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doctrine2/lib/Doctrine/Resource/Query.php

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<?php
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/*
* $Id$
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*
* This software consists of voluntary contributions made by many individuals
* and is licensed under the LGPL. For more information, see
* <http://www.phpdoctrine.com>.
*/
/**
* Doctrine_Resource_Query
*
* @package Doctrine
* @subpackage Resource
* @author Jonathan H. Wage <jwage@mac.com>
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* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @version $Revision$
* @link www.phpdoctrine.com
* @since 1.0
*/
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class Doctrine_Resource_Query
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{
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protected $_parts = array();
protected $_dql = null;
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public function getConfig($key = null)
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{
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return Doctrine_Resource_Client::getInstance()->getConfig($key);
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}
public function query($dql, $params = array())
{
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$this->_dql = $dql;
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return $this->execute($params);
}
public function execute($params = array())
{
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$params = is_array($params) ? $params:array($params);
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$request = new Doctrine_Resource_Request();
$request->set('dql', $this->getDql());
$request->set('params', $params);
$request->set('action', 'query');
$request->set('model', $this->getModel());
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$response = $request->execute();
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if (!empty($response)) {
$collection = new Doctrine_Resource_Collection($this->getModel());
$collection->fromArray($response);
} else {
$model = $this->getModel();
$collection = new Doctrine_Resource_Collection($model);
$collection[] = new $model();
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}
return $collection;
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}
public function getDql()
{
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if (!$this->_dql && !empty($this->_parts)) {
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$q = '';
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$q .= ( ! empty($this->_parts['select']))? 'SELECT ' . implode(', ', $this->_parts['select']) : '';
$q .= ( ! empty($this->_parts['from']))? ' FROM ' . implode(' ', $this->_parts['from']) : '';
$q .= ( ! empty($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']) : '';
$q .= ( ! empty($this->_parts['limit']))? ' LIMIT ' . implode(' ', $this->_parts['limit']) : '';
$q .= ( ! empty($this->_parts['offset']))? ' OFFSET ' . implode(' ', $this->_parts['offset']) : '';
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return $q;
} else {
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return $this->_dql;
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}
}
public function buildUrl($array)
{
$url = '';
foreach ($array as $key => $value) {
if (is_array($value)) {
$url .= $this->buildUrl($value);
} else {
$url .= $key.'='.$value.'&';
}
}
return $url;
}
public function getModel()
{
$dql = $this->getDql();
$e = explode('FROM ', $dql);
$e = explode(' ', $e[1]);
return $e[0];
}
/**
* addSelect
* adds fields to the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function addSelect($select)
{
return $this->parseQueryPart('select', $select, true);
}
/**
* addFrom
* adds fields to the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function addFrom($from)
{
return $this->parseQueryPart('from', $from, true);
}
/**
* addWhere
* adds conditions to the WHERE part of the query
*
* @param string $where Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
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public function addWhere($where)
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{
return $this->parseQueryPart('where', $where, true);
}
/**
* addGroupBy
* adds fields to the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function addGroupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby, true);
}
/**
* addHaving
* adds conditions to the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
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public function addHaving($having)
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{
return $this->parseQueryPart('having', $having, true);
}
/**
* addOrderBy
* adds fields to the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function addOrderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby, true);
}
/**
* select
* sets the SELECT part of the query
*
* @param string $select Query SELECT part
* @return Doctrine_Query
*/
public function select($select)
{
return $this->parseQueryPart('select', $select);
}
/**
* distinct
* Makes the query SELECT DISTINCT.
*
* @param bool $flag Whether or not the SELECT is DISTINCT (default true).
* @return Doctrine_Query
*/
public function distinct($flag = true)
{
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$this->parseQueryPart('distinct', (bool) $flag);
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}
/**
* from
* sets the FROM part of the query
*
* @param string $from Query FROM part
* @return Doctrine_Query
*/
public function from($from)
{
return $this->parseQueryPart('from', $from);
}
/**
* innerJoin
* appends an INNER JOIN to the FROM part of the query
*
* @param string $join Query INNER JOIN
* @return Doctrine_Query
*/
public function innerJoin($join)
{
return $this->parseQueryPart('from', 'INNER JOIN ' . $join, true);
}
/**
* leftJoin
* appends a LEFT JOIN to the FROM part of the query
*
* @param string $join Query LEFT JOIN
* @return Doctrine_Query
*/
public function leftJoin($join)
{
return $this->parseQueryPart('from', 'LEFT JOIN ' . $join, true);
}
/**
* groupBy
* sets the GROUP BY part of the query
*
* @param string $groupby Query GROUP BY part
* @return Doctrine_Query
*/
public function groupBy($groupby)
{
return $this->parseQueryPart('groupby', $groupby);
}
/**
* where
* sets the WHERE part of the query
*
* @param string $join Query WHERE part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
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public function where($where)
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{
return $this->parseQueryPart('where', $where);
}
/**
* having
* sets the HAVING part of the query
*
* @param string $having Query HAVING part
* @param mixed $params an array of parameters or a simple scalar
* @return Doctrine_Query
*/
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public function having($having)
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{
return $this->parseQueryPart('having', $having);
}
/**
* orderBy
* sets the ORDER BY part of the query
*
* @param string $orderby Query ORDER BY part
* @return Doctrine_Query
*/
public function orderBy($orderby)
{
return $this->parseQueryPart('orderby', $orderby);
}
/**
* limit
* sets the Query query limit
*
* @param integer $limit limit to be used for limiting the query results
* @return Doctrine_Query
*/
public function limit($limit)
{
return $this->parseQueryPart('limit', $limit);
}
/**
* offset
* sets the Query query offset
*
* @param integer $offset offset to be used for paginating the query
* @return Doctrine_Query
*/
public function offset($offset)
{
return $this->parseQueryPart('offset', $offset);
}
/**
* parseQueryPart
* parses given DQL query part
*
* @param string $queryPartName the name of the query part
* @param string $queryPart query part to be parsed
* @return Doctrine_Query this object
*/
public function parseQueryPart($queryPartName, $queryPart)
{
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$this->_parts[$queryPartName][] = $queryPart;
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return $this;
}
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}