Python 覆盖更新和to_表示方法在POST请求时抛出AttributeError
我尝试在Onetofield关系中序列化两个模型中的字段。因此,我覆盖了序列化程序中的更新和to_表示方法。 对于GET请求,一切正常,但是POST请求抛出 AttributeError at/personalData/ “OrderedDict”对象没有属性“firstname” 错误 我的模型:Python 覆盖更新和to_表示方法在POST请求时抛出AttributeError,python,django,django-rest-framework,Python,Django,Django Rest Framework,我尝试在Onetofield关系中序列化两个模型中的字段。因此,我覆盖了序列化程序中的更新和to_表示方法。 对于GET请求,一切正常,但是POST请求抛出 AttributeError at/personalData/ “OrderedDict”对象没有属性“firstname” 错误 我的模型: class UserData(models.Model): user = models.OneToOneField(User) gender = models.CharField(
class UserData(models.Model):
user = models.OneToOneField(User)
gender = models.CharField(max_length=20, blank=True)
firstname = models.CharField(max_length=50, blank=True)
lastname = models.CharField(max_length=50, blank=True)
nationality = models.CharField(max_length=30, blank=True)
class Employee(models.Model):
userData = models.OneToOneField(UserData)
birthdate = models.CharField(max_length=30, blank=True)
jobTitle = models.CharField(max_length=50, blank=True)
我的序列化程序类:
class EmployeePersonalDataSerializer(serializers.Serializer):
firstname = serializers.CharField()
lastname = serializers.CharField()
birthdate = serializers.CharField()
gender = serializers.CharField()
jobTitle = serializers.CharField()
nationality = serializers.CharField()
def update(self, instance, validated_data):
instance.firstname = validated_data.get('firstname', instance.firstname)
instance.lastname = validated_data.get('lastname', instance.lastname)
instance.gender = validated_data.get('gender', instance.gender)
instance.nationality = validated_data.get('nationality', instance.nationality)
instance.employee.jobTitle = validated_data.get('jobTitle', instance.employee.jobTitle)
instance.employee.birthdate = validated_data.get('birthdate', instance.employee.birthdate)
instance.employee.save()
instance.save()
return instance
def to_representation(self, obj):
return {
'firstname': obj.firstname,
'lastname': obj.lastname,
'birthdate': obj.employee.birthdate,
'gender': obj.gender,
'jobTitle': obj.employee.jobTitle,
'nationality': obj.nationality
}
编辑:
完整的回溯:
Traceback:
File "/home/user/.local/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
132. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/home/user/.local/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
58. return view_func(*args, **kwargs)
File "/home/user/.local/lib/python2.7/site-packages/django/views/generic/base.py" in view
71. return self.dispatch(request, *args, **kwargs)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
466. response = self.handle_exception(exc)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/views.py" in dispatch
463. response = handler(request, *args, **kwargs)
File "/myproject/views.py" in post
177. serializer.update(instance=userData, validated_data=serializer.data)
File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py" in data
487. ret = super(Serializer, self).data
File "/usr/local/lib/python2.7/dist-packages/rest_framework/serializers.py" in data
225. self._data = self.to_representation(self.validated_data)
File "/myproject/serializers.py" in to_representation
226. 'firstname': obj.firstname,
Exception Type: AttributeError at /personalData/
Exception Value: 'OrderedDict' object has no attribute 'firstname'
来自DRF文档
如果要实现读写关系字段,还必须
实现.to_internal_value(self,data)方法
因此,您希望实现一个读写(POST/GET)字段,因此您需要在序列化程序中实现
.to\u internal\u value
方法 您需要使用嵌套序列化程序。错误在于员工没有名字,而事实上没有。员工和用户数据都需要序列化程序。请显示完整的回溯。