def containers_in_use(self, request, *args, **kwargs):
"""
Returns a list of Containers that are associated with Distilleries.
This filters out any Containers that are unused.
"""
filtered_queryset = Container.objects.filter(distillery__isnull=False)
parents = filtered_queryset.distinct()
serializer = ContainerSerializer(parents,
many=True,
context={'request': request})
return Response(serializer.data)
def _get_data_by_name(self, request):
"""
Takes a REST API request with an optional names argument consisting of
a comma-separated list of Container names. Returns the serialized data
for the specified Containers or the data for all Containers if no names
were given.
"""
queryset = Container.objects.all().order_by('name')
names = self.request.query_params.get('names', None)
filtered_queryset = self._filter_by_names(queryset, names)
serializer = ContainerSerializer(filtered_queryset,
many=True,
context={'request': request})
return serializer.data
class DistilleryDetailSerializer(serializers.ModelSerializer):
"""Serializer for a |Distillery| object."""
id = serializers.ReadOnlyField(source='pk') # pylint: disable=C0103
container = ContainerSerializer()
contexts = ContextSerializer(many=True)
class Meta(object):
"""Metadata options."""
model = Distillery
depth = 2
fields = (
'collection',
'container',
'contexts',
'id',
'name',
'url',
)