扩展django用户django-rest_framework给了我KeyError


Extending django User django-rest_framework gives me KeyError

我不熟悉django rest_框架，我已经发布了，我已经根据django文档扩展了auth_用户，但这让我很难……

型号.py

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class UserProfile(models.Model):
    user = models.OneToOneField(User, primary_key=True, on_delete=models.CASCADE)
    national_id = models.CharField(max_length=10, blank=True, null=True)
    mobile = models.CharField(max_length=10)
    pin = models.IntegerField()
    pattern = models.IntegerField(blank=True, null=True)
    fingerprint = models.CharField(max_length=45, blank=True, null=True)

    class Meta:
        managed = False
        db_table = 'user_profile'

序列化程序.py

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class UserSerializer(serializers.ModelSerializer):
    national_id = serializers.CharField(source='userprofile.national_id', allow_null=True, required=False)
    mobile = serializers.CharField(source='userprofile.mobile')
    pin = serializers.IntegerField(source='userprofile.pin', write_only=True)
    pattern = serializers.IntegerField(source='userprofile.pattern', write_only=True)
    fingerprint = serializers.CharField(source='userprofile.fingerprint', write_only=True, allow_null=True, required=False)

    class Meta:
        model = User
        fields = ('id', 'username', 'password', 'first_name', 'last_name', 'email', 'national_id', 'mobile', 'pin', 'pattern', 'fingerprint')
        write_only_fields = ('password',)
        read_only_fields = ('last_login', 'is_superuser', 'is_staff', 'is_active', 'date_joined')

    def create(self, validated_data):
        user = User(
            username=validated_data['username'],
            first_name=validated_data['first_name'],
            last_name=validated_data['last_name'],
            email=validated_data['email'],
            )
        user.set_password(validated_data['password'])
        user.save()
        userprofile = UserProfile(
            user=user,
            national_id=validated_data['national_id'],
            mobile=validated_data['mobile'],
            pin=validated_data['pin'],
            pattern=validated_data['pattern'],
            fingerprint=validated_data['fingerprint'],
            )
        userprofile.save()
        return user

号

视图.py

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class UserView(viewsets.ModelViewSet):
    serializer_class = UserSerializer
    queryset = get_user_model().objects

网址.py

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from django.conf.urls import include, url
from django.contrib import admin
from rest_framework.routers import DefaultRouter

from restful.views import *

router = DefaultRouter()

router.register(r'availability-notification', AvailabiltyNotificationView)
router.register(r'bank', BankView)
router.register(r'recipient', RecipientView)
router.register(r'user', UserView)

urlpatterns = [
    url(r'^', include(router.urls)),
    url(r'^api-auth/', include('rest_framework.urls', namespace='rest_framework')),
    url(r'^admin/', admin.site.urls),

。

但一直在给我：

Environment:

Request Method: POST Request URL: http://localhost:8000/user/

Django Version: 1.10.2 Python Version: 3.5.2 Installed Applications:
['django.contrib.admin', 'django.contrib.auth',
'django.contrib.contenttypes', 'django.contrib.sessions',
'django.contrib.messages', 'django.contrib.staticfiles',
'rest_framework', 'restful'] Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']

Traceback:

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\exception.py"
in inner
39. response = get_response(request)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\base.py"
in _get_response
187. response = self.process_exception_by_middleware(e, request)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\base.py"
in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\views\decorators\csrf.py"
in wrapped_view
58. return view_func(*args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\viewsets.py"
in view
87. return self.dispatch(request, *args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in dispatch
474. response = self.handle_exception(exc)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in handle_exception
434. self.raise_uncaught_exception(exc)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in dispatch
471. response = handler(request, *args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\mixins.py"
in create
21. self.perform_create(serializer)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\mixins.py"
in perform_create
26. serializer.save()

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\serializers.py"
in save
192. self.instance = self.create(validated_data)

File"C:\Users\echavez\Source\ws
estful\serializers.py" in create
45. national_id=validated_data['national_id'],

Exception Type: KeyError at /user/ Exception Value: 'national_id'

号

我知道这是个新手问题，但我真的需要帮助！

事先谢谢。

相关讨论

您获取配置文件数据的方式不正确。validated_data是用户和配置文件数据的字典，您将分别保存这些数据。

像这样拿。

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profile_data = validated_data.pop('userprofile')

请注意，我们弹出了用户配置文件数据，所以现在您只剩下已验证的用户数据了。所以完整的流程如下

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profile_data = validated_data.pop('userprofile')
user = User.objects.create(**validated_data)
UserProfile.objects.create(user=user, **profile_data)
return user

