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class DatabaseByClientList(RetrieveUpdateDestroyAPIView):
        serializer_class = DatabaseSerializer

        def get_queryset(self):
            client_id = self.kwargs['client_id']
            return Database.objects.filter(client_id=client_id)

class Database(models.Model):
    def __unicode__(self):
        return unicode(self.id)

    class Meta:
        ordering = ['db_name']

    client_id = models.ForeignKey(ClientInfo)
    db_name = models.CharField(max_length=30, blank=True)
    db_host = models.CharField(max_length=30, blank=True)
    db_user = models.CharField(max_length=30, blank=True)
    db_pass = models.CharField(max_length=30, blank=True)
    db_type = models.CharField(max_length=30, blank=True)

class DatabaseSerializer(serializers.ModelSerializer):

    client_id = serializers.SlugRelatedField(queryset=ClientInfo.objects.all(),
                                           slug_field='access_id')

    class Meta:
        model = Database
        fields = ('id', 'client_id', 'db_name', 'db_host', 'db_user', 'db_pass', 'db_type')

return Database.objects.filter(client_id=client_id)