group/group.php

   1 <?php
   2 /**
   3  * Create group OR edit group settings.
   4  *
   5  * @copyright &copy; 2006 The Open University
   6  * @author N.D.Freear AT open.ac.uk
   7  * @author J.White AT open.ac.uk
   8  * @license http://www.gnu.org/copyleft/gpl.html GNU Public License
   9  * @package groups
  10  */
  11
  12 require_once('../config.php');
  13 require_once('lib.php');
  14 require_once('group_form.php');
  15
  16 /// get url variables
  17 $courseid = optional_param('courseid', 0, PARAM_INT);
  18 $id       = optional_param('id', 0, PARAM_INT);
  19 $delete   = optional_param('delete', 0, PARAM_BOOL);
  20 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  21
  22 // This script used to support group delete, but that has been moved. In case
  23 // anyone still links to it, let's redirect to the new script.
  24 if($delete) {
  25     redirect('delete.php?courseid='.$courseid.'&groups='.$id);
  26 }
  27
  28 if ($id) {
  29     if (!$group = get_record('groups', 'id', $id)) {
  30         error('Group ID was incorrect');
  31     }
  32     $group->description = clean_text($group->description);
  33     if (empty($courseid)) {
  34         $courseid = $group->courseid;
  35
  36     } else if ($courseid != $group->courseid) {
  37         error('Course ID was incorrect');
  38     }
  39
  40     if (!$course = get_record('course', 'id', $courseid)) {
  41         error('Course ID was incorrect');
  42     }
  43
  44 } else {
  45     if (!$course = get_record('course', 'id', $courseid)) {
  46         error('Course ID was incorrect');
  47     }
  48     $group = new object();
  49     $group->courseid = $course->id;
  50 }
  51
  52 require_login($course);
  53 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  54 require_capability('moodle/course:managegroups', $context);
  55
  56 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  57
  58 if ($id and $delete) {
  59     if (!$confirm) {
  60         print_header(get_string('deleteselectedgroup', 'group'), get_string('deleteselectedgroup', 'group'));
  61         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  62         $optionsno  = array('id'=>$courseid);
  63         notice_yesno(get_string('deletegroupconfirm', 'group', $group->name), 'group.php', 'index.php', $optionsyes, $optionsno, 'get', 'get');
  64         print_footer();
  65         die;
  66
  67     } else if (confirm_sesskey()){
  68         if (groups_delete_group($id)) {
  69             redirect('index.php?id='.$course->id);
  70         } else {
  71             print_error('erroreditgroup', 'group', $returnurl);
  72         }
  73     }
  74 }
  75
  76 /// First create the form
  77 $editform = new group_form();
  78 $editform->set_data($group);
  79
  80 if ($editform->is_cancelled()) {
  81     redirect($returnurl);
  82
  83 } elseif ($data = $editform->get_data()) {
  84
  85     if ($data->id) {
  86         if (!groups_update_group($data, $editform->_upload_manager)) {
  87             error('Error updating group');
  88         }
  89     } else {
  90         if (!$id = groups_create_group($data, $editform->_upload_manager)) {
  91             error('Error creating group');
  92         }
  93         $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  94     }
  95
  96     redirect($returnurl);
  97 }
  98
  99 $strgroups = get_string('groups');
 100 $strparticipants = get_string('participants');
 101
 102 if ($id) {
 103     $strheading = get_string('editgroupsettings', 'group');
 104 } else {
 105     $strheading = get_string('creategroup', 'group');
 106 }
 107
 108
 109 $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 110                   array('name'=>$strgroups, 'link'=>$CFG->wwwroot.'/group/index.php?id='.$courseid, 'type'=>'misc'),
 111                   array('name'=>$strheading, 'link'=>'', 'type'=>'misc'));
 112 $navigation = build_navigation($navlinks);
 113
 114 /// Print header
 115 print_header_simple($strgroups, ': '.$strgroups, $navigation, '', '', true, '', navmenu($course));
 116
 117 echo '<div id="grouppicture">';
 118 if ($id) {
 119     print_group_picture($group, $course->id);
 120 }
 121 echo '</div>';
 122 $editform->display();
 123 print_footer($course);
 124 ?>