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Re: [EP-tech] Lift_embargos: Can't call method "current_repository" on an undefined value

Problem solved!


The issue was caused by the document/eprint_fields_automatic scripts which were trying to display error messages to an undefined user (since there is no current_user while running the script from the command line). Still no idea why this was working before the upgrade though, but now it works.


Thank you all for your help!



De : Robin Sylvestre <robin.sylvestre@polymtl.ca>
Envoyé : 20 novembre 2019 10:38
À : John Salter <J.Salter@leeds.ac.uk>; eprints-tech@ecs.soton.ac.uk
Objet : Re: [EP-tech] Lift_embargos: Can't call method "current_repository" on an undefined value


Thanks John,


Your grep formula helped me solve the “Use of uninitialized value in string ne at (eval 65)” issue, but that’s not what is causing the script to fail.


We are running Eprints 3.3.13 which is not concerned by the Apache 2.4 problem you mentioned (but thanks for the info).


I still suspect it’s something related to Apache config, I’ll investigate this with our IT team.




De : John Salter <J.Salter@leeds.ac.uk>
Envoyé : 20 novembre 2019 07:21
À : eprints-tech@ecs.soton.ac.uk; Robin Sylvestre <robin.sylvestre@polymtl.ca>
Objet : RE: [EP-tech] Lift_embargos: Can't call method "current_repository" on an undefined value


Hi Robin,

*** Firstly, if you have moved from Apache 2.2 to Apache 2.4, make sure your restricted documents are restricted!

*** There may be a change needed in ~/archives/ARCHIVEID/cfg/cfg.d/security.pl

*** See: https://github.com/eprints/eprints/issues/322


On to your reported problem…

I would check any 'commit' triggers in your repository config.

This might also help (it's a bit crude, but has helped me in the past) - grepping for a 'ne' on line 48 of a repository's config:

grep -n ' ne ' archives/ARCHVIEID/cfg/  | grep 48

if that doesn't return anything, try other config locations  like lib/cfg.d/


I suspect there's a commit trigger that either:

- works OK if there's an online session, but not from the command-line

- generates a warning that's ignored in an online session, but not in the bin script - which then fails


Does that help at all?





From: eprints-tech-bounces@ecs.soton.ac.uk [mailto:eprints-tech-bounces@ecs.soton.ac.uk] On Behalf Of Robin Sylvestre via Eprints-tech
Sent: 19 November 2019 18:42
To: eprints-tech@ecs.soton.ac.uk
Subject: [EP-tech] Lift_embargos: Can't call method "current_repository" on an undefined value


Hello fellow Eprinters,


We’ve been running Eprints 3.3.13 and a modified “lift_embargos” script for quite some time without any issue. But we noticed lately that the script has stopped working. It seems that it is now unable to commit any changes. Running in debug mode, I can see that the script fails after calling the “$doc->commit(1)” line:


Lifting expired embargo on eprint #2957, document #41378 (2019-11-19)



149:            if( !$dryrun )

150:            {


151:                    $doc->set_value( "security", "public" );


152:                    $doc->set_value( "date_embargo", undef );


154:                    $doc->commit( 1 ); # pass force through to parent eprint


Use of uninitialized value in string ne at (eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19] line 48.

at (eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19] line 48.

        EPrints::Config::Ecole::__ANON__[(eval 65)[(eval 55)[/usr/share/eprints/bin/../perl_lib/EPrints/Config.pm:272]:19]:68]('EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/Repository.pm line 1726

        eval {...} called at /usr/share/eprints/bin/../perl_lib/EPrints/Repository.pm line 1726

        EPrints::Repository::call('EPrints::Repository=HASH(0x4654aa0)', 'set_document_automatic_fields', 'EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/DataObj.pm line 463

        EPrints::DataObj::update_triggers('EPrints::DataObj::Document=HASH(0x9a2f8f0)') called at /usr/share/eprints/bin/../perl_lib/EPrints/DataObj/Document.pm line 1217

        EPrints::DataObj::Document::commit('EPrints::DataObj::Document=HASH(0x9a2f8f0)', 1) called at lift_embargos line 154

        main::__ANON__[lift_embargos:184]('EPrints::Repository=HASH(0x4654aa0)', 'EPrints::DataSet=HASH(0x57200e8)', 'EPrints::DataObj::Document=HASH(0x9a2f8f0)', undef) called at /usr/share/eprints/bin/../perl_lib/EPrints/List.pm line 664

        EPrints::List::map('EPrints::List=HASH(0x2ff0af8)', 'CODE(0x999baa0)') called at lift_embargos line 184

Can't call method "current_repository" on an undefined value at /usr/share/eprints/bin/../perl_lib/EPrints/BackCompatibility.pm line 443.


Looking at the code, I can see that the session information is passed to the other functions, but it doesn’t seem to be working anymore as the session is undefined when calling the method “current_repository” on line 443 of BackCompatibility.pm:


return $EPrints::HANDLE->current_repository;


The only thing that changed in the last few weeks has been a server upgrade (not sure what was the previous version but we are now running on CentOS 7 with Perl 5.16.3 and Apache 2.4.6). Using the workflow to commit changes still work without any issue.


Has anyone encountered this error before? Could this be related to Perl or Apache’s configuration?


Thank you for your input on this issue!


Robin Sylvestre

Technicien des systèmes informatisés

Bibliothèque Louise-Lalonde-Lamarre

Polytechnique Montréal

514-340-4711 poste 5973