I wanna add a server validation before change(or create) data, if not passed, create a confirm dialog to let user choose still save or not.

The problem is that I don't know how to create a confirm dialog when in write method, it is possible to make dialog by returning action when click button, but this not be able for write method.

So I try to raise server Error to manually call `new ActionManager().do_action()` in crash_manager.js, another problem came, I cannot get the form view object to reload it.

It really drives me crazy, please help me or share some experience if you have done some similar work.