[英]how to perform post request on nested serailizers in django rest framework
嗨,我是 django rest 框架的新手,我能夠執行 put delete 和 get 操作,但無法執行 post 操作
模型.py
class User(auth.models.User, auth.models.PermissionsMixin):
def __str__(self):
return "@{}".format(self.username)
class User_log(models.Model):
user = models.OneToOneField(auth.models.User,on_delete=models.CASCADE,related_name='user_logs')
fullname=models.CharField(max_length=255)
fb_login=models.BooleanField(default=False)
def __str__(self):
return self.fullname
序列化程序.py
class userSerializers(serializers.ModelSerializer):
password1=serializers.CharField(source="user.password1",write_only=True)
password2=serializers.CharField(source="user.password2",write_only=True)
fullname=serializers.CharField(source='user_logs.fullname')
fb=serializers.BooleanField(source='user_logs.fb_login')
class Meta:
model = User
fields=('id','username','email','password1','password2','fullname','fb')
related_fields = ['user_logs']
def update(self, instance, validated_data):
# Handle related objects
for related_obj_name in self.Meta.related_fields:
data = validated_data.pop(related_obj_name)
related_instance = getattr(instance, related_obj_name)
# Same as default update implementation
for attr_name, value in data.items():
setattr(related_instance, attr_name, value)
related_instance.save()
return super(userSerializers,self).update(instance, validated_data)
網址.py
from django.urls import path,include
from django.contrib.auth import views as auth_views
from . import views
from rest_framework import routers
router=routers.DefaultRouter()
router.register('accounts',views.Userview,basename='user')
app_name = 'accounts'
urlpatterns = [
path('login/', auth_views.LoginView.as_view(template_name="accounts/login.html"),name='login'),
path('logout/', auth_views.LogoutView.as_view(), name="logout"),
path('signup/', views.SignUp.as_view(), name="signup"),
path('password-reset/',
auth_views.PasswordResetView.as_view(
template_name='accounts/password_reset_email.html'
),
name='password_reset'),
path('password-reset/done/',
auth_views.PasswordResetDoneView.as_view(
template_name='accounts/password_reset_done.html'
),
name='password_reset_done'),
path('password-reset-confirm/<uidb64>/<token>/',
auth_views.PasswordResetConfirmView.as_view(
template_name='accounts/password_reset_confirm.html'
),
name='password_reset_confirm'),
path('password-reset-complete/',
auth_views.PasswordResetCompleteView.as_view(
template_name='accounts/password_reset_complete.html'
),
name='password_reset_complete'),
path('',include(router.urls)),
]
視圖.py
class Userview(viewsets.ModelViewSet):
def get_serializer_class(self):
return userSerializers
def get_queryset(self):
return User.objects.all()
def list(self,request):
queryset = User.objects.all()
serializer=userSerializers(queryset,many=True)
if serializer.is_valid:
return Response(serializer.data)
這是我執行獲取請求時的 json 格式
[
{
"id": 1,
"username": "karm",
"email": "karm@gmail.com",
"fullname": "ss",
"fb": false
}
]
如前所述,每當我執行 put delete 或使其工作時,但它不是 post 的情況,我得到的錯誤是:
AssertionError at /accounts/accounts/
.create()
方法默認不支持可寫的點源字段。 為序列化程序accounts.serializers.userSerializers
編寫顯式.create()
方法,或在點源序列化程序字段上設置read_only=True
。
您必須像使用更新方法一樣編寫創建方法。 在您的 serializer.py 文件中嘗試此代碼。
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
希望這對你有用。
這里需要考慮兩點:
write_only
。 相反,在序列化程序的Meta
塊中使用extra_kwargs
。create
方法。 下面的粗略示例。有關 DRF 序列化程序中的只寫字段的更多信息,請參閱文檔中的此內容。
class userSerializers(serializers.ModelSerializer):
password1=serializers.CharField(source="user.password1")
password2=serializers.CharField(source="user.password2")
fullname=serializers.CharField(source='user_logs.fullname')
fb=serializers.BooleanField(source='user_logs.fb_login')
class Meta:
model = User
fields
fields=['id','username','email','password1','password2','fullname','fb']
related_fields = ['user_logs']
extra_kwargs = {
'password1': {'write_only': True},
'password2': {'write_only': True},
}
def create(self, validated_data): // adjust to fit your actual User model
user = User(
email=validated_data['email'],
username=validated_data['username']
)
user.set_password(validated_data['password'])
user.save()
return user
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