`basename` argument not specified - rest

Question

i created a new project by django restframework
the project name = 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)),
]
framework 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',
]
when i run th server in CMD
this error comes :
AssertionError: basename argument not specified, and could not automatically determine the name from the viewset, as it does not have a .queryset attribute.

Answer 1

You should specify queryset attribute instead of query in your viewset. For example (class name case changed to comply PEP8):
class MyViewSet(viewsets.ModelViewSet):
queryset = Task.objects.all().order_by('date_created')
serializer_class = TaskSerializers
Docs: https://www.django-rest-framework.org/api-guide/viewsets/#modelviewset
Also I recommend always specify basename when you register your viewsets. Like this:
router = routers.DefaultRouter();
router.register('task', MyViewSet, basename='tasks')
https://www.django-rest-framework.org/api-guide/routers/#usage
basename - The base to use for the URL names that are created. If unset the basename will be automatically generated based on the queryset attribute of the viewset, if it has one. Note that if the viewset does not include a queryset attribute then you must set basename when registering the viewset.