Refactored login module. Implemented standard sessions controller.

app/controllers/sessions_controller.rb

@@ -0,0 +1,24 @@
+class SessionsController < ApplicationController
+
+  skip_before_filter :authenticate
+  layout 'login'
+  
+  def new
+  end
+
+  def create
+    user = User.authenticate(params[:nick], params[:password])
+    if user
+      session[:user_id] = user.id
+      redirect_to session['return_to'] || root_url, :notice => "Logged in!"
+    else
+      flash.now.alert = "Invalid email or password"
+      render "new"
+    end
+  end
+
+  def destroy
+    session[:user_id] = nil
+    redirect_to login_url, :notice => "Logged out!"
+  end
+end