Error
- mwversion: 1.41.0-wmf.13
- reqId: 996a57dc-48a5-4fbf-9ef9-d1590828a82b
- Find reqId in Logstash
normalized_message
[{reqId}] {exception_url} Error: Call to undefined method Wikibase\DataModel\Entity\Item::getRepresentations()exception.trace
from /srv/mediawiki/php-1.41.0-wmf.13/extensions/WikibaseLexeme/src/Presentation/Formatters/FormIdTextFormatter.php(57)
#0 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/EntityIdValueFormatter.php(44): Wikibase\Lexeme\Presentation\Formatters\FormIdTextFormatter->formatEntityId(Wikibase\DataModel\Entity\ItemId)
#1 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/DispatchingValueFormatter.php(72): Wikibase\Lib\Formatters\EntityIdValueFormatter->format(Wikibase\DataModel\Entity\EntityIdValue)
#2 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/PropertyValueSnakFormatter.php(148): Wikibase\Lib\Formatters\DispatchingValueFormatter->formatValue(Wikibase\DataModel\Entity\EntityIdValue, string)
#3 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/PropertyValueSnakFormatter.php(117): Wikibase\Lib\Formatters\PropertyValueSnakFormatter->formatValue(Wikibase\DataModel\Entity\EntityIdValue, string)
#4 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/DispatchingSnakFormatter.php(150): Wikibase\Lib\Formatters\PropertyValueSnakFormatter->formatSnak(Wikibase\DataModel\Snak\PropertyValueSnak)
#5 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/lib/includes/Formatters/ErrorHandlingSnakFormatter.php(68): Wikibase\Lib\Formatters\DispatchingSnakFormatter->formatSnak(Wikibase\DataModel\Snak\PropertyValueSnak)
#6 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/repo/includes/Api/FormatSnakValue.php(177): Wikibase\Lib\Formatters\ErrorHandlingSnakFormatter->formatSnak(Wikibase\DataModel\Snak\PropertyValueSnak)
#7 /srv/mediawiki/php-1.41.0-wmf.13/extensions/Wikibase/repo/includes/Api/FormatSnakValue.php(145): Wikibase\Repo\Api\FormatSnakValue->formatValue(array, Wikibase\DataModel\Entity\EntityIdValue, NULL)
#8 /srv/mediawiki/php-1.41.0-wmf.13/includes/api/ApiMain.php(1913): Wikibase\Repo\Api\FormatSnakValue->execute()
#9 /srv/mediawiki/php-1.41.0-wmf.13/includes/api/ApiMain.php(890): ApiMain->executeAction()
#10 /srv/mediawiki/php-1.41.0-wmf.13/includes/api/ApiMain.php(861): ApiMain->executeActionWithErrorHandling()
#11 /srv/mediawiki/php-1.41.0-wmf.13/api.php(95): ApiMain->execute()
#12 /srv/mediawiki/php-1.41.0-wmf.13/api.php(48): wfApiMain()
#13 /srv/mediawiki/w/api.php(3): require(string)
#14 {main}Impact
Minimal. An invalid request with no sensible interpretation can be used to trigger logspam. Only one actual occurrence in logstash.
Notes
The decoded request URL is:
- action: wbformatvalue
- datavalue: {"value":{"id":"Q96"},"type":"wikibase-entityid"}
- property: Wikidata property example for forms (P5193)
In other words, someone’s formatting an item ID value with a property that’s intended for form IDs, hence the type error. The formatter just needs to handle this a bit more carefully (producing a better error when the given value doesn’t look as expected).
A similar exception was previously seen in CI: T201988: FormIdHtmlFormatter: Call to undefined method Item::getRepresentations()