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2021-11-22T21:33:26Z

Created page with "{{draft}} {{Message | type = attention | '''New Version (May 2013)''' This is a subset of the previous draft! }} This page describes..."

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{{draft}}
{{Message | type = attention | '''New Version (May 2013)'''
This is a subset of the [[Wikidata/Notes/Inclusion_syntax_v0.3|previous draft]]!
}}

This page describes the data inclusion syntax for the Wikibase client, by which the [[d:Wikidata:Glossary#Entities, Items, Properties and Queries|properties]] of data items can be included and rendered on a wiki page using templates. In short: This is how we want Wikipedia articles to include data from Wikidata.

The inclusion syntax presented here is meant to work for very simple cases, and only for them.

Complicated cases are to be realized using [[mw:Extension:WikibaseClient/Lua|Lua]].

== Accessing Item Data ==

=== Properties ===

Properties of a Wikidata Item can be used via the #property parser function:

<nowiki>{{#property:P36}}</nowiki>
<nowiki>{{#property:capital}}</nowiki>

This will provide a representation of the value of the <code>capital</code> property of the page's default item. The default item is the Wikidata item that is associated with this page via language links.

The property label is case sensitive. It is also possible to use the identifier of the property (this is more stable against changes of the label of a property).

=== Properties of different items ===

To access properties of a different item, it has to be specified explicitly by its ID. (This was implemented in [[phab:T49930]].)

* <code><nowiki>{{#property:P36|from=Q183}}</nowiki></code> → {{#property:P36|from=Q183}}
* <code><nowiki>{{#property:capital|from=Q183}}</nowiki></code> → {{#property:capital|from=Q183}}

Specification of the item by its Wikipedia title ''is not implemented yet'':

* <code><nowiki>{{#property:P36|from=Germany}}</nowiki></code> → {{#property:P36|from=Germany}}
* <code><nowiki>{{#property:capital|from=Germany}}</nowiki></code> → {{#property:capital|from=Germany}}
* <s>However, using [[Scribunto|Scribunto]], ''<nowiki>msg = mw.message.newRawMessage("{{#property:capital}}"):title("Germany"):text()</nowiki>'' will return "Bonn, Berlin" from any page. (Presently this result will not be updated when the Wikidata entry is updated)</s> This workaround has been intentionally rendered inoperative.<sup>[https://www.mediawiki.org/w/index.php?title=Extension:Scribunto/Lua_reference_manual&diff=900259&oldid=898845]</sup> You can use Wikidata if you run an external site that is free to make use of its API.
* Another workaround: Scribunto function '''[[mw:Extension:Wikibase Client/Lua#mw.wikibase.getEntityIdForTitle|mw.wikibase.getEntityIdForTitle]]''' (not implemented yet - [[phab:T74815]])

=== Property rank and multiple values ===

If a Wikidata property value has a "deprecated rank", <nowiki>{{#property:}}</nowiki> will not display it:

* {{Q|Q25899}} has {{Q|P3520}} value LEROUROB01 (deprecated rank)
** <code><nowiki>{{#property:P3520|from=Q25899}}</nowiki></code> → {{#property:P3520|from=Q25899}}
* {{Q|Q25899}} has {{Q|P213}} value 0000 0004 3980 4014 (normal rank)
** <code><nowiki>{{#property:P213|from=Q25899}}</nowiki></code> → {{#property:P213|from=Q25899}}

If a Wikidata property has multiple values, <nowiki>{{#property:}}</nowiki> will only display the highest ranked values:

* {{Q|Q182462}} has {{Q|P1220}} values 41898 (preferred rank) and 80344 (normal rank)
** <code><nowiki>{{#property:P1220|from=Q182462}}</nowiki></code> → {{#property:P1220|from=Q182462}}
* {{Q|Q2894503}} has {{Q|P1220}} values 57807 and 69418 (both normal rank)
** <code><nowiki>{{#property:P1220|from=Q2894503}}</nowiki></code> → {{#property:P1220|from=Q2894503}}

== Work in progress ==
{{Update|type=section|comment=Listed properties are in use but work may not be complete.}}

[[Category:Wikidata]]

Meta:Wikidata/Notes/Inclusion syntax - Revision history

Bmueller: Created page with "{{draft}} {{Message | type = attention | '''New Version (May 2013)''' This is a subset of the previous draft! }} This page describes..."