public function addExtra()
{
$extra_id = JFactory::getApplication()->input->get('extra_id', 0, 'int');
$membership_id = JFactory::getApplication()->input->get('cid', 0, 'int');
$my_membership_model = JModelLegacy::getInstance('MyMembership', 'RSMembershipModel');
$add_extra_model = JModelLegacy::getInstance('AddExtra', 'RSMembershipModel');
$bought_extras = $my_membership_model->getBoughtExtras();
$current_extra = $add_extra_model->getExtra();
// check if extra is already purchased
if (empty($current_extra) || $current_extra->type != 'checkbox' && isset($bought_extras[$current_extra->extra_id])) {
JError::raiseWarning(500, JText::_('COM_RSMEMBERSHIP_ALREADY_BOUGHT_EXTRA'));
$this->setRedirect(JRoute::_(RSMembershipRoute::MyMembership($membership_id), false));
}
JFactory::getApplication()->input->set('view', 'addextra');
JFactory::getApplication()->input->set('layout', 'default');
parent::display();
}
