public static function isInstalledSource($element, $type = 'component', $folder = '')
{
if (!VMMigrateHelperDatabase::isValidConnection()) {
return false;
}
if (!VMMigrateHelperDatabase::isValidPrefix()) {
return false;
}
$source_db = VMMigrateHelperDatabase::getSourceDb();
$params = JComponentHelper::getParams('com_vmmigrate');
$params->get('joomla_version', '1.5');
$joomla_version_src = self::getJoomlaVersionSource();
//Test if the extension is installed on the source website
$query = $source_db->getQuery(true);
if (version_compare($joomla_version_src, '1.6', 'ge')) {
$query->select('extension_id')->from('#__extensions')->where("element = " . $source_db->q($element))->where("type = " . $source_db->q($type));
} else {
switch ($type) {
case 'plugin':
$query->select('id')->from('#__plugins')->where("element = " . $source_db->q($element));
if ($folder) {
$query->where("folder = " . $source_db->q($folder));
}
break;
case 'module':
$query->select('id')->from('#__modules')->where("module = " . $source_db->q($element));
break;
case 'component':
default:
$query->select('id')->from('#__components')->where($source_db->qn('option') . " = " . $source_db->q($element));
}
}
$source_db->setQuery($query);
$extension_id = $source_db->loadResult();
if ($extension_id) {
return true;
} else {
return false;
}
}
public static function isValidPrefix()
{
try {
$source_db = VMMigrateHelperDatabase::getSourceDb();
$query = $source_db->getQuery(true);
//$query->select('count(*)')->from('#__components');
$query->select('count(*)')->from('#__users');
$source_db->setQuery($query);
$found_extensions = $source_db->loadResult();
if ($found_extensions) {
return true;
} else {
return false;
}
} catch (Exception $e) {
return false;
}
}
