django.core.exceptions.ImproperlyConfigured: CreateView is missing a QuerySet

Question

I'm getting the error CreateView is missing a QuerySet. Define CreateView.model, CreateView.queryset, or override CreateView.get_queryset().

It seems like Django thinks that I'm using CreateView without specifying a model. However, my view does define a model.

views.py:

from django.views.generic.edit import CreateView
from django.contrib.auth.mixins import PermissionRequiredMixin
from .models import Note

class CreateNoteView(PermissionRequiredMixin, CreateView):
    model = Note
    permission_required = 'file_manager.can_add_note'
    template_name = 'file_manager/note_create.html'
    fields = ['title', 'note', 'tags', 'cases', 'people']

The Note model is in models.py:

class Note(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    created = models.DateTimeField(auto_now_add=True, null=True)
    updated = models.DateTimeField(auto_now=True, null=True)
    title = models.CharField(max_length=60)
    note = models.TextField(null=True, blank=True)
    tags = models.ManyToManyField(FileManagerTags, related_name='tagged_note_set')
    cases = models.ManyToManyField(Case, related_name='related_note_set')
    people = models.ManyToManyField(Person, related_name='notes_rel_to_person')

    def __str__(self):
        return str(self.title)

    def get_absolute_url(self):
        return reverse('file_manager:note_create', kwargs={'pk': self.pk})

The test I'm using that is raising the error is:

def test_whether_note_create_view_uses_correct_template(self):
    client = Client()
    test_superuser = User.objects.get(username=test_superuser_username)
    client.force_login(test_superuser)
    response = client.get(reverse('file_manager:note_create'), follow=True)
    self.assertTemplateUsed(
        response=response,
        template_name='file_manager/note_index.html'
    )

The traceback is:

======================================================================
ERROR: test_whether_note_create_view_uses_correct_template (file_manager.tests.test_views.NoteCreateView)
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/mint/Python_Projects/[project_name]/file_manager/tests/test_views.py", line 72, in test_whether_note_create_view_uses_correct_template
    response = client.get(reverse('file_manager:note_create'))
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/test/client.py", line 503, in get
    **extra)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/test/client.py", line 304, in get
    return self.generic('GET', path, secure=secure, **r)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/test/client.py", line 380, in generic
    return self.request(**r)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/test/client.py", line 467, in request
    six.reraise(*exc_info)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/utils/six.py", line 686, in reraise
    raise value
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/core/handlers/base.py", line 149, in get_response
    response = self.process_exception_by_middleware(e, request)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/core/handlers/base.py", line 147, in get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/base.py", line 68, in view
    return self.dispatch(request, *args, **kwargs)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/base.py", line 88, in dispatch
    return handler(request, *args, **kwargs)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/edit.py", line 251, in get
    return super(BaseCreateView, self).get(request, *args, **kwargs)
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/edit.py", line 212, in get
    return self.render_to_response(self.get_context_data())
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/edit.py", line 121, in get_context_data
    kwargs.setdefault('form', self.get_form())
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/edit.py", line 73, in get_form
    form_class = self.get_form_class()
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/edit.py", line 152, in get_form_class
    model = self.get_queryset().model
  File "/home/mint/Python_Projects/virtualenvs/[project_name]/lib/python3.4/site-packages/django/views/generic/detail.py", line 74, in get_queryset
    'cls': self.__class__.__name__
django.core.exceptions.ImproperlyConfigured: CreateView is missing a QuerySet. Define CreateView.model, CreateView.queryset, or override CreateView.get_queryset().

I've run makemigrations and migrate. I'm using Django 1.9 on Python 3.4. I'm not doing anything unusual, and I've used this exact pattern before without an issue.

EDIT

My urls.py:

from django.conf.urls import url, include

from . import views

urlpatterns = [

    # Note urls
    url(r'^note/create', views.CreateView.as_view(), name='note_create'),
    url(r'^notes/$', views.NoteIndexView.as_view(), name='note_index'),

]

Answer 1

Try changing the URL pattern to:

url(r'^note/create', views.CreateNoteView.as_view(), name='note_create')

Worked for me.

Answer 2

The problem is in the urls.py and I changed it to the name of my class name in views.py and this worked for me.

I changed the CreateView to my class name in my views.py.

Wrong url:

path('create-task/', views.CreateView.as_view(), name='create-task')

Right url:

path('create-task/', views.TaskCreate.as_view(), name='create-task')

TaskCreate is the name of my class in the views.py and I mistakenly put the CreateView instead of my class name of the views.py ('TaskCreate').