working login, signup, and logout

app/controllers/sessions_controller.rb

@@ -3,9 +3,22 @@ class SessionsController < ApplicationController
   skip_before_filter :authenticated, :only => [:new, :create]
   
   def new
+    redirect_to dashboard_home_path(:dashboard_id => current_user.id) if current_user && current_user.id
   end
   
   def create
+      user = User.authenticate(params[:email], params[:password])
+      if user
+        session[:id] = user.id if User.where(:id => user.id).exists?
+        redirect_to dashboard_home_path(:dashboard_id => user.id)
+      else
+        render "new"
+      end
+  end
+  
+  def destroy
+    reset_session
+    redirect_to root_path
   end
 
 end