PS. Actually I've just seen in this RailsCasts episode that Ryan seems to have a nested model controller that does translate the parent & child model data from the form to parent model and its association (child model). Am I missing something Frederick re whether you may have been wrong here?
Link = http://railscasts.com/episodes/73-complex-forms-part-1 On Sun, Nov 23, 2008 at 9:50 AM, Greg Hauptmann <[EMAIL PROTECTED]> wrote: > thanks for responding Frederick: So just to clarify you mean: > > (a) I would have to do this in my controller in the "save" method right? > (b) so anyone that anyone using Rails that has nested models in their > views do have to do this too then? i.e. extract work in the > controller? i.e. there's no ability in Rails 2.1 with nested models > to have the params perfectly auto-populated the models (i.e. parent > model and it's association models) out-of-the-box? > > thanks again > > > > On Sun, Nov 23, 2008 at 1:00 AM, Frederick Cheung > <[EMAIL PROTECTED]> wrote: >> >> >> >> On Nov 22, 11:56 am, "Greg Hauptmann" <[EMAIL PROTECTED]> >> wrote: >>> ok, re "I'm just trying to load a set of options which doesn't require >>> tables (i.e. using tableless plugin)" I've got the View working now, >>> however when I submit back I have an error as Rails tries to populate >>> the association models. Any ideas - it's like the parameter >>> array/hash structure coming into Rails is fine, however when it tries >>> to load the association data into the model for the associations it >>> has a problem. >>> >>> Is my model (graph_options.rb) correct? Do I need to specify a >>> specific "attr_accessible :lines" here? Or should the "has_many >>> :lines" be enough? >> >> attr_accessible is something completely different. The issue here is >> that all update_attributes does is for each key value pair it calls >> your_model.send("#{key}=", value). That's fine for attributes, but >> that means that what it's passing to lines= is not an array of Line >> items, but an array of hashes. >> In rails 2.1 you just have to extract that array of hashes, turn it >> into objects of the right type and then assign it to >> your_object.lines. There was talk of changing this in rails 2.2 but I >> can't remember what was done about it in the end. >> >> Fred >> >> >> >> >> > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com To unsubscribe from this group, send email to [EMAIL PROTECTED] For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
