how require ruby class in a namespace

Question

I'm writing a class inside a module

#lib/app/models/foo.rb
module App::Models
  class Foo
    def bar
      true
    end
  end
end

and when i tried to run the spec for it

#spec/lib/app/models/foo_spec.rb
require_relative '../../../../lib/app/models/foo'

describe App::Models::Foo do
end

i get the follow error:

rspec spec/lib/app/models/foo_spec.rb
/Users/frojas/git/tmp/lib/app/models/foo.rb:1:in `<top (required)>': uninitialized constant App (NameError)
    from /Users/frojas/git/tmp/spec/lib/app/models/foo_spec.rb:1:in `require_relative'

I don't quite understand want i'm doing wrong.

Where did you define App ? You first need to define it.. Then module App::Models this should come.. — Arup Rakshit
– Arup Rakshit, Commented Jan 28, 2014 at 14:16

Agis · Accepted Answer · 2014-01-28 14:44:16Z

1

You have to define a module before using it:

module App
  module Models
    class Foo
      def bar
        true
      end
    end
  end
end

This way you are defining the App module, then the Models module and then the Foo class properly.

edited Jan 28, 2014 at 14:44

answered Jan 28, 2014 at 14:17

Agis

33.8k4 gold badges77 silver badges81 bronze badges

Sign up to request clarification or add additional context in comments.

1 Comment

Francisco Rojas Over a year ago

Thanks! it's not the namespacing i'm using, it was just the first example I came up with.

Arup Rakshit · Accepted Answer · 2014-01-28 14:18:48Z

1

module App::Models means you are defining Models module inside App module. But Before doing this you need to define the module App also. As you didn't do that, so the error uninitialized constant App (NameError) it bubbles up.

First

module App
  # your code
end

Then

module App::Models
  class Foo
    def bar
      true
    end
  end
end

Or do as below :

module App
  module Models
    class Foo
      def bar
        true
      end
    end
  end
end

answered Jan 28, 2014 at 14:18

Arup Rakshit

119k30 gold badges270 silver badges328 bronze badges

Collectives™ on Stack Overflow

how require ruby class in a namespace

2 Answers 2

1 Comment

Comments

Your Answer

Hot Network Questions

Collectives™ on Stack Overflow

2 Answers 2

1 Comment

Comments

Your Answer

Sign up or log in

Post as a guest

Related