在Rails中实现具有灵活深度的类别和子类别的最佳方法？

I have a Category and Subcategory models in my project. I would like to have many sub-levels in a flexible way. I thought making a self referential "parent" foreign key but I'm not quite sure how to do it. Any ideas? Thanks!

我的项目中有一个Category和Subcategory模型。我想以灵活的方式拥有许多子级别。我认为制作一个自我引用的“父母”外键,但我不太清楚该怎么做。有任何想法吗?谢谢!

Cat1
    Sub1
        SubSub1
        SubSub2
    Sub2
Cat2
    Sub1
Cat3
    Sub1
    Sub2
        SubSub1

2 个解决方案

#1

Try the acts_as_tree plug-in

试试acts_as_tree插件

#2

Awesome_nested_set is the best solution, imo, for these types of structures in rails. http://github.com/collectiveidea/awesome_nested_set

对于轨道中的这些类型的结构,Awesome_nested_set是最好的解决方案imo。 http://github.com/collectiveidea/awesome_nested_set

#1