public static function getInstance($class, AeInterface_Database $database)
{
if (!$database->isConnected()) {
throw new AeOrmModelException('Database connection must be established first', 401);
}
if (!is_subclass_of($class, 'AeOrm_Model')) {
throw new AeOrmModelException('Class must be a subclass of AeOrm_Model', 405);
}
static $models = array();
$key = md5($database->getClass() . $class);
if (!isset($models[$key])) {
$models[$key] = new $class($database);
}
return $models[$key];
}