号

看看这里

http://www.django-rest-framework.org/api-guide/serializer/可写嵌套表示

相关讨论

多亏了Lal Zada给我指明了正确的方向，我的代码最终看起来像这样，并且可以工作：

序列化程序.py

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class UserSerializer(serializers.ModelSerializer):
    national_id = serializers.CharField(source='userprofile.national_id', allow_null=True, required=False)
    mobile = serializers.CharField(source='userprofile.mobile')
    pin = serializers.IntegerField(source='userprofile.pin', write_only=True)
    pattern = serializers.IntegerField(source='userprofile.pattern', write_only=True)
    fingerprint = serializers.CharField(source='userprofile.fingerprint', write_only=True, allow_null=True, required=False)

    bank_accounts = UserBankAccountSerializer(many=True)

    class Meta:
        model = User
        fields = ('id', 'username', 'password', 'first_name', 'last_name', 'email', 'national_id', 'mobile', 'pin', 'pattern', 'fingerprint', 'bank_accounts')
        write_only_fields = ('password',)
        read_only_fields = ('last_login', 'is_superuser', 'is_staff', 'is_active', 'date_joined')

    def create(self, validated_data):
        user = User(
            username=validated_data['username'],
            first_name=validated_data['first_name'],
            last_name=validated_data['last_name'],
            email=validated_data['email'],
            )
        user.set_password(validated_data['password'])
        user.save()
        profile_data = validated_data.pop('userprofile')
        userprofile = UserProfile(
            user=user,
            national_id=profile_data['national_id'],
            mobile=profile_data['mobile'],
            pin=profile_data['pin'],
            pattern=profile_data['pattern'],
            fingerprint=profile_data['fingerprint'],
            )
        userprofile.save()
        return user

因为，这不是一个嵌套的模型(银行帐户是嵌套的)，所以当我这样做时：

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profile_data = validated_data.pop('userprofile')
user = User.objects.create(**validated_data)
UserProfile.objects.create(user=user, **userprofile)
return user

。

把我扔了…

Environment:

Request Method: POST Request URL: http://localhost:8000/user/

Django Version: 1.10.2 Python Version: 3.5.2 Installed Applications:
['django.contrib.admin', 'django.contrib.auth',
'django.contrib.contenttypes', 'django.contrib.sessions',
'django.contrib.messages', 'django.contrib.staticfiles',
'rest_framework', 'restful'] Installed Middleware:
['django.middleware.security.SecurityMiddleware',
'django.contrib.sessions.middleware.SessionMiddleware',
'django.middleware.common.CommonMiddleware',
'django.middleware.csrf.CsrfViewMiddleware',
'django.contrib.auth.middleware.AuthenticationMiddleware',
'django.contrib.messages.middleware.MessageMiddleware',
'django.middleware.clickjacking.XFrameOptionsMiddleware']

Traceback:

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\exception.py"
in inner
39. response = get_response(request)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\base.py"
in _get_response
187. response = self.process_exception_by_middleware(e, request)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\core\handlers\base.py"
in _get_response
185. response = wrapped_callback(request, *callback_args, **callback_kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\views\decorators\csrf.py"
in wrapped_view
58. return view_func(*args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\viewsets.py"
in view
87. return self.dispatch(request, *args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in dispatch
474. response = self.handle_exception(exc)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in handle_exception
434. self.raise_uncaught_exception(exc)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\views.py"
in dispatch
471. response = handler(request, *args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\mixins.py"
in create
21. self.perform_create(serializer)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\mixins.py"
in perform_create
26. serializer.save()

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages
est_framework\serializers.py"
in save
192. self.instance = self.create(validated_data)

File"C:\Users\echavez\Source\ws
estful\serializers.py" in create
49. user = User.objects.create(**validated_data)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\manager.py"
in manager_method
85. return getattr(self.get_queryset(), name)(*args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\query.py"
in create
397. obj = self.model(**kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\contrib\auth\base_user.py"
in init
68. super(AbstractBaseUser, self).init(*args, **kwargs)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\base.py"
in init
550. setattr(self, prop, kwargs[prop])

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\fields
elated_descriptors.py"
in set
500. manager.set(value)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\fields
elated_descriptors.py"
in set
687. self.add(*objs, bulk=bulk)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\fields
elated_descriptors.py"
in add
597. self.field.name: self.instance,

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\query.py"
in update
637. rows = query.get_compiler(self.db).execute_sql(CURSOR)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\sql\compiler.py"
in execute_sql
1148. cursor = super(SQLUpdateCompiler, self).execute_sql(result_type)

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\sql\compiler.py"
in execute_sql
824. sql, params = self.as_sql()

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\sql\compiler.py"
in as_sql
1102. val.prepare_database_save(field),

File
"C:\Users\echavez\Envs\YEiPii\lib\site-packages\django\db\models\base.py"
in prepare_database_save
999. raise ValueError("Unsaved model instance %r cannot be used in an ORM query." % self)

Exception Type: ValueError at /user/ Exception Value: Unsaved model
instance cannot be used in an ORM query.

号

现在我将完成创建以包括嵌套的和更新和删除…

谢谢，拉尔