[EP-tech] Re: Altering DajaObj/Eprint.pm behaviour without altering core code

John Salter J.Salter at leeds.ac.uk
Wed Apr 4 15:33:10 BST 2012


Thanks Seb, works like a dream!

Do you have any 'good practice' advice on how to do this within an archive?
I already have ~/archives/[ID]/cfg/plugins/... for over-riding plugins.
Would your advice be to add something within there, or to add something like cfg.d/core_overrides.pl?

Cheers,
John

-----Original Message-----
From: eprints-tech-bounces at ecs.soton.ac.uk [mailto:eprints-tech-bounces at ecs.soton.ac.uk] On Behalf Of Sebastien Francois
Sent: 04 April 2012 12:29
To: eprints-tech at ecs.soton.ac.uk
Subject: [EP-tech] Re: Altering DajaObj/Eprint.pm behaviour without altering core code

What about:

*EPrints::DataObj::EPrint::render_fileinfo = \&my_render_fileinfo;

sub my_render_fileinfo
{
# your code ...
}

Seb.


On 04/04/12 12:18, John Salter wrote:
> I'm trying to do something the 'right way'*.
> This advice: http://wiki.eprints.org/w/Read_Only_Directories says I shouldn't be editing anything under eprints3/perl_lib/ (with a couple of exceptions).
>
> I need to alter the 'render_fileinfo' subroutine in ~/perl_lib/EPrints/DataObj/EPrint.pm.
> How do I achieve this without:
>   - altering the Eprint.pm file
>   - ending up with some 'Subroutine render_fileinfo redefined' messages
>   - using "no warnings 'redefine';" ;o)
>
> I've tried various attempts - without success.
> I'm sure it can be done, and I'm sure it's a bit of perl magic I'm missing, and hopefully someone here can help!
>
> Cheers,
> John
>
> *http://blogs.ecs.soton.ac.uk/oneshare/2009/09/25/taking-stock-and-mopping-up-the-mess-i-made-of-eprints/
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