Joomla 2.5数据库同步插件

Question

我从一周开始学习编程，似乎我坚持基础。我想为joomla编写一个插件，它将触发每个用户编辑他的个人资料中的任何数据，它将选择该数据并将其更新到第二个表（它必须同步.Joomla和VirtueMart用户数据）。当你看到我的代码时，希望你的眼睛不会流血，但正如我所说 - 我只是在学习，欢迎每一个批评和提示。

<?php
defined('JPATH_BASE') or die;
class plgUserUserDataSync extends JPlugin
{

    public function __construct(&$subject, $params )
    {
        parent::__construct( $subject, $params );
    }
    protected function _getUser($user, $options = array())
    {
        $instance = JUser::getInstance();
        if ($id = intval(JUserHelper::getUserId($user['username'])))  {
            $instance->load($id);
            return $instance;
        }
        function onUserAfterSave($user){
            $db = JFactory::getDbo();
            $query = $db ->getQuery(true);
            $data = array('c.name, c.street, c.postal_code, c.city');
            $query->select($db->quoteName($data));
            $query->from($db->quoteName('#__XXX_company as c, #__XXX_company_user_map as m'));
            $query->where($db->quoteName('m.company_short = c.short and m.user_id=' . (int) $user->id));
            $db->setQuery($query);
            $results = $db->loadObjectList();
            if ($db->getErrorNum()) {
                $this->_subject->setError($db->getErrorMsg());
                return false;
            }
            $query = $db ->getQuery(true);
            $fields = array(
            $db->quoteName('name'),
            $db->quoteName('address_1'),
            $db->quoteName('zip'),
            $db->quoteName('city')
            );
            $values = $data;
            $query->insert($db->quoteName('#__virtuemart_userinfos'))
            ->columns($db->quoteName($fields))
            ->values(implode(',', $values));
            $db->setQuery($query);
            $db->query();
        }
    }
}

编辑后：

<?php
defined('JPATH_BASE') or die;

class plgUserUserDataSync extends JPlugin
{

public function __construct(&$subject, $params )
{   
    parent::__construct( $subject, $params );
}
protected function _getUser($user, $options = array())
{
    $instance = JUser::getInstance();
    if ($id = intval(JUserHelper::getUserId($user['username'])))  {
        $instance->load($id);
        return $instance;
}
    function onUserAfterSave($user){
    $db = JFactory::getDbo();
    $query = $db ->getQuery(true);
    $data = array('c.name, c.street, c.postal_code, c.city');
    $query->select($db->quoteName($data));
    $query->from($db->quoteName('#__XXX_company as c, #__XXX_company_user_map as m'));
    $query->where($db->quoteName('m.company_short = c.short and m.user_id=' . (int) $user->id));
    $db->setQuery($query);
    $results = $db->loadObjectList();
        if ($db->getErrorNum()) {
            $this->_subject->setError($db->getErrorMsg());
            return false;
        }
    submitData();
    }

    function submitData(){
    $db = JFactory::getDbo();
    $query = $db ->getQuery(true);
    $fields = array('name, address_1, zip, city');
    $query->insert($db->quoteName('#__virtuemart_userinfos'))
          ->columns($db->quoteName($fields))
          ->values(implode(',', $results));
    $db->setQuery($query);
    $db->query();
    }
}