View context issue when inheriting from an engine controller

[Jens Ljungblad]

I have an engine related rails issue.

I have two engines, of which one is mounted.

1. FooEngine
2. BarEngine (mounted at: "/bar")

I have three controllers:

class FooEngine::SessionsController < BarEngine::ApplicationController
  def new; end
end

class BarEngine::ApplicationController < ActionController::Base
  def welcome; end
end

class BarEngine::SessionsController < FooEngine::SessionsController
end

In my BarEngine routes file:

BarEngine::Engine.routes.draw do
  root to: "application#welcome"
  resources :sessions, only: [:new]
end

For some reason, the view context is not what I expect it to be when I go to "/bar/sessions/new". I would expect to have access to "root_path" for instance, but I do not. I need to use "bar.root_path". E.g.

class BarEngine::SessionsController < FooEngine::SessionsController
  def new
    view_context.root_path     # does not work
    view_context.bar.root_path # works
  end
end

This is surprising to me because BarEngine::SessionsController inherits from FooEngine::SessionsController which inherits from BarEngine::ApplicationController. It seems I'm somehow in the wrong scope inside BarEngine::SessionsController.