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Maniphest T174023

Implement MCR storage layer
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Description

This ticket covers all refactoring and implementation work needed in MediaWiki core to allow page revisions with multiple content objects to be stored and retrieved.

This ticket does NOT cover any work needed to expose page revisions with multiple content objects externally via an API, UI, or dumps.

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StatusSubtypeAssignedTask
 DeclineddchenT118706 Conduct heuristic evaluation of image upload and insert flow in VisualEditor
 OpenNoneT115858 Design improvements for mw.ForeignStructuredUpload.BookletLayout
 OpenNoneT115865 Insert image in content immediately after it's uploaded, skipping the "General settings" step
 DuplicateNoneT115864 Figure out if the description of the image can be used as the caption on-wiki
 OpenFeatureNoneT53032 When inserting an image, set its caption by default to be the Commons image description
 OpenBUG REPORTNoneT12863 Links on commons upload summaries do not link to commons
 OpenNoneT5498 Image history is confusing
 StalledNoneT96384 Integrate file revisions with description page history
 OpenFeatureNoneT39534 Wikimedia Commons should support searching by color
 DuplicateNoneT39535 Wikimedia Commons should support filtering by color
 ResolvedNoneT19503 Provide metadata support on Wikimedia Commons
 OpenNoneT122038 Moving/Deleting a video file does not move/delete subtitles files, nor does it inform the file mover of their existence
 OpenNoneT135221 Make TimedText content an integral part of the File page
 OpenFeatureNoneT2167 Use a dedicated interface for adding meta-data like interwiki links, rather than wikitext
 OpenNoneT132072 Integrate page meta-data as a new content model revision slot for consistency and atomicity
 ResolvedNoneT51662 VisualEditor: Use Multimedia/Wikidata's proposed rich structured meta-data in the image insertion dialog
 ResolvedNoneT68108 [Epic] Store media information for files on Wikimedia Commons as structured data
 OpenFeatureNoneT14963 allow per-page exceptions to spam blacklist
 OpenNoneT203157 Make the spam whitelist its own slot
 ResolveddanielT161671 Compacting the revision table
 DuplicateNoneT184615 Once MCR is deployed, drop the rev_text_id, rev_content_model, and rev_content_format fields from the revision table
 OpenFeatureNoneT56140 Move TemplateData to its own JSON-content namespace and associate with Template-namespace, or to its own TemplateData content model and revision slot
 StalledNoneT174043 Deploy Multi-Content Revisions
 OpenNoneT174022 Implement multi-content revisions
 ResolveddanielT174044 Deploy MCR storage layer
 ResolveddanielT174023 Implement MCR storage layer
 ResolveddanielT174024 Implement MCR revision retrieval interface
 ResolveddanielT174025 Implement MCR revision retrieval legacy version
 ResolvedAnomieT166732 Refactor comment storage in the database and abstract access in MediaWiki
 ResolvedNoneT166798 Decide whether back-compat views for upcoming major schema changes will be provided in the Labs replicas
 DuplicateNoneT232531 Refactor Comment fields for CheckUser Component
 ResolveddanielT174028 Finalize database schema for MCR content meta-data
ResolvedAddshoreT188518 Implement Storage service for content models and slot roles
 ResolveddanielT189004 replace slot_inherited with slot_origin
 Resolved• MarosteguiT190153 DROP unused 'slots' table (WAS: In the slots table, replace slot_inherited with slot_origin)
 ResolvedAddshoreT188741 MCR Scheme change - Make rev_text_id DEFAULT 0
 Resolved• MarosteguiT190148 Change DEFAULT 0 for rev_text_id on production DBs
 ResolvedTgrT187586 Installer fails in RevisionStore
 ResolvedTgrT196653 Test MCR Storage Layer Patches
 ResolvedTgrT192306 Create MCR test wiki on WM Cloud
 Resolved• BstormT194239 Request creation of mcr-dev VPS project
 ResolvedCCicalese_WMFT196082 npm install for selenium tests not working on labs-vagrant
 ResolveddanielT194015 Make PageArchive aware of MCR
 ResolveddanielT194034 Make rollback inherit all slots from the target version
 ResolveddanielT198413 Allow multiple slots to be used while still writing to the old as well as the new schema

