最佳实践:多个类别-它的最佳插件(作为可标记的,作为树…)

听起来几乎和什么一模一样 "acts-as-taggable-on" 提供。

从自述文件:

class User < ActiveRecord::Base
  acts_as_taggable_on :tags, :skills, :interests
end

@user = User.new(:name => "Bobby")
@user.tag_list = "awesome, slick, hefty"      # this should be familiar
@user.skill_list = "joking, clowning, boxing" # but you can do it for any context!
@user.skill_list # => ["joking","clowning","boxing"] as TagList
@user.save

@user.tags # => [<Tag name:"awesome">,%lt;Tag name:"slick">,<Tag name:"hefty">]
@user.skills # => [<Tag name:"joking">,<Tag name:"clowning">,<Tag name:"boxing">]

# example finds:
User.tagged_with("awesome", :on => :tags) # => [@user]
User.tagged_with("awesome", :on => :skills) # => []

值得注意的是,您可以使用下面的方法获得tag.rb。

<% ActsAsTaggableOn::Tag.example_method_on_class %>