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# frozen_string_literal: true
module Gitlab
module BackgroundMigration
# This migration updates discussion ids for epics that were promoted from issue so that the discussion id on epics
# is different from discussion id on issue, which was causing problems when replying to epic discussions as it would
# identify the discussion as related to an issue and complaint about missing project_id
class FixPromotedEpicsDiscussionIds
# notes model to iterate through the notes to be updated
class Note < ActiveRecord::Base
self.table_name = 'notes'
self.inheritance_column = :_type_disabled
end
def perform(discussion_ids)
Note.where(noteable_type: 'Epic')
.where(discussion_id: discussion_ids)
.update_all("discussion_id=MD5(discussion_id)||substring(discussion_id from 1 for 8)")
end
end
end
end
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