To all your questions, yes sure!

About UNIMARC or MARC21, this is quite easy to implement, it just needs some parameters to the report-step1 sub and template.

I tested it on our pre-production server, the query takes 1s at the maximum to scan the whole DB (i did only sub selects and inner join to get a reduced dataset).

"Release early, release often", i thought it would be much easier to implement first in a plugin plus it is nice to use this new feature.
And really easy to install without messing with custom patches and git branches.

Many ways to optimize:
SQL:
-create a table to store those lists, like an index?
-filter or aggregate results on several fields (type of documents, subject, country, author, whatever)?

Template:
-How to integrate into OPAC?

Also every text is hardcoded for now, I don't know yet if translation is available through the plugin system, this is to be investigated.

Otherwise yes, could be merged to core code but I would need help on this because I don't know much about the core Koha architecture.

Have a nice weekend,
Cheers
Arthur

Le 1 juillet 2016 17:44:54 UTC+02:00, Jonathan Druart <jonathan.druart@bugs.koha-community.org> a écrit :
Hi Arthur,

Reading the code it will only work for UNIMARC, you should mention it
in the README and tell people which changes are needed to make it work
for MARC21 (and add a couple of lines to explain what the plugin
does).

Did you test it on a real DB, with lot of entries in old_issues? It
might be quite slow.

Why did you choose to create a plugin instead of something integrated
to Koha (and submit the patch on bugzilla)?

Cheers,
Jonathan

2016-07-01 16:01 GMT+01:00 SUZUKI Arthur <arthur.suzuki@univ-lyon3.fr>:
 Hi Devs,
 I've been implementing a first prototype of what may looks like "Amazon buy
 suggestions" like "other users who have bought this also bought...."
 It provides a list of similar references based on what other borrow
 ers
has
 previously issued.

 If anyone would like to test this it is available here :
 https://github.com/Liliputech/KohaReadSuggestion

 Hope you'll like this work in progress.
 Special thanks to Kile Hall whose previous and current work on Koha Plugin
 System has really helped me a lot while designing this.
 More information on installing plugins here :
 http://bywatersolutions.com/2013/01/23/koha-plugin-system-coming-soon/

 Thanks to the whole Koha community for the great software and clean code and
 to Kohala for the organization of the Koha Symposium in France, Lyon.
 Best regards,

 Arthur Suzuki
 Librarians IT Team,
 University Jean Moulin Lyon 3

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