Dropdown::addNewCondition PHP Method

    static function addNewCondition($condition)
    {
        $condition = Toolbox::cleanNewLines($condition);
        $sha1 = sha1($condition);
        $_SESSION['glpicondition'][$sha1] = $condition;
        return $sha1;
    }

    }
    $rand = mt_rand();
    $field_id = Html::cleanId("dropdown_" . $_POST["name"] . $rand);
    $p = array('value' => 0, 'valuename' => Dropdown::EMPTY_VALUE, 'itemtype' => $_POST["idtable"], 'display_emptychoice' => true, 'displaywith' => array('otherserial', 'serial'));
    if (isset($_POST['value'])) {
        $p['value'] = $_POST['value'];
    }
    if (isset($_POST['entity_restrict'])) {
        $p['entity_restrict'] = $_POST['entity_restrict'];
    }
    if (isset($_POST['condition'])) {
        $p['condition'] = $_POST['condition'];
    }
    if ($_POST['idtable'] == 'Group') {
        $groups = Group_User::getUserGroups(Session::getLoginUserID());
        $user_groups = array();
        foreach ($groups as $group) {
            $user_groups[] = $group['id'];
        }
        $p['condition'] = Dropdown::addNewCondition("`id` IN ('" . implode("','", $user_groups) . "')");
    }
    echo Html::jsAjaxDropdown($_POST["name"], $field_id, $CFG_GLPI['root_doc'] . "/ajax/" . $link, $p);
    if (!empty($_POST['showItemSpecificity'])) {
        $params = array('items_id' => '__VALUE__', 'itemtype' => $_POST["idtable"]);
        if (isset($_POST['entity_restrict'])) {
            $params['entity_restrict'] = $_POST['entity_restrict'];
        }
        Ajax::updateItemOnSelectEvent($field_id, "showItemSpecificity_" . $_POST["name"] . "{$rand}", $_POST['showItemSpecificity'], $params);
        echo "<br><span id='showItemSpecificity_" . $_POST["name"] . "{$rand}'>&nbsp;</span>\n";
    }
}