如何在Ruby on Rails 3.2.8中保存LocalStorage上的数据？

Question

I'm trying to save a variable called persistent_data .

I usually use session[:persistent_data] or cookies[:persistent_data] , but I would like to use the localstorage instead.

How do I do that on Rails?

Answer 1

Localstorage has nothing to do with rails. You do it the same way as with any other language:

<script>
localStorage.setItem("company_id", "1");
</script>

localStorage.getItem("company_id");
=> 1

You can use rails to dynamically set the item however:

<script>
localStorage.setItem("company_id", "<%= @company.id %>");
</script>

Answer 2

As far as I know localStorage has nothing to do with Rails, it is pure Javascript/HTML5 feature.

You can use the following in you application js in order to read or write data from the local storage:

var foo = localStorage.getItem("bar");
localStorage.setItem("bar", foo);

Answer 3

正如其他人已经说过本地存储是Javascript / Html功能/解决方案但是如果想要学习如何将其与rails集成Ryan Bates在http://railscasts.com/episodes/248-offline-apps-part-2上有一个railscast ，尽管您可能需要观看第1部分才能完全理解它。