[EP-tech] Re: Empty eprints when clicked "new item" but then "cancel"

Tim Brody tdb2 at ecs.soton.ac.uk
Wed Sep 5 13:39:37 BST 2012


On Fri, 31 Aug 2012 14:05:48 +0200, Florian Heß
<hess at ub.uni-heidelberg.de>
wrote:
> Hello,
> 
> I'd like to suggest that an eprint should be deleted right away if the 
> user cancelled the workflow without filling in any required field, thus 
> they won't clutter up their items page with spare entries to remove them 
> by hand, just for convenience. I admit this case will not occur often 
> once deployment is finished, but when it does, it can be quite annoying.
> 
> Or could that be done with eprint_fields_automatic callback?
> 
> $c->{eprint_fields_automatic} = sub {
>       ...
>       my %expected_fields = map { $_ => 1 } ...;
>       my @set_fields = ...;
>       defined || delete $expected_fields{$_} for @set_fields;
>       $eprint->delete() if !%expected_fields;
> }
> 
> Is deletion from within that callback safe and okay?

Hi,

This is a known requirement but not easy to achieve.

(Screens) EPrint::Edit needs to work out whether the eprint object is
unchanged from the object created in NewEPrint. That probably means setting
a flag in NewEPrint that is unset the first time you [Save] in Edit, but
otherwise triggers a delete() on [Cancel].

-- 
All the best,
Tim.


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