});
// Service for update the values of an assistance list.
$app->put('/assistanceList', function () use($app) {
    try {
        // Verify that the user is logged.
        if (ApiUtils::isLogged()) {
            // Get input.
            $request = $app->request();
            $input = json_decode($request->getBody());
            $rows = is_object($input) ? get_object_vars($input) : $input;
            // Update all rows.
            for ($i = 0; $i < count($rows); $i++) {
                $entry = Assistance::find($rows[$i]->id);
                $attributes = is_object($rows[$i]) ? get_object_vars($rows[$i]) : $rows[$i];
                $creation = is_object($rows[$i]->creation) ? get_object_vars($rows[$i]->creation) : $rows[$i]->creation;
                $attributes['creation'] = $creation['date'];
                if ($entry != null) {
                    $entry->update_attributes($attributes);
                }
            }
            // Return result.
            echo json_encode(array("error" => null));
        } else {
            // Return error message.
            ApiUtils::returnError($app, 'UserNotAdmin');
        }
    } catch (Exception $e) {
        // An exception ocurred. Return an error message.
        ApiUtils::handleException($app, $e);
    }
});