ruby own blocks

block_and_yield.rb

  def cached_entity(key, &block)
    cache = Rails.cache
    time_lap = 11.seconds # cache expires each time_lap
    cache.fetch(key, expires_in: time_lap) do
      yield
    end
  end

  def cached_nomenclature_ids()
    cached_entity('nomenclature_ids') do
      Nomenclature.all.pluck(:id, :parent_id, 'deleted IS NULL')
    end
  end