Ok... someone suggested to use virtual attributes instead. Is this the
right way to go?
Basically a registered user can sign up as an artist.
Artist model has the following fields: id, user_id, band_name
User model has: id, name, city_id, genre_id
In the artist registration form:
<%= form_for(@artist) do |f| %>
<ul>
<li class="clearfix">
<%= f.label :band_name %>
<%= f.text_field :band_name %>
</li>
<li class="clearfix">
<%= f.label :city_id %>
<%= f.grouped_collection_select(:city_id,
Country.find(:all), :cities, :name, :id, :name, { :prompt => 'Select a
city' }) %>
</li>
<li class="clearfix">
<%= f.label :genre_id %>
<%= f.collection_select :genre_id, Genre.all, :id, :name,
{ :prompt => 'Select a genre' } %>
</li>
</ul>
<% end %>
In my artist model, I created virtual attributes:
class Artist < ActiveRecord::Base
belongs_to :user
has_many :medias
validates_presence_of :band_name
attr_accessible :band_name, :city_id, :genre_id
# Virtual attribute. Needed when user wants to register as an artist
def city_id
end
# Virtual attribute. Needed when user wants to register as an artist
def genre_id
end
def after_create
# Update the user fields: city_id and genre_id
self.user.update_attributes(
:city_id => self.city_id,
:genre_id => self.genre_id
)
end
end
However, when I submit the form, I get:
ActiveRecord::UnknownAttributeError in ArtistsController#create
unknown attribute: city_id
The error occurs in the artist controller def create method. The first
line: @artist = Artist.new(params[:artist])
Am I doing this right? What is wrong?
On Oct 8, 2:51 am, radhames brito <[email protected]> wrote:
> > class Artist < ActiveRecord::Base
> > belongs_to :user
>
> > accepts_nested_attributes_for :user
>
> this is backwards, artist is nested inside users but you want artist to
> accept nested attributes of users.
>
> It only works the when you are accepting attributes for the child model from
> inside the parent.
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