Cancan, how to allow artists to edit their own

rubyonrails-talk
1

What am I doing wrong here? I am using cancan on Rails 3. In my Ability class, I've got:

class Ability   include CanCan::Ability

  def initialize(user)     user ||= User.new # guest user, for users who are not registered or don't have an account yet

    if user.role? :admin       can :manage, :all     elsif user.role? :artist       can :read, [Artist, Painting, Video]       can :manage, Video do |video|         video.try(:user) == user       end     else       can :create, [Artist]       can :read, :all     end   end end

In VideosController#index, I have:

          <% if can? :update, song %>             <div class="interaction clearfix">               <%= link_to 'edit', '#' %>               <%= link_to 'delete', '#', :class => 'last' %>             </div>           <% end %>

I get:

undefined method `user' for :index:Symbol

2

By the way. I am using Devise, if that even matters

3

Small code typo. In VideoController#index. It should have been:

          <% if can? :update, video %>             <div class="interaction clearfix">               <%= link_to 'edit', '#' %>               <%= link_to 'delete', '#', :class => 'last' %>             </div>           <% end %>

4

Any thoughts? Also worth noting that Video and Paintings inherit from Media. Media is an STI

5

What is the last error you got?

6

undefined method `user' for :index:Symbol

7

does cancan expect me to have a user method in my user model or something?

8

Ok... I must have been using old cancan code. Back when I was still on Rails 2.3.8.

The new doc says: can :manage, Painting, :artist_id => user.artist.id

Which now seems to work without any errors