Rails .js.erb文件中的完整资产URL [英] Full Asset URL in a Rails .js.erb file

问题描述

我有一个可以在任何网站上加载的小书签.

I have a bookmarklet that can be loaded on any website.

它是这样的

• 加载http://my.example.com/assets/bookmarklet.js
• 包括http://my.example.com/assets/bookmarklet.css

• loads http://my.example.com/assets/bookmarklet.js
• includes http://my.example.com/assets/bookmarklet.css

css文件是通过bookmarklet.js添加到dom的，因此它需要知道它在哪里.

The css file is added to the dom via bookmarklet.js, so it needs to know where this is.

我的代码如下；

// assets/javascripts/bookmarklet.js.erb

var config = {
  stylesheetUrl: '<%= asset_path("bookmarklet.css", :only_path => false) %>'
}

但是不管我怎么尝试，渲染为

But no matter what I try this renders as

var config = {
  stylesheetUrl: '/assets/bookmarklet.css'
}

我需要asset_path返回完整的URL. 但是asset_url不存在，并且我找不到asset_path的选项来代替当前域.

I need the asset_path to return a full url. But asset_url doesn't exist, and I can't find an option to asset_path that will prepend the current domain.

有解决方案吗?

推荐答案

您需要为每个环境设置一个明确的资产宿主.例如:

You need to set an explicit asset host for each environment. For example:

# development.rb
config.action_controller.asset_host = "http://localhost:3000"

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