Django Rest Framework Mongoengine - PUT/PATCH 与 ReferenceField 的 GET

Question

我有两个 mongoengine 文档 models as:

from mongoengine import *

class Doc1(Document):
  doc1_field1 = StringField(max_length=100)
  doc1_field2 = StringField(max_length=100)

class Doc2(Document):
  doc2_field1 = ReferenceField(Doc1)
  doc2_field2 = StringField(max_length=100)

在serializers.py:

from rest_framework_mongoengine import serializers
from .models import Doc1, Doc2

class Doc1Serializer(serializers.DocumentSerializer):

   class Meta:          
      model = Doc1
      fields = '__all__'

class Doc2Serializer(serializers.DocumentSerializer):

   doc2_field1 = Doc1Serializer()

   class Meta:
      model = Doc2
      fields = ('doc2_field1', 'doc2_field2')

views.py

from rest_framework_mongoengine import viewsets
from .models import Doc2
from .serializers import Doc2Serializer

class Doc2ViewSet(viewsets.ModelViewSet):

   lookup_field = 'pk'

   serializer_class = Doc2Serializer

   def get_queryset(self):
     return Doc2.objects.all()

我想要实现的是当我发出 GET 请求时 doc2_field1 应该基于Doc1Serializer 现在确实是这样。问题是当我尝试 PUT/PATCH doc2_field1 时使用 models.py 中定义的新 ObjectID 引用。那就是我得到以下信息的地方：

"non_field_errors": [ "Invalid data. Expected a dictionary, but got str." ]

所以我的问题是，是否有办法在 GET 中取消引用字段，但允许在 [=21= 中引用对象].

预期：

获取：

{
  "doc2_field1": {
  "doc1_field1": "Text Value 1",
  "doc1_field2": "Text Value 2"
  },
  "doc2_field2": "Text Value"
}

PUT/PATCH:

{
  "doc2_field1": "5ae1a104e35e8620801798f3"
  "doc2_field2": "Text Value"
}

Answer 1

您可以覆盖 Doc2Serializer 的 to_representation 方法以仅显示 GET 请求的详细信息：

class Doc2Serializer(serializers.DocumentSerializer):

   class Meta:
      model = Doc2
      fields = ('doc2_field1', 'doc2_field2')

   def to_representation(self, instance):
      self.fields['doc2_field1'] = Doc1Serializer()
      return super(Doc2Serializer, self).to_representation(instance)

Django Rest Framework Mongoengine - PUT/PATCH 与 ReferenceField 的 GET

Django Rest Framework Mongoengine - PUT/PATCH vs GET for ReferenceField

python

django

mongoengine

django-rest-framework