AJM Messages: 2361 Registered: April 2006 Location: Surrey, UK
Senior Member
If the contents of $this->lookup_data['foo_bar'] needs to change depending on a selection which you have made in a dropdown list then you need to rebuild the contents of $array in the _cm_updateFieldarray() method by retrieving data using this selection as an argument.
Any code you have in the _cm_getExtraData() method should not rebuild the contents of $this->lookup_data['foo_bar'] if it already exists.