php records are not saved

I have to save what I write in an input text in a table in a database, I do not save anything, I do not know what problem I have, I'm new to this. they are made in a stored procedure and I only execute it with a query.

<?php
include_once '../config-php/sapp_configuration.php';
/*
 * La constante DIR_CLASS, DIR_QUERY, DIR_INCLUDE_HEAD_PHP esta declarada
 * en el archivo define_configuration.php
 */

include_once DIR_QUERY . '/query_jose.php';
/*
 * Inclusion de sentencias que se deben de realizar antes de
 * acceder al servicio
 */
include_once (DIR_INCLUDE_HEAD_PHP . '/head_before_service.php');

if (isset($_POST['request']) && $_POST['request'] != "") {

    switch ($_POST['request']) {

        case 'insertarOperacion':

            /**
             * Reiniciar la variable de sesion
             */
            pResetContRefresh();
            if (isset($_POST['form']['da_descripcion']) or ( $_POST['form']['da_descripcion']) == '') {

                $server = getResponseObjJs('mess-resp-jose-0', [
                    'messageType' => 'warning',
                    'message' => 'No se han enviado parametros de descripcion'
                ]);
                echo json_encode($server->getServerData());
                return;
            }

            try {

                $ds = f_query_jose_001($_POST['da_descripcion']);

//                print_r($ds);

                $server = getResponseObjJs('mess-resp-jose-0', [
                    'objDB' => $ds
                ]);
                echo json_encode($server->getServerData());
                return;
            } catch (Exception $exc) {
                $server = getResponseObjJs('mess-resp-08-2', [
                    'errorCode' => 'try-catch-00001',
                    'tryCatchExceptionString' => $exc->getTraceAsString()
                ]);
                echo json_encode($server->getServerData());
                return;
            }

            break;

        default :

            $server = getResponseObjJs('mess-resp-04-3', [
                'errorCode' => 'default-petition-000008'
            ]);
            echo json_encode($server->getServerData());

            break;
    }
} else {

    $server = getResponseObjJs('mess-resp-04-5', [
        'errorCode' => 'variable-petition-000032'
    ]);
    echo json_encode($server->getServerData());
}

function f_query_jose_001($descripcion) {

    $db = DB;
    $sql = "
        exec sp_insertar_operacion '$descripcion'
        ";
    $ds = new DataStore($db, $sql);
    return $ds;
}
?>