static function establish_connection($options)
{
if ($options['adapter']) {
$options['adapter'] = strtolower($options['adapter']);
$adapter_file_name = ACTIVE_RECORD_BASE_PATH . "/connection_adapters/adapters/{$options['adapter']}_adapter.php";
if (file_exists($adapter_file_name)) {
require_once $adapter_file_name;
} else {
throw new Exception("Couldn't find an appropiate adapter for the database connection.");
}
// Look for a class named <Adapter>Adapter (i.e. MysqliAdapter)
$adapter_class_name = ucfirst($options['adapter']) . 'Adapter';
if (!class_exists($adapter_class_name)) {
throw new Exception("Expected {$adapter_file_name} to define class {$adapter_class_name}.");
}
if (self::$connection = new $adapter_class_name($options)) {
return true;
}
}
}
