[EP-tech] Figuring out the highest EPrint ID?

Adam Field Adam.Field at jisc.ac.uk
Thu Feb 16 09:51:51 GMT 2017


I actually just created this for a tweepository last night:

http://websci-tweets.ecs.soton.ac.uk/cgi/tweepository/highest_tweetid

Here’s what’s in the cgi scrtipt directory (you’ll just need to globally replace ‘tweet’ with ‘eprint’ in the mysql query):

use EPrints;
use strict;

my $eprints = EPrints->new;
my $repo = $eprints->current_repository;
exit( 0 ) unless( defined $repo );

my $format = $repo->param( "format" );
$format = "default" if( !defined $format );

my $sql = 'SELECT MAX(tweetid) FROM tweet';

my $sth = $repo->database->prepare($sql);
$sth->execute;

my $high_id = $sth->fetchrow_arrayref->[0];


if ($format eq 'commas')
{
        print scalar reverse join ',', unpack '(A3)*', reverse $high_id;
}
else
{
        print $high_id;
}




[isc]<http://www.jisc.ac.uk/>

Adam Field
SHERPA services analyst developer



From: <eprints-tech-bounces at ecs.soton.ac.uk> on behalf of John Salter <J.Salter at leeds.ac.uk>
Reply-To: "eprints-tech at ecs.soton.ac.uk" <eprints-tech at ecs.soton.ac.uk>
Date: Wednesday, 15 February 2017 11:58
To: "eprints-tech at ecs.soton.ac.uk" <eprints-tech at ecs.soton.ac.uk>
Subject: Re: [EP-tech] Figuring out the highest EPrint ID?

Try the database:
mysql> SELECT MAX(eprintid) FROM eprint;
mysql> SELECT counter FROM counters WHERE counterid = 'eprintid';

There's probably a way to get this via an EPrints session too if you need that?

Cheers,
John


From: eprints-tech-bounces at ecs.soton.ac.uk [mailto:eprints-tech-bounces at ecs.soton.ac.uk] On Behalf Of Andrew Beeken
Sent: 15 February 2017 11:46
To: eprints-tech at ecs.soton.ac.uk
Subject: [EP-tech] Figuring out the highest EPrint ID?

Hello again!

New one here, related to a different project! So, I’m trying to find the HIGHEST EPrint ID that we have in our live system. I was doing this by taking the “Latest Additions” atom feed and looking at the topmost entry, however I have now realised this isn’t accurate as this could be representative of an item that has been sat in a work area for a number of weeks or even months. Is there an easy way, via endpoint or API access, that I could use to derive the highest number?

Andrew

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