class PlayerInGame(models.Model):
    player = models.ForeignKey(Player)
    game = models.ForeignKey(Game)
    created = models.DateTimeField(auto_now_add=True)

    class Meta:
        unique_together = (("player", "game"),)
        ordering = ('created',)

class PlayerInGameSerializer(serializers.ModelSerializer):
    class Meta:
        model = PlayerInGame
        fields = '__all__'
        read_only_fields = ['game', 'created']


class PlayerInGameDetail(CreateAPIView):
    queryset = PlayerInGame.objects.all()
    serializer_class = PlayerInGameSerializer

    def perform_create(self, serializer):
        return serializer.save(game=self.kwargs['pk'])