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Include OriginalAuthor in Reaction constraint (#13505)

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When migrating repositories with reactions with deleted users, the original
author id may be -1. This means that it is possible to end up attempting
to create multiple reactions with the same [ Type, IssueID, CommentID, UserID,
OriginalAuthorID ] thus breaking the constraints.

On SQLite this appears to cause a deadlock but on other dbs this will
cause the migration to fail.

This PR extends the constraint to include the original author username
in the constraint.

Fix #13271

Signed-off-by: Andrew Thornton <art27@cantab.net>
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zeripath 2020-11-10 22:37:11 +00:00 • committed by GitHub
parent 3400928f7a
commit 3fd060eb37
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3 changed files with 47 additions and 7 deletions
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2
models/migrations/migrations.go
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@ -252,6 +252,8 @@ var migrations = []Migration{
NewMigration("ensure repo topics are up-to-date", fixRepoTopics),
// v158 -> v159
NewMigration("code comment replies should have the commitID of the review they are replying to", updateCodeCommentReplies),
// v159 -> v160
NewMigration("update reactions constraint", updateReactionConstraint),
}
// GetCurrentDBVersion returns the current db version