Add Link/Diagram: Fetching and completing link recommendation tasks
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Compatible with https://sequencediagram.org
title Link recommendation service (task fetch and completion) actor User User->SpecialHomepage:Navigate to Special:Homepage, suggested edits module loads SpecialHomepage<-ElasticSearch:list of tasks filtered by type/topic fetched from ElasticSearch backend. Tasks with "hasrecommendation:link" included in the query. SpecialHomepage->Article:User clicks on an article of "link-recommendation" type Article<-BeforePageDisplayHook:Hook runs on server-side BeforePageDisplayHook<-Database:get JSON link recommendation data from growthexperiments_link_recommendations cache table LinkRecommendationVisualEditorPlugin<-Article:VisualEditor link recommendation plugin loads with server-side exported JSON data for link recommendations LinkRecommendationVisualEditorPlugin->AddLinkSubmissionHandler:User interacts with link recommendation suggestions, and saves the article with link recommendations accepted/rejected/skipped AddLinkSubmissionHandler->Database:Link recommendations saved to growthexperiments_link_submissions, normal edit save also occurs with additional change tags added AddLinkSubmissionHandler->CachePurge:Article is removed from the task queue cache in growthexperiments_link_recommendations table AddLinkSubmissionHandler->ElasticSearch: Search index is updated to remove "hasrecommendation:link" flag for the article.