Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

Could not find the association, Rails 3

class Membership < ActiveRecord::Base
  belongs_to :role
  belongs_to :user
end

class User < ActiveRecord::Base
   has_many :roles, :through => :memberships
end

class Role < ActiveRecord::Base
  has_many :users, :through => :memberships
end

and my View

<% for role in Role.find(:all) %>
      <div>
        <%=check_box_tag "user[role_ids][]", role.id, @user.roles.include?(role) %>
        <%=role.name%>
      </div>
     <% end %>

I've got next error on my View - Could not find the association :memberships in model User and i can't understand why this is happens ..

like image 541
paxer Avatar asked Dec 04 '10 08:12

paxer


1 Answers

You need to explicitly state has_many :memberships, like this:

class User < ActiveRecord::Base
   has_many :memberships
   has_many :roles, :through => :memberships
end

class Role < ActiveRecord::Base
   has_many :memberships
  has_many :users, :through => :memberships
end

Add that in, and you should be up and running.

like image 152
Sam Ritchie Avatar answered Oct 04 '22 21:10

Sam Ritchie