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 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  21
  22 if ($id) {
  23     if (!$group = get_record('groups', 'id', $id)) {
  24         error('Group ID was incorrect');
  25     }
  26     $group->description = clean_text($group->description);
  27     if (empty($courseid)) {
  28         $courseid = $group->courseid;
  29
  30     } else if ($courseid != $group->courseid) {
  31         error('Course ID was incorrect');
  32     }
  33
  34     if (!$course = get_record('course', 'id', $courseid)) {
  35         error('Course ID was incorrect');
  36     }
  37
  38 } else {
  39     if (!$course = get_record('course', 'id', $courseid)) {
  40         error('Course ID was incorrect');
  41     }
  42     $group = new object();
  43     $group->courseid = $course->id;
  44 }
  45
  46 require_login($course);
  47 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  48 require_capability('moodle/course:managegroups', $context);
  49
  50 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  51
  52 if ($id and $delete) {
  53     if (!$confirm) {
  54         print_header(get_string('deleteselectedgroup', 'group'), get_string('deleteselectedgroup', 'group'));
  55         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  56         $optionsno  = array('id'=>$courseid);
  57         notice_yesno(get_string('deletegroupconfirm', 'group', $group->name), 'group.php', 'index.php', $optionsyes, $optionsno, 'get', 'get');
  58         print_footer();
  59         die;
  60
  61     } else if (confirm_sesskey()){
  62         if (groups_delete_group($id)) {
  63             // MDL-9983
  64             $eventdata = new object();
  65             $eventdata->group = $id;
  66             $eventdata->course = $courseid;
  67             events_trigger('group_deleted', $eventdata);
  68             redirect('index.php?id='.$course->id);
  69         } else {
  70             print_error('erroreditgroup', 'group', $returnurl);
  71         }
  72     }
  73 }
  74
  75 /// First create the form
  76 $editform = new group_form();
  77 $editform->set_data($group);
  78
  79 if ($editform->is_cancelled()) {
  80     redirect($returnurl);
  81
  82 } elseif ($data = $editform->get_data()) {
  83
  84     if ($data->id) {
  85         if (!groups_update_group($data, $editform->_upload_manager)) {
  86             error('Error updating group');
  87         }
  88     } else {
  89         if (!$id = groups_create_group($data, $editform->_upload_manager)) {
  90             error('Error creating group');
  91         }
  92         $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&amp;group='.$id;
  93     }
  94
  95     redirect($returnurl);
  96 }
  97
  98 $strgroups = get_string('groups');
  99 $strparticipants = get_string('participants');
 100
 101 if ($id) {
 102     $strheading = get_string('editgroupsettings', 'group');
 103 } else {
 104     $strheading = get_string('creategroup', 'group');
 105 }
 106
 107
 108 $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 109                   array('name'=>$strgroups, 'link'=>$CFG->wwwroot.'/group/index.php?id='.$courseid, 'type'=>'misc'),
 110                   array('name'=>$strheading, 'link'=>'', 'type'=>'misc'));
 111 $navigation = build_navigation($navlinks);
 112
 113 /// Print header
 114 print_header_simple($strgroups, ': '.$strgroups, $navigation, '', '', true, '', navmenu($course));
 115
 116 echo '<div id="grouppicture">';
 117 if ($id) {
 118     print_group_picture($group, $course->id);
 119 }
 120 echo '</div>';
 121 $editform->display();
 122 print_footer($course);
 123 ?>