从视图中设置一个cookie，然后从Rails中的Controller中读取它 [英] Set a cookie from view, then read it from Controller in Rails

问题描述

我想使用Javascript在Rails视图中设置cookie值，然后使用Controller读取此cookie。 Rails是否有可能，我应该如何处理？

I would like to set cookie value from within Rails view using Javascript, then use Controller to read this cookie. Is this possible with Rails, and how should I go about it?

我的情况：我有一个输入字段（例如地址），用户在输入s时需要填写/他首先来到我的网站。然后，用户使用Omniauth登录。我想一直保持住地址直到他登录。

My situation: I have an input field (say, address) that user needs to fill out when s/he first comes to my site. The user then logs in using Omniauth. I would like to persist address until after he logs in.

更新：
我能够在客户端上添加到document.cookies。但是，cookies [ something]从Rails结束返回nil。以下是Cookie哈希：

Update: I was able to add to document.cookies on client. However, cookies["something"] returns nil from Rails end. Below is the cookie hash:

＃< ActionDispatch :: Cookies :: CookieJar：0x007 @ secret = f4d518c0b2，@ set_cookies = { }，@ delete_cookies = {}，@ host = localhost，@ secure = false，@ closed = false，@ cookies = { _ myapp_session => BAh7Ck ==-776b2fcfcd63d3c84d2b1de5327e277499add6d4， fbsr_150gt; 885> mqZeyvoRC}，@ signed =＃< ActionDispatch :: Cookies :: SignedCookieJar：0x007 @parent_jar =＃< ActionDispatch :: Cookies :: CookieJar：0x007fdf ...> ;, @verifier =＃< ActiveSupport :: MessageVerifier：0x007fdfa34548d8 @ secret = f4d518c0b2e9d8，@ digest = SHA1，@ serializer = Marshal>>><

推荐答案

要在javascript中设置cookie，您可以执行以下操作：

To set a cookie in javascript you can do:

document.cookie = something = test;

因此您可以添加一个事件（单击，提交，..）以从输入中获取值并按照我提到的方式创建cookie

So you can add an event (click, submit, ..) to get the value from the input and create a cookie the way i mentioned above.

在rails中，您可以读取以下值：

In rails you can read the value like this:

cookies [ 某物]

如果需要，您还可以在JavaScript中指定cookie何时过期。

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