group/group_form.php

   1 <?php
   2
   3 /**
   4  * Create//edit group form.
   5  *
   6  * @copyright &copy; 2006 The Open University
   7  * @author N.D.Freear AT open.ac.uk
   8  * @author J.White AT open.ac.uk
   9  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
  10  * @package groups
  11  */
  12
  13 defined('MOODLE_INTERNAL') || die;
  14
  15 require_once($CFG->dirroot.'/lib/formslib.php');
  16
  17 /// get url variables
  18 class group_form extends moodleform {
  19
  20     // Define the form
  21     function definition () {
  22         global $USER, $CFG, $COURSE;
  23
  24         $mform =& $this->_form;
  25         $editoroptions = $this->_customdata['editoroptions'];
  26
  27         $mform->addElement('text','name', get_string('groupname', 'group'),'maxlength="254" size="50"');
  28         $mform->addRule('name', get_string('required'), 'required', null, 'client');
  29         $mform->setType('name', PARAM_MULTILANG);
  30
  31         $mform->addElement('editor', 'description_editor', get_string('groupdescription', 'group'), null, $editoroptions);
  32         $mform->setType('description_editor', PARAM_RAW);
  33
  34         $mform->addElement('passwordunmask', 'enrolmentkey', get_string('enrolmentkey', 'group'), 'maxlength="254" size="24"', get_string('enrolmentkey', 'group'));
  35         $mform->addHelpButton('enrolmentkey', 'enrolmentkey', 'group');
  36         $mform->setType('enrolmentkey', PARAM_RAW);
  37
  38         if (!empty($CFG->gdversion)) {
  39             $options = array(get_string('no'), get_string('yes'));
  40             $mform->addElement('select', 'hidepicture', get_string('hidepicture'), $options);
  41
  42             $mform->addElement('filepicker', 'imagefile', get_string('newpicture', 'group'));
  43             $mform->addHelpButton('imagefile', 'newpicture', 'group');
  44         }
  45
  46         $mform->addElement('hidden','id');
  47         $mform->setType('id', PARAM_INT);
  48
  49         $mform->addElement('hidden','courseid');
  50         $mform->setType('courseid', PARAM_INT);
  51
  52         $this->add_action_buttons();
  53     }
  54
  55     function validation($data, $files) {
  56         global $COURSE, $DB, $CFG;
  57
  58         $errors = parent::validation($data, $files);
  59
  60         $textlib = textlib_get_instance();
  61
  62         $name = trim($data['name']);
  63         if ($data['id'] and $group = $DB->get_record('groups', array('id'=>$data['id']))) {
  64             if ($textlib->strtolower($group->name) != $textlib->strtolower($name)) {
  65                 if (groups_get_group_by_name($COURSE->id,  $name)) {
  66                     $errors['name'] = get_string('groupnameexists', 'group', $name);
  67                 }
  68             }
  69
  70             if (!empty($CFG->groupenrolmentkeypolicy) and $data['enrolmentkey'] != '' and $group->enrolmentkey !== $data['enrolmentkey']) {
  71                 // enforce password policy only if changing password
  72                 $errmsg = '';
  73                 if (!check_password_policy($data['enrolmentkey'], $errmsg)) {
  74                     $errors['enrolmentkey'] = $errmsg;
  75                 }
  76             }
  77
  78         } else if (groups_get_group_by_name($COURSE->id, $name)) {
  79             $errors['name'] = get_string('groupnameexists', 'group', $name);
  80         }
  81
  82         return $errors;
  83     }
  84
  85     function get_editor_options() {
  86         return $this->_customdata['editoroptions'];
  87     }
  88 }