Rails: call another controller action from a controller
You can use a redirect to that action :
redirect_to your_controller_action_url
More on : Rails Guide
To just render the new action :
redirect_to your_controller_action_url and return
To use one controller from another, do this:
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
The logic you present is not MVC, then not Rails, compatible.
A controller renders a view or redirect
A method executes code
From these considerations, I advise you to create methods in your controller and call them from your action.
Example:
def index
get_variable
end
private
def get_variable
@var = Var.all
end
That said you can do exactly the same through different controllers and summon a method from controller A while you are in controller B.
Vocabulary is extremely important that's why I insist much.
You can use url_for
to get the URL for a controller and action and then use redirect_to
to go to that URL.
redirect_to url_for(:controller => :controller_name, :action => :action_name)