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1.10.0
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Wikibase
MediaWiki Wikibase extension
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Wikibase Client provides a Lua Scribunto interface that implements functions to access data from the Wikibase repository, if the Wikibase Client configuration enables allowDataTransclusion. Lua modules and wiki templates can invoke these functions.
Changes to the Wikibase Lua interface are subject to the Stable Interface Policy.
For ease of access and convenience Wikibase Lua library provides access to aspects (labels, descriptions, statements) either directly or by loading the whole entity. For improved performance, when accessing only specific aspects it is recommended to access them directly (without getEntity). On multilingual wikis accessing labels is based on user's language rather than Wiki's language. The following table summarizes the most common functions:
| Aspect | mw.wikibase.FUNCTION | entity:FUNCTION |
|---|---|---|
| Label in content or user language | getLabel/getLabelWithLang | getLabel/getLabelWithLang |
| Label by language, without fallbacks | getLabelByLang | NA |
| Description by language, without fallbacks | getDescriptionByLang | NA |
| Sitelinks | getSitelink | getSitelink |
| Badges | getBadges | NA |
| Descriptions | getDescription/getDescriptionWithLang | getDescription/getDescriptionWithLang |
| Statements | getBestStatements | getBestStatements |
| getAllStatements | getAllStatements |
mw.wikibase has general Lua functionality for working with Wikibase data.
wikibase.getEntity()
wikibase.getEntity( id )
This function is expensive when called with the ID of an entity not connected to the current page. Loading entities doesn't count as expensive if the same entity is loaded twice during a module run. However, due to restrictions in the caching, if more than 14 other entities are loaded inbetween, the entity must be fetched again, which then counts as expensive.
Gets a mw.wikibase.entity table with data of the Wikibase item requested by id. If no id was given, the item connected to the current page will be returned. Requesting an item by id is only supported if arbitrary access is enabled.
An example call might look like this:
wikibase.getEntityIdForCurrentPage()
Gets the item id of the item connected to the current page. Returns nil if no item is connected.
An example call might look like this:
wikibase.getEntityIdForTitle( pageTitle )
wikibase.getEntityIdForTitle( pageTitle, globalSiteId )
Takes a page title string either in the local wiki or an other wiki on the same cluster specified by the site global ID, and returns the item ID connected via a sitelink, if one exists. Returns nil if there's no linked item.
wikibase.getEntityUrl()
wikibase.getEntityUrl( id )
Takes an entity ID and returns the canonical URL to the entity in the repo.
If no ID was specified, the URL of the item connected to the current page will be returned, if the page is connected. An example call might look like this:
wikibase.getLabel()
wikibase.getLabel( id )
Takes an item ID and returns the label in the language of the local Wiki.
If no ID was specified, then the label of the item connected to the current page will be returned, if the page is indeed connected and a label exists. The label will either be in the Wiki's language (on monolingual wikis) or the user's language (on multilingual Wikis), furthermore language fallbacks will be applied. See also `mw.wikibase.getLabelWithLang`.
An example call might look like this:
wikibase.getLabelWithLang()
wikibase.getLabelWithLang( id )
Like `mw.wikibase.getLabel`, but has the language the returned label is in as an additional second return parameter.
An example call might look like this:
wikibase.getLabelByLang( id, languageCode )
Get the label from an entity for a specific language, returns the label as string or nil if it couldn't be found. This doesn't apply any language fallbacks.
Note: This should not be used to get the label in the user's language on multilingual wikis, use `mw.wikibase.getLabel` for that if by any means possible.
An example call might look like this:
wikibase.getDescriptionByLang( id, languageCode )
Get the description from an entity for a specific language, returns the label as string or nil if it couldn't be found. This doesn't apply any language fallbacks.
Note: This should not be used to get the description in the user's language on multilingual wikis, use `mw.wikibase.getDescription` for that if by any means possible.
An example call might look like this:
wikibase.getSitelink( itemId )
wikibase.getSitelink( itemId, globalSiteId )
Takes an item ID and returns the title of the corresponding page on the local Wiki or nil if it doesn't exist. This page title can be used to link to the given page.
