/**
* Populates the `ExtensionManager::$_extensions` array with all the
* extensions stored in `tbl_extensions`. If `ExtensionManager::$_extensions`
* isn't empty, passing true as a parameter will force the array to update
*
* @param boolean $update
* Updates the `ExtensionManager::$_extensions` array even if it was
* populated, defaults to false.
*/
private static function __buildExtensionList($update = false)
{
if (empty(self::$_extensions) || $update) {
self::$_extensions = Symphony::Database()->fetch("SELECT * FROM `tbl_extensions`", 'name');
}
}