eSpace

One of the most helpful and simple-to-use Rails plugins is simple_localization. It makes the job of localizing a Rails application a lot easier and straight forward; it implements localization through a set of features. One of the most commonly used features is localized ActiveRecord error messages. Its use is for localizing the standard error messages generated upon ActiveRecord validations ("can't be blank", "is too short", ..etc).

Working on a Rails project, after localizing the whole application, everything was working just fine in the development environment. However, when trying it in production environment, the locaized-error-messages feature didn't seem to work properly. Error messages for some (not all) of the models were not translated. To my surprise, those models were exactly those being observed by declared observers.

Now, what seems to be the problem? The problem is that the implementation of localized-error-messages feature is just as simple as follows; it just overrides ActiveRecord::Errors.default_error_messages with the translated version.