5wilon

753 经验值

  1. One To One

  2. One To Many

  3. Many To Many

  4. Has Many Through

  5. Polymorphic Relations

  6. Many To Many Polymorphic Relations

特别是最后几种关系总是理解的不够透彻,希望jellyBool能出相关的视频,让大家玩6.