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from django.conf import settings
from drf_spectacular.extensions import OpenApiSerializerFieldExtension
from drf_spectacular.plumbing import build_object_type
class TranslationsFieldFix(OpenApiSerializerFieldExtension):
target_class = 'parler_rest.fields.TranslatedFieldsField'
def map_serializer_field(self, auto_schema, direction):
# Obtain auto-generated sub-serializer from parler_rest
# Contains the fields wrapped in parler.models.TranslatedFields()
translation_serializer = self.target.serializer_class
# resolve translation sub-serializer into reusable component.
translation_component = auto_schema.resolve_serializer(
translation_serializer, direction
)
# advertise each language provided in PARLER_LANGUAGES
return build_object_type(
properties={
i['code']: translation_component.ref for i in settings.PARLER_LANGUAGES[None]
}
)
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