title: ActiveRecord find and only return selected columns
body: <h3>edit 2</h3>
  <p>If you stumble across this, check both answers as I'd now use pluck for this</p>
  <hr />
  <p>I have a fairly large custom dataset that I'd like to return to be echoe'd out as json. One part is:</p>
  <pre><code>l=Location.find(row.id)
  tmp[row.id]=l
  </code></pre>
  <p>but I'd like to do something like:</p>
  <pre><code>l=Location.find(row.id).select(&quot;name, website, city&quot;)
  tmp[row.id]=l
  </code></pre>
  <p>but this doesn't seem to be working. How would I get this to work?</p>
  <p>thx</p>
  <p><strong>edit 1</strong><br />
  alternatively, is there a way that I can pass an array of only the attributes I want included?</p>