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Roadmap Storage layer implementation plan Work packages Development status RFC design document Annual Plan - SDC - Segment 1: Database Integration

MCR-related Gerrit changes (all) MCR-related Gerrit changes (open) Phabricator Workboard MCR-related Phabricator tasks (all) MCR-related Phabricator tasks (open)

Phabricator Link	Wiki Link	Status	Priority	Author	Owner	Tags	Projects	Subtasks	Parent Tasks
T107595	T107595: [RFC] Multi-Content Revisions								T174022: Implement multi-content revisions
T117279	T117279: [EPIC] Core should provide inline diffs as well as side by side (Move InlineDifferenceEngine into core / remove MobileDiff)								T202763: Update extensions which customize content diff rendering
T159708	T159708: Deploy WikibaseMediaInfo extension to production								T194750: Deploy Structured Data on Commons baseline
T161671	T161671: Compacting the revision table
T167246	T167246: Refactor "user" & "user_text" fields into "actor" reference table								T161671: Compacting the revision table
T174022	T174022: Implement multi-content revisions								T174043: Deploy Multi-Content Revisions
T174023	T174023: Implement MCR storage layer								T174022: Implement multi-content revisions T174044: Deploy MCR storage layer
T174024	T174024: Implement MCR revision retrieval interface								T174023: Implement MCR storage layer T174038: Initial implementation of MCR page update interface
T174025	T174025: Implement MCR revision retrieval legacy version								T174024: Implement MCR revision retrieval interface T174032: Make relevant API modules aware of MCR
T174028	T174028: Finalize database schema for MCR content meta-data								T174024: Implement MCR revision retrieval interface T174030: Implement DB schema migration tools for MCR T174045: DB schema migration for MCR
T174030	T174030: Implement DB schema migration tools for MCR								T174038: Initial implementation of MCR page update interface T174045: DB schema migration for MCR T183488: MCR schema migration stage 2: populate new fields
T174031	T174031: MCR: Include all slots in XML dumps
T174032	T174032: Make relevant API modules aware of MCR								T174022: Implement multi-content revisions
T174033	T174033: Refactor EditPage to allow multiple slots to be edited atomically [MCR]								T174022: Implement multi-content revisions T200570: Make ApiEditPage and ApiStashEdit API modules aware of MCR
T174035	T174035: Allow the view action to show multiple slots [MCR]								T174036: Diffs page should show diffs and content from multiple slots [MCR] T200572: Make ApiParse API module aware of MCR
T174036	T174036: Diffs page should show diffs and content from multiple slots [MCR]								T194750: Deploy Structured Data on Commons baseline
T174037	T174037: Implement single-slot UI [MCR]								T174022: Implement multi-content revisions
T174038	T174038: Initial implementation of MCR page update interface								T194729: Allow Wikibase Entities to be stored in alternative slots [MCR] T196087: Refactored implementation of MCR page update interface
T174043	T174043: Deploy Multi-Content Revisions
T174044	T174044: Deploy MCR storage layer								T174043: Deploy Multi-Content Revisions
T174045	T174045: DB schema migration for MCR								T174043: Deploy Multi-Content Revisions
T174047	T174047: Hide deprecated/unused fields on toolforge replica [MCR]								T183487: MCR schema migration stage 3: stop using legacy fields T198312: Set the WMF cluster to use the new MCR-only schema
T180210	T180210: Improve test coverage for Revision class								T174038: Initial implementation of MCR page update interface
T180989	T180989: Improve Test Coverage for WikiPage class								T174038: Initial implementation of MCR page update interface
T182678	T182678: [MCR] Script for populating empty ar_rev_id fields								T174030: Implement DB schema migration tools for MCR T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T182682	T182682: [MCR] Script(s) for populating new tables (slots, content, content_models, slot_roles)								T174030: Implement DB schema migration tools for MCR
T183486	T183486: MCR schema migration stage 0: create tables								T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T183487	T183487: MCR schema migration stage 3: stop using legacy fields								T183490: MCR schema migration stage 4: Migrate External Store URLs (wmf production)
T183488	T183488: MCR schema migration stage 2: populate new fields								T174044: Deploy MCR storage layer T183487: MCR schema migration stage 3: stop using legacy fields T198308: Enable MCR migration stage "write both, read new" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki
T183489	T183489: MCR schema migration stage 1: Fix Legacy Archive Rows								T183488: MCR schema migration stage 2: populate new fields
T183490	T183490: MCR schema migration stage 4: Migrate External Store URLs (wmf production)								T174045: DB schema migration for MCR
T183777	T183777: Some PHPUnit tests consistently fail when collecting coverage report
T183798	T183798: Flaky user tests/De-captialising tests/phpunit/includes/Storage shouldn't cause user test breakages
