rescue [] user.active_attributes when nil

app/models/user.rb

@@ -31,7 +31,7 @@ class User
   
   # Get the active user_attribute_models
   def get_active_attribute_models
-    self.active_attributes.map{ |attr| get_attribute_model(attr) }
+    self.active_attributes.map{ |attr| get_attribute_model(attr) } rescue []
   end
   
   # Get an user_attribute_model from key