Question

I have a model an a controller for a pages resource.
I need to be able to access the names of the pages
and the pages and link_to from within the
Application.html.erb

I have tried rendering a navigation partial.
But you can’t access the controller from a partial.
I need to be able to render a navbar that has access
the @pages variable so I can loop through them.

What’s the best way to do this?

Answer 1

Inside your ApplicationController, app/controllers/application_controller.rb

class ApplicationController < ActionController::Base
  protect_from_forgery

  before_filter :get_pages

  protected

  def get_pages
    @pages ||= Page.all
  end

end

This way you’re able to use the @pages instance variable from within any view.

By using memoization through the ||= operator you’re only assigning the variable the first time you need it, so no need to worry about calling that method every time.