T184629	T184629: Run maintenance/migrateArchiveText.php on all wikis								T183489: MCR schema migration stage 1: Fix Legacy Archive Rows T33223: Remove old archive.ar_text/archive.ar_flags
T185793	T185793: Revision hash needs to consider content model and slot role								T174022: Implement multi-content revisions
T186371	T186371: Redesign revision-related event schemas for MCR
T187153	T187153: Special:Abuselog throws when viewing details or examining (BadMethodCallException: Call get getId() on null)
T187935	T187935: Allow cross-slot access during HTML rendering.								T174022: Implement multi-content revisions T200687: MCR support in TemplateStyles
T188396	T188396: It should be possible to understand the reason of revision creation from RevisionRecordInserted hook
T189220	T189220: Ensure that relevant extensions are MCR-aware								T174022: Implement multi-content revisions
T189808	T189808: Make undo work with multiple slots.								T174022: Implement multi-content revisions
T190063	T190063: Tracking dependencies for multiple Content objects per page (MCR)								T194037: Track dependencies for multiple Content objects per page T199352: Deploy Structured Data on Commons with arbitrary Statements
T190066	T190066: Expose all slots to the search interface								T174022: Implement multi-content revisions
T191795	T191795: Support MCR in mobile								T189220: Ensure that relevant extensions are MCR-aware
T192306	T192306: Create MCR test wiki on WM Cloud								T196653: Test MCR Storage Layer Patches
T192307	T192307: Provide MCR-aware hook points								T196087: Refactored implementation of MCR page update interface
T192926	T192926: Schema change to drop archive.ar_text and archive.ar_flags								T33223: Remove old archive.ar_text/archive.ar_flags
T193180	T193180: Clean up archive rows with duplicate revision IDs								T183489: MCR schema migration stage 1: Fix Legacy Archive Rows
T194015	T194015: Make PageArchive aware of MCR								T174023: Implement MCR storage layer
T194034	T194034: Make rollback inherit all slots from the target version								T174023: Implement MCR storage layer
T194037	T194037: Track dependencies for multiple Content objects per page								T189220: Ensure that relevant extensions are MCR-aware T196087: Refactored implementation of MCR page update interface T199352: Deploy Structured Data on Commons with arbitrary Statements
T194038	T194038: Introduce ContentHandler::getSecondaryDataUpdates to replace Content::getSecondaryDataUpdates								T194037: Track dependencies for multiple Content objects per page
T194042	T194042: Replace usages of WikiPage::prepareContentForEdit								T196087: Refactored implementation of MCR page update interface
T194043	T194043: Replace usages of Content::getSecondaryDataUpdates								T194037: Track dependencies for multiple Content objects per page
T194046	T194046: Introduce SlotRoleHandler and SlotRoleRegistry for declaring slot roles.								T200915: Allow SlotRoleHandlers to control page layout T205444: Provide a way of having a meaningful slot header T205459: Decide how SlotRoleHandlers can provide placeholders for missing slots T209924: Specify PageTypeHandler
T194048	T194048: Introduce RevisionRenderer (baseline)								T174035: Allow the view action to show multiple slots [MCR] T194042: Replace usages of WikiPage::prepareContentForEdit T200915: Allow SlotRoleHandlers to control page layout
T194049	T194049: Introduce SlotRenderingProvider								T194037: Track dependencies for multiple Content objects per page T194042: Replace usages of WikiPage::prepareContentForEdit T194048: Introduce RevisionRenderer (baseline)
T194263	T194263: Deprecate/Remove ContentHandler::makeParserOptions()								T194048: Introduce RevisionRenderer (baseline)
T194412	T194412: Make undo fail gracefully for non-main slots.								T189808: Make undo work with multiple slots.
T194429	T194429: Remove the need to generate ParserOutput before PageContentSave hook is called
T194729	T194729: Allow Wikibase Entities to be stored in alternative slots [MCR]								T159708: Deploy WikibaseMediaInfo extension to production T194750: Deploy Structured Data on Commons baseline
T194730	T194730: Ensure that Wikibase data access to MediaInfo on file description pages works with MCR
T194731	T194731: Show diffs for all slots [MCR]								T174036: Diffs page should show diffs and content from multiple slots [MCR] T200216: Make undo work with SDC by showing a UI to confirm undo without allowing an edit T200569: Make ApiComparePages API module aware of MCR
T194734	T194734: Implement edit conflict resolution for MCR								T174033: Refactor EditPage to allow multiple slots to be edited atomically [MCR]
T194736	T194736: Implement automatic conflict resolution for all slots [MCR]								T194734: Implement edit conflict resolution for MCR
T194750	T194750: Deploy Structured Data on Commons baseline								T199352: Deploy Structured Data on Commons with arbitrary Statements T199375: Complete implementation and deployment of MCR SDC baseline (CDP4) T204732: Provide a way to restore an old revision with multiple slots.
