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每天一剂Rails良药之Cheap and Easy Theme Support

    博客分类：
  • Ruby
RailsCSS 
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你可能需要给你的站点用户添加一个主题样式支持。
让我们看看用Rails实现该功能是多简单。

1，给User模型添加类型为string的style字段

2，修改app/views/layouts/application.rhtml 
<html>
    <head>
        <%= stylesheet_link_tag(session[:user].style || "default") %>
    </head>
    <body>
        <div id='main'>
            <div id='header'>
                <h1>Welcome, <%= session[:user].name %>!</h1>
            </div>
            <div id='content'>
                <%= yield %>
            </div>
        </div>
    </body>
</html>

这样没有配置主题样式的用户将默认使用default.css，而User.style为"hideous"的用户将使用public/stylesheets/hideous.css
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