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 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  21
  22 // This script used to support group delete, but that has been moved. In case
  23 // anyone still links to it, let's redirect to the new script.
  24 if($delete) {
  25     redirect('delete.php?courseid='.$courseid.'&groups='.$id);
  26 }
  27
  28 if ($id) {
  29     if (!$group = $DB->get_record('groups', array('id'=>$id))) {
  30         print_error('invalidgroupid');
  31     }
  32     if (empty($courseid)) {
  33         $courseid = $group->courseid;
  34
  35     } else if ($courseid != $group->courseid) {
  36         print_error('invalidcourseid');
  37     }
  38
  39     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  40         print_error('invalidcourseid');
  41     }
  42
  43 } else {
  44     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  45         print_error('invalidcourseid');
  46     }
  47     $group = new stdClass();
  48     $group->courseid = $course->id;
  49 }
  50
  51 if ($id !== 0) {
  52     $PAGE->set_url('/group/group.php', array('id'=>$id));
  53 } else {
  54     $PAGE->set_url('/group/group.php', array('courseid'=>$courseid));
  55 }
  56
  57 require_login($course);
  58 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  59 require_capability('moodle/course:managegroups', $context);
  60
  61 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&group='.$id;
  62
  63 if ($id and $delete) {
  64     if (!$confirm) {
  65         $PAGE->set_title(get_string('deleteselectedgroup', 'group'));
  66         $PAGE->set_heading($course->fullname . ': '. get_string('deleteselectedgroup', 'group'));
  67         echo $OUTPUT->header();
  68         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  69         $optionsno  = array('id'=>$courseid);
  70         $formcontinue = new single_button(new moodle_url('group.php', $optionsyes), get_string('yes'), 'get');
  71         $formcancel = new single_button(new moodle_url($baseurl, $optionsno), get_string('no'), 'get');
  72         echo $OUTPUT->confirm(get_string('deletegroupconfirm', 'group', $group->name), $formcontinue, $formcancel);
  73         echo $OUTPUT->footer();
  74         die;
  75
  76     } else if (confirm_sesskey()){
  77         if (groups_delete_group($id)) {
  78             redirect('index.php?id='.$course->id);
  79         } else {
  80             print_error('erroreditgroup', 'group', $returnurl);
  81         }
  82     }
  83 }
  84
  85 // Prepare the description editor: We do support files for group descriptions
  86 $editoroptions = array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$course->maxbytes, 'trust'=>false, 'context'=>$context, 'noclean'=>true);
  87 if (!empty($group->id)) {
  88     $group = file_prepare_standard_editor($group, 'description', $editoroptions, $context, 'group', 'description', $group->id);
  89 } else {
  90     $group = file_prepare_standard_editor($group, 'description', $editoroptions, $context, 'group', 'description', null);
  91 }
  92
  93 /// First create the form
  94 $editform = new group_form(null, array('editoroptions'=>$editoroptions));
  95 $editform->set_data($group);
  96
  97 if ($editform->is_cancelled()) {
  98     redirect($returnurl);
  99
 100 } elseif ($data = $editform->get_data()) {
 101
 102     if ($data->id) {
 103         groups_update_group($data, $editform, $editoroptions);
 104     } else {
 105         $id = groups_create_group($data, $editform, $editoroptions);
 106         $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&group='.$id;
 107     }
 108
 109     redirect($returnurl);
 110 }
 111
 112 $strgroups = get_string('groups');
 113 $strparticipants = get_string('participants');
 114
 115 if ($id) {
 116     $strheading = get_string('editgroupsettings', 'group');
 117 } else {
 118     $strheading = get_string('creategroup', 'group');
 119 }
 120
 121 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$courseid)));
 122 $PAGE->navbar->add($strgroups, new moodle_url('/group/index.php', array('id'=>$courseid)));
 123 $PAGE->navbar->add($strheading);
 124
 125 /// Print header
 126 $PAGE->set_title($strgroups);
 127 $PAGE->set_heading($course->fullname . ': '.$strgroups);
 128 echo $OUTPUT->header();
 129 echo '<div id="grouppicture">';
 130 if ($id) {
 131     print_group_picture($group, $course->id);
 132 }
 133 echo '</div>';
 134 $editform->display();
 135 echo $OUTPUT->footer();