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', $id)) {
  23         error('Group ID was incorrect');
  24     }
  25     if (empty($courseid)) {
  26         $courseid = $grouping->courseid;
  27
  28     } else if ($courseid != $grouping->courseid) {
  29         error('Course ID was incorrect');
  30     }
  31
  32     if (!$course = get_record('course', 'id', $courseid)) {
  33         error('Course ID was incorrect');
  34     }
  35
  36 } else {
  37     if (!$course = get_record('course', 'id', $courseid)) {
  38         error('Course ID was incorrect');
  39     }
  40     $grouping = new object();
  41     $grouping->courseid = $course->id;
  42 }
  43
  44 require_login($course);
  45 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  46 require_capability('moodle/course:managegroups', $context);
  47
  48 $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$course->id;
  49
  50
  51 if ($id and $delete) {
  52     if (!$confirm) {
  53         print_header(get_string('deleteselectedgrouping', '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('deletegroupingconfirm', 'group', $grouping->name), 'grouping.php', 'groupings.php', $optionsyes, $optionsno, 'get', 'get');
  57         print_footer();
  58         die;
  59
  60     } else if (confirm_sesskey()){
  61         if (groups_delete_grouping($id)) {
  62             // MDL-9983
  63             $eventdata = new object();
  64             $eventdata->group = $id;
  65             $eventdata->course = $courseid;
  66             events_trigger('grouping_deleted', $eventdata);
  67             redirect($returnurl);
  68         } else {
  69             print_error('erroreditgrouping', 'group', $returnurl);
  70         }
  71     }
  72 }
  73
  74 /// First create the form
  75 $editform = new grouping_form();
  76 $editform->set_data($grouping);
  77
  78 if ($editform->is_cancelled()) {
  79     redirect($returnurl);
  80
  81 } elseif ($data = $editform->get_data()) {
  82     $success = true;
  83
  84     if ($data->id) {
  85         $data->timemodified = time();
  86         if (!update_record('groupings', $data)) {
  87             error('Error updating group');
  88         }
  89
  90     } else {
  91         $data->timecreated = time();
  92         $data->timemodified = $data->timecreated;
  93         if (!$data->id = insert_record('groupings', $data)) {
  94             error('Error updating grouping');
  95         }
  96     }
  97
  98     redirect($returnurl);
  99
 100 }
 101
 102 $strgroupings     = get_string('groupings', 'group');
 103 $strparticipants = get_string('participants');
 104
 105 if ($id) {
 106     $strheading = get_string('editgroupingsettings', 'group');
 107 } else {
 108     $strheading = get_string('creategrouping', 'group');
 109 }
 110
 111 $navlinks = array(array('name'=>$strparticipants, 'link'=>$CFG->wwwroot.'/user/index.php?id='.$courseid, 'type'=>'misc'),
 112                   array('name'=>$strgroupings, 'link'=>$CFG->wwwroot.'/group/groupings.php?id='.$courseid, 'type'=>'misc'),
 113                   array('name'=>$strheading, 'link'=>'', 'type'=>'misc'));
 114 $navigation = build_navigation($navlinks);
 115
 116 /// Print header
 117 print_header_simple($strgroupings, ': '.$strgroupings, $navigation, '', '', true, '', navmenu($course));
 118
 119
 120 print_heading($strheading);
 121 $editform->display();
 122 print_footer($course);
 123
 124 ?>