Rails 3, what's the best act as tree behavior?

问题

So I'm looking for a gem that will bring some tree behavior to the pages model.

From what I can see there are quite a few, I was wondering what other people thought.

If there any great ones or and dodgy ones to avoid.

Cheers.

回答1:

Take a look at Ancestry, it's remarkably efficient.

回答2:

I recommend Closure Tree. His author introduces good resources and reasons for it here.

回答3:

check out here

https://www.ruby-toolbox.com/categories/Active_Record_Nesting

I prefer awesome_nested_set

回答4:

Seems like the most popular is AwesomeNestedSet https://github.com/collectiveidea/awesome_nested_set

It has categories ordering system, what is missing in others and all standart functions. Setup is pretty well docummented

回答5:

I have implemented acts_as_tree successfully for some threaded comments, but am not impressed by its performance-handling. It was very simple to implement, though.

By default, it now queries the database once for every node in the tree. I suspect with some clever settings and some optimisation this can be solved though, but, out of the box: not too impressed.

来源：https://stackoverflow.com/questions/5474402/rails-3-whats-the-best-act-as-tree-behavior