change_publishing_app_for_email_campaing_content.rb

DraftContentItem.where(publishing_app: "email-campaign-frontend").each do |content_item|
  content_item.update_attributes!(publishing_app: "share-sale-publisher")

  payload = Presenters::ContentStorePresenter.present(content_item)
  ContentStoreWorker.perform_async(
    content_store: Adapters::DraftContentStore,
    base_path: content_item.base_path,
    payload: payload,
  )
end

LiveContentItem.where(publishing_app: "email-campaign-frontend").each do |content_item|
  content_item.update_attributes!(publishing_app: "share-sale-publisher")

  payload = Presenters::ContentStorePresenter.present(content_item)
  ContentStoreWorker.perform_async(
    content_store: Adapters::ContentStore,
    base_path: content_item.base_path,
    payload: payload,
  )
end