phabricator/resources/sql/patches/migrate-maniphest-dependencies.php

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// From 2013-2016, this migration moved dependent tasks to edges.
Use Edges to store dependencies between tasks in Maniphest Summary: - Use edges to store "X depends on Y" information in Maniphest. - Show both "Depends On" and "Dependent Tasks". - Migrate all the old edges. Test Plan: - Added some relationships, migrated, verified they were preserved. - Added some new valid relationships, verified tasks got updated with sensible transactions and sent reasonable emails. - Tried to add a cycle, got an ugly but effective error. Reviewers: vrana, btrahan Reviewed By: btrahan CC: aran Maniphest Tasks: T1162 Differential Revision: https://secure.phabricator.com/D3006 2012-07-18 20:41:42 -07:00			`<?php`

Remove three ancient columns from Maniphest tasks: attached, projectPHIDs, ccPHIDs Summary: Before edges, we stored some of this stuff directly on tasks. - `attached` was migrated to edges in Jan 2013. - `projectPHIDs` was never used, as far as I can tell? - `ccPHIDs` was migrated away and dropped more than a year ago. None of these columns are used in modern code (instead, modern code uses edges). Test Plan: `grep`, browsed around, `bin/storage upgrade`, unit tests. Reviewers: chad Reviewed By: chad Differential Revision: https://secure.phabricator.com/D15216 2016-02-08 12:17:16 -08:00			`// From 2013-2016, this migration moved dependent tasks to edges.`