Changing UserRole to UserRoleJoin

Beware, this breaks the view for some reason

app/models/ability.rb

@@ -1,14 +1,14 @@
 class Ability
   include CanCan::Ability
-  
+
   def initialize(current_user)
     @current_user = current_user
-    self.send(current_user.role.to_sym)
+    self.send(current_user.role.role.to_sym)
   end
 
   def admin
     can :manage, :all
-  end  
+  end
 
   def staff
     can :manage, :all
@@ -21,7 +21,7 @@ class Ability
 
   def user
     can :read, :all
-    can :update, Bike, :id => @current_user.bike_id unless @current_user.bike.nil?
+    can :manage, Bike, :id => @current_user.bike_id unless @current_user.bike.nil?
     can :manage, ::ActsAsLoggable::Log, { :loggable_type => "Bike", :loggable_id => @current_user.bike_id }
     can :manage, ::ActsAsLoggable::Log, { :loggable_type => "User", :loggable_id => @current_user.id }
   end

app/models/role.rb

@@ -0,0 +1,16 @@
+class Role < ActiveRecord::Base
+  attr_accessible :role
+
+  has_many :user_role_joins
+  has_many :users, through: :user_role_joins
+  validates_uniqueness_of :role
+
+
+  def to_s
+    self.role
+  end
+
+  def ==(other)
+    self.role == other.role
+  end
+end

app/models/user.rb

@@ -7,14 +7,16 @@ 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, :user_role_id, :bike_id,
+    :first_name, :last_name, :nickname, :bike_id,
     :user_profiles_attributes
 
   has_many :transactions
   has_many :user_profiles
   accepts_nested_attributes_for :user_profiles, allow_destroy: false
 
-  has_one :user_role
+  has_many :user_role_joins
+  has_many :roles, through: :user_role_joins
+
   belongs_to :bike
 
   validates :first_name, :presence => true
@@ -28,12 +30,11 @@ class User < ActiveRecord::Base
     to_s
   end
 
-  def role
-    user_role.role
-  end
-
   def role?(role)
-    user_role.to_s == role.to_s
+    if role.kind_of?(String) or role.kind_of?(Symbol)
+      role = Role.find_by_role(role.to_s)
+    end
+    roles.include?(role)
   end
 
   def total_hours

app/models/user_role.rb

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

app/models/user_role_join.rb

@@ -0,0 +1,13 @@
+class UserRoleJoin < ActiveRecord::Base
+  #set_table_name :user_role_joins
+  attr_accessible :role_id, :user_id
+
+  belongs_to :user
+  belongs_to :role
+
+  validate :role_id, presence: true, numericality: true
+  validate :user_id, presence: true, numericality: true
+  validates_uniqueness_of :user_id, :scope => :role_id
+
+  self.per_page = 15
+end