Strings from default locale missing from Django JavaScript catalog

[Carlos Mermingas]

Problem

The JavaScript catalog doesn't include fallback strings in certain scenarios. In other words: when string "A" is not translated in es_MX but it is translated in es, the JavaScript catalog contains the default or untranslated "A" string.

I set up an app that demonstrates this problem: ​https://github.com/cmermingas/i18n_test

I believe that this is an issue but I asked in StackOverflow, in case it's improper use: ​https://stackoverflow.com/questions/73086306/strings-from-default-locale-missing-from-django-javascript-catalog

Setup

• LOCALE_PATHS set to PROJECT_ROOT/locale.

• Translations for all apps stored under LOCALE_PATHS.

• JavaScriptCatalog configured without packages:

path('jsi18n/', JavaScriptCatalog.as_view(), name='javascript-catalog')

• es_MX and es translations that demonstrate the problem:

• The string "es - Not translated" is translated in the es locale.
• The string "es_MX - Not translated" is translated in the es_MX locale.

Workaround

This works if I pass packages to JavaScriptCatalog:

path(
    'jsi18n/',
    JavaScriptCatalog.as_view(packages=["testapp"]),
    name='javascript-catalog'
)

But this is not required, is it?

[Claude Paroz]

I was not able to reproduce your issue with ​https://github.com/claudep/django/commit/8941db68bef
Did I miss something?

[Carlos Mermingas]

Thank you Claude. The only difference that I see in that test setup is that the "locale" folder is under "view_tests", which is an installed app.

How about this? ​https://github.com/cmermingas/django/commit/20f1a1a2f0d0a11f96f6c182b017230bf58ecfa6

[Claude Paroz]

Thanks for your test, I spotted the issue.

[Claude Paroz]

​PR

[Mariusz Felisiak <felisiak.mariusz@…>]

In f2dd6522:

Fixed #33863 -- Fixed JavaScriptCatalog with more than 1 level of fallback translations.

Co-authored-by: Carlos Mermingas <cmermingas@…>