Python 无法在没有 `.queryset` 属性或覆盖 `.get_queryset()` 方法的视图上应用 DjangoModelPermissions
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Cannot apply DjangoModelPermissions on a view that does not have `.queryset` property or overrides the `.get_queryset()` method
提问by Gaurav
I am getting the error ".accepted_renderer not set on Response resp api django".
我收到错误“.accepted_renderer not set on Response resp api django”。
I am following the django rest-api tutorial. Django version i am using 1.8.3 I followed the tutorial till first part. It worked properly. But when i continued the 2nd part in sending response, i got an error
我正在关注 django rest-api 教程。Django 版本我使用的是 1.8.3 我一直跟着教程直到第一部分。它工作正常。但是当我继续发送响应的第二部分时，我收到了一个错误
Cannot apply DjangoModelPermissions on a view that does not have `.queryset` property or overrides the `.get_queryset()` method.
Then i tried other ways i got
然后我尝试了其他方法
.accepted_renderer not set on Response resp api django
Please help me out. I think its permission issue.
请帮帮我。我认为它的许可问题。
采纳答案by Rahul Gupta
You probably have set DjangoModelPermissionsas a default permission class in your settings. Something like:
您可能已在设置中设置DjangoModelPermissions为默认权限类。就像是：
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': (
'rest_framework.permissions.DjangoModelPermissions',
)
}
DjangoModelPermissionscan only be applied to views that have a .querysetproperty or .get_queryset()method.
DjangoModelPermissions只能应用于具有.queryset属性或.get_queryset()方法的视图。
Since Tutorial 2 uses FBVs, you probably need to convert it to a CBV or an easy way is to specify a different permission class for that view.
You must be using the api_viewdecorator in your view. You can then define permissionslike below:
由于教程 2 使用 FBV，您可能需要将其转换为 CBV，或者一种简单的方法是为该视图指定不同的权限类。您必须api_view在视图中使用装饰器。然后你可以定义permissions如下：
from rest_framework.decorators import api_view, permission_classes
from rest_framework import permissions
@api_view([..])
@permission_classes((permissions.AllowAny,))
def my_view(request)
...
To resolve the renderer error, you need to add the corresponding renderer to your settings.
要解决渲染器错误，您需要将相应的渲染器添加到您的设置中。
REST_FRAMEWORK = {
'DEFAULT_RENDERER_CLASSES': (
'rest_framework.renderers.<corresponding_renderer>',
...
)
}
回答by Gaurav
I got it working in another way. My logged in user was the superuser which i have created. So i have created another user from admin and made him staff user and provided all the permissions. Then logged in to admin by that user.
我让它以另一种方式工作。我的登录用户是我创建的超级用户。所以我从管理员创建了另一个用户，并让他成为员工用户并提供所有权限。然后由该用户登录到管理员。
In settings.py file i changed code.
在 settings.py 文件中，我更改了代码。
REST_FRAMEWORK = {
# Use Django's standard `django.contrib.auth` permissions,
# or allow read-only access for unauthenticated users.
'DEFAULT_PERMISSION_CLASSES': [
'rest_framework.permissions.IsAuthenticated',
]
}
And it worked.
它奏效了。
回答by Arctic Giraffe
Solution for me was as pointed out by @ProfNandaa above
正如上面@ProfNandaa 所指出的，对我来说的解决方案
Quick fix, comment out the 'rest_framework.renders.DjangoModelPermissions' line for now -- if you are following the DRF Tutorial 2; and perhaps you had added that in settings.py during the homepage example.
快速修复，暂时注释掉“rest_framework.renders.DjangoModelPermissions”行——如果您正在关注 DRF 教程 2；也许您在主页示例中在 settings.py 中添加了它。
I had indeed added this from the homepage example before embarking on the tutorial and hit the same issue.
在开始本教程之前，我确实从主页示例中添加了这个并遇到了同样的问题。
When I commented out the offending code
当我注释掉有问题的代码时
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': (
'rest_framework.permissions.DjangoModelPermissions',
)
}
from settings.py it all worked fine again.
从 settings.py 一切又正常了。
回答by arsho
There are lots of good solutions already listed here. I also faced the same problem in second tutorial. It was showing:
这里已经列出了很多好的解决方案。我在第二个教程中也遇到了同样的问题。它显示：
Cannot apply DjangoModelPermissionsOrAnonReadOnly on a view that does not set
.querysetor have a.get_queryset()method.
不能在没有设置
.queryset或没有.get_queryset()方法的视图上应用 DjangoModelPermissionsOrAnonReadOnly 。
I changed the settings.pyto exclude DEFAULT_PERMISSION_CLASSESlike below:
我改变了settings.py排除DEFAULT_PERMISSION_CLASSES如下：
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': [
]
}
Then it runs successfully. I tried this before I have found these answers.
然后它运行成功。在找到这些答案之前，我尝试过这个。
回答by CK.Nguyen
In my case, (for tutorial 2, djangorestframeworkver 3.7.7), it works when I change settings to:
就我而言，（对于教程 2，版本djangorestframework3.7.7），当我将设置更改为：
REST_FRAMEWORK = {
'DEFAULT_PERMISSION_CLASSES': [
'rest_framework.permissions.AllowAny',
]
}
