Python “Django REST POST”列中的空值；“用户id”；违反非空约束

在用户字段中发送创建新项的post请求后，我出现错误-在“用户id”列中返回空值违反了非空约束详细信息：失败的行包含（61，我的公司，{2,3}，2020-08-08 10:41:54.355926+00，我的描述，2，2，空）。发送JSON的我的数据

{
    "name": "My Company", 
    "members":[2, 3] , 
    "user": 2, 
    "description": "My desc", 
    "status": 2, 
    "theme": 2
}

序列化程序.py

class AccountSerializer(serializers.ModelSerializer):
    user=serializers.StringRelatedField(read_only=False)
    class Meta:
        model=Account
        fields='__all__'

class UserSerializer(serializers.ModelSerializer):
    class Meta:
        model = User
        fields = '__all__'

class CompanySerializer(serializers.ModelSerializer):
    user = UserSerializer(read_only=True)
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        try:
            if self.context['request'].method in ['GET']:
                self.fields['members'] = serializers.SerializerMethodField()
        except KeyError:
            pass

    class Meta:
        model = Company
        fields = '__all__'
        
    def get_members(self, obj):
        accounts = Account.objects.filter(id__in=obj.members)
        return AccountSerializer(accounts, many=True).data
        
class CompanyListSerializer(serializers.ModelSerializer):
    class Meta: 
        model = Company
        fields = '__all__'

---

看看您的其他问题，似乎您需要

user=UserSerializer（read_only=True）

来获取请求。如果是,

class CompanySerializer(serializers.ModelSerializer):
    def __init__(self, *args, **kwargs):
        super().__init__(*args, **kwargs)
        try:
            if self.context['request'].method in ['GET']:
                self.fields['members'] = serializers.SerializerMethodField()
                self.fields['user'] = UserSerializer()
        except KeyError:
            pass

    class Meta:
        model = Company
        fields = '__all__'
        
    def get_members(self, obj):
        accounts = Account.objects.filter(id__in=obj.members)
        return AccountSerializer(accounts, many=True).data

---

您希望编写嵌套关系。看这里。哦，谢谢你。但这对我来说很难理解（显示您的post请求数据）。