moodle/group/group_form.php
2012-03-03 11:46:13 +01:00

120 lines
4.2 KiB
PHP

<?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/>.
/**
* A form for the creation and editing of groups.
*
* @copyright 2006 The Open University, N.D.Freear AT open.ac.uk, J.White AT open.ac.uk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core_group
*/
defined('MOODLE_INTERNAL') || die;
require_once($CFG->dirroot.'/lib/formslib.php');
/**
* Group form class
*
* @copyright 2006 The Open University, N.D.Freear AT open.ac.uk, J.White AT open.ac.uk
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core_group
*/
class group_form extends moodleform {
/**
* Definition of the form
*/
function definition () {
global $USER, $CFG, $COURSE;
$mform =& $this->_form;
$editoroptions = $this->_customdata['editoroptions'];
$mform->addElement('text','name', get_string('groupname', 'group'),'maxlength="254" size="50"');
$mform->addRule('name', get_string('required'), 'required', null, 'client');
$mform->setType('name', PARAM_MULTILANG);
$mform->addElement('editor', 'description_editor', get_string('groupdescription', 'group'), null, $editoroptions);
$mform->setType('description_editor', PARAM_RAW);
$mform->addElement('passwordunmask', 'enrolmentkey', get_string('enrolmentkey', 'group'), 'maxlength="254" size="24"', get_string('enrolmentkey', 'group'));
$mform->addHelpButton('enrolmentkey', 'enrolmentkey', 'group');
$mform->setType('enrolmentkey', PARAM_RAW);
if (!empty($CFG->gdversion)) {
$options = array(get_string('no'), get_string('yes'));
$mform->addElement('select', 'hidepicture', get_string('hidepicture'), $options);
$mform->addElement('filepicker', 'imagefile', get_string('newpicture', 'group'));
$mform->addHelpButton('imagefile', 'newpicture', 'group');
}
$mform->addElement('hidden','id');
$mform->setType('id', PARAM_INT);
$mform->addElement('hidden','courseid');
$mform->setType('courseid', PARAM_INT);
$this->add_action_buttons();
}
/**
* Form validation
*
* @param array $data
* @param array $files
* @return array $errors An array of errors
*/
function validation($data, $files) {
global $COURSE, $DB, $CFG;
$errors = parent::validation($data, $files);
$name = trim($data['name']);
if ($data['id'] and $group = $DB->get_record('groups', array('id'=>$data['id']))) {
if (textlib::strtolower($group->name) != textlib::strtolower($name)) {
if (groups_get_group_by_name($COURSE->id, $name)) {
$errors['name'] = get_string('groupnameexists', 'group', $name);
}
}
if (!empty($CFG->groupenrolmentkeypolicy) and $data['enrolmentkey'] != '' and $group->enrolmentkey !== $data['enrolmentkey']) {
// enforce password policy only if changing password
$errmsg = '';
if (!check_password_policy($data['enrolmentkey'], $errmsg)) {
$errors['enrolmentkey'] = $errmsg;
}
}
} else if (groups_get_group_by_name($COURSE->id, $name)) {
$errors['name'] = get_string('groupnameexists', 'group', $name);
}
return $errors;
}
/**
* Get editor options for this form
*
* @return array An array of options
*/
function get_editor_options() {
return $this->_customdata['editoroptions'];
}
}