title: Checking if ActiveRecord find returns a result
body: <p>I'm trying to check if a find method returns a result. My find method is the following:</p>
  
  <pre><code>post = Post.find(:all, :conditions =&gt; { :url =&gt; params['url'] }, :limit =&gt; 1)
  </code></pre>
  
  <p>What would be a good way to check that <code>post</code> contains a result?</p>