Hi Andi, it took me already half the day to track it down to this current problem. I already fixed other issues but whenever I fix one issue the next problem occurs.
Basically, I implemented a feature to add some joins without using the Zend_Db_Table relationship feature, simple because this feature did not exist when I started to extend Zend_Db_Table. I extend the _fetch() method to add the joins: ------------------------------------------------------------------- abstract class Travello_Db_Table extends Zend_Db_Table_Abstract { protected function _fetch(Zend_Db_Table_Select $select) { // extend select $select = $this->_extendSelect($select); // return the results $stmt = $this->_db->query($select); $data = $stmt->fetchAll(Zend_Db::FETCH_ASSOC); return $data; } protected function _extendSelect(Zend_Db_Table_Select $select) { // return select object return $select; } } ------------------------------------------------------------------- Here is an example for one class that extends Travello_Db_Table ------------------------------------------------------------------- class Member_Model_Right extends Travello_Db_Table { protected $_name = 'member_right'; protected $_primary = 'right_id'; protected function _extendSelect(Zend_Db_Table_Select $select) { // add join for member role $select->joinLeft('member_role', 'right_role_id = role_id', array('role_name', 'role_identifier')); // return select object return $select; } } ------------------------------------------------------------------- Currently, I get this exception "Zend_Db_Table_Select_Exception: Select query cannot join with another table". Since Zend_Db_Table_Select is hardcoded throughout the Zend_Db_Table I have no idea how to work around this. So at the moment I think I need to rework my Travello_Db_Table to use the build-in relationship Zend_Db_Table feature rather than my own. But I am not sure if the build-in Zend_Db_Table relationship feature works the way I expect it to, i.e. join tables for each find(), fetchRow() or fetchAll() method call. Thanks for any help or advise. Best Regards, Ralf