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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle 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 3 of the License, or
// (at your option) any later version.
//
// Moodle 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 Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Special flatfile settings.
*
* @package enrol_flatfile
* @copyright 2013 Petr Skoda {@link http://skodak.org}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
require_once("$CFG->libdir/adminlib.php");
/**
* Setting class that stores only non-empty values.
*/
class enrol_flatfile_role_setting extends admin_setting_configtext {
public function __construct($role) {
parent::__construct('enrol_flatfile/map_'.$role->id, $role->localname, '', $role->shortname);
}
public function config_read($name) {
$value = parent::config_read($name);
if (is_null($value)) {
// In other settings NULL means we have to ask user for new value,
// here we just ignore missing role mappings.
$value = '';
}
return $value;
}
public function config_write($name, $value) {
if ($value === '') {
// We do not want empty values in config table,
// delete it instead.
$value = null;
}
return parent::config_write($name, $value);
}
}