How do I display non-field errors at the bottom of a form?

[richard.prosser]

Essentially I want to ensure that a DB record provided via a form is
unique AND be able to handle the error(s) produced in my own way.
After lengthy and often fruitless searching I decided that a
Model.validate_unique() call to trap the ValidationError would be
suitable, so that I could populate my own 'error_message' form
variable with the Django-produced "[model] with this [fields] already
exists" message.

However this message is still displayed at the top of the form, via
'top_errors' in django.forms I believe.

I have looked for a way to (artifically) declare the 'unique_together'
fields to be OK once I have captured the ValidationError message - so
as to inhibit the above behaviour - but there doesn't seem to be one.

So can anyone suggest a better approach?

Apologies in advance for not being able to supply any code but it is
subject to IPR restrictions.


Thanks ...

Richard