one django project two apps, problem with generic views( class view)-CodePudding

i have two apps in one project: store and basket.

In urls.py in core of project:

urlpatterns = [
    path('admin/', admin.site.urls),
    path('', include('jewelry_store.urls', namespace='jewelry_store')),
    path('basket/', include('basket.urls', namespace='basket')), 
]

in urls.py in basket app :

from django.urls import path
from basket import views

app_name = 'basket'

urlpatterns = [
    path('', views.BasketSummary.as_view(), name='basket_summary')
]

in urls.py in jewelry_store app :


from django.urls import path

from jewelry_store.models import Category

from . import views

app_name = 'jewelry_store'

urlpatterns = [
    path('', views.AllListView.as_view(), name='all_products'),
    path('<slug:slug>', views.ProductView.as_view(), name='product_detail'),
    path('category/<slug:slug>/', views.CategoryView.as_view(), name='all_categories'),
    path('collection/<slug:slug>/', views.CollectionView.as_view(), name='all_collections'),
    
]

i wold like to have class based view in views.py, like this :

from msilib.schema import ListView
from django.shortcuts import render

import basket
from jewelry_store.models import Product

# Create your here.

class BasketSummary(ListView):
    model = Product
    template_name = "jewelry_store/basket/summary.html"

but it generate error like this

when it is done in functions mode everything is correct. What is proper configuration for class views ?

Exception in thread django-main-thread:
Traceback (most recent call last):
  File "C:\Users\nasz\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 932, in _bootstrap_inner
    self.run()
  File "C:\Users\nasz\AppData\Local\Programs\Python\Python38-32\lib\threading.py", line 870, in run
    self._target(*self._args, **self._kwargs)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\utils\autoreload.py", line 64, in wrapper
    fn(*args, **kwargs)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\core\management\commands\runserver.py", line 123, in inner_run
    self.check(display_num_errors=True)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\core\management\base.py",
line 438, in check
    all_issues = checks.run_checks(
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\core\checks\registry.py",
line 77, in run_checks
    new_errors = check(app_configs=app_configs, databases=databases)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\core\checks\urls.py", line 13, in check_url_config
    return check_resolver(resolver)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\core\checks\urls.py", line 23, in check_resolver
    return check_method()
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\urls\resolvers.py", line 445, in check
    for pattern in self.url_patterns:
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\utils\functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\urls\resolvers.py", line 631, in url_patterns
    patterns = getattr(self.urlconf_module, "urlpatterns", self.urlconf_module)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\utils\functional.py", line 48, in __get__
    res = instance.__dict__[self.name] = self.func(instance)
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\urls\resolvers.py", line 624, in urlconf_module
    return import_module(self.urlconf_name)
  File "C:\Users\nasz\AppData\Local\Programs\Python\Python38-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\nasz\dev\shop\core\urls.py", line 24, in <module>
    path('basket/', include('basket.urls', namespace='basket')),
  File "C:\Users\nasz\dev\shop\myvenv\lib\site-packages\django\urls\conf.py", line 33, in include
    urlconf_module = import_module(urlconf_module)
  File "C:\Users\nasz\AppData\Local\Programs\Python\Python38-32\lib\importlib\__init__.py", line 127, in import_module
    return _bootstrap._gcd_import(name[level:], package, level)
  File "<frozen importlib._bootstrap>", line 1014, in _gcd_import
  File "<frozen importlib._bootstrap>", line 991, in _find_and_load
  File "<frozen importlib._bootstrap>", line 975, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 671, in _load_unlocked
  File "<frozen importlib._bootstrap_external>", line 783, in exec_module
  File "<frozen importlib._bootstrap>", line 219, in _call_with_frames_removed
  File "C:\Users\nasz\dev\shop\basket\urls.py", line 2, in <module>
    from basket import views
  File "C:\Users\nasz\dev\shop\basket\views.py", line 9, in <module>
    class BasketSummary(ListView):
TypeError: __init__() takes 2 positional arguments but 4 were given

CodePudding user response：

Import ListView from django generic view module.

On top of your views.py file change this line

from msilib.schema import ListView

from django.views.generic

CodePudding user response：

try this:

class BasketSummary(ListView):
    model = Product
    template_name = "basket/summary.html"

instead of this:

class BasketSummary(ListView):
    model = Product
    template_name = "jewelry_store/basket/summary.html"