In production, not all strings are updated when localization changes dynamically in a Rails application. Why?

Question

Nginx

In production, I use the NGINX + PASSENGER bundle.
I change the locales in the ApplicationController like this:
I18n.locale = current_user.locale rescue :en
However, not all phrases are translated into the newly installed locale until, for example, touch tmp/restart.txt is done. If you wait a while, refresh the page, then everything is seized. The problem does not always recur. What could it be? Is nginx caching? Rail buggy?

Answer 1

As far as I can judge, your method insures you against an exception, but not from the "error-free" return of some crooked value from current_user.locale
I would write something like this

I18n.locale = ([current_user.try(:locale)] & [:en, :ru, :etc]).first || :en