Added user roles and authentication, sign in/out

app/models/user.rb

@@ -7,9 +7,10 @@ class User < ActiveRecord::Base
 
   # Setup accessible (or protected) attributes for your model
   attr_accessible :email, :password, :password_confirmation, :remember_me,
-    :first_name, :last_name, :nickname
+    :first_name, :last_name, :nickname, :role_id
 
   has_many :user_profiles
+  belongs_to :user_role
 
   validates :first_name, :presence => true
   validates :last_name, :presence => true
@@ -19,4 +20,16 @@ class User < ActiveRecord::Base
   def to_s
     "#{first_name} #{last_name}"
   end
+
+  def user?
+    user_role.to_s == "user"
+  end
+
+  def staff?
+    user_role.to_s == "staff"
+  end
+
+  def admin?
+    user_role.to_s == "admin"
+  end
 end

app/models/user_role.rb

@@ -0,0 +1,11 @@
+class UserRole < ActiveRecord::Base
+  attr_accessible :role
+
+  has_many :users
+
+  self.per_page = 15
+
+  def to_s
+    self.role
+  end
+end