如何在Rails 4.2中的动作中呈现不同的控制器/动作？

Question

I know this is possible but I want to render a controller / action in response to a different action like in my routes.rb , I have:

get ':handle' => 'handler#index'

and in handler_controller , I have:

  def index
    handle=Handle.where('handle=?',params[:handle]).first
    if handle.handle_type=='Location'
       # call location / show  with id from handle
    else
      render text: "not found"
    end  
  end

How would I do this? I should mention, I don't want to do a redirect.

Answer 1

Maybe this can help:

def action_that_calls_one_from_another_controller
  controller_you_want = ControllerYouWant.new
  controller_you_want.request = request
  controller_you_want.response = response
  controller_you_want.action_you_want
end

Answer 2

You can solve this by using an "internal redirect" approach.

Inside rails this can be done via middleware that calls @app again and tracks redirect loops. See tutorial here

Also can be done by utilizing nginx's X-Accel-Redirect : make a regular routes for referenced resources, but instead of regular redirect issue a X-Accel-Redirect header, for user it will be like your page rendered without redirect.