Page MenuHomePhabricator

Allow mw.wikibase.getEntity and getProperty to access arbitrary Wikidata items
Closed, ResolvedPublic


I hope mw.wikibase.getEntity("Q535") and mw.wikibase.getProperty("p20")

  • Even exactly mw.wikibase.getProperty("p20", "Q535") which return a string or nil,
  • and where the element code is not necessary inside a page-element,
  • and where it permits to document the module or the templates elsewhere out of their spaces, and to build genealogies or species classifications.

other : Now Lua modules work in fr.wikisource, but mw.wikibase.getEntity() do not works. Thanks in advance. I am Rical in wikis.

Version: unspecified
Severity: enhancement



Related Objects

View Standalone Graph
This task is connected to more than 200 other tasks. Only direct parents and subtasks are shown here. Use View Standalone Graph to show more of the graph.

Event Timeline

bzimport raised the priority of this task from to Medium.Nov 22 2014, 2:06 AM
bzimport set Reference to bz49805.
bzimport added a subscriber: Unknown Object (MLST).

Sorry : hopes to document the modules or the templates in any namespaces. My present works is Module:Auteur in test2.wikipedia and fr.wikisource

Sorry, I have problems to understand "I hope mw.wikibase.getEntity("Q535") and mw.wikibase.getProperty("p20")". How can you hope a function?

What exactly is the request here? What is the current outcome, and what is the expected outcome?

Rical: The mw.wikibase library is provided by Wikidata. There doesn't seem to be anything here that is specific to Scribunto. Why did you reassign it?

In the module or template Auteur/doc I must show examples, but a module page is not an element, then wikidata give nothing to mw.wikibase.getEntity(), and mw.wikibase.getEntity("Q535") do not works.

Also in wikidata:Victor Hugo the country property give 142, but in Lua, I cannot ask mw.wikibase.getEntity("Q142").

Then I hope that mw.wikibase.getEntity("Q535") works for any element.

Get a property by Lua is very hard by present Lua, because in many cases the result is a script error. Go to see what I wrote in
to read some properties from one element
in the function m.wikidata, at least and really many more that :

local entity = mw.wikibase.getEntity( )
local dat =
wd.image = dat.p18[0].mainsnak.datavalue.value = dat.p27[0].mainsnak.datavalue.value["numeric-id"]

Reading[0] (and others) does not work if one writes["p18"][0]
then I can't do a loop from a list of properties to query.

Then I hope that mw.wikibase.getProperty("p20") works for any property.
or entity.getProperty("p20")
which return nil or .value or .value["numeric-id"]

When getEntity("Q535") and getProperty("p20") already exist, we must thinks about users that want make généalogies or biologic classifications.
They probably will like mw.wikibase.getProperty("p20", "Q535") which return a string or
nil, and where the element is optional.

Sorry for "Scribunto", I don't known where to include a Lua bug.

From my experience, you get script error if the item doesn't have label in your language and/or the article doesn't exist for that language edition. Therefore it's impossible to generate a red link from current mw.wikibase. It's an error that should be caught by the code.

2 changes and 1 option ?

My tests are in 2 pages which use the same module :
which give : entity = Q535 , sitelink = Victor Hugo
which give : getEntity=ERREUR

In my mind, there are 2 changes to do :

  • Never return script error, then return nil if the page/query or the property don't exists.
  • Return the property if it exists.
  • Perhaps the script error masks some other usefull return.

An option ?

  • Perhaps, in some cases, a third parameter could ask a type for the returned value, for date format... And a type/format could be returned as a second value.
  • This bug has been marked as a duplicate of bug 47930 ***