AccommodationViewSet

models.py

class AdvertisementType(models.Model):
    name = models.CharField(max_length=255, blank=False, null=False, verbose_name='Name')      # name of feature
    created = models.DateField(auto_now=True)   # created date

    def __unicode__(self):
        return u'{0} - {1}'.format(self.id, self.name)

class Accommodation(models.Model):
    name = models.CharField(max_length=255, blank=False, null=False, verbose_name='Name')                   # name of the accommodation
    description = models.TextField(blank=True, null=True, verbose_name='Allgemeine Beschreibung')           # classification of object like '3 Stars'
    objectDescription = models.TextField(blank=True, null=True, verbose_name='Objekt Beschreibung')           # classification of object like '3 Stars'
    roomDescription = models.TextField(blank=True, null=True, verbose_name='Raum Beschreibung')
    bedroomDescription = models.TextField(blank=True, null=True, verbose_name='Schlafzimmer Beschreibung')
    accommodationType = models.ForeignKey(AccommodationType, related_name='accommodationType', verbose_name='Art der Unterkunft')
    advertisementType = models.ForeignKey(AdvertisementType, related_name='advertisementType', verbose_name='Art der Anzeige')
    phone = models.CharField(max_length=13, blank=True, null=True, verbose_name='Telefon')                     # phone of object
    fax = models.CharField(max_length=13, blank=True, verbose_name='Fax')                       # fax of object
    web = models.URLField(blank=True, null=True, verbose_name='Webseite')                                       # website url of object
    email = models.EmailField(blank=True, null=True, verbose_name='Email')                                   # email of object
    contactPerson = models.TextField(blank=True, null=True, verbose_name='Kontaktperson')            # name of contact person
    address = models.ForeignKey(Address, related_name='address', verbose_name='Adresse')                     # address relation of object
    location = models.ForeignKey(Location, related_name='location', verbose_name='GPS Daten')
    animalSupports = models.ManyToManyField(AnimalSupport, related_name='animalSupports', blank=True, null=True, verbose_name='Unterstüzte Tiere')    # which animals are supported
    features = models.ManyToManyField(Feature, related_name='accommodation_features', blank=True, null=True, verbose_name='Ausstattung')

    class Meta:
        verbose_name = 'Unterkunft'
        verbose_name_plural = 'Unterkünfte'

    def __unicode__(self):
        return u'{0} - {1}'.format(self.id, self.name)

serializers.py

class AdvertisementTypeSerializer(serializers.ModelSerializer):
    """
        Serializer for model 'advertisementType'
    """

    class Meta:
        model = AdvertisementType
        fields = ('id', 'name',)

class AccommodationSerializer(serializers.ModelSerializer):
    """
        Serializer for model 'accommodation'
    """

    accommodationType = AccommodationTypeSerializer(read_only=True)
    advertisementType = AdvertisementTypeSerializer(read_only=True)
    address = AddressSerializer(read_only=True)
    location = LocationSerializer(read_only=True)
    animalSupports = AnimalSupportSerializer(read_only=True)
    features = FeatureSerializer(many=True, read_only=True)

    class Meta:
        model = Accommodation
        fields = (
            'id',
            'name',
            'description',
            'objectDescription',
            'roomDescription',
            'bedroomDescription',
            'accommodationType',
            'advertisementType',
            'phone',
            'fax',
            'web',
            'email',
            'contactPerson',
            'address',
            'location',
            'animalSupports',
            'features',
        )

urls.py

router.register('accommodationTypes', AccommodationTypeViewSet)
router.register('accommodations', AccommodationViewSet)

views.py

from webapp.serializers import *
from rest_framework import viewsets
from rest_framework import filters
from django_filters import Filter, FilterSet

class ListFilter(Filter):

    def filter(self, qs, value):
        if not value:
            return qs

        self.lookup_type = 'in'
        values = value.split(',')
        return super(ListFilter, self).filter(qs, values)

class AccommodationFilter(FilterSet):
    ids = ListFilter(name='id')
    accommodationType_ids = ListFilter(name='accommodationType_id')

    class Meta:
        model = Accommodation
        fields = ['ids', 'accommodationType_ids']


class AccommodationViewSet(viewsets.ReadOnlyModelViewSet):
    """
        REST API endpoint for 'accommodation' resource
    """
    queryset = Accommodation.objects.all()
    serializer_class = AccommodationSerializer
    filter_backends = (filters.DjangoFilterBackend,)
    filter_class = AccommodationFilter

I called the url http://localhost:8000/accommodations?accommodationType_id__in=1,2