71 lines
1.7 KiB
Ruby
71 lines
1.7 KiB
Ruby
# 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
|
|
transition = user.block_transition
|
|
|
|
user.transaction do
|
|
# 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
|
|
|
|
# Reverse the user block if record migration fails
|
|
if !migrate_records && transition
|
|
transition.rollback
|
|
user.save!
|
|
end
|
|
end
|
|
|
|
user.reload
|
|
end
|
|
|
|
private
|
|
|
|
def migrate_records
|
|
user.transaction(requires_new: true) do
|
|
@ghost_user = User.ghost
|
|
|
|
migrate_issues
|
|
migrate_merge_requests
|
|
migrate_notes
|
|
migrate_abuse_reports
|
|
migrate_award_emojis
|
|
end
|
|
end
|
|
|
|
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_emojis
|
|
user.award_emoji.update_all(user_id: ghost_user.id)
|
|
end
|
|
end
|
|
end
|