Can I get the name of the current controller in the view?
Is there a way to figure out what the current controller is from within the view?
For an example of why I would want to know this: if several controllers share the same layout, I may have a part in the layout ERB file where I want to highlight the current page's menu item based on the controller.
Maybe that is a bad approach. If so, what is the more preferred way to do this?
I'm interested to know about getting the name of the current controller either way, though.
(Obviously I could put something like @controller_name = 'users' in each controller; but that seems like the sort of thing Rails would've already done behind the scenes. So I'm just wondering if there's a built-in way.)
controller_name holds the name of the controller used to serve the current view.
Also, in the Rails Guides, it says:
The params hash will always contain the :controller and :action keys, but you should use the methods controller_name and action_name instead to access these values
So let's say you have a CSS class active , that should be inserted in any link whose page is currently open (maybe so that you can style differently) . If you have a static_pages controller with an about action, you can then highlight the link like so in your view:
<li> <a class='button <% if controller.controller_name == "static_pages" && controller.action_name == "about" %>active<%end%>' href="/about"> About Us </a> </li>
#to get controller name: <%= controller.controller_name %> #=> 'users' #to get action name, it is the method: <%= controller.action_name %> #=> 'show' #to get id information: <%= ActionController::Routing::Routes.recognize_path(request.url)[:id] %> #=> '23' # or display nicely <%= debug Rails.application.routes.recognize_path(request.url) %>
controller_path holds the path of the controller used to serve the current view. (ie: admin/settings).
controller_name holds the name of the controller used to serve the current view. (ie: settings).