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doctrine2/lib/Doctrine/Query/Having.php
2006-12-29 14:40:47 +00:00

77 lines
1.9 KiB
PHP

<?php
require_once("Condition.php");
class Doctrine_Query_Having extends Doctrine_Query_Condition
{
/**
* DQL Aggregate Function parser
*
* @param string $func
* @return mixed
*/
private function parseAggregateFunction($func)
{
$pos = strpos($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);
}
$funcs = $name."(".implode(", ", $params).")";
return $funcs;
} else {
if ( ! is_numeric($func)) {
$a = explode(".",$func);
$field = array_pop($a);
$reference = implode(".",$a);
$table = $this->query->load($reference, false);
$func = $this->query->getTableAlias($reference).".".$field;
return $func;
} else {
return $func;
}
}
}
/**
* load
* returns the parsed query part
*
* @param string $having
* @return string
*/
final public function load($having)
{
$e = Doctrine_Query::bracketExplode($having, ' ', '(', ')');
$r = array_shift($e);
$t = explode('(', $r);
$count = count($t);
$r = $this->parseAggregateFunction($r);
$operator = array_shift($e);
$value = implode(' ', $e);
$r .= ' ' . $operator . ' ' . $value;
return $r;
}
/**
* __toString
*
* @return string
*/
public function __toString()
{
return ( ! empty($this->parts))?implode(' AND ', $this->parts):'';
}
}