseFields($fullName, $tableName, array $exploded, $currPath)
|
||
{
|
||
$table = $this->tables[$tableName];
|
||
|
||
$fields = array();
|
||
|
||
if(strpos($fullName, '-') === false) {
|
||
$fetchmode = $table->getAttribute(Doctrine::ATTR_FETCHMODE);
|
||
|
||
if(isset($exploded[1])) {
|
||
if(count($exploded) > 2) {
|
||
$fields = $this->parseAggregateValues($fullName, $tableName, $exploded, $currPath);
|
||
} elseif(count($exploded) == 2) {
|
||
$fields = explode(',',substr($exploded[1],0,-1));
|
||
}
|
||
}
|
||
} else {
|
||
if(isset($exploded[1])) {
|
||
$fetchmode = $this->parseFetchMode($exploded[1]);
|
||
} else
|
||
$fetchmode = $table->getAttribute(Doctrine::ATTR_FETCHMODE);
|
||
|
||
if(isset($exploded[2])) {
|
||
if(substr_count($exploded[2], ')') > 1) {
|
||
|
||
} else {
|
||
$fields = explode(',', substr($exploded[2],0,-1));
|
||
}
|
||
}
|
||
|
||
}
|
||
if( ! $this->aggregate)
|
||
$this->loadFields($table, $fetchmode, $fields, $currPath);
|
||
}
|
||
/**
|
||
* parseAggregateFunction
|
||
*
|
||
* @param string $func
|
||
* @param string $reference
|
||
* @return string
|
||
*/
|
||
public function parseAggregateFunction($func,$reference)
|
||
{
|
||
$pos = strpos($func, '(');
|
||
|
||
if($pos !== false) {
|
||
$funcs = array();
|
||
|
||
$name = substr($func, 0, $pos);
|
||
$func = substr($func, ($pos + 1), -1);
|
||
$params = Doctrine_Query::bracketExplode($func, ',', '(', ')');
|
||
|
||
foreach($params as $k => $param) {
|
||
$params[$k] = $this->parseAggregateFunction($param,$reference);
|
||
}
|
||
|
||
$funcs = $name . '(' . implode(', ', $params). ')';
|
||
|
||
return $funcs;
|
||
|
||
} else {
|
||
if( ! is_numeric($func)) {
|
||
|
||
$func = $this->getTableAlias($reference).'.'.$func;
|
||
|
||
return $func;
|
||
} else {
|
||
|
||
return $func;
|
||
}
|
||
}
|
||
}
|
||
/**
|
||
* parseAggregateValues
|
||
*/
|
||
public function parseAggregateValues($fullName, $tableName, array $exploded, $currPath)
|
||
{
|
||
$this->aggregate = true;
|
||
$pos = strpos($fullName, '(');
|
||
$name = substr($fullName, 0, $pos);
|
||
$string = substr($fullName, ($pos + 1), -1);
|
||
|
||
$exploded = Doctrine_Query::bracketExplode($string, ',');
|
||
foreach($exploded as $k => $value) {
|
||
$func = $this->parseAggregateFunction($value, $currPath);
|
||
$exploded[$k] = $func;
|
||
|
||
$this->parts['select'][] = $exploded[$k];
|
||
}
|
||
}
|
||
}
|
||
|