On Jan 16, 12:09 am, Bob Smith <bsm...@gmail.com> wrote: > On Dec 25 2011, 12:32 am, Walter Lee Davis <wa...@wdstudio.com> wrote: > > > > > On Dec 25, 2011, at 12:15 AM, Bob Smith wrote: > > > > On Dec 24, 1:18 pm, Walter Lee Davis <wa...@wdstudio.com> wrote: > > > Use an :after_create callback in those cases; you will have the ID at > > > that point and you can use it. Remember, you will need to set any > > > relationship keys directly, not at the object level, since you can't > > > call save again in an after_create (I don't think). Here's my > > > after_save method from a similar setup: > > > > def set_primary > > > self.update_attributes( :role_id => self.roles.first.id ) if > > > self.roles.first > > > end > > > >> This is from inside a Title, which has_many roles, has_many people > > >> through roles, and belongs_to one role (designating the "primary" > > >> person, like the author or the editor -- the one that people think of > > >> when they're looking for that book, even though lots of people may have > > >> contributed to it). > > > >> I needed to go this route because I was using Ryan Bates' nested_form > > >> gem, and so I was adding roles to a title that hadn't been saved yet -- > > >> very similar to your setup if I recall correctly. Since I can't > > >> designate a primary in the #new method, because nothing has anIDyet, I > > >> use this callback to sort things out, and count on my editors to always > > >> choose the most important person first. I have a new_record? test in my > > >> view to hide theradiobuttons in that case, and show them in the #edit > > >> view of the same form. > > > >> Walter > > > > This is very close to what I wanted. It seems you were having the same > > > problem as I am using the new_record? test to remove the > > > radio_buttons. I am trying to find a way to get the id after the > > > create and putting it in the Household.hoh field. Maybe in the > > > after_create callback for each Person object. But how can I access the > > >radiobuttonand see who was selected from there ?? I see you > > > used .first to set the id. Will this help me see who was selected by > > > theradiobuttons ?? > > > No, this only hacks around the problem of setting the primary role in a new > > title object by choosing the first member of the has_many roles collection > > within the controller. The actual method of getting the role from > > theradiobuttonis much simpler and more direct. > > > <%= radio_button_tag 'title[role_id]', f.object.id, (@title.role_id > > == f.object.id) %> > > > That's inside a partial called _role_fields.html.erb, and it's filled in > > using the nested_form gem as I mentioned earlier. It's just named correctly > > to act on the parent title object, and inside the partial, f.object points > > to the individual role object. > > > Walter > > > > Bob > > > > -- > > > 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 > > > rubyonrails-talk+unsubscr...@googlegroups.com. > > > For more options, visit this group > > > athttp://groups.google.com/group/rubyonrails-talk?hl=en. > > Almost there... Thanks for the help. > > The latest problem is with the radio button using a variable in the > parent to store the selected child record id. Setting > this in the view doesn't allow new records to have an id yet. Do you > know a way of having each radio button put a one in a > variable that is located in each child record ? If so, then it should > be easy for after_create to test each child record > for that value and when it's found there should already be an id to > put in the parent variable. > > Thanks again > > Bob
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