Updating sessions controller to use resource oriented style. Changing authenticate method to accept a hash of attributes.

app/controllers/sessions_controller.rb

@@ -10,8 +10,9 @@ class SessionsController < ApplicationController
   # POST /session
   #
   def create
-    if user = resource_class.authenticate(params[:session][:email], params[:session][:password]) #authenticate
-      self.current_user = user
+    self.resource = resource_class.authenticate(params[resource_name])
+    if resource #authenticate
+      self.current_user = resource
       flash[:success] = I18n.t(:signed_in, :scope => [:devise, :sessions], :default => 'Signed in successfully.')
       redirect_to root_path
     else

app/views/sessions/new.html.erb

@@ -1,6 +1,6 @@
 <h2><%= t '.title', :default => 'Sign in', :scope => :devise %></h2>
 
-<% form_for :session, :url => session_path do |f| -%>
+<% form_for resource_name, :url => session_path do |f| -%>
   <p><%= f.label :email %></p>
   <p><%= f.text_field :email %></p>
   <p><%= f.label :password %></p>