Lucas_Werkmeister_WMDE created this task. Lucas_Werkmeister_WMDE added projects: Wikidata, MediaWiki-extensions-WikibaseClient, Wikimedia-production-error. Restricted Application added a subscriber: Aklapper.
TASK DESCRIPTION As a Wikidata editor, I want to be able to query for entity usage in SPARQL, through MWAPI. (Brought up here <https://www.wikidata.org/w/index.php?title=Wikidata:Request_a_query&oldid=1197545134#Mwapi_usage>.) As a developer, I want API modules that advertise themselves as being possible generators to be usable as generators, instead of producing errors in production. **Problem:** Wikibase Client’s wblistentityusage Action API module produces a `RuntimeException` when it’s used as a generator. **Example:** https://en.wikipedia.org/w/api.php?action=query&format=json&generator=wblistentityusage&gwbeuentities=Q1&gwbeulimit=1 counterexample RuntimeException from line 306 of /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiResult.php: Conflicting keys (31880) when attempting to merge element pages #0 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiResult.php(412): ApiResult::setValue(array, string, array, integer) #1 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiQuery.php(426): ApiResult->addValue(string, string, array) #2 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiQuery.php(251): ApiQuery->outputGeneralPageInfo() #3 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiMain.php(1583): ApiQuery->execute() #4 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiMain.php(523): ApiMain->executeAction() #5 /srv/mediawiki/php-1.35.0-wmf.34/includes/api/ApiMain.php(494): ApiMain->executeActionWithErrorHandling() #6 /srv/mediawiki/php-1.35.0-wmf.34/api.php(84): ApiMain->execute() #7 /srv/mediawiki/w/api.php(3): require(string) #8 {main} The number of conflicting keys (apparently page IDs) reported varies with the `gwbeulimit`: https://en.wikipedia.org/w/api.php?action=query&format=json&generator=wblistentityusage&gwbeuentities=Q1&gwbeulimit=5 counterexample Conflicting keys (31880, 23674715) when attempting to merge element pages **Screenshots/mockups:** **BDD** GIVEN AND WHEN AND THEN AND **Acceptance criteria:** - The API module can be used as a generator. **Open questions:** TASK DETAIL https://phabricator.wikimedia.org/T254334 EMAIL PREFERENCES https://phabricator.wikimedia.org/settings/panel/emailpreferences/ To: Lucas_Werkmeister_WMDE Cc: Lucas_Werkmeister_WMDE, Aklapper, darthmon_wmde, Nandana, lucamauri, Lahi, Gq86, GoranSMilovanovic, QZanden, LawExplorer, _jensen, rosalieper, Scott_WUaS, Wikidata-bugs, aude, Jdforrester-WMF, Mbch331, Rxy, Jay8g, Krenair
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