Hi,
I have two models in my application, User and Profile, looking like
this:
class User < ActiveRecord::Base
has_one :profile, :dependent => :destroy
end
class Profile < ActiveRecord::Base
belongs_to :user
end
What I want to do is to be able to edit a user object instance and the
associated profile from the same form. I’ve tried to reference the
profile in my view template as can be seen below (my edit action
instantiates a @user variable with data from the db).
<%= text_area ‘user.profile’, ‘about_message’, :cols => 20, :rows => 3
%>
However, when I try to load the page in my browser I get an error:
`@user.profile’ is not allowed as an instance variable name
I then choosed to add a @profile variable and reference it instead.
<%= text_area ‘profile’, ‘about_message’, :cols => 20, :rows => 3 %>
This works for the view part, but my controller code doesn’t behave as
expected. Here’s what I try to do:
@user.attributes = params[:user]
@user.profile.attributes = params[:profile]
@user.save
I’ve read in AWDWR that Active Record automatically saves dependent
child rows when the parent row is saved (and wraps the inserts/updates
in a transaction), but for some reason I can’t get it to work. Only the
changes to the user object are saved …
After some googling I decided to use the “update_attributes” method and
since I make two separate database calls I’ve wrapped them in a
transaction.
begin
transaction do
@user.update_attributes(params[:user])
@profile.update_attributes(params[:profile])
end
rescue
success = false
end
This worked eventually, but intuitively it doesn’t feel like the right
way to solve the problem. What do I need to do to have the profile being
saved automatically when the user is saved? Is it possible at all?
What I would like to be able to do is something like either:
1)
View:
<%= text_area ‘user.profile’, ‘about_message’, :cols => 20, :rows => 3
%>
Action:
@user.update_attributes(params[:user])
or
View:
<%= text_area ‘profile’, ‘about_message’, :cols => 20, :rows => 3 %>
Action:
@user.attributes = params[:user]
@user.profile.attributes = params[:profile]
@user.save
Any help to shed some light on this is much appreciated. Cheers