group/group.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 group OR edit group 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
  26 require_once('../config.php');
  27 require_once('lib.php');
  28 require_once('group_form.php');
  29
  30 /// get url variables
  31 $courseid = optional_param('courseid', 0, PARAM_INT);
  32 $id       = optional_param('id', 0, PARAM_INT);
  33 $delete   = optional_param('delete', 0, PARAM_BOOL);
  34 $confirm  = optional_param('confirm', 0, PARAM_BOOL);
  35
  36 // This script used to support group delete, but that has been moved. In case
  37 // anyone still links to it, let's redirect to the new script.
  38 if ($delete) {
  39     debugging('Deleting a group through group/group.php is deprecated and will be removed soon. Please use group/delete.php instead');
  40     redirect(new moodle_url('delete.php', array('courseid' => $courseid, 'groups' => $id)));
  41 }
  42
  43
  44 if ($id) {
  45     if (!$group = $DB->get_record('groups', array('id'=>$id))) {
  46         print_error('invalidgroupid');
  47     }
  48     if (empty($courseid)) {
  49         $courseid = $group->courseid;
  50
  51     } else if ($courseid != $group->courseid) {
  52         print_error('invalidcourseid');
  53     }
  54
  55     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  56         print_error('invalidcourseid');
  57     }
  58
  59 } else {
  60     if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  61         print_error('invalidcourseid');
  62     }
  63     $group = new stdClass();
  64     $group->courseid = $course->id;
  65 }
  66
  67 if ($id !== 0) {
  68     $PAGE->set_url('/group/group.php', array('id'=>$id));
  69 } else {
  70     $PAGE->set_url('/group/group.php', array('courseid'=>$courseid));
  71 }
  72
  73 require_login($course);
  74 $context = context_course::instance($course->id);
  75 require_capability('moodle/course:managegroups', $context);
  76
  77 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&group='.$id;
  78
  79 // Prepare the description editor: We do support files for group descriptions
  80 $editoroptions = array('maxfiles'=>EDITOR_UNLIMITED_FILES, 'maxbytes'=>$course->maxbytes, 'trust'=>false, 'context'=>$context, 'noclean'=>true);
  81 if (!empty($group->id)) {
  82     $editoroptions['subdirs'] = file_area_contains_subdirs($context, 'group', 'description', $group->id);
  83     $group = file_prepare_standard_editor($group, 'description', $editoroptions, $context, 'group', 'description', $group->id);
  84 } else {
  85     $editoroptions['subdirs'] = false;
  86     $group = file_prepare_standard_editor($group, 'description', $editoroptions, $context, 'group', 'description', null);
  87 }
  88
  89 /// First create the form
  90 $editform = new group_form(null, array('editoroptions'=>$editoroptions));
  91 $editform->set_data($group);
  92
  93 if ($editform->is_cancelled()) {
  94     redirect($returnurl);
  95
  96 } elseif ($data = $editform->get_data()) {
  97     if (!has_capability('moodle/course:changeidnumber', $context)) {
  98         // Remove the idnumber if the user doesn't have permission to modify it
  99         unset($data->idnumber);
 100     }
 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();