auto MD update request for non-mandatory datacite fields

[cziaarm]

From London Area Research Data (LARD) :

"A mechanism to update non-mandatory metadata with DataCite whenever there is an update on the EPrint (using automatic on-commit trigger) and to prevent automatic update of mandatory metadata (this should not be modifiable once written to DataCite)"

[cziaarm]

An EPrint commit trigger, like

DataCiteDoi/cfg/cfg.d/z_datacitedoi.pl

Lines 91 to 110 in 402886d

	if($c->{datacitedoi}{auto_coin}){
	$c->add_dataset_trigger( "eprint", EP_TRIGGER_STATUS_CHANGE , sub {
	my ( %params ) = @_;
	my $repository = %params->{repository};
	return undef if (!defined $repository);
	if (defined %params->{dataobj}) {
	my $dataobj = %params->{dataobj};
	my $eprint_id = $dataobj->id;
	$repository->dataset( "event_queue" )->create_dataobj({
	pluginid => "Event::DataCiteEvent",
	action => "datacite_doi",
	params => [$dataobj->internal_uri],
	});
	}
	});
	}

but without attempting to coin a new doi, just to send the new metadata to datacite. This would require

a) A new event trigger and config item to control it
c) Test feasibility of metadata updates via DataCite API (params required? etc)
b) A new action for Event::DataCiteEvent to update metadata

R