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    <p>OK, so here's the solution:</p> <p>Internally, the asset pipeline (aka Sprockets) require directive calls <code>context.require_asset()</code> to actually require whatever path is specified in the directive. Turns out, that means that the <code>require_asset</code> method is present and available during ERB expansion. So, the correct solution was:</p> <pre><code>// ... Standard application.js stuff here ... //= require_tree . &lt;% Rails.plugins.each do |plugin| require_asset(plugin.to_s) end %&gt; </code></pre> <p>Added that in, and all worked as expected. Whew!</p> <p>In case you're wondering about that <code>Rails.plugins</code> bit, I added an extension to the Rails module to get the actual list of plugins that are loaded, in load order, based on config.plugins. For completeness, here it is:</p> <pre><code>module Rails def self.plugins # Get sorted list of all installed plugins all = Dir.glob(Rails.path('vendor/plugins/*/init.rb')).collect {|p| p.extract(/\/([^\/]+)\/init.rb$/) } all.sort! all.collect! {|p| p.to_sym } # Get our load order specification load_order = Rails.application.config.plugins # Split the load order out, and re-assemble replacing the :all keyword with the # set of plugins not in head or tail head, tail = load_order.split(:all) all -= head all -= tail # All set! head + all + tail end end </code></pre> <p>And the final detail was creating a <code>&lt;plugin_name&gt;.js</code> manifest file in each plugin's app/assets/javascripts directory.</p> <p>Hope that helps someone!</p>
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    1. POHow can I dynamically require assets in the Rails 3.1 asset pipeline?
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    1. USIrongaze.com
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    1. POHow can I dynamically require assets in the Rails 3.1 asset pipeline?
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    1. COBut, I have a different scenario with you. I want to require different css base on current session. But found that in application.css.erb, it has no idea what `session` is.
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      1. USRocky
    2. CO@Rocky - assets are compiled at deploy-time in production, and thus can't be modified based on session, cookies, what have you. Your best bet would be to set a class on the <body> tag based on the session (eg <body class="style-one"> or <body class="style-two">), and include both css files all the time, with each style prefixed with .style-one or .style-two to match against the body tag.
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    3. COThanks, @Irongaze.com. This make sense.
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