Safe Object Retrieval

Snippet

Safe Object Retrieval

Using get_object_or_404 prevents the server from crashing with a 500 error if the requested ID does not exist.

snippet.py
python
from django.shortcuts import get_object_or_404
from .models import Post
 
def post_detail(request, pk):
    # Instead of Post.objects.get(pk=pk)
    post = get_object_or_404(Post, pk=pk)
    return render(request, 'detail.html', {'post': post})

django

Breakdown

get_object_or_404(Post, pk=pk)

Tries to fetch the object; if it fails, it raises an Http404 exception automatically.

Previous snippet Next snippet

More Beginner Python exercises →

From your library

Safe Object Retrieval

Related