lib/rbacan.rb in rbacan-0.1.1 vs lib/rbacan.rb in rbacan-0.1.2

@@ -41,10 +41,10 @@
     @@role_permission_class.create(role_id: chosen_role.id, perm_id: given_permission.id)
   end
 
   def assign_role(role_name)
       assigned_role = Role.find_by_name(role_name)
-      @@user_role_class.create(user_id: self.id, role_id: assigned_role.id)
+      @@user_role_class.find_or_create_by(user_id: self.id, role_id: assigned_role.id)
   end
 
   def remove_user_role(role_name)
       removed_role = Role.find_by_name(role_name)
       @@user_role_class.where(user_id: self.id, role_id: removed_role.id).destroy_all