DB_DataObject_Formbuilder: preventing crossLinks from being deleted

Hi, I just ran into a problem with the new crossLink behaviour of deleting and inserting only old / new entries. The thingy is that my application also can store data in the crossLink without having set a "toField" (it's set to NULL in this case) because it has no relation to the "toTable". These entries are getting deleted everytime the crossLink is updated. I think this situation could happen quite often. I guess in crossLink processing of the submitted values the $do should be able to be "callback'ed" in some way before the find() is done. Or better a automagically added whereAdd - dunno if this is compatible to all DBMS: $do->whereAdd($toField . 'IS NOT NULL', 'AND'); $do->find(); What's your opinion? -- soenke