function release_get_by_id($id_rel)
{
    $result = sql_do('SELECT id_rel,name_rel,date_rel,status,nb_projs,changes,download,valid_rel,id_branch,id_lic FROM ' . DB_PREF . '_releases WHERE id_rel=\'' . int($id_rel) . '\'');
    if ($result->numRows() != 1) {
        return 0;
    }
    $row = $result->fetchRow();
    $rel = new Release();
    $rel->set_id_rel($row[0]);
    $rel->set_name_rel($row[1]);
    $rel->set_date_rel($row[2]);
    $rel->set_status($row[3]);
    $rel->set_nb_projs($row[4]);
    $rel->set_changes($row[5]);
    $rel->set_download($row[6]);
    $rel->set_valid_rel($row[7]);
    $rel->set_id_branch($row[8]);
    $rel->set_id_lic($row[9]);
    return $rel;
}