MediaWiki version: 1.35.0-wmf.10
PHP Warning: Wikibase\Rdf\DispatchingValueSnakRdfBuilder::getValueBuilder: No RDF builder defined for data type wikibase-lexeme nor for value type bad. [Called from Wikibase\Rdf\DispatchingValueSnakRdfBuilder::getValueBuilder in /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/DispatchingValueSnakRdfBuilder.php at line 75]
#0 [internal function]: MWExceptionHandler::handleError(integer, string, string, integer, array)
#1 /srv/mediawiki/php-1.35.0-wmf.10/includes/debug/MWDebug.php(333): trigger_error(string, integer)
#2 /srv/mediawiki/php-1.35.0-wmf.10/includes/debug/MWDebug.php(188): MWDebug::sendMessage(string, array, string, integer)
#3 /srv/mediawiki/php-1.35.0-wmf.10/includes/GlobalFunctions.php(1079): MWDebug::warning(string, integer, integer, string)
#4 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/DispatchingValueSnakRdfBuilder.php(75): wfLogWarning(string)
#5 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/DispatchingValueSnakRdfBuilder.php(50): Wikibase\Rdf\DispatchingValueSnakRdfBuilder->getValueBuilder(string, string)
#6 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/SnakRdfBuilder.php(133): Wikibase\Rdf\DispatchingValueSnakRdfBuilder->addValue(Wikimedia\Purtle\TurtleRdfWriter, string, string, string, Wikibase\DataModel\Snak\PropertyValueSnak)
#7 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/SnakRdfBuilder.php(84): Wikibase\Rdf\SnakRdfBuilder->addSnakValue(Wikimedia\Purtle\TurtleRdfWriter, Wikibase\DataModel\Snak\PropertyValueSnak, string)
#8 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/FullStatementRdfBuilder.php(243): Wikibase\Rdf\SnakRdfBuilder->addSnak(Wikimedia\Purtle\TurtleRdfWriter, Wikibase\DataModel\Snak\PropertyValueSnak, string)
#9 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/FullStatementRdfBuilder.php(140): Wikibase\Rdf\FullStatementRdfBuilder->addMainSnak(Wikibase\DataModel\Entity\ItemId, string, Wikibase\DataModel\Statement\Statement, boolean)
#10 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/FullStatementRdfBuilder.php(126): Wikibase\Rdf\FullStatementRdfBuilder->addStatement(Wikibase\DataModel\Entity\ItemId, Wikibase\DataModel\Statement\Statement, boolean)
#11 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/FullStatementRdfBuilder.php(258): Wikibase\Rdf\FullStatementRdfBuilder->addStatements(Wikibase\DataModel\Entity\ItemId, Wikibase\DataModel\Statement\StatementList)
#12 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/RdfBuilder.php(430): Wikibase\Rdf\FullStatementRdfBuilder->addEntity(Wikibase\DataModel\Entity\Item)
#13 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Rdf/RdfBuilder.php(411): Wikibase\Rdf\RdfBuilder->addSingleEntity(Wikibase\DataModel\Entity\Item)
#14 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/LinkedData/EntityDataSerializationService.php(236): Wikibase\Rdf\RdfBuilder->addEntity(Wikibase\DataModel\Entity\Item)
#15 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/LinkedData/EntityDataSerializationService.php(182): Wikibase\Repo\LinkedData\EntityDataSerializationService->rdfSerialize(Wikibase\Lib\Store\EntityRevision, NULL, array, Wikibase\Rdf\RdfBuilder, string)
#16 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/LinkedData/EntityDataRequestHandler.php(522): Wikibase\Repo\LinkedData\EntityDataSerializationService->getSerializedData(string, Wikibase\Lib\Store\EntityRevision, NULL, array, string)
#17 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/LinkedData/EntityDataRequestHandler.php(268): Wikibase\Repo\LinkedData\EntityDataRequestHandler->showData(WebRequest, OutputPage, string, Wikibase\DataModel\Entity\ItemId, integer)
#18 /srv/mediawiki/php-1.35.0-wmf.10/extensions/Wikibase/repo/includes/Specials/SpecialEntityData.php(156): Wikibase\Repo\LinkedData\EntityDataRequestHandler->handleRequest(string, WebRequest, OutputPage)
#19 /srv/mediawiki/php-1.35.0-wmf.10/includes/specialpage/SpecialPage.php(575): Wikibase\Repo\Specials\SpecialEntityData->execute(string)
#20 /srv/mediawiki/php-1.35.0-wmf.10/includes/specialpage/SpecialPageFactory.php(611): SpecialPage->run(string)
#21 /srv/mediawiki/php-1.35.0-wmf.10/includes/MediaWiki.php(298): MediaWiki\Special\SpecialPageFactory->executePath(Title, RequestContext)
#22 /srv/mediawiki/php-1.35.0-wmf.10/includes/MediaWiki.php(967): MediaWiki->performRequest()
#23 /srv/mediawiki/php-1.35.0-wmf.10/includes/MediaWiki.php(530): MediaWiki->main()
#24 /srv/mediawiki/php-1.35.0-wmf.10/index.php(46): MediaWiki->run()
#25 /srv/mediawiki/w/index.php(3): require(string)
#26 {main}| Subject | Repo | Branch | Lines +/- | |
|---|---|---|---|---|
| [WIP] Add rdf-data-type for entity property types | mediawiki/extensions/WikibaseLexeme | master | +10 -0 |
Most likely due to the “subject lexeme” statements on Q16502; and indeed, in the generated TTL the values for these statements are missing:
wd:Q16502 p:P6254 s:Q16502-c103fdc1-42b3-4acd-ae27-f89dcb5efcfd .
