601. Gotowe builtin widoki w Django. Czy tylko CBV?

    - Nie wszystkie wbudowane widoki w Django są implementowane jako class-based views.
    - Większość nowoczesnych widoków jest implementowana jako class-based views.
    - Starsze i prostsze widoki, szczególnie związane z uwierzytelnianiem i adminem, mogą być function-based views.

• ListView
- pobiera wszystkie elementy w modelu / tabeli
• DetailView
- pobiera dokładnie jeden obiekt modelu / tabeli spełniający kryteria zdef. w url.py
• CreateView
• UpdateView
• DeleteView

• LoginView, LogoutView, PasswordResetView, PasswordChangeView

• RedirectView, TemplateView

• Widoki związane z uwierzytelnianiem (logout_then_login, password_reset_done)
• Widoki dla admina (sporo)

# Ad1. CBV Widoki genericzne, przykład:


urlpatterns = [
    path('', views.IndexView.as_view(), name='index'),
    path('add/', views.AddView.as_view(), name='add'),
    path('posts/', views.PostsView.as_view(), name='posts'),
    path('<slug:slug>/', views.SingleView.as_view(), name='single'),
    path('edit/<int:pk>/', views.EditView.as_view(), name='edit'),
    path('delete/<int:pk>/', views.DeleteCustomView.as_view(), name='delete'),
]


from django.views.generic import ListView, DetailView, UpdateView, DeleteView

class IndexView(ListView):
    model = Core
    template_name = "core/index.html"
    context_object_name = "index"
    # context_object_name = "object_list" (default)


class SingleView(DetailView):
    model = Core
    template_name = "core/single.html"
    context_object_name = "post"


class PostsView(ListView):
    model = Core
    template_name = "core/posts.html"
    context_object_name = "post_list"


class AddView(CreateView):
    model = Core
    # fields = ["title"]
    fields = "__all__"
    template_name = "core/add.html"
    success_url = reverse_lazy("core:posts")
    # context_object_name = "object_list" (default)


class EditView(UpdateView):
    model = Core
    fields = "__all__"
    template_name = "core/edit.html"
    pk_url_kwarg = "pk"
    success_url = reverse_lazy("core:posts")
    # context_object_name = "object_list" (default)


class DeleteCustomView(DeleteView):
    model = Core
    # fields = "__all__"
    template_name = "core/confirm-delete.html"
    pk_url_kwarg = "pk"
    success_url = reverse_lazy("core:posts")
    # context_object_name = "object_list" (default)