Simplify ability

app/models/ability.rb

@@ -4,16 +4,25 @@ class Ability
   def initialize(user)
     return unless user
 
-    can :read, Barcode
+    initialize_admin if user.admin?
+    initialize_koelkast if user.koelkast?
+    initialize_user
 
-    if user.admin?
+    can :read, Barcode
+  end
+
+  def initialize_admin
     can :manage, :all
-    elsif user.koelkast?
+  end
+
+  def initialize_koelkast
     can :manage, Order do |order|
       !order.try(:user).try(:private)
     end
     can :quickpay, User
-    else
+  end
+
+  def initialize_user
     can :read, :all
     can :manage, User, id: user.id
     can :create, Order do |order|
@@ -24,4 +33,3 @@ class Ability
     end
   end
 end
-end