如何更改rails中的公共资产目录?

您不需要通过环境中的config块调用它,您可以从应用程序控制器调用它,这样您就可以访问request对象。所以你可以:

class ApplicationController < ActionController::Base
  before_filter :set_asset_url

  def set_asset_url
    ActionController::Base.asset_host = "http://#{request.host}"
  end
end

感觉有点不舒服,但我知道没有更好的办法了。

ActionController::Base.asset_host = "http#{request.ssl? ? 's' : ''}://#{request.host_with_port}"

这在某种程度上取决于您的服务器环境,但基本上您需要与这里描述的内容类似的内容: http://blog.codahale.com/2006/06/19/time-for-a-grown-up-server-rails-mongrel-apache-capistrano-and-you/

笔记:

• thin 与…一起跑 --prefix '/railsapp' 在端口9999上。
• 这适用于windows和linux。W00T!
• 我必须使用 LA-U (向前看)获取apache将使用的最终文件名。
• 这个 IS_SUBREQ
• 这个 /railsapp/index.html 重写是必需的,否则我的apacheconf中的另一个规则会将其重写为 /index.html ,这是默认的“here's what's here”页面; 404 不过,其他地方也有卖。

以下是apache配置的相关部分:

# Only proxy the thin stuff.
<Proxy /railsapp/*>
    Order deny,allow
    Allow from all
</Proxy>

## Add an alias for filename mapping.
Alias /railsapp "/website/root/railsapp/public"

## We need the Rewrite Engine for this.
RewriteEngine on
<IfDefine debug>
    ## If debugging, turn on logging.
    RewriteLogLevel 9
    RewriteLog "/website/logs/http.rewrite.log"
</IfDefine>

## Check for a static root page.
RewriteRule ^/railsapp/?$ /railsapp/index.html [QSA]

## Check for Rails caching.
RewriteRule ^(/railsapp/[^.]+)$ $1.html [QSA]

## Redirect all non-static requests to Rails.
# Don't proxy on sub-requests (needed to make the LA-U work).
RewriteCond %{IS_SUBREQ} false
# Use look-ahead to see if the filename exists after all the rewrites.
RewriteCond %{LA-U:REQUEST_FILENAME} !-f
# Proxy it to Rails.
RewriteRule ^/railsapp(.*)$  http://127.0.0.1:9999%{REQUEST_URI} [P,QSA,L]

## Make sure Rails requests are reversed correctly.
ProxyPassReverse /railsapp http://127.0.0.1:9999/railsapp

## Disable keepalive; railsappd doesn't support them.
SetEnv proxy-nokeepalive 1