i achieve it using your detail explaination in this forum. ref: https://groups.google.com/forum/#!topic/web2py/ShebcblC9pM
just a little info, ondelete callback not work in edit mode (delete_this_record check box) so that i must use onvalidation to check the value of delete_this_record. e.g. def __onvalidation_purchase_order(form): if request.args(-3) == 'edit' and request.args(-2) == 'purchase_order_header': if form.vars.is_authorized == 'on': #for authorized form.vars.status = 'Purchase Order Authorized' row_header = db(db.purchase_order_header.id==request.vars.id).select().first() db(db.purchase_requisition_header.id==row_header.purchase_requisition_no).update(status='Purchase Requisition Purchase Order Authorized') if request.args(-3) == 'edit' and request.args(-2) == 'purchase_order_header': if form.vars.delete_this_record == 'on': #for delete row_header = db(db.purchase_order_header.id==request.vars.id).select().first() db(db.purchase_requisition_header.id==row_header.purchase_requisition_no).update(status='Purchase Requisition Authorized') else: None def __ondelete_purchase_order(table_involved, id_of_the_deleted_record): row_header = table_involved(id_of_the_deleted_record) db(db.purchase_requisition_header.id==row_header.purchase_requisition_no).update(status='Purchase Requisition Authorized') thank you so much and best regards, stifan -- Resources: - http://web2py.com - http://web2py.com/book (Documentation) - http://github.com/web2py/web2py (Source code) - https://code.google.com/p/web2py/issues/list (Report Issues) --- You received this message because you are subscribed to the Google Groups "web2py-users" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. For more options, visit https://groups.google.com/groups/opt_out.

