Heroku不提供背景图像，本地主机？ [英] Heroku does not serve background image, localhost does?
问题描述
我的rails应用程序有问题（Rails 4.0.0.rc2，ruby 2.0.0p195）。
行为很奇怪：我的localhost显示背景
在heroku日志中，我可以看到以下错误：
ActionController :: RoutingError（No route matches [GET]/assets/piano.jpg）：
我通过在custom.css.scss中插入以下代码创建了背景图片：
.full {
background：image-url（piano.jpg）无重复中心中心固定;
-webkit-background-size：cover;
-moz-background-size：cover;
-o-background-size：cover;
background-size：cover;
}
我用下面的代码触发这个，页面：
< body class =full>
....
< / body>
我已经在生产中运行了gem：
group：production dopre>
gem'pg'
gem'rails_12factor'
end
在production.rb中，我将以下设置设置为true：
config.serve_static_assets = true
但是，图片未显示。
解决方案我自己找到了问题的解决方案：
RAILS_ENV = production bundle exec rake assets：precompile
在我的控制台中运行此命令后，图片显示正确。
以前，我只试图运行：
rake assets：precompile
不帮助。您必须在命令中解决生产环境。
我希望这可以作为其他用户的参考。
I have a problem with my rails application (Rails 4.0.0.rc2, ruby 2.0.0p195).
The behavior is weird: My localhost shows the background picture properly, Heroku doesn't.
In the heroku logs I can see the following error:
ActionController::RoutingError (No route matches [GET] "/assets/piano.jpg"):I have created the background image by inserting the following code in my custom.css.scss:
.full { background: image-url("piano.jpg") no-repeat center center fixed; -webkit-background-size: cover; -moz-background-size: cover; -o-background-size: cover; background-size: cover; }And I am triggering this with the following code, which I have on my static page:
<body class="full"> .... </body>I already have the gem running in production:
group :production do gem 'pg' gem 'rails_12factor' endIn production.rb I have set the following setting to true:
config.serve_static_assets = trueHowever, the image is not being shown. Can you help me out?
解决方案I have found the solution for the issue myself:
RAILS_ENV=production bundle exec rake assets:precompileAfter running this command in my console, the picture was shown properly.
Previously I had only tried to run:
rake assets:precompileThat alone didn't help. You have to address the production environment in your command.
I hope this serves as a reference for other users.
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