protected function _setQueryAliases($root = true, $preffered = null)
{
static $used = array();
if ($root) {
if (!count($this->_joined)) {
$this->_useAlias = false;
return;
}
self::$_aliasesUsed = array();
self::$_aliasCounter = 1;
}
$this->_useAlias = true;
if (strlen($preffered) && !in_array($preffered, self::$_aliasesUsed)) {
self::$_aliasesUsed[] = $this->_alias = $preffered;
} else {
$this->_alias = 't' . self::$_aliasCounter++;
}
foreach ($this->_joined as $joined) {
list($selector, $fk, $jk, $jt, $alias) = $joined;
$selector->_setQueryAliases(false, $alias);
}
}
