Question

I’m trying to make some common scopes for models to be sharing, so i created this:

lib
|_ scopes
   |_ scope.rb
   |_ bars.rb

---

# lib/scopes/scope.rb
module Scope
end

---

# lib/scopes/bars.rb
module Scope
  module Bars
    def self.included(base)
      base.class_eval{
        scope :somescope, lambda{ where(:foo => :bar) }
      }
    end
  end
end

Now when i put this in a model:

include Scope::Bars

It throws an error: Expected c:/sites/app_name/lib/scopes/bars.rb to define Bars

For some bizarre reason, This doesn’t happen when i just use the rails console to test instead of WEBrick server.

Also it perfectly works if i don’t use sub-models, Like: include Bars would work just fine.

Any ideas?

Answer 1

The following structure

lib
|_ scopes
   |_ scope.rb
   |_ bars.rb

expects you to define the top module as Scopes, not Scope. Either rename the folder from scopes to scope or change your module to

# lib/scopes/bars.rb
module Scopes
  module Bars
    def self.included(base)
      base.class_eval do
        scope :somescope, lambda { where(:foo => :bar) }
      end
    end
  end
end