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PORails 3 - yield return or callback won't call in view <%= yield(:sidebar) || render('shared/sidebar') %>
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  1. PORails 3 - yield return or callback won't call in view <%= yield(:sidebar) || render('shared/sidebar') %>
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    copied!<p>I'm migrating a Website from Rails 2 (latest) to Rails 3 (beta2).<br> Testing with <em><strong>Ruby 1.9.1p378</strong></em> and <em><strong>Ruby 1.9.2dev</strong> (2010-04-05 trunk 27225)</em></p> <p>Stuck in a situation, i don't know which part will work well. Suspect <code>yield</code> is the problem, but don't know exactly.</p> <p>In my Layout Files I use the following technique quite often:</p> <p><em><code>app/views/layouts/application.html.erb</code></em>:</p> <pre><code>&lt;%= yield(:sidebar) || render('shared/sidebar') %&gt; </code></pre> <hr> <p>For Example the partial look like:</p> <p><em><code>app/views/shared/_sidebar.html.erb</code></em>:</p> <pre><code>&lt;p&gt;Default sidebar Content. Bla Bla&lt;/p&gt; </code></pre> <hr> <p>Now it is time for the key part!<br> In any view, I want to create a <code>content_for</code> block (optional). This can contain a pice of HTML etc. example below. If this block is set, the pice HTML inside should render in <code>application.html.erb</code>.<br> If not, Rails should render the Partial at <code>shared/_sidebar.html.erb</code> on the right hand side.</p> <p><em><code>app/views/books/index.html.erb</code></em>:</p> <pre><code>&lt;% content_for :sidebar do %&gt; &lt;strong&gt;You have to read REWORK, a book from 37signals!&lt;/strong&gt; &lt;% end %&gt; </code></pre> <hr> <p>So you've got the idea. Hopefully. This technique worked well in any Rails 2.x Application.<br> Now, in <strong>Rails 3</strong> <em>(beta2)</em> only the <code>yield</code> Part is working.</p> <pre><code>|| render('shared/sidebar') </code></pre> <p>The <code>or</code> side will not process by rails or maybe ruby.</p> <p>Thanks for input and time!</p>
 

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