old_contents: from django_filters import FilterSet, CharFilter, IsoDateTimeFilter
  from ui.models import Warc, Seed, Harvest
  from django_filters import Filter
  from django_filters.fields import Lookup
  
  
  class ListFilter(Filter):
      def filter(self, qs, value):
          return super(ListFilter, self).filter(qs, Lookup(value.split(u","), "in"))
  
  
  class WarcFilter(FilterSet):
      # Allows queries like /api/v1/warcs/?seedset=39c00280274a4db0b1cb5bfa4d527a1e
      seedset = CharFilter(name="harvest__seed_set__seedset_id")
      seed = ListFilter(name="harvest__seed_set__seeds__seed_id", distinct=True)
      # TODO: This will need to be changed to use historical seeds once #54 is completed.
      harvest_date_start = IsoDateTimeFilter(name="harvest__date_started", lookup_type='gte')
      harvest_date_end = IsoDateTimeFilter(name="harvest__date_started", lookup_type='lte')
  
      class Meta:
          model = Warc
          fields = ['seedset']
  
new_contents: from django_filters import FilterSet, CharFilter, IsoDateTimeFilter
  from ui.models import Warc, Seed, Harvest
  from django_filters import Filter
  from django_filters.fields import Lookup
  
  
  class ListFilter(Filter):
      def filter(self, qs, value):
          return super(ListFilter, self).filter(qs, Lookup(value.split(u","), "in"))
  
  
  class WarcFilter(FilterSet):
      # Allows queries like /api/v1/warcs/?seedset=39c00280274a4db0b1cb5bfa4d527a1e
      seedset = CharFilter(name="harvest__historical_seed_set__seedset_id")
      seed = ListFilter(name="harvest__historical_seeds__seed_id", distinct=True)
      harvest_date_start = IsoDateTimeFilter(name="harvest__date_started", lookup_type='gte')
      harvest_date_end = IsoDateTimeFilter(name="harvest__date_started", lookup_type='lte')
  
      class Meta:
          model = Warc
          fields = ['seedset']
  
subject: Fix to take into account history in API queries.