When globalSiteId is given, the page title on the specified wiki is returned, rather than the one on the local wiki.
An example call might look like this:
wikibase.getBadges( itemId )
wikibase.getBadges( itemId, globalSiteId )
Takes an item ID and returns a list of all badges assigned to a site link.
When globalSiteId is given, the badges for the site link to the specified wiki are returned. This defaults to the local wiki.
An example call might look like this:
wikibase.getDescription()
wikibase.getDescription( id )
Takes an item ID and returns the description in the language of the local Wiki.
If no ID was specified, then the description of the item connected to the current page will be returned, if the page is indeed connected and a description exists. The description will either be in the Wiki's language (on monolingual wikis) or the user's language (on multilingual Wikis), furthermore language fallbacks will be applied. See also `mw.wikibase.getDescriptionWithLang`.
An example call might look like this:
wikibase.getDescriptionWithLang()
wikibase.getDescriptionWithLang( id )
Like `mw.wikibase.getDescription`, but has the language the returned description is in as an additional second return parameter.
An example call might look like this:
wikibase.isValidEntityId( entityIdSerialization )
Returns whether this a valid entity id. This does not check whether the entity in question exists, it just checks that the entity id in question is valid.
An example call might look like this:
wikibase.entityExists( id )
Returns whether the entity in question exists. Redirected entities are reported as existing too.
An example call might look like this:
wikibase.renderSnak( snakSerialization )
Renders a serialized Snak value to wikitext escaped plain text. This is useful for displaying References or Qualifiers.
An example call might look like this:
wikibase.formatValue( snakSerialization )
Renders a serialized Snak value to rich wikitext. This is useful for displaying References or Qualifiers.
An example call might look like this:
wikibase.renderSnaks( snaksSerialization )
Renders a list of serialized Snak values to wikitext escaped plain text. This is useful for displaying References or Qualifiers.
An example call might look like this:
wikibase.formatValues( snaksSerialization )
Renders a list of serialized Snak values to rich wikitext. This is useful for displaying References or Qualifiers.
An example call might look like this:
wikibase.resolvePropertyId( propertyLabelOrId )
Returns a property id for the given label or id. This allows using the property's labels instead of ids in all places. If no property was found for the label, a nil value is returned.
An example call might look like this:
wikibase.getPropertyOrder()
Returns a table with the order of property IDs as provided by the page MediaWiki:Wikibase-SortedProperties (<d:MediaWiki:Wikibase-SortedProperties> on Wikimedia operated sites). If the page does not exist, a nil value is returned.
An example call might look like this:
wikibase.orderProperties( tableOfPropertyIds )
Returns a table with the given property IDs ordered according to the page MediaWiki:Wikibase-SortedProperties (<d:MediaWiki:Wikibase-SortedProperties> on Wikimedia operated sites).
An example call might look like this:
wikibase.getBestStatements( entityId, propertyId )
Returns a table with the "best" statements matching the given property ID on the given entity ID. The definition of "best" is that the function will return "preferred" statements, if there are any, otherwise "normal" ranked statements. It will never return "deprecated" statements. This is what you usually want when surfacing values to an ordinary reader.
An empty table is returned if the entity doesn't exist or no statements with the requested property ID could be found.
An example call might look like this:
The returned structure is very similar to the Wikibase DataModel JSON schema for statements, and equivalent to the statement structures in mw.wikibase.entity.
An example might look like this:
wikibase.getAllStatements( entityId, propertyId )
Returns a table with all statements (including all ranks, even "deprecated") matching the given property ID on the given entity ID.
An empty table is returned if the entity doesn't exist or no statements with the requested property ID could be found.
An example call might look like this:
The structure of the returned table is identical to those obtained via mw.wikibase.getBestStatements.
If statements with the requested property ID exist, the table returned is equivalent to the content of mw.wikibase.getEntity( entityId ).claims[propertyId].
wikibase.getReferencedEntityId( fromEntityId, propertyId, toIds )
Get one referenced entity (out of toIds), from a given entity. The starting entity, and the target entities are (potentially indirectly, via intermediate entities) linked by statements with the given property ID, pointing from the starting entity to one of the target entities.
