我有客户，作家和故事。
出版的作家是客户与作家之间通过故事被接受的故事之间的关联。我可以在writer id上做一个uniq来为客户提供已发布的编写器。
代码如下：
has_many :accepted_stories, -> { accepted }, class_name: Story
has_many :published_writers, ->{ uniq(:writer_id) }, through: :accepted_stories, source: :writer, class_name: Writer
现在我想要获得批准率高的出版作家。这意味着至少有50％的故事被该客户接受，因为客户也可以拒绝故事。
所以我想尝试写下面的内容，但我不确定如何。
has_many :accepted_or_rejected_stories, -> { rejected || accepted }, class_name: Story
has_many :published_writers_with_high_approval, ->{ where sum accepted stories are >= sum rejected stories }, through: :accepted_or_rejected_stories, source: :writer, class_name: Writer