26 lines
746 B
Python

from django.conf import settings
from django.utils import translation
from psqlextra import expressions
class LocalizedRef(expressions.HStoreRef):
"""Expression that selects the value in a field only in
the currently active language."""
def __init__(self, name: str, lang: str=None):
"""Initializes a new instance of :see:LocalizedRef.
Arguments:
name:
The field/column to select from.
lang:
The language to get the field/column in.
If not specified, the currently active language
is used.
"""
language = lang or translation.get_language() or settings.LANGUAGE_CODE
super().__init__(name, language)