class ReeDao::Agg

def call(dao, ids_or_scope, **opts, &block)
  scope = if ids_or_scope.is_a?(Array) && ids_or_scope.any? { _1.is_a?(Integer) }
    return [] if ids_or_scope.empty?
    dao.where(id: ids_or_scope)
  elsif ids_or_scope.is_a?(Integer)
    dao.where(id: ids_or_scope)
  else
    ids_or_scope
  end
  list = scope.is_a?(Sequel::Dataset) ? scope.all : scope
  if opts[:to_dto]
    list = list.map do |item|
      list = opts[:to_dto].call(item)
    end
  end
  load_associations(dao.unfiltered, list, **opts, &block) if block_given?
  if ids_or_scope.is_a?(Array)
    list.sort_by { ids_or_scope.index(_1.id) }
  else
    list
  end
end