s:Q16502-c103fdc1-42b3-4acd-ae27-f89dcb5efcfd a wikibase:Statement,
wikibase:BestRank ;
wikibase:rank wikibase:NormalRank ;
pq:P407 wd:Q1860 .There’s no wdt:P6254 triple on the subject entity nor a ps:P6254 triple on the statement node. Affects not just the “dump” flavor (request URL) but normal TTL as well.
The query service currently knows no statements for [wdt:P6254](https://query.wikidata.org/#DESCRIBE%20wdt%3AP6254) or [ps:P6254](https://query.wikidata.org/#DESCRIBE%20ps%3AP6254)… is it possible that this bug has been there all the time?
Looks like lexicographical data types are missing from the data type definititions:
lucaswerkmeister-wmde@mwdebug1001:~$ mwscript eval.php wikidatawiki <<< 'var_export( array_keys( \Wikibase\Repo\WikibaseRepo::getDefaultInstance()->getDataTypeDefinitions()->getRdfBuilderFactoryCallbacks( "prefixed" ) ) )' array ( 0 => 'PT:commonsMedia', 1 => 'PT:geo-shape', 2 => 'PT:tabular-data', 3 => 'PT:url', 4 => 'PT:external-id', 5 => 'VT:globecoordinate', 6 => 'VT:monolingualtext', 7 => 'VT:quantity', 8 => 'VT:string', 9 => 'VT:time', 10 => 'VT:wikibase-entityid', 11 => 'PT:musical-notation', 12 => 'PT:math', )
And yet, on https://www.wikidata.org/wiki/Special:EntityData/L123.ttl, they’re working just fine.
\Wikibase\Rdf\DispatchingValueSnakRdfBuilder::addValue seems to get an UnDeserializableValue
This is hard to reproduce, as apparently https://www.wikidata.org/wiki/Special:EntityData/Q16502.ttl?flavor=dump&nocache=1576233849693 was one of the affected urls, but it now works fine and doesn't cause any more errors?
I think this was a red herring, sorry. WikibaseLexeme defines that the value-type corresponding to PT:wikibase-lexeme (and form, sense) is wikibase-entityid, and VT:wikibase-entityid is defined. The problem is that the actual value type is bad rather than wikibase-entityid, which as @Michael said comes from an UnDeserializableValue.
This also affects the JSON output:
$ curl -s 'https://www.wikidata.org/wiki/Special:EntityData/Q16502.json' | jq '.entities.Q16502.claims.P6254[0].mainsnak.datavalue' { "value": { "entity-type": "lexeme", "numeric-id": 5203, "id": "L5203" }, "type": "wikibase-entityid", "error": "Can not parse id 'L5203' to build EntityIdValue with" }
I guess an entity ID parser for Lexemes is for some reason only registered when viewing Lexeme entities?
Change 616167 had a related patch set uploaded (by Ladsgroup; owner: Ladsgroup):
[mediawiki/extensions/WikibaseLexeme@master] [WIP] Add rdf-data-type for entity property types
This seems to work now, though I’m not aware of any specific change that would have made it work.
Edit:
$ curl -s 'https://www.wikidata.org/wiki/Special:EntityData/Q16502.json' | jq '.entities.Q16502.claims.P6254[0].mainsnak.datavalue' { "value": { "entity-type": "lexeme", "numeric-id": 5203, "id": "L5203" }, "type": "wikibase-entityid" }