def get_discriminant(self, request: WSGIRequest) -> str:
try:
if request.api_params.resource_discriminator:
return request.api_params.resource_discriminator
except AttributeError:
pass
if request.method in self.resource_discriminate_methods:
discriminant = (request.GET.get(self.resource_discriminative_param)
or self.default_discriminative_value)
if settings.API_RESOURCE_SET_PARAM and (
discriminant != self.default_discriminative_value
or settings.API_RESOURCE_SET_PARAM_FOR_DEFAULT):
request.resource_args = {
self.resource_discriminative_param: discriminant
}
return discriminant
return self.default_discriminative_value
def dispatch(self, request: WSGIRequest, *args: typing.Any,
**kwargs: typing.Any) -> Response:
if request.method in self.resource_discriminate_methods:
discriminant = self.get_discriminant(request)
if (settings.API_RESOURCE_SET_PARAM
and (discriminant != self.default_discriminative_value
or settings.API_RESOURCE_SET_PARAM_FOR_DEFAULT)):
request.resource_args = {
self.resource_discriminative_param: discriminant,
}
else:
discriminant = self.default_discriminative_value
resource_dispatch = self.resource_handlers_map.get(discriminant)
if resource_dispatch:
return resource_dispatch(request, *args, **kwargs)
raise Http404()