T194830	T194830: Refactor DifferenceEngine								T117279: [EPIC] Core should provide inline diffs as well as side by side (Move InlineDifferenceEngine into core / remove MobileDiff)
T195069	T195069: Factor PageStore and PageRecord out of WikiPage								T196087: Refactored implementation of MCR page update interface
T195212	T195212: ServiceContainer: Allow extensions to manipulate services upon creation
T195692	T195692: Attempt to undelete page causes error: Fatal exception of type IncompleteRevisionException: user_text field must not be !
T195779	T195779: MCR support in ORES								T189220: Ensure that relevant extensions are MCR-aware
T195980	T195980: Write a specification for the architecture for handling slots								T194046: Introduce SlotRoleHandler and SlotRoleRegistry for declaring slot roles.
T196082	T196082: npm install for selenium tests not working on labs-vagrant								T192306: Create MCR test wiki on WM Cloud
T196087	T196087: Refactored implementation of MCR page update interface								T174022: Implement multi-content revisions
T196172	T196172: Test schema migration script								T183488: MCR schema migration stage 2: populate new fields
T196585	T196585: Deploy some MCR related patches on test / group0 for an extended period								T174044: Deploy MCR storage layer
T196653	T196653: Test MCR Storage Layer Patches								T174024: Implement MCR revision retrieval interface T174038: Initial implementation of MCR page update interface T194043: Replace usages of Content::getSecondaryDataUpdates
T197619	T197619: Introduce SCHEMA_COMPAT_XXX constants to allow more fine grained control over the migration process								T197818: Enable MCR migration stage "write both, read old" on commons beta.
T197685	T197685: Clarify semantics of "base revision" and "parent revision" in EditPage, WikiPage, and PageUpdater								T174038: Initial implementation of MCR page update interface
T197816	T197816: Enable MCR migration stage "write both, read old" on live systems								T183488: MCR schema migration stage 2: populate new fields T194750: Deploy Structured Data on Commons baseline T198308: Enable MCR migration stage "write both, read new" on live systems
T197817	T197817: Enable MCR migration stage "write both, read old" on testwiki								T197816: Enable MCR migration stage "write both, read old" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki
T197818	T197818: Enable MCR migration stage "write both, read old" on commons beta.								T197817: Enable MCR migration stage "write both, read old" on testwiki T198311: Enable MCR migration stage "write both, read new" on commons beta.
T198024	T198024: [[MediaWiki:Undo-main-slot-only]] translation issue
T198075	T198075: RFC: factoring page update logic out of WikiPage								T196087: Refactored implementation of MCR page update interface
T198099	T198099: Improve MCR handling of RevisionAccessException family								T174032: Make relevant API modules aware of MCR
T198297	T198297: Use PageUpdater to create dummy revisions								T174022: Implement multi-content revisions
T198308	T198308: Enable MCR migration stage "write both, read new" on live systems								T174044: Deploy MCR storage layer T194750: Deploy Structured Data on Commons baseline
T198309	T198309: Enable MCR migration stage "write both, read new" on testwiki								T198308: Enable MCR migration stage "write both, read new" on live systems
T198311	T198311: Enable MCR migration stage "write both, read new" on commons beta.								T198309: Enable MCR migration stage "write both, read new" on testwiki T198559: Set Beta Cluster wikis to use the new MCR-only schema T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI
T198312	T198312: Set the WMF cluster to use the new MCR-only schema								T183487: MCR schema migration stage 3: stop using legacy fields
T198341	T198341: Remove all references to the rev_text_id and ar_text_id fields
T198342	T198342: Remove all usages of the 'text' flag in calls to Revision::getQueryInfo() and RevisionStore::getQueryInfo().								T198341: Remove all references to the rev_text_id and ar_text_id fields
T198343	T198343: Replace all calls to Revision::getRevisionText()								T198341: Remove all references to the rev_text_id and ar_text_id fields
T198413	T198413: Allow multiple slots to be used while still writing to the old as well as the new schema								T174023: Implement MCR storage layer T194750: Deploy Structured Data on Commons baseline T198311: Enable MCR migration stage "write both, read new" on commons beta.
T198449	T198449: Rollback from autopatrolled user was marked as not patrolled
T198492	T198492: Create a maintenance script to drop rev_text_id and ar_text_id from the database.								T174022: Implement multi-content revisions T174043: Deploy Multi-Content Revisions
T198557	T198557: Remove the ability to write pre-MCR fields, limit the ability to read pre-MCR fields to migration scripts								T198492: Create a maintenance script to drop rev_text_id and ar_text_id from the database.
T198558	T198558: Set testwiki to use the new MCR-only schema								T198312: Set the WMF cluster to use the new MCR-only schema
T198559	T198559: Set Beta Cluster wikis to use the new MCR-only schema								T198558: Set testwiki to use the new MCR-only schema
T198561	T198561: Make "write both, read new" the default MCR migration stage for fresh MediaWiki installs / for CI								T174044: Deploy MCR storage layer T198308: Enable MCR migration stage "write both, read new" on live systems T198309: Enable MCR migration stage "write both, read new" on testwiki

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