diff options
Diffstat (limited to 'app/services/users/migrate_to_ghost_user_service.rb')
-rw-r--r-- | app/services/users/migrate_to_ghost_user_service.rb | 59 |
1 files changed, 59 insertions, 0 deletions
diff --git a/app/services/users/migrate_to_ghost_user_service.rb b/app/services/users/migrate_to_ghost_user_service.rb new file mode 100644 index 00000000000..1e1ed1791ec --- /dev/null +++ b/app/services/users/migrate_to_ghost_user_service.rb @@ -0,0 +1,59 @@ +# When a user is destroyed, some of their associated records are +# moved to a "Ghost User", to prevent these associated records from +# being destroyed. +# +# For example, all the issues/MRs a user has created are _not_ destroyed +# when the user is destroyed. +module Users + class MigrateToGhostUserService + extend ActiveSupport::Concern + + attr_reader :ghost_user, :user + + def initialize(user) + @user = user + end + + def execute + # Block the user before moving records to prevent a data race. + # For example, if the user creates an issue after `migrate_issues` + # runs and before the user is destroyed, the destroy will fail with + # an exception. + user.block + + user.transaction do + @ghost_user = User.ghost + + migrate_issues + migrate_merge_requests + migrate_notes + migrate_abuse_reports + migrate_award_emoji + end + + user.reload + end + + private + + def migrate_issues + user.issues.update_all(author_id: ghost_user.id) + end + + def migrate_merge_requests + user.merge_requests.update_all(author_id: ghost_user.id) + end + + def migrate_notes + user.notes.update_all(author_id: ghost_user.id) + end + + def migrate_abuse_reports + user.reported_abuse_reports.update_all(reporter_id: ghost_user.id) + end + + def migrate_award_emoji + user.award_emoji.update_all(user_id: ghost_user.id) + end + end +end |