我需要对ActiveRelation进行哈希化处理!例如,我有下面这个AR:
arel = MyClass.page(options[:page]).per(options[:per])
有没有一种简单的方法来创建哈希表,使得其中的主键成为哈希表的键
实例1:
[#<Object id: 44, name: "name44" >, #<Object id: 2, name: "name2" >, #<Object id: 110, name: "name110">]
=>
{44=>"name44", 2=>"name2",110=>"name110"}
例2:
[#<Object id: 44, name: "name44" >, #<Object id: 2, name: "name2" >, #<Object id: 110, name: "name110">]
=>
{44=>{:id=>44, :name=>"name44", 2=>{:id=>2,:name=>"name2"},110=>{:id=>110,:name=>"name110"}}