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 $delete) {
  73     if (!empty($grouping->idnumber) && !has_capability('moodle/course:changeidnumber', $context)) {
  74         print_error('groupinghasidnumber', '', '', $grouping->name);
  75     }
  76     if (!$confirm) {
  77         $PAGE->set_title(get_string('deletegrouping', 'group'));
  78         $PAGE->set_heading($course->fullname. ': '. get_string('deletegrouping', 'group'));
  79         echo $OUTPUT->header();
  80         $optionsyes = array('id'=>$id, 'delete'=>1, 'courseid'=>$courseid, 'sesskey'=>sesskey(), 'confirm'=>1);
  81         $optionsno  = array('id'=>$courseid);
  82         $formcontinue = new single_button(new moodle_url('grouping.php', $optionsyes), get_string('yes'), 'get');
  83         $formcancel = new single_button(new moodle_url('groupings.php', $optionsno), get_string('no'), 'get');
  84         echo $OUTPUT->confirm(get_string('deletegroupingconfirm', 'group', $grouping->name), $formcontinue, $formcancel);
  85         echo $OUTPUT->footer();
  86         die;
  87
  88     } else if (confirm_sesskey()){
  89         if (groups_delete_grouping($id)) {
  90             redirect($returnurl);
  91         } else {
  92             print_error('erroreditgrouping', 'group', $returnurl);
  93         }
  94     }
  95 }
  96
  97 // Prepare the description editor: We do support files for grouping descriptions
  98 $editoroptions = array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$course->maxbytes, 'trust'=>true, 'context'=>$context, 'noclean'=>true);
  99 if (!empty($grouping->id)) {
 100     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', $grouping->id);
 101 } else {
 102     $grouping = file_prepare_standard_editor($grouping, 'description', $editoroptions, $context, 'grouping', 'description', null);
 103 }
 104
 105 /// First create the form
 106 $editform = new grouping_form(null, compact('editoroptions'));
 107 $editform->set_data($grouping);
 108
 109 if ($editform->is_cancelled()) {
 110     redirect($returnurl);
 111
 112 } elseif ($data = $editform->get_data()) {
 113     $success = true;
 114     if (!has_capability('moodle/course:changeidnumber', $context)) {
 115         // Remove the idnumber if the user doesn't have permission to modify it
 116         unset($data->idnumber);
 117     }
 118
 119     if ($data->id) {
 120         groups_update_grouping($data, $editoroptions);
 121     } else {
 122         groups_create_grouping($data, $editoroptions);
 123     }
 124
 125     redirect($returnurl);
 126
 127 }
 128
 129 $strgroupings    = get_string('groupings', 'group');
 130 $strparticipants = get_string('participants');
 131
 132 if ($id) {
 133     $strheading = get_string('editgroupingsettings', 'group');
 134 } else {
 135     $strheading = get_string('creategrouping', 'group');
 136 }
 137
 138 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$courseid)));
 139 $PAGE->navbar->add($strgroupings, new moodle_url('/group/groupings.php', array('id'=>$courseid)));
 140 $PAGE->navbar->add($strheading);
 141
 142 /// Print header
 143 $PAGE->set_title($strgroupings);
 144 $PAGE->set_heading($course->fullname. ': '.$strgroupings);
 145 echo $OUTPUT->header();
 146 echo $OUTPUT->heading($strheading);
 147 $editform->display();
 148 echo $OUTPUT->footer();