Joomla 3.6 Core Override

Question

I have developed a custom component for a client and they needed to be able to reuse email addresses for users. As Joomla required unique email addresses, I created a system plugin that fires on the "onAfterRoute" and loads my JTableUser class instead.

I know this isn't ideal but it was the best way to achieve the end result.

I have just installed Joomla 3.6 and it is now throwing a fatal error saying I cannot redeclare the JTableUser class when I try to use anything from the . I am guessing that the original class is now being called before the onAfterRoute trigger.

class PlgSystemMyComponentOverride extends JPlugin
{
public function __construct(&$subject, $config = array()) {
      parent::__construct($subject, $config);
  }

  public function onAfterRoute() {
      $app = JFactory::getApplication();
      $option = JRequest::getCMD('option');
      if('com_users' == JRequest::getCMD('option')) {
          require_once('path_to_my_code.php');
      }
  }
}

Is there a way to fix this in Joomla 3.6?

Thanks

Lee

Answer 1

JTableUser is very tricky. Since it is loaded at the very first time the framework is initialized, it cannot be easily overloaded by a system plugin and it cannot be evicted from memory once it is there.

To solve the case, I had to create a patch function, where the original JUser class is replaced in the core by the system plugin:

$this->patch('JTableUser', '/libraries/joomla/table/user.php');