Hi,

Peaking at the code... 
https://github.com/django/django/blob/cc870b8ef5e3464c6f051e3ef0a25dfc4b597452/django/contrib/admin/options.py#L1430

It looks like it would also log a successful change in the history.  Is it 
possible to detect the change during the validation?

Looks like you could override response_change() or message_user(), or let 
the exception bubble up to changelist_view() and override that whole thing.

Collin


On Wednesday, November 26, 2014 11:41:26 AM UTC-5, [email protected] wrote:
>
> Hi there,
>
> Hopefully an easy question. I've overridden save_model() in my admin page, 
> and I'm wrapping my obj.save() call in a try/catch so that I can catch a 
> RecordModifiedError. 
>
>     def save_model(self, request, obj, form, change):
>              
>         from concurrency.exceptions import RecordModifiedError
>         from django.http import HttpResponse
>         try: 
>                 
>             obj.save()
>             #other stuff
>
>         except RecordModifiedError:
>             self.message_user(request,
>                             "[!] Record modified. Please try again.",
>                             level="error")
>             return None
>
> The message saying record modified is shown when it should be. However, 
> there is also a message at the top saying that the save was successful, 
> when in fact it was not. 
> What's the proper way to stop the success message from occurring? Can I 
> clear it, or stop the request? Return None doesn't seem to help.
>
> Thanks!
>

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