On 16 October 2014 20:14, Brian Sammon <[email protected]> wrote: > On Thu, 16 Oct 2014 19:58:52 +0100 > Colin Law <[email protected]> wrote: > >> On 15 October 2014 22:01, Brian Sammon >> <[email protected]> wrote: >> > All my tables/models have a "revision" field, and I have a >> > before_update callback to increment the revision field. >> > >> > Among my tables are: >> > events >> > rooms >> > events_rooms >> > >> > In my Event model, I have: >> > has_many :eventRooms >> > has_many(:rooms, :through => :eventRooms) >> > >> > When I create an event, assign a room or two, and then save, the >> > "events_rooms" table entry is initially created with a revision of 1, >> > and then (immediately, automatically, and inexplicably) updated to hav >> > a revision of 2. I do not want every new record to have a revision >> > number of 2. The revision 2 version is identical to revision 1 (which >> > it replaces), aside from the revision number. >> > >> > I can reproduce this in the rails console with the following: >> > event = Event.new({'name' => 'Meeting 5'}) >> > event.rooms << Room.find(['1', '2']) >> > event.save >> > >> > Does anyone have any idea why this could be happening or where I shoul >> > look for further troubleshooting? >> >> Just to be clear you are saying that the above code invokes >> before_update once where you would not expect it to be called at all? >> If so is it invoked by the save or does it get called when the room is >> added? >> >> Does it save it twice? > > it does a sql INSERT followed by a sql UPDATE (both) after "event.save".
Strictly it will be during event.save call (before the UPDATE). Presumably it is adding the room that is triggering the problem. It does look like a bug to me. Do you know whether it happened with earlier versions of Rails? If not then almost certainly a bug. Colin -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/rubyonrails-talk/CAL%3D0gLvkpbZo25CezDAMCCsG5gZVFes4wahHUCZDQvWm4s8n4Q%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
