Have you felt the pain of using Active Record on a large codebase? How about messy controllers? Read this short guide on how to improve a Rails application's structure by exploding its responsibilities into small classes with their own unique responsibilities. Starring rom-rb and dry-rb.
不写中文简介的原因是此书就是英文书，如果这段简介看不懂，那也没必要花钱买书入坑。变相的帮大家过滤掉无效信息。