Note that if your API doesn't include any object level permissions, you may optionally exclude the `self.check_object_permissions`, and simply return the object from the `get_object_or_404` lookup.
#### `get_filter_backends(self)`
Returns the classes that should be used to filter the queryset. Defaults to returning the `filter_backends` attribute.
May be overridden to provide more complex behavior with filters, such as using different (or even exclusive) lists of filter_backends depending on different criteria.
For example:
def get_filter_backends(self):
if "geo_route" in self.request.query_params:
return (GeoRouteFilter, CategoryFilter)
elif "geo_point" in self.request.query_params:
return (GeoPointFilter, CategoryFilter)
return (CategoryFilter,)
#### `get_serializer_class(self)`
Returns the class that should be used for the serializer. Defaults to returning the `serializer_class` attribute.
