class.ilLuceneQueryInputGUI.php

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<?php

declare(strict_types=1);
/*
    +-----------------------------------------------------------------------------+
    | ILIAS open source                                                           |
    +-----------------------------------------------------------------------------+
    | Copyright (c) 1998-2006 ILIAS open source, University of Cologne            |
    |                                                                             |
    | This program is free software; you can redistribute it and/or               |
    | modify it under the terms of the GNU General Public License                 |
    | as published by the Free Software Foundation; either version 2              |
    | of the License, or (at your option) any later version.                      |
    |                                                                             |
    | This program is distributed in the hope that it will be useful,             |
    | but WITHOUT ANY WARRANTY; without even the implied warranty of              |
    | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the               |
    | GNU General Public License for more details.                                |
    |                                                                             |
    | You should have received a copy of the GNU General Public License           |
    | along with this program; if not, write to the Free Software                 |
    | Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA. |
    +-----------------------------------------------------------------------------+
*/

class ilLuceneQueryInputGUI extends ilTextInputGUI
{
    public function checkInput(): bool
    {
        $ok = parent::checkInput();

        $query = '';
        if ($this->http->wrapper()->post()->has($this->getPostVar())) {
            $query = $this->http->wrapper()->post()->retrieve(
                $this->getPostVar(),
                $this->refinery->kindlyTo()->string()
            );
        }
        if (!$ok or !strlen($query)) {
            return false;
        }
        try {
            ilLuceneQueryParser::validateQuery($query);
            return true;
        } catch (ilLuceneQueryParserException $e) {
            $this->setAlert($this->lng->txt($e->getMessage()));
            return false;
        }
    }
}