group/grouping.php

   1 <?php
   2 // This file is part of Moodle - http://moodle.org/
   3 //
   4 // Moodle is free software: you can redistribute it and/or modify
   5 // it under the terms of the GNU General Public License as published by
   6 // the Free Software Foundation, either version 3 of the License, or
   7 // (at your option) any later version.
   8 //
   9 // Moodle is distributed in the hope that it will be useful,
  10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12 // GNU General Public License for more details.
  13 //
  14 // You should have received a copy of the GNU General Public License
  15 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
  16
  17
  18 /**
  19  * Create grouping OR edit grouping settings.
  20  *
  21  * @copyright 2006 The Open University, N.D.Freear AT open.ac.uk, J.White AT open.ac.uk
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package   core_group
  24  */
  25 require_once('../config.php');
  26 require_once('lib.php');
  27 require_once('grouping_form.php');
  28
  29 /// get url variables
  30 $courseid = optional_param('courseid', 0, PARAM_INT);
  31 $id       = optional_param('id', 0, PARAM_INT);
  32 $delete   = optional_param('delete', 0, PARAM_BOOL);
  33 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  34
  35 $url = new moodle_url('/group/grouping.php');
  36 if ($id) {
  37     $url->param('id', $id);
  38     if (!$grouping = $DB->get_record('groupings', array('id'=>$id))) {
  39         print_error('invalidgroupid');
  40     }
  41     $grouping->description = clean_text($grouping->description);
  42     if (empty($courseid)) {
  43         $courseid = $grouping->courseid;
  44     } else if ($courseid != $grouping->courseid) {
  45         print_error('invalidcourseid');
  46     } else {
  47         $url->param('courseid', $courseid);
  48     }
  49
  50     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  51         print_error('invalidcourseid');
  52     }
  53
  54 } else {
  55     $url->param('courseid', $courseid);
  56     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  57         print_error('invalidcourseid');
  58     }
  59     $grouping = new stdClass();
  60     $grouping->courseid = $course->id;
  61 }
  62
  63 $PAGE->set_url($url);
  64
  65 require_login($course);
  66 $context = get_context_instance(CONTEXT_COURSE, $course->id);
  67 require_capability('moodle/course:managegroups', $context);
  68
  69 $returnurl = $CFG->wwwroot.'/group/groupings.php?id='.$course->id;
  70
  71
  72 if ($id and $delete) {
  73     if (!$confirm) {
  74         $PAGE->set_title(get_string('deletegrouping', 'group'));
  75         $PAGE->set_heading($course->fullname. ': '. get_string('deletegrouping', 'group'));
  76         echo $OUTPUT->header();
  77         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  78         $optionsno  = array('id'=>$courseid);
  79         $formcontinue = new single_button(new moodle_url('grouping.php', $optionsyes), get_string('yes'), 'get');
  80         $formcancel = new single_button(new moodle_url('groupings.php', $optionsno), get_string('no'), 'get');
  81         echo $OUTPUT->confirm(get_string('deletegroupingconfirm', 'group', $grouping->name), $formcontinue, $formcancel);
  82         echo $OUTPUT->footer();
  83         die;
  84
  85     } else if (confirm_sesskey()){
  86         if (groups_delete_grouping($id)) {
  87             redirect($returnurl);
  88         } else {
  89             print_error('erroreditgrouping', 'group', $returnurl);
  90         }
  91     }
  92 }
  93
  94 // Prepare the description editor: We do support files for grouping descriptions
  95 $editoroptions = array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$course->maxbytes, 'trust'=>true, 'context'=>$context, 'noclean'=>true);
  96 if (!empty($grouping->id)) {
  97     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', $grouping->id);
  98 } else {
  99     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', null);
 100 }
 101
 102 /// First create the form
 103 $editform = new grouping_form(null, compact('editoroptions'));
 104 $editform->set_data($grouping);
 105
 106 if ($editform->is_cancelled()) {
 107     redirect($returnurl);
 108
 109 } elseif ($data = $editform->get_data()) {
 110     $success = true;
 111
 112     if ($data->id) {
 113         groups_update_grouping($data, $editoroptions);
 114     } else {
 115         groups_create_grouping($data, $editoroptions);
 116     }
 117
 118     redirect($returnurl);
 119
 120 }
 121
 122 $strgroupings    = get_string('groupings', 'group');
 123 $strparticipants = get_string('participants');
 124
 125 if ($id) {
 126     $strheading = get_string('editgroupingsettings', 'group');
 127 } else {
 128     $strheading = get_string('creategrouping', 'group');
 129 }
 130
 131 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$courseid)));
 132 $PAGE->navbar->add($strgroupings, new moodle_url('/group/groupings.php', array('id'=>$courseid)));
 133 $PAGE->navbar->add($strheading);
 134
 135 /// Print header
 136 $PAGE->set_title($strgroupings);
 137 $PAGE->set_heading($course->fullname. ': '.$strgroupings);
 138 echo $OUTPUT->header();
 139 echo $OUTPUT->heading($strheading);
 140 $editform->display();
 141 echo $OUTPUT->footer();