db/migrate/20170209184350_add_reply_to_statuses.rb


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class AddReplyToStatuses < ActiveRecord::Migration[5.0]
  def up
    add_column :statuses, :reply, :boolean, nil: false, default: false
    Status.update_all('reply = (in_reply_to_id IS NOT NULL)')
  end

  def down
    remove_column :statuses, :reply
  end
end