Dynamic MODELTRANSLATION_DEFAULT_LANGUAGE

[Erdem Demirci]

users >> model.py
from django.conf import settings
-------

class User(AbstractUser):

language = CharField( _("Language"),choices=settings.LANGUAGES,)

django main >> settings.py

MODELTRANSLATION_DEFAULT_LANGUAGE = "en"

*****

There's a language field in users app.

How can I change dynamically "MODELTRANSLATION_DEFAULT_LANGUAGE" value 
according to logged in user's language field choice

Default is "en".
If logged in user choice is "de" , the value must be "de".

Any help , please..Thanks