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 $url = new moodle_url('/group/grouping.php');
  22 if ($id) {
  23     $url->param('id', $id);
  24     if (!$grouping = $DB->get_record('groupings', array('id'=>$id))) {
  25         print_error('invalidgroupid');
  26     }
  27     $grouping->description = clean_text($grouping->description);
  28     if (empty($courseid)) {
  29         $courseid = $grouping->courseid;
  30     } else if ($courseid != $grouping->courseid) {
  31         print_error('invalidcourseid');
  32     } else {
  33         $url->param('courseid', $courseid);
  34     }
  35
  36     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  37         print_error('invalidcourseid');
  38     }
  39
  40 } else {
  41     $url->param('courseid', $courseid);
  42     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  43         print_error('invalidcourseid');
  44     }
  45     $grouping = new stdClass();
  46     $grouping->courseid = $course->id;
  47 }
  48
  49 $PAGE->set_url($url);
  50
  51 require_login($course);
  52 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  53 require_capability('moodle/course:managegroups', $context);
  54
  55 $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$course->id;
  56
  57
  58 if ($id and $delete) {
  59     if (!$confirm) {
  60         $PAGE->set_title(get_string('deletegrouping', 'group'));
  61         $PAGE->set_heading($course->fullname. ': '. get_string('deletegrouping', 'group'));
  62         echo $OUTPUT->header();
  63         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  64         $optionsno  = array('id'=>$courseid);
  65         $formcontinue = new single_button(new moodle_url('grouping.php', $optionsyes), get_string('yes'), 'get');
  66         $formcancel = new single_button(new moodle_url('groupings.php', $optionsno), get_string('no'), 'get');
  67         echo $OUTPUT->confirm(get_string('deletegroupingconfirm', 'group', $grouping->name), $formcontinue, $formcancel);
  68         echo $OUTPUT->footer();
  69         die;
  70
  71     } else if (confirm_sesskey()){
  72         if (groups_delete_grouping($id)) {
  73             redirect($returnurl);
  74         } else {
  75             print_error('erroreditgrouping', 'group', $returnurl);
  76         }
  77     }
  78 }
  79
  80 // Prepare the description editor: We do support files for grouping descriptions
  81 $editoroptions = array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$course->maxbytes, 'trust'=>true, 'context'=>$context, 'noclean'=>true);
  82 if (!empty($grouping->id)) {
  83     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', $grouping->id);
  84 } else {
  85     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', null);
  86 }
  87
  88 /// First create the form
  89 $editform = new grouping_form(null, compact('editoroptions'));
  90 $editform->set_data($grouping);
  91
  92 if ($editform->is_cancelled()) {
  93     redirect($returnurl);
  94
  95 } elseif ($data = $editform->get_data()) {
  96     $success = true;
  97
  98     if ($data->id) {
  99         groups_update_grouping($data, $editoroptions);
 100     } else {
 101         groups_create_grouping($data, $editoroptions);
 102     }
 103
 104     redirect($returnurl);
 105
 106 }
 107
 108 $strgroupings    = get_string('groupings', 'group');
 109 $strparticipants = get_string('participants');
 110
 111 if ($id) {
 112     $strheading = get_string('editgroupingsettings', 'group');
 113 } else {
 114     $strheading = get_string('creategrouping', 'group');
 115 }
 116
 117 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$courseid)));
 118 $PAGE->navbar->add($strgroupings, new moodle_url('/group/groupings.php', array('id'=>$courseid)));
 119 $PAGE->navbar->add($strheading);
 120
 121 /// Print header
 122 $PAGE->set_title($strgroupings);
 123 $PAGE->set_heading($course->fullname. ': '.$strgroupings);
 124 echo $OUTPUT->header();
 125 echo $OUTPUT->heading($strheading);
 126 $editform->display();
 127 echo $OUTPUT->footer();