first cancan

app/models/ability.rb

@@ -4,20 +4,22 @@ class Ability
   def initialize(user)
     user ||= Employee.new
 
-    if user.role? :administrator
+    if user.role == "administrator"
 
         can :manage, :all
 
-    elsif user.role? :cashier
+    elsif user.role == "cashier"
+
       can :read, Order
       can :update, Order
-      can :completed_order_item, Order 
       
       can :read, Sale  
       can :update, Sale      
       
+      can :add_customer, Customer  
+      can :update_sale_by_customer, Customer      
                                                
-    elsif user.role? :accountant
+    elsif user.role == "accountant"
 
       can :read, Order
       can :update, Order
@@ -28,6 +30,5 @@ class Ability
       can :manual_complete_sale, Sale      
 
     end
-
   end
-end
+end