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fix(migration): handle deleted courses & users

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This commit is contained in:
Gregor Kleen 2020-05-06 12:52:53 +02:00
parent e632ac06a3
commit 35621df03e
1 changed files with 2 additions and 1 deletions
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3
src/Model/Migration.hs
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@ -653,7 +653,8 @@ customMigrations = Map.fromListWith (>>)
let toAllocated :: [[PersistValue]] -> Maybe AllocationId
toAllocated = either (const Nothing) Just . fromPersistValue <=< listToMaybe <=< listToMaybe
allocated <- toAllocated <$> sourceToList [queryQQ|SELECT "allocation_course".allocation FROM "allocation_deregister" INNER JOIN "allocation_course" ON "allocation_course".course = "allocation_deregister".course WHERE "user" = #{transactionUser} AND "allocation_course"."course" = #{transactionCourse} LIMIT 1;|]
[executeQQ|INSERT INTO "course_participant" ("course", "user", "registration", "state", "allocated") VALUES (#{transactionCourse}, #{transactionUser}, #{time}, #{CourseParticipantInactive False}, #{allocated}) ON CONFLICT DO NOTHING;|]
whenM (existsKey transactionCourse `and2M` existsKey transactionUser)
[executeQQ|INSERT INTO "course_participant" ("course", "user", "registration", "state", "allocated") VALUES (#{transactionCourse}, #{transactionUser}, #{time}, #{CourseParticipantInactive False}, #{allocated}) ON CONFLICT DO NOTHING;|]
ensureParticipant _ = return ()
runConduit $ getAuditLog .| C.mapM_ ensureParticipant
)