title: Rails partial rendering
body: <p>What is the best way to render partial depending on current controller?<br>
  For example we have got this partial:<br>
  <code>&lt;h2&gt;Funny &lt;em&gt;title&lt;/em&gt;&lt;/h2&gt;</code> 
  And depending on controller i'd like to change <code>&lt;em&gt;</code> into <code>&lt;strong&gt;</code><br>
  We can do this by passing locals to partial and use conditional:<br>
  <code>&lt;% if :controller == "something" tag="em" elsif :controller == "other" tag="strong" %&gt;<br>
  &lt;h2&gt;Funny &lt;&lt;%= tag %&gt;&gt;title&lt;/&lt;%= tag %&gt;&gt;&lt;/h2&gt;</code><br>
  But what if there are n controllers? That number of conditions in view doesn't look good.</p>