未指定`basename`参数

Question

我通过django restframework创建了一个新项目，项目名称= frame th project_app name= framework

fram.urls.py：

"""frame URL Configuration

The `urlpatterns` list routes URLs to views. For more information please see:
    https://docs.djangoproject.com/en/3.1/topics/http/urls/
Examples:
Function views
    1. Add an import:  from my_app import views
    2. Add a URL to urlpatterns:  path('', views.home, name='home')
Class-based views
    1. Add an import:  from other_app.views import Home
    2. Add a URL to urlpatterns:  path('', Home.as_view(), name='home')
Including another URLconf
    1. Import the include() function: from django.urls import include, path
    2. Add a URL to urlpatterns:  path('blog/', include('blog.urls'))
"""
from django.contrib import admin
from django.urls import path,re_path
from django.conf.urls import include,url
from framework.views import myviewset
from rest_framework import routers

router = routers.DefaultRouter();
router.register('task', myviewset)

urlpatterns = [
    path('admin/', admin.site.urls),
    re_path(r'', include(router.urls)),
]

框架models.py：

from django.db import models

# Create your models here.
class Task (models.Model):
    task_name=models.CharField(max_length='200')
    task_desc=models.CharField(max_length='200')
    date_created=models.DateTimeField(auto_now=True)

serializer.py

from .models import Task
from rest_framework import serializers


class TaskSerializers(serializers.ModelSerializer):
    class Meta:
        model = Task
        fields = ('id', 'task_name', 'task_desc')

views.py：

from django.shortcuts import render
from .serializer import TaskSerializers
from rest_framework import viewsets
from .models import Task


# Create your views here.
class myviewset(viewsets.ModelViewSet):
    query = Task.objects.all().order_by('date_created')

    serializer_class = TaskSerializers

admin.py：

from django.contrib import admin
from .models import Task


admin.site.register(Task)
# Register your models here.

setting.py：

INSTALLED_APPS = [
    'framework',
    'rest_framework',
    'django.contrib.admin',
    'django.contrib.auth',
    'django.contrib.contenttypes',
    'django.contrib.sessions',
    'django.contrib.messages',
    'django.contrib.staticfiles',
]

当我在CMD中运行服务器时，出现以下错误：

AssertionError:未指定basename参数，无法根据视图集自动确定名称，因为它没有.queryset属性。

Answer 1

您应该在视图集中指定queryset属性，而不是query。例如(更改类名大小写以符合PEP8)：

class MyViewSet(viewsets.ModelViewSet):
    queryset = Task.objects.all().order_by('date_created')

    serializer_class = TaskSerializers

文档：https://www.django-rest-framework.org/api-guide/viewsets/#modelviewset

另外，我建议您在注册视图集时始终指定basename。如下所示：

router = routers.DefaultRouter();
router.register('task', MyViewSet, basename='tasks')

https://www.django-rest-framework.org/api-guide/routers/#usage

URL用于创建的

名称的基础。如果未设置，则将根据视图集的queryset属性(如果有)自动生成基名。请注意，如果视图集不包括queryset属性，则在注册视图集时必须设置basename。