django-rest-framework Instagram 喜欢的追随者系统

Question

所以事情是当经过身份验证的用户（我们称之为用户 1）关注另一个用户（我们称之为用户 2）时。然后 user2 被添加到 user1 的关注列表中，user1 应该自动添加到 user2 的关注者 list.This 我想要实现的目标。谁能帮我解决逻辑问题？

models.py

class Follower(models.Model):
    user = models.OneToOneField(UserModel,related_name="followers", verbose_name=_("User"), on_delete=models.CASCADE)
    follower_user = models.ManyToManyField(UserModel, verbose_name=_("Follower"),related_name='follower_user')


class Following(models.Model):
    user = models.OneToOneField(UserModel, related_name="following",unique=False, verbose_name=_("User"), on_delete=models.CASCADE)
    following_user = models.ManyToManyField(UserModel, verbose_name=_("Following"), related_name='following_user')

serializers.py

class FollowerSerializer(ModelSerializer):

    class Meta:
        model = Follower
        fields = ('user','follower_user')
        read_only_fields = ()


class FollowingSerializer(ModelSerializer):

    class Meta:
        model = Following
        fields = ('user','following_user')
        read_only_fields = ()

views.py

class FollowerView(ListAPIView):
    queryset = Follower.objects.all()
    serializer_class = FollowerSerializer
    permission_classes = [IsAuthenticated]


class FollowingView(ListCreateAPIView):
    queryset = Following.objects.all()
    serializer_class = FollowingSerializer
    permission_classes = [IsAuthenticated]

Answer 1

您需要添加一个字段来捕获关注者 ID，以便在关注序列化程序中创建，因为您一次只能创建一个关注者。

class FollowingSerializer(ModelSerializer):
    new_following = serializers.PrimaryKeyRelatedField(queryset=UserModel.objects.all(), required=True, write_only=True)
    class Meta:
        model = Following
        fields = ('user', 'following_user', 'new_following')
        read_only_fields = ('following_user')

    def create(self, validated_data):
        user = validated_data['user']
        new_follwoing = validated_data['new_following']
        user.following.following_user.add(new_follwoing)
        new_follwoing.followers.following_user.add(user)

        return user.following

django-rest-framework Instagram 喜欢的追随者系统

django-rest-framework Instagram like follower system

python

django-models

django-views

django-serializer

django-rest-framework

models.py

serializers.py

views.py