[Bug]: Order detail view constantly reloading with non default backend language

[maersu]

Description of the issue

When I change LANGUAGE_CODE in backend to something else like ('de') dashboard loads every order detail page in dashboard endlessly.

It constantly switches the country in invoice address and delivery from German to English and back. One can not interact with any order

Steps to reproduce the problem

1. Replace settings.LANGUAGE_CODE with something else than "en" in backend
2. create and order
3. access the order detail in Saleor dashboard

What did you expect to happen?

Detail view does not reload

Additional information

No response

Environment

Browser and version:Brave v1.73.91 / Firefox v132.0.2
OS and version: MacOS 15.0.1
Dashboard version: 3.20.11
Core version: 3.20.33

[kzuraw]

👋🏻 Hi @maersu thanks for raising the issue - to be 100% sure we are talking about changing LANGUAGE_CODE in https://github.com/saleor/saleor ?

[maersu]

Hi @krzysztofzuraw, thanks for your response.
Yes I changed it in https://github.com/saleor/saleor/blob/main/saleor/settings.py#L126

[aniav]

Getting back to this error. @maersu what is your use case for changing LANGUAGE_CODE? It's Django's internal language and I don't think it should be changed really as there are other options to operate with languages in Saleor.

[naisonsouza]

@aniav sometimes it’s necessary to change the core language to enable internationalization, so that the messages returned by the system are translated in the response (like validations and errors). Otherwise, the dashboard is in a specific language, but the validation messages always come back in English. For example: the dashboard is in pt-BR with translations, but when you submit a form and there’s a validation error, the error messages are returned in en and not in pt-BR.

[naisonsouza]

@maersu I was able to identify the cause of the problem.

When an order has a registered address (shipping or billing), it returns the country using the language set in the settings.py. However, the list of available countries in the saleor api is always returned in English, so the names don’t match.

The error happens because the api saleor is overriding the config language from settings.py to None, which overrides the setup default language to English. By removing the line with translation.override(language_code): the languages are returned according to the language configured in settings.py:
https://github.com/saleor/saleor/blob/main/saleor/graphql/shop/resolvers.py#L48