有没有办法让这个范围成批return结果

Is there a way to get this scope to return results in batches

我有这个范围。我想将其设置为 return 批 25。

scope :get_some_stuff, lambda {
                                select(QUERY_SELECT).
                                joins(QUERY_JOINS).
                                group(QUERY_GROUP_BY)
                          }

http://guides.rubyonrails.org/active_record_querying.html#retrieving-multiple-objects-in-batches

直接来自文档;未经测试,但我不明白为什么这行不通。

YourUnidentifiedModel.get_some_stuff.find_in_batches(batch_size: 25) do |batch|
  # Work with your batch
end