NoMethodError when trying to invoke helper method from Rails controller

Question

I\'m getting a NoMethodError when trying to access a method defined in one of my helper modules from one of my controller classes. My Rails application uses the

Answer 1

The time when I find this to be most needed is for writing the flash, or custom error checkers. Its nice to use things like link_to helpers in the flash message under some circumstances. I use the following solution to get ActionView helpers into the controller. Be advised that as was mentioned above, this breaks the MVC separation, so if anyone else has a better idea, let me know!

Below ApplicationController add this:

class Something
  include Singleton
  include ActionView::Helpers::UrlHelper
end

and inside the ApplicationController, add

def foo
  Something.instance
end

and finally, in the controller where you want to access the helper code:

messages << "
Your have an Error!<%= foo.link_to('Fix This', some_path) %>
"

Hope that helps in some way!