ruby - 拆分数组。 ruby

Question

你能帮我解决一些问题吗？我有这样的数据库数组

 str = Hiring::Tag.all
  Hiring::Tag Load (0.1ms)  SELECT `hiring_tags`.* FROM `hiring_tags`
=> [#<Hiring::Tag id: 1, name: "tag1", created_at: "2013-12-10 11:44:39", updated_at: "2013-12-10 11:44:39">,
    #<Hiring::Tag id: 2, name: "tag2", created_at: nil, updated_at: nil>,
    #<Hiring::Tag id: 3, name: "tag3", created_at: nil, updated_at: nil>,
    #<Hiring::Tag id: 4, name: "wtf", created_at: "2013-12-11 07:53:04", updated_at: "2013-12-11 07:53:04">,
    #<Hiring::Tag id: 5, name: "new_tag", created_at: "2013-12-11 10:35:48", updated_at: "2013-12-11 10:35:48">]

我需要像这样拆分这个数组:

    data:[{id:1,name:'tag1'},{id:2,name:'tag2'},
          {id:3,name:'tag3'},{id:4,name:'wtf'},{id:5,name:'new_tag'}] 

请帮帮我!

Answer 1

如果你使用 ActiveRecord 4.0

Hiring::Tag.pluck(:id, :name).map{ |id, name| {id: id, name: name} }