how show personalized error with get_object_or_404

Question

Hi guys, i would like to know how show personalized error with get_object_or_404?, i dont want the normal http404 pages, i want to display a message with the result is none

thanks :)

Answer 1

That cant be done with that shortcut. It can only raise a Http404 exception. Your best bet is a try catch if you want full control. Eg.

try:
    obj = Model.objects.get(pk = foo)
except:
    return HttpResponseRedirect('/no/foo/for/you')
    #or
    return render_to_response ...

Answer 2

The get_object_or_404() is essentially a simple 5-line function. Unless you have some specific reason for using it, just do:

try:
    instance = YourModel.objects.get(pk=something)
except YourModel.DoesNotExist:
    return render_to_response('a_template_with_your_error_message.html')

If for whatever reason you have to use get_object_or_404(), you can try putting it in a try: ... except Http404: ... block, but I honestly can't think of a plausible reason for that.

Answer 3

And why exactly aren't you using your server's capeability to do just that?
get_object_or_404() is redirecting to the default 404 page right?
If you are on debug mode you won't see it but when deployed django will just refer to the server's 404 html page.