title: Using the textarea helper in Rails forms
body: <p>Why does this code show an error in text area?</p>
  
  <pre><code>&lt;%= form_for(:ad, :url =&gt; {:action =&gt; 'create'}) do |f| %&gt;
    &lt;%= f.text_field(:name) %&gt;
    &lt;%= f.text_area_tag(:text, "", :size =&gt; "50x10") %&gt;
    &lt;%= submit_tag("Submit") %&gt;
  &lt;% end %&gt;
  </code></pre>