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