Sivarg

Clearance will save your current location if you try to access a restricted area, and will forward you to the same place after authentication. Nevertheless, if you put a "Login" link in your pages, your users will be redirected to "/", which is not always what we want. To avoid this, we will use a param to return where we want (this is usually in your app layout) :

link_to t(:login), new_session_url(:return_to => request.request_uri)

Now we have a :return_to param with the correct URI, let's handle this in our session controller :

before_filter :set_return_to, :only => :new
 
  def set_return_to
    session[:return_to] = params[:return_to] if params[:return_to]
  end

Clearance is using this session var to handle the returning URI.

Now, if you're not on the home page, click on "login", enter your email / password, you will be redirected to the previous page, being identified.