Implement get_list_or_404()

[yyyyyyyan]

Are there any reasons why we don't have get_list_or_404() implemented like get_object_or_404()? Since the shortcut function is available since before Django 2.2, I believe it'd be great to have it covered.

[tomchristie]

So our default behaviour is to return an empty list if there are no results, rather than a 404.

I think that behaviour is more intuitive than returning a 404 if there are no results.

(I don't think we expose a get_object_or_404 function to the public API, so I'm not exactly clear what API change you're suggesting. Are you suggesting that we change the behaviour of ListAPIView to 404 instead of returning an empty list?)

[yyyyyyyan]

I actually didn't realize get_object_or_404() is not exposed in the public API!! Thank you for clarifying.

[zarinpy]

404 is for situations where we cannot find an object or entity, not a list, list can be empty