Returns one id of a referenced entity id, if it could be found. Returns nil if none of the given entities is referenced. Returns false if the search for a referenced entity had to be aborted due to resource limits or errors, thus the result is inconclusive.
Example calls might look like this:
wikibase.getGlobalSiteId()
Returns the site global ID (the site code used for site links) of the current wiki.
An example call might look like this:
These functions exist solely for backward compatibility, they should not be used in new code.
Alias for mw.wikibase.getEntity.
Alias for mw.wikibase.getLabel.
Alias for mw.wikibase.getDescription.
Alias for mw.wikibase.getSitelink.
mw.wikibase.entity represents a Wikibase entity in Lua. A mw.wikibase.entity table for the item which is linked with the current page can be obtained with `mw.wikibase.getEntity`.
Functions documented as mw.wikibase.entity.name are available on the global mw.wikibase.entity table; functions documented as mw.wikibase.entity:name are methods of an mw.wikibase.entity object (see `mw.wikibase.entity.create`).
The structure of this is very similar to the Wikibase DataModel JSON schema. This can be handily viewed with
in the Scribunto Debug console.
The following is a (heavily shortened) example, from the Wikidata item about Wikibase:
entity:getId()
Returns the ID of the entity, as a string. This is equivalent to the content of entity.id.
An example call might look like this:
entity:getLabel() entity:getLabel( langCode ) Returns the label of the entity in the language given as langCode or in the Wiki's content language (on monolingual wikis) or the user's language (on multilingual wikis). See also `mw.wikibase.entity:getLabelWithLang`.
An example call might look like this:
entity:getDescription()
entity:getDescription( langCode )
Returns the description of the entity in the language given as langCode or in the Wiki's content language (on monolingual wikis) or the user's language (on multilingual wikis). See also `mw.wikibase.entity:getDescriptionWithLang`.
An example call might look like this:
entity:getLabelWithLang()
entity:getLabelWithLang( langCode )
Like `mw.wikibase.entity:getLabel`, but has the language the returned label is in as an additional second return parameter.
An example call might look like this:
entity:getDescriptionWithLang()
entity:getDescriptionWithLang( langCode )
Like `mw.wikibase.entity:getDescription`, but has the language the returned description is in as an additional second return parameter.
An example call might look like this:
entity:getSitelink()
entity:getSitelink( globalSiteId )
Get the title with which the entity is linked in the current Wiki. If globalSiteId is given, the title the item is linked with in the given Wiki will be returned.
An example call might look like this:
entity:getProperties()
:This adds a statement usage for all statements present, therefore it should only be used if absolutely necessary.
Get a table with all property ids attached to the item.
An example call might look like this:
entity:getBestStatements( propertyIdOrLabel )
Get the best statements with the given property id or label. This includes all statements with rank "preferred" or, if no preferred ones exist, all statements with rank "normal". Statements with rank "deprecated" are never included.
An example call with property ID might look like this:
An example call with property label might look like this:
entity:getAllStatements( propertyIdOrLabel )
Returns a table with all statements (including all ranks, even "deprecated") matching the given property ID or property label.
An example call might look like this:
An example call with property label might look like this:
entity:formatPropertyValues( propertyLabelOrId )
entity:formatPropertyValues( propertyLabelOrId, acceptableRanks )
Get the values of the Statements with the given property (which is either identified by a property id, or by the label of the property), formatted as wikitext escaped plain text. Per default only the best claims will be returned. Alternatively a table with acceptable ranks can be given as second parameter (a mapping table with all ranks can be found in `mw.wikibase.entity.claimRanks`).
An example call might look like this:
value is an empty string ('') if there's no statement with the given property on the entity. value will be nil if the given property doesn't exist.
entity:formatStatements( propertyLabelOrId )
entity:formatStatements( propertyLabelOrId, acceptableRanks )
Like `mw.wikibase.entity:formatPropertyValues`, but the returned values will be formatted as rich wikitext, rather than just wikitext escaped plain text.
The mw.wikibase.entity.claimRanks table contains a map of all available claim ranks.
The available ranks are:
This can for example be used like this:
1.10.0