Exemplo de CRUD com FBV no Django.

urls.py

#urls.py

from django.urls import path
from .views import PostListView
from .views import PostDetailView
from .views import PostCreateView
from .views import PostUpdateView
from .views import PostDeleteView
from . import views

urlpatterns = [
    path('', PostListView.as_view(), name='blog-name'),
    path('post/<int:pk>/', PostDetailView.as_view(), name='post-detail'),
    path('post/new/', PostCreateView.as_view(), name='post-create'),
    path('post/<int:pk>/update/', PostUpdateView.as_view(), name='post-update'),
    path('post/<int:pk>/delete/', PostDeleteView.as_view(), name='post-delete'),
    path('about/', views.about, name='blog-about'),
]

views.py

from django.shortcuts import render
from django.contrib.auth.mixins import LoginRequiredMixin
from django.contrib.auth.mixins import UserPassesTestMixin
from django.views.generic import ListView
from django.views.generic import DetailView
from django.views.generic import CreateView
from django.views.generic import UpdateView
from django.views.generic import DeleteView
from .models import Post


def home(request):
    context = {
        'posts': Post.objects.all(),
    }
    return render(request, 'blog/home.html', context)


class PostListView(ListView):
    model = Post
    template_name = 'blog/home.html'
    context_object_name = 'posts'
    ordering = ['-date_posted']


class PostDetailView(DetailView):
    model = Post


class PostCreateView(LoginRequiredMixin, CreateView):
    model = Post 
    fields = ['title', 'content']
    
    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)


class PostUpdateView(LoginRequiredMixin, UserPassesTestMixin, UpdateView):
    model = Post 
    fields = ['title', 'content']
    
    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)
    
    def test_func(self):
        post = self.get_object()
        if self.request.user == post.author:
            return True
        return False


class PostDeleteView(LoginRequiredMixin, UserPassesTestMixin, DeleteView):
    model = Post
    success_url = '/'
    
    def test_func(self):
        post = self.get_object()
        if self.request.user == post.author:
            return True
        return False
    

def about(request):
    return render(request, 'blog/about.html', {'title': 'About'})