Nested forms in rails - accessing attribute in has_many relation

Question

I have a user and a profile model. One user can have many profiles. I need to access only one information from the profiles section (viz the phone number) in my user model d

Answer 1

You can use 'accepts_nested_attributes_for' to do this; but there's a little trick in forms:

You must use the singular, and call fields_for for each profile, like this:

<% form_for @user do |f| -%>
<% @user.profiles.each do %>
<% f.fields_for :profile_attributes, profile do |ff| -%>
<% end %>

Notice that is :profile_attributes, instead of just :profile.