Django Generic Class-Based Views: ListView and DetailView

Snippet

Django Generic Class-Based Views: ListView and DetailView

Django's generic class-based views provide pre-built functionality for common patterns. ListView handles pagination and object listing, while DetailView looks up objects by slug or pk. LoginRequiredMixin adds authentication protection. These reduce boilerplate significantly.

snippet.py
python
# views.py
from django.views.generic import ListView, DetailView
from django.contrib.auth.mixins import LoginRequiredMixin
from .models import Post
 
class PostListView(LoginRequiredMixin, ListView):
    model = Post
    template_name = 'blog/post_list.html'
    context_object_name = 'posts'
    paginate_by = 10
    
    def get_queryset(self):
        return Post.objects.filter(author=self.request.user).order_by('-created')
 
 
class PostDetailView(DetailView):
    model = Post
    template_name = 'blog/post_detail.html'
    context_object_name = 'post'
    slug_field = 'slug'
    query_pk_and_slug = True
 
# urls.py
path('posts/', PostListView.as_view(), name='post_list'),
path('post/<slug:slug>/', PostDetailView.as_view(), name='post_detail'),

django

Breakdown

class PostListView(LoginRequiredMixin, ListView):

Multiple inheritance: LoginRequiredMixin checks auth first, then ListView provides list functionality

paginate_by = 10

Automatically splits querysets into pages of 10 items each

def get_queryset(self):

Override to filter posts to only those authored by the current user

query_pk_and_slug = True

Allows DetailView to lookup by either primary key or slug field

PostDetailView.as_view()

Converts the class into a callable view function for URL routing

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Django Generic Class-Based Views: ListView and DetailView

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