Event Timeline

daniel created this task.Aug 24 2017, 2:15 PM
daniel created subtask T174024: Implement MCR revision retrieval interface.Aug 24 2017, 2:20 PM
daniel created subtask T174038: Initial implementation of MCR page update interface.Aug 24 2017, 2:54 PM
daniel added a parent task: T174044: Deploy MCR storage layer.Aug 24 2017, 4:16 PM
daniel claimed this task.Aug 24 2017, 4:23 PM
daniel moved this task from Inbox to Watching on the MediaWiki-Platform-Team-Archived board.
CCicalese_WMF moved this task from Watching to MWPT-Q1-Jul-Sep-2017 on the MediaWiki-Platform-Team-Archived board.Oct 13 2017, 6:09 PM
CCicalese_WMF edited projects, added MediaWiki-Platform-Team-Archived (MWPT-Q1-Jul-Sep-2017); removed MediaWiki-Platform-Team-Archived.
CCicalese_WMF added a project: Epic.Oct 13 2017, 6:12 PM
CCicalese_WMF moved this task from Ready to In Progress on the MediaWiki-Platform-Team-Archived (MWPT-Q1-Jul-Sep-2017) board.
CCicalese_WMF edited projects, added MediaWiki-Platform-Team-Archived (MWPT-Q2-Oct-Dec-2017); removed MediaWiki-Platform-Team-Archived (MWPT-Q1-Jul-Sep-2017).Oct 13 2017, 8:34 PM
CCicalese_WMF moved this task from MWPT-Q2-Oct-Dec-2017 to Epic on the MediaWiki-Platform-Team-Archived board.Oct 19 2017, 9:29 PM
CCicalese_WMF edited projects, added MediaWiki-Platform-Team-Archived; removed MediaWiki-Platform-Team-Archived (MWPT-Q2-Oct-Dec-2017).
daniel added a project: Multi-Content-Revisions.Nov 20 2017, 7:32 PM
daniel moved this task from Inbox to Epic on the Multi-Content-Revisions board.Nov 20 2017, 7:42 PM
thiemowmde triaged this task as Medium priority.Dec 5 2017, 6:45 PM
Lydia_Pintscher moved this task from incoming to consider for next sprint on the Wikidata board.Dec 18 2017, 3:24 PM
Lydia_Pintscher moved this task from consider for next sprint to monitoring on the Wikidata board.
CCicalese_WMF moved this task from Epic to MCR-SDC Storage Layer - phase 1 on the Multi-Content-Revisions board.May 8 2018, 1:08 PM
CCicalese_WMF edited projects, added Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1); removed Multi-Content-Revisions.
CCicalese_WMF moved this task from Backlog to Done on the Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1) board.May 8 2018, 1:11 PM
CCicalese_WMF moved this task from MCR-SDC Storage Layer - phase 1 to Epic on the Multi-Content-Revisions board.May 10 2018, 4:19 PM
CCicalese_WMF edited projects, added Multi-Content-Revisions; removed Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1).
daniel added a subtask: T195069: Factor PageStore and PageRecord out of WikiPage.May 19 2018, 2:30 PM
CCicalese_WMF edited projects, added Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1); removed Multi-Content-Revisions.May 31 2018, 1:45 AM
CCicalese_WMF moved this task from Done to Epic on the Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1) board.
CCicalese_WMF removed a subtask: T174038: Initial implementation of MCR page update interface.May 31 2018, 5:24 PM
CCicalese_WMF removed a subtask: T196087: Refactored implementation of MCR page update interface.May 31 2018, 6:37 PM
CCicalese_WMF added a subtask: T174038: Initial implementation of MCR page update interface.
CCicalese_WMF removed a subtask: T174038: Initial implementation of MCR page update interface.
daniel closed subtask T174024: Implement MCR revision retrieval interface as Resolved.Jun 14 2018, 3:58 PM
daniel removed a subtask: T195069: Factor PageStore and PageRecord out of WikiPage.Jun 15 2018, 11:33 AM
daniel added a subtask: T194034: Make rollback inherit all slots from the target version.
Tgr closed subtask T194034: Make rollback inherit all slots from the target version as Resolved.Jun 23 2018, 3:19 PM
• Vvjjkkii reopened subtask T194034: Make rollback inherit all slots from the target version as Open.Jul 1 2018, 1:11 AM
CommunityTechBot closed subtask T194034: Make rollback inherit all slots from the target version as Resolved.Jul 2 2018, 6:44 AM
daniel added a subtask: T198413: Allow multiple slots to be used while still writing to the old as well as the new schema.Jul 4 2018, 12:26 PM
daniel closed subtask T198413: Allow multiple slots to be used while still writing to the old as well as the new schema as Resolved.Jul 8 2018, 4:29 PM
CCicalese_WMF removed a project: MediaWiki-Platform-Team-Archived.Jul 12 2018, 12:34 AM
CCicalese_WMF added a project: Core-Platform-Team-Old.
CCicalese_WMF moved this task from Inbox to Epic on the Core-Platform-Team-Old board.
daniel closed subtask T194015: Make PageArchive aware of MCR as Resolved.Jul 13 2018, 8:41 AM
daniel closed this task as Resolved.Jul 13 2018, 4:22 PM
CCicalese_WMF moved this task from Epic to Done on the Multi-Content-Revisions (MCR-SDC Storage Layer - phase 1) board.Jul 13 2018, 6:15 PM
CCicalese_WMF moved this task from Epic to Closed on the Core-Platform-Team-Old board.Aug 6 2018, 10:26 PM
Liuxinyu970226 awarded a token.Dec 2 2018, 6:54 AM
Magol subscribed.Dec 29 2018, 11:00 AM
DannyS712 mentioned this in T104033: Populate rev_content_model and rev_content_format when saving.Jan 15 2020, 7:11 AM
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