Extension talk:Wikibase Client/Lua

mw.wikibase.getEntity
Is it possible to pass id to this function in order to get any entity? --DixonD (talk) 20:57, 27 March 2013 (UTC)
 * It is not possible yet. --Lydia Pintscher (WMDE) (talk) 10:54, 28 March 2013 (UTC)
 * Is it intentionally restricted or not? Bennylin (talk) 16:46, 18 September 2013 (UTC)
 * Look at the bug-49805 to develop. --Rical (talk) 23:58, 18 September 2013 (UTC)

Change Jens Ohlig's code at https://github.com/wikimedia/mediawiki-extensions-Wikibase/blob/master/client/resources/mw.wikibase.lua

from to I think this would work. Bennylin (talk) 18:19, 23 September 2013 (UTC)


 * I first answer on the bug-49805. Then I see your edit here. Very interesting, thanks. But probably with another function name like wikibase.get_Entity to not disturb the original Scribunto, and to test comparing the two fonctions. How to try it, because here I'm not admin, only in fr.wikisource. --Rical (talk) 22:58, 23 September 2013 (UTC)


 * Yes this would work. We have however intentionally restricted it and do not plan to change this for the time being. We need to solve caching and scalabillity issues first before we can allow access to data from arbitrary items. I know this isn't great but unfortunately needed. --Lydia Pintscher (WMDE) (talk) 21:37, 27 September 2013 (UTC)


 * Thanks for the confirmation. That's what I thought. Bennylin (talk) 10:35, 1 October 2013 (UTC)

Troble while accessing personalia
I've written w:ru:Module:Wikibase but met a strange problem. If I try to write construction on any page having facts on Wikidata (Moscow, Mars, arctic fox), I get a pretty table. But on any personalia page (Jimbo, ru:Цзэн Чэн, Ossie Davis) I get only an error on line 51 of mw.wikibase.lua (attempts to index sitelinks which is nil). What to do? Ignatus (talk) 21:23, 3 April 2013 (UTC)
 * This is indeed a strange error. The sitelinks returned are definitely not nil on the items you gave as an example. A first glance at the code of the module you wrote didn't show anything unusual. Does the error persist? --Jens Ohlig (talk) 13:18, 5 April 2013 (UTC)
 * Yes, it's still an error with comment . Ah, I've got what causes this error: it's while trying to get   (male sex for humans, has no sitelinks). The function should be fixed to return nil silently in such cases, I believe. Ignatus (talk) 18:54, 6 April 2013 (UTC)
 * You are correct. I will commit a patch to solve this. Thanks for the error report! --Jens Ohlig (talk) 01:43, 7 April 2013 (UTC)
 * The patch now awaits approval at Gerrit Code Review--Jens Ohlig (talk) 01:54, 7 April 2013 (UTC)
 * And abandoned the patch. User:Tpt offered a better solution which I just merged. --Jens Ohlig (talk) 11:00, 8 April 2013 (UTC)
 * I've rewritten the module to catch it with pcall, now it works on all known pages. Ignatus (talk) 19:31, 6 April 2013 (UTC)
 * And if the identifier is not  (e.g.  ), module raises an error which is uncatchable; I think it also should be somehow moderated. Ignatus (talk) 19:18, 6 April 2013 (UTC)
 * I clarified this in the documentation. Thanks again. --Jens Ohlig (talk) 02:14, 7 April 2013 (UTC)


 * This issue has been raised 30/3 by User:Tpt who issued a patch here https://gerrit.wikimedia.org/r/#/c/56737/ HenkvD (talk) 17:27, 7 April 2013 (UTC)
 * Merged it. --Jens Ohlig (talk) 11:00, 8 April 2013 (UTC)

Hopes for getEntity and getProperty

 * Now, Lua calls to wikibase give many Script Errors. In this module, used in this page, I wrote the function wikidata. But better not blocking error messages could be usefull for many users.
 * To never receive Script Errors, I use :

local dat = wd.entity.claims if dat.p18 then wd.image = dat.p18[0].mainsnak.datavalue.value end -- (because dat["p18"][0] do not works)
 * Like DixonD upper, I hope  and
 * Even exactly  which return a string or nil, and where the element code is not necessary inside a page-element, but where it permits to document the module or the templates elsewhere out of main space, and to build genealogies or species classifications.
 * Now Lua modules work in fr.wikisource, but  do not works. Thanks for a better future. --Rical (talk) 16:02, 13 June 2013 (UTC)

Array numbering
In the examples, it is traditionaly for Lua from 1, but really, since I know, it's from 0. Ignatus (talk) 10:09, 20 July 2013 (UTC)