Question

我正在将django-mptt与django-rest-framework一起使用，并且对于递归序列化，我正在使用djangorestframework-recursive程序包，但是它还返回父节点之外的子节点。我尝试过to_representation（）也导致结果相同。

from rest_framework import serializers
from rest_framework_recursive.fields import RecursiveField
from .models import Category

class CategorySerializer(serializers.ModelSerializer):
    children = RecursiveField(many=True)

    class Meta:
        model = Category  
      fields = ('id','name','parent', 'children')

views.py

from rest_framework import generics
from .serializers import CategorySerializer
from .models import Category

class CategoryListAPI(generics.ListCreateAPIView):
    queryset = Category.objects.all()
    serializer_class = CategorySerializer

输出为

[   {
        "id": 1,
        "name": "Rock",
        "parent": null,
        "children": [
            {
                "id": 4,
                "name": "Corase Rock",
                "parent": 1,
                "children": []
            },
            {
                "id": 2,
                "name": "Hard Rock",
                "parent": 1,
                "children": []
            },
            {
                "id": 3,
                "name": "Soft Rock",
                "parent": 1,
                "children": []
            }
        ]
    },
    {
        "id": 4,
        "name": "Corase Rock",
        "parent": 1,
        "children": []
    },
    {
        "id": 2,
        "name": "Hard Rock",
        "parent": 1,
        "children": []
    },
    {
        "id": 3,
        "name": "Soft Rock",
        "parent": 1,
        "children": []
    }
]

Answer 1

如果有人在此回答，我已经解决了这个问题。 views.py文件queryset中应该存在错误：

queryset = Category.objects.root_nodes()

django-mptt序列化还返回父节点之外的子节点

1 个答案: