序列化器作为字段在 json 中不可见

Question

型号

类 makitVerifications (models.Model)：

Matter_fk = models.ForeignKey(Matter,on_delete=models.CASCADE , related_name = "makit_validate")

user_fk =  models.ForeignKey('auth.User',on_delete=models.CASCADE ,  related_name = 'verification_by'   , )

序列化器

类 UserVerifyCountSerializer (serializers.ModelSerializer)：

# Tried makit_validate = makitSerializer (read_only = True)

class Meta :

    model = makitVerifications
    fields = (  'user_fk', 'makit_validate', 'Matter_fk')

UserVerifyCountSerializer._declared_fields['makit_validate']= makitSerializer (read_only = True)

查看

类 UserVerfiyCountViewSet(generics.ListCreateAPIView)：

serializer_class = UserVerifyCountSerializer

def get_queryset(self):

    queryset = makitVerifications.objects.all()

    return queryset

JSON

{ “计数”：2， “下一个”：空， “上一个”：空， “结果”： [ { “user_fk”：1， “物质_fk”：1 }, { “user_fk”：1， “物质_fk”：1 } ]

JSON 中缺少预期为嵌套对象的字段“makit_validate”。如何在 json 中获取相关模型的嵌套对象。

我还尝试了文档中的一个示例，但 JSON 中缺少相同的字段

还有如何从嵌套在上述序列化程序类中的对象中省略/禁用字段

Makie Serilazer

类 makitSerializer(serializers.ModelSerializer):

kamaz = kamazSerializer(many=True,read_only=True)

facilities = FacilitiesSerializer (many =True,read_only=True)

class Meta :

    model = Makit

    fields = '__all__'

## Makit Model ##
class Makit (models.Model): 
    pincode = models.IntegerField()

    area = models.CharField(max_length=200)

    street = models.CharField(max_length=200)

    landmark = models.CharField(max_length=100,blank=True , null = True)

    contact_no= models.BigIntegerField()

Answer 1

来自这里的文档：Serializer fields

试试：

makit_validate = makitSerializer(source="the_field_you_find_makit" read_only = True)