rails store

Store

Store又在包裹了上一节的序列化功能,是个简单又实用的功能,让你可以将某个栏位指定储存为Hash值。举例来说,上一节的settings也可以改用store来设定:

class User < ActiveRecord::Base
  store :settings, accessors => [:sex, :url]
end

特别的是其中accessors用来设定可以直接存取的属性,这样就可以像平常一样那样操作sexurl这两个属性,让我们进console实验看看:

> user = User.new(:sex => "male", :url => "http://example.com")
> user.sex
 => "male"
> user.url
 => "http://example.com"
> user.settings
 => {:sex => "male", :url => "http://example.com"}

因为store就像使用hash一样,你也可以直接操作它,加入新的资料:

> user.settings[:food] = "pizza"
> user.settings
 => {:sex => "male", :url => "http://example.com", :food => "pizza"}

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