group/grouping.php

   1 <?php
   2 /**
   3  * Create grouping OR edit grouping 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 require_once('../config.php');
  12 require_once('lib.php');
  13 require_once('grouping_form.php');
  14
  15 /// get url variables
  16 $courseid = optional_param('courseid', 0, PARAM_INT);
  17 $id       = optional_param('id', 0, PARAM_INT);
  18 $delete   = optional_param('delete', 0, PARAM_BOOL);
  19 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  20
  21 if ($id) {
  22     if (!$grouping = get_record('groupings', 'id', $id)) {
  23         error('Group ID was incorrect');
  24     }
  25     $grouping->description = clean_text($grouping->description);
  26     if (empty($courseid)) {
  27         $courseid = $grouping->courseid;
  28
  29     } else if ($courseid != $grouping->courseid) {
  30         error('Course ID was incorrect');
  31     }
  32
  33     if (!$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     $grouping = new object();
  42     $grouping->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 = $CFG->wwwroot.'/group/groupings.php?id='.$course->id;
  50
  51
  52 if ($id and $delete) {
  53     if (!$confirm) {
  54         print_header(get_string('deletegrouping', 'group'), get_string('deletegrouping', 'group'));
  55         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  56         $optionsno  = array('id'=>$courseid);
  57         notice_yesno(get_string('deletegroupingconfirm', 'group', $grouping->name), 'grouping.php', 'groupings.php', $optionsyes, $optionsno, 'get', 'get');
  58         print_footer();
  59         die;
  60
  61     } else if (confirm_sesskey()){
  62         if (groups_delete_grouping($id)) {
  63             // MDL-9983
  64             $eventdata = new object();
  65             $eventdata->group = $id;
  66             $eventdata->course = $courseid;
  67             events_trigger('grouping_deleted', $eventdata);
  68             redirect($returnurl);
  69         } else {
  70             print_error('erroreditgrouping', 'group', $returnurl);
  71         }
  72     }
  73 }
  74
  75 /// First create the form
  76 $editform = new grouping_form();
  77 $editform->set_data($grouping);
  78
  79 if ($editform->is_cancelled()) {
  80     redirect($returnurl);
  81
  82 } elseif ($data = $editform->get_data()) {
  83     $success = true;
  84
  85     if ($data->id) {
  86         if (!groups_update_grouping($data)) {
  87             error('Error updating grouping');
  88         }
  89
  90     } else {
  91         if (!groups_create_grouping($data)) {
  92             error('Error creating grouping');
  93         }
  94     }
  95
  96     redirect($returnurl);
  97
  98 }
  99
 100 $strgroupings     = get_string('groupings', 'group');
 101 $strparticipants = get_string('participants');
 102
 103 if ($id) {
 104     $strheading = get_string('editgroupingsettings', 'group');
 105 } else {
 106     $strheading = get_string('creategrouping', 'group');
 107 }
 108
 109 $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 110                   array('name'=>$strgroupings, 'link'=>$CFG->wwwroot.'/group/groupings.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($strgroupings, ': '.$strgroupings, $navigation, '', '', true, '', navmenu($course));
 116
 117
 118 print_heading($strheading);
 119 $editform->display();
 120 print_footer($course);
 121
 122 ?>