Rails如何创建cookie并稍后调用数据？

Question

如何在Rails中创建cookie？

用户访问示例:

http://mywebsite.com/ref/stackowerflow

然后我想要安全 stackowerflow

并在以后的例子中调用它

<%= ref %> 输出: stackowerflow

Answer 1

创建cookie(最好在控制器中):

cookies[:referer] = "stackoverflow"

创建一小时后到期的cookie:

cookies[:referer] = { :value => "stackoverflow", :expires => Time.now + 1.hour}

阅读cookie:

ref = cookies[:referer] # "stackoverflow"

删除cookie:

cookies.delete :referer