如何创建具有多个模型的序列化器，这些模型相互连接?

Question

所以我有UserAccount模型，它有这些字段:

class UserAccount(AbstractBaseUser, PermissionsMixin):

email = models.EmailField(max_length=255, unique=True)
iin = models.CharField(max_length=255, unique=True)
first_name = models.CharField(max_length=255)
last_name = models.CharField(max_length=255)
father_name = models.CharField(max_length=255)
phone_number = models.CharField(max_length=255)
is_active = models.BooleanField(default=True)
is_staff = models.BooleanField(default=False)
is_superuser = models.BooleanField(default=False)
is_doctor = models.BooleanField(default=False)
objects = UserAccountManager()
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = ['iin', 'first_name', 'last_name','father_name', 'phone_number']
def get_full_name(self):
return self.first_name + ' ' + self.last_name + ' ' + self.father_name
def __str__(self):
return self.email

还有这个将user作为外键的类:

class Patient(models.Model):
user = models.ForeignKey(UserAccount, on_delete=models.CASCADE)
district = models.CharField(max_length=255)
def __str__(self):
return self.user.email

所以我的问题是如何为注册创建序列化器?我应该如何创建一个UserAccount和病人有UserAccount作为一个外键在一起??这是我的毕业论文

这行不通

class RegistrationSerializer(serializers.ModelSerializer):
class PatientCreateSerializer(serializers.ModelSerializer):

class Meta:
model = Patient
exclude = ['user']

patient = PatientCreateSerializer()
class Meta:
model = UserAccount
fields = '__all__'
def create(self, validated_data):
patient_data = validated_data.pop('patient')
user_instance = UserAccount.objects.create(**validated_data)
Patient.objects.create(user=user_instance,**patient_data)
return user_instance

另外，我应该如何在POSTMAN中发送数据?像这样的吗?

{
"patient": {
"district": "2323232",
"user": [{
"email": "[e-mail]",
"iin": "02020202002",
"first_name": "Some",
"last_name": "Somee",
"father_name": "Someuly",
"phone_number": "[phone]",
"password": "password",
"re_password": "password"
}]
}
}

Answer 1

一切OK，但是PatientCreateSerializer不应该放在

例如

class PatientCreateSerializer(serializers.ModelSerializer):

class Meta:
model = Patient
exclude = ['user']
class RegistrationSerializer(serializers.ModelSerializer):   
patient = PatientCreateSerializer()
class Meta:
model = UserAccount
fields = '__all__'
def create(self, validated_data):
patient_data = validated_data.pop('patient')
user_instance = UserAccount.objects.create(**validated_data)
Patient.objects.create(user=user_instance,**patient_data)
return user_instance

并加入患者。用户外键参数related_name=patiend。会出现诸如"非领域患者"之类的错误。-手动描述字段