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doctrine2/lib/Doctrine/Query/Having.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::autoload('Doctrine_Query_Condition');
/**
* Doctrine_Query_Having
*
* @package Doctrine
* @license http://www.opensource.org/licenses/lgpl-license.php LGPL
* @category Object Relational Mapping
* @link www.phpdoctrine.com
* @since 1.0
* @version $Revision$
* @author Konsta Vesterinen <kvesteri@cc.hut.fi>
*/
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class Doctrine_Query_Having extends Doctrine_Query_Condition
{
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/**
* DQL Aggregate Function parser
*
* @param string $func
* @return mixed
*/
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private function parseAggregateFunction($func)
{
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$pos = strpos($func, '(');
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if ($pos !== false) {
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$funcs = array();
$name = substr($func, 0, $pos);
$func = substr($func, ($pos + 1), -1);
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$params = Doctrine_Query::bracketExplode($func, ',', '(', ')');
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foreach ($params as $k => $param) {
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$params[$k] = $this->parseAggregateFunction($param);
}
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$funcs = $name . '(' . implode(', ', $params) . ')';
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return $funcs;
} else {
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if ( ! is_numeric($func)) {
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$a = explode('.', $func);
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$field = array_pop($a);
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$reference = implode('.', $a);
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$table = $this->query->load($reference, false);
$field = $table->getColumnName($field);
$func = $this->query->getTableAlias($reference) . '.' . $field;
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return $func;
} else {
return $func;
}
}
}
/**
* load
* returns the parsed query part
*
* @param string $having
* @return string
*/
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final public function load($having)
{
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$e = Doctrine_Query::bracketExplode($having, ' ', '(', ')');
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$r = array_shift($e);
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$t = explode('(', $r);
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$count = count($t);
$r = $this->parseAggregateFunction($r);
$operator = array_shift($e);
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$value = implode(' ', $e);
$r .= ' ' . $operator . ' ' . $value;
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return $r;
}
/**
* __toString
*
* @return string
*/
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public function __toString()
{
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return ( ! empty($this->parts))?implode(' AND ', $this->parts):'';
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}
}