has_one :through saving

rubyonrails-talk
1

Hi all,

I'm having issues with a has_one :through relationship. I have a setup where "Ticket has_one :show, :though => :pool". The thing worked, but what I noticed is that as soon as my ticket is saved, the show is also saved. In my case this is pretty dangerous, since I'm using optimistic locking on the show and since tickets are updated very frequently, things can get pretty messy.

Is it possible to turn of this behavior and never save the associated model? In my case, the show is never set directly on the ticket (ticket.show = Show.find(x) is never done), so I've worked around it by just creating a method "show" that returns pool.show, but I don't really like this solution, since I also use the relation in some API code that figures out what to return by inspecting the model.

Regards,

Wouter

2

Does :autosave do what you want?

has_one :show, :though => :pool, :autosave => false

Or if you never want to save this way, maybe:

has_one :show, :though => :pool, :readonly => true

I haven't tried either, but I remember running across these in one of the rails guides, so maybe it helps.