How do I not show delete confirmation in Django admin unless conditions are met

Question

I overrode the delete_queryset method to add a condition before being able to delete a model. It looks like this:

def delete_queryset(self, request, queryset):
    if condition_is_not_met:
        self.message_user(request, 'Error', level=messages.ERROR)
        return

    super().delete_queryset(request, queryset)

This DOES prevent the deletion but it shows that error message and below it says, Successfully deleted 'x' objects (Again, not deleted so success message should not be there). I don't want to display that error message and what would be even better is if the confirmation page did not even show up if the condition is not met (This is a bonus though). Any suggestions?

To anyone looking for a way to remove the "Successfully deleted" message, only way to do so seems to be to override the `delete_selected` action. A way to accomplish this seems to be: https://stackoverflow.com/a/59835462/1605873 — Sebastián Vansteenkiste, Jul 31 '20 at 19:03
A similar approach can also be found here: https://stackoverflow.com/a/1471977/1605873 — Sebastián Vansteenkiste, Jul 31 '20 at 19:24

score 3 · Answer 1 · answered Sep 10 '19 at 14:52

3

Just override the has_delete_permission method on modeladmin, which will return True or False based on the condition.

def has_delete_permission(self, request, obj=None):
    if condition_is_not_met:
        return False
    return True

Docs

answered Sep 10 '19 at 14:52

Mohit Solanki

2,122
12
20

I guess my condition is sort of a “permission”. The only issue I see is that it gives a weird generic message that doesn’t describe the permission if a delete is attempted. – Pittfall Sep 10 '19 at 16:05
what generic message do you get? – Mohit Solanki Sep 10 '19 at 17:41

How do I not show delete confirmation in Django admin unless conditions are met

1 Answers1