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我是 django 的新手,我目前正在使用 djangorestframework 进行一个小项目。我在创建活动流时遇到了问题,但我偶然发现了 getstream.io(stream-django),但我一直无法理解它。我想看一个如何使用 DRF 和 stream-django 创建活动流的示例。

我将删除我正在使用的模型和序列化程序。非常感谢。

模型.py

class Imprest(models.Model, Activity):
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    description = models.TextField()
    amount = models.PositiveIntegerField()
    is_approved = models.BooleanField(default=False)
    created_at = models.DateTimeField(default=datetime.now)


    def __str__(self):
        return 'Raised by: {}'.format(self.user) 

序列化程序.py

class ImprestSerializer(serializers.ModelSerializer):
    user = UserSerializer(read_only=True, required=False)

    class Meta:
        model = Imprest
        fields = '__all__'

    def get_validation_exclusions(self, instance=None):
         exclusions = super(ImprestSerializer, self).get_validation_exclusions(instance)

        return exclusions + ['user']

视图.py

class ImprestViewSet(ModelViewSet):
    queryset = Imprest.objects.all()
    serializer_class = ImprestSerializer
    permission_classes = permissions.IsAuthenticated,

    def get_permissions(self):
        if self.request.method in permissions.SAFE_METHODS:
            return permissions.AllowAny(),
        return permissions.IsAuthenticated(),

    def perform_create(self, serializer):
        instance = serializer.save(raised_by=self.request.user)
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