title: joomla com_content override
body: <p>i need to make some changes in com_content/views/article/view.html.php</p>
  
  <p>that file it`s a class: </p>
  
  <pre><code>class ContentViewArticle extends JViewLegacy{
  
  }
  </code></pre>
  
  <p>so how can i override this class because on some categories i need to set meta description in another way that is now.</p>
  
  <p>i copied the core source file in:
  templates/my_template_name/code/com_content/views/article/view.html.php </p>
  
  <p>i made some changes but it doesn`t work.</p>
  
  <p>i think it doesn`t use the new file.
  i am using joomla 2.5.7</p>
  
  <p>thank you</p>