private function _renderRelations($tablename)
{
if (!isset($this->_relations[$tablename])) {
return "";
}
$code = "\tpublic static \$RELATIONS = array (";
foreach ($this->_relations[$tablename] as $rel_data) {
$code .= "\n\t\t'" . $rel_data["prop_name"] . "' => array(" . $rel_data["rel_type"] . ", '" . $rel_data["ref_class_name"] . "', '" . $rel_data["prop_ref"] . "'),";
}
$code = substr($code, 0, -1);
$code .= "\n\t);";
return $code;
}