[Koha-devel] Using Template::Toolkit WRAPPER in Koha plugins

[dcook at prosentient.com.au]

Cheers, Martin.

 

In the plugin I was working on, I’ve created even more complex templates (by setting footerjs in the WRAPPER directive), but that plugin isn’t public at the moment.

 

Actually, I’m probably going to not publish that plugin in the end, as it wasn’t scalable enough. The synchronous processing was just too slow. It would be tempting to rearchitect it to use asynchronous processing, but we’ll need more work done for on the task queue front for that. 

 

Although this plugin has made me think more about what would be needed there:

*	Plugin sends message to RabbitMQ
*	RabbitMQ sends message to Background Worker
*	Background Worker invokes desired Plugin method for long-running job
*	Plugin or Background Worker stores results somewhere that can be used later by a Koha web user.

 

I’ve been learning Gitlab CI lately and it’s essentially the same model (but without the RabbitMQ). 

 

David Cook

Software Engineer

Prosentient Systems

72/330 Wattle St

Ultimo, NSW 2007

Australia

 

Office: 02 9212 0899

Online: 02 8005 0595

 

From: Koha-devel <koha-devel-bounces at lists.koha-community.org> On Behalf Of Renvoize, Martin
Sent: Tuesday, 8 September 2020 8:47 PM
To: Koha Devel <koha-devel at lists.koha-community.org>
Subject: Re: [Koha-devel] Using Template::Toolkit WRAPPER in Koha plugins

 

Looks like a nice approach to me, thanks for the example.




	

 


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On Fri, 4 Sep 2020 at 07:26, <dcook at prosentient.com.au <mailto:dcook at prosentient.com.au> > wrote:

Hi all,

 

I just wanted to share how I’ve used Template::Toolkit WRAPPER in a Koha plugin. 

 

All the details are available at https://bugs.koha-community.org/bugzilla3/show_bug.cgi?id=26381, but basically it boils down to creating 1 wrapper template, and then invoking that using the WRAPPER directive in individual Koha plugin templates like report-step1.tt <http://report-step1.tt> . 

 

It reduces the boiler plate required for each plugin template whether that wrapper template is provided by the Koha plugin or by Koha (both approaches have pros and cons). 

 

For a long time, I’ve wanted to use WRAPPER with Koha more broadly, but Koha plugins provide a great opportunity for using them with no refactoring of existing code.

 

Anyway, I hope that others find this useful. I’m going to have a bit of fun with it.

 

David Cook

Software Engineer

Prosentient Systems

72/330 Wattle St

Ultimo, NSW 2007

Australia

 

Office: 02 9212 0899

Online: 02 8005 0595

 

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