class MigrateCourseAtta < ActiveRecord::Migration[5.2]
  def change
    add_column :attachments, :delay_publish, :boolean, default: 0

    Attachment.where(container_type: "Course").where(is_publish: 0).where("publish_time > '#{(Time.now).strftime("%Y-%m-%d %H:%M:%S")}'").update_all(delay_publish: 1)
  end
end