问题描述
我正在尝试使用以下序列化器进行嵌套写入-
class UserProfileSerializer(serializers.ModelSerializer):
class Meta:
model = UserProfile
fields = ('company', 'is_admin', 'last_modified', 'uuid')
class UserSerializer(serializers.ModelSerializer):
profile = UserProfileSerializer()
class Meta:
model = User
fields = ('url', 'username', 'email', 'profile')
def create(self, validated_data):
profile_data = validated_data.pop('profile')
user = User.objects.create(**validated_data)
for profile_data in profile_data:
UserProfile.objects.create(user=user, **profile_data)
return user
但是在发布后，我得到以下回溯-
Traceback:
File "/opt/enterpass_app/lib/python2.7/site-packages/django/core/handlers/base.py" in get_response
132. response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/opt/enterpass_app/lib/python2.7/site-packages/django/views/decorators/csrf.py" in wrapped_view
58. return view_func(*args, **kwargs)
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/viewsets.py" in view
87. return self.dispatch(request, *args, **kwargs)
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
466. response = self.handle_exception(exc)
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/views.py" in dispatch
463. response = handler(request, *args, **kwargs)
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/mixins.py" in create
21. self.perform_create(serializer)
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/mixins.py" in perform_create
26. serializer.save()
File "/opt/enterpass_app/lib/python2.7/site-packages/rest_framework/serializers.py" in save
180. self.instance = self.create(validated_data)
File "/opt/enterpass/core/serializers.py" in create
20. UserProfile.objects.create(user=user, **profile_data)
Exception Type: TypeError at /api/users/
Exception Value: create() argument after ** must be a mapping, not unicode
我在这里逐字关注http://www.django-rest-framework.org/api-guide/relations/#writable-nested-serializers的文档，所以不确定我缺少什么。
可能我是在User上执行OneToOneField，而不是像示例那样使用ForeignKey吗？
编辑-想要添加，即使我得到上述Traceback，它仍然会发布到User，而不是User Profile。
1楼
对于在按键上执行OneToOne映射的任何人，这是正确的代码-
class UserProfileSerializer(serializers.ModelSerializer):
class Meta:
model = UserProfile
fields = ('company', 'is_admin', 'last_modified', 'uuid')
class UserSerializer(serializers.ModelSerializer):
profile = UserProfileSerializer()
class Meta:
model = User
fields = ('url', 'username', 'email', 'profile')
def create(self, validated_data):
profile_data = validated_data.pop('profile')
user = User.objects.create(**validated_data)
UserProfile.objects.create(user=user, **profile_data)
return user
请注意， for profile_data in profile_data:删除了以下内容for profile_data in profile_data:
原因是没有多个值。