django-cbv-patterns

# Django Class-Based Views

Master Django Class-Based Views for building modular, reusable view
logic with proper separation of concerns.

## Generic Views

Use Django's built-in generic views for common patterns.

```python
from django.views.generic import ListView, DetailView, CreateView, UpdateView, DeleteView
from django.urls import reverse_lazy

class PostListView(ListView):
    model = Post
    template_name = 'posts/list.html'
    context_object_name = 'posts'
    paginate_by = 10
    ordering = ['-created_at']

    def get_queryset(self):
        queryset = super().get_queryset()
        # Only show published posts
        return queryset.filter(published=True).select_related('author')

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        context['total_posts'] = self.get_queryset().count()
        return context

class PostDetailView(DetailView):
    model = Post
    template_name = 'posts/detail.html'
    context_object_name = 'post'

    def get_queryset(self):
        return super().get_queryset().select_related('author').prefetch_related('comments')

class PostCreateView(CreateView):
    model = Post
    fields = ['title', 'content', 'published']
    template_name = 'posts/create.html'
    success_url = reverse_lazy('post-list')

    def form_valid(self, form):
        form.instance.author = self.request.user
        return super().form_valid(form)

class PostUpdateView(UpdateView):
    model = Post
    fields = ['title', 'content', 'published']
    template_name = 'posts/update.html'

    def get_success_url(self):
        return reverse_lazy('post-detail', kwargs={'pk': self.object.pk})

class PostDeleteView(DeleteView):
    model = Post
    template_name = 'posts/confirm_delete.html'
    success_url = reverse_lazy('post-list')
```

## Built-in Mixins

Leverage Django's built-in mixins for common functionality.

```python
from django.contrib.auth.mixins import LoginRequiredMixin, UserPassesTestMixin, P