如何在 cookie rails 4 上存储数组? [英] How to store array on a cookie rails 4?

问题描述

我正在尝试在 rails 上存储一个数组，但在解码时出现错误.我使用 cookies[:test] = Array.new当我试图解码时@test = ActiveSupport::JSON.decode(cookies[:test])我收到一个错误.实现我想要实现的目标的正确方法是什么?

I am trying to store an array on rails an getting error on the decoding. I use cookies[:test] = Array.new And when I am trying to decode @test = ActiveSupport::JSON.decode(cookies[:test]) I am getting an error. Whats the proper way to achieve what I am trying to ?

推荐答案

使用 session，而不是 cookies.您不必解码它，rails 会为您处理.以与您相同的方式创建会话:

Use session, not cookies. You don't have to decode it, rails handles that for you. Create the session the same way you already are:

session[:test] = Array.new

当你需要它时，像往常一样访问它

and when you need it, access it like normal

session[:test]
# => []

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