In Ruby 1.9.2 theres this new functionality - responds_to_misisng? . Calls to this were being picked up by method_missing and causing some rather odd problems in active_record.. i added a patch to Lighthouse that takes care of this explicit case; my concern is given the wide dependence on method_missing within rails and particularly active record, this same bug could be present along other code paths.. In this case it manifested itself by causing a .count call on a named_scope to query the whole collection before doing the select count(id) query.. Stephen -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group. To post to this group, send email to rubyonrails-core@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-core+unsubscribe@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-core?hl=en.