group/members.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  * Add/remove members from group.
  20  *
  21  * @copyright 2006 The Open University and others, N.D.Freear AT open.ac.uk, J.White AT open.ac.uk and others
  22  * @license   http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
  23  * @package   core_group
  24  */
  25 require_once(__DIR__ . '/../config.php');
  26 require_once(__DIR__ . '/lib.php');
  27 require_once($CFG->dirroot . '/user/selector/lib.php');
  28 require_once($CFG->dirroot . '/course/lib.php');
  29 require_once($CFG->libdir . '/filelib.php');
  30
  31 $groupid = required_param('group', PARAM_INT);
  32 $cancel  = optional_param('cancel', false, PARAM_BOOL);
  33
  34 $group = $DB->get_record('groups', array('id'=>$groupid), '*', MUST_EXIST);
  35 $course = $DB->get_record('course', array('id'=>$group->courseid), '*', MUST_EXIST);
  36
  37 $PAGE->set_url('/group/members.php', array('group'=>$groupid));
  38 $PAGE->set_pagelayout('admin');
  39
  40 require_login($course);
  41 $context = context_course::instance($course->id);
  42 require_capability('moodle/course:managegroups', $context);
  43
  44 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$course->id.'&group='.$group->id;
  45
  46 if ($cancel) {
  47     redirect($returnurl);
  48 }
  49
  50 $groupmembersselector = new group_members_selector('removeselect', array('groupid' => $groupid, 'courseid' => $course->id));
  51 $potentialmembersselector = new group_non_members_selector('addselect', array('groupid' => $groupid, 'courseid' => $course->id));
  52
  53 if (optional_param('add', false, PARAM_BOOL) && confirm_sesskey()) {
  54     $userstoadd = $potentialmembersselector->get_selected_users();
  55     if (!empty($userstoadd)) {
  56         foreach ($userstoadd as $user) {
  57             if (!groups_add_member($groupid, $user->id)) {
  58                 print_error('erroraddremoveuser', 'group', $returnurl);
  59             }
  60             $groupmembersselector->invalidate_selected_users();
  61             $potentialmembersselector->invalidate_selected_users();
  62         }
  63     }
  64 }
  65
  66 if (optional_param('remove', false, PARAM_BOOL) && confirm_sesskey()) {
  67     $userstoremove = $groupmembersselector->get_selected_users();
  68     if (!empty($userstoremove)) {
  69         foreach ($userstoremove as $user) {
  70             if (!groups_remove_member_allowed($groupid, $user->id)) {
  71                 print_error('errorremovenotpermitted', 'group', $returnurl,
  72                         $user->fullname);
  73             }
  74             if (!groups_remove_member($groupid, $user->id)) {
  75                 print_error('erroraddremoveuser', 'group', $returnurl);
  76             }
  77             $groupmembersselector->invalidate_selected_users();
  78             $potentialmembersselector->invalidate_selected_users();
  79         }
  80     }
  81 }
  82
  83 // Print the page and form
  84 $strgroups = get_string('groups');
  85 $strparticipants = get_string('participants');
  86 $stradduserstogroup = get_string('adduserstogroup', 'group');
  87 $strusergroupmembership = get_string('usergroupmembership', 'group');
  88
  89 $groupname = format_string($group->name);
  90
  91 $PAGE->requires->js('/group/clientlib.js');
  92 $PAGE->navbar->add($strparticipants, new moodle_url('/user/index.php', array('id'=>$course->id)));
  93 $PAGE->navbar->add($strgroups, new moodle_url('/group/index.php', array('id'=>$course->id)));
  94 $PAGE->navbar->add($stradduserstogroup);
  95
  96 /// Print header
  97 $PAGE->set_title("$course->shortname: $strgroups");
  98 $PAGE->set_heading($course->fullname);
  99 echo $OUTPUT->header();
 100 echo $OUTPUT->heading(get_string('adduserstogroup', 'group').": $groupname", 3);
 101
 102 // Store the rows we want to display in the group info.
 103 $groupinforow = array();
 104
 105 // Check if there is a description to display.
 106 if (!empty($group->description)) {
 107     $grouprenderer = $PAGE->get_renderer('core_group');
 108     $groupdetailpage = new \core_group\output\group_details($groupid);
 109     echo $grouprenderer->group_details($groupdetailpage);
 110 }
 111
 112 /// Print the editing form
 113 ?>
 114
 115 <div id="addmembersform">
 116     <form id="assignform" method="post" action="<?php echo $CFG->wwwroot; ?>/group/members.php?group=<?php echo $groupid; ?>">
 117     <div>
 118     <input type="hidden" name="sesskey" value="<?php p(sesskey()); ?>" />
 119
 120     <table class="generaltable generalbox groupmanagementtable boxaligncenter" summary="">
 121     <tr>
 122       <td id='existingcell'>
 123           <p>
 124             <label for="removeselect"><?php print_string('groupmembers', 'group'); ?></label>
 125           </p>
 126           <?php $groupmembersselector->display(); ?>
 127           </td>
 128       <td id='buttonscell'>
 129         <p class="arrow_button">
 130             <input class="btn btn-secondary" name="add" id="add"
 131                    type="submit" value="<?php echo $OUTPUT->larrow().'&nbsp;'.get_string('add'); ?>"
 132                    title="<?php print_string('add'); ?>" /><br />
 133             <input class="btn btn-secondary" name="remove" id="remove"
 134                    type="submit" value="<?php echo get_string('remove').'&nbsp;'.$OUTPUT->rarrow(); ?>"
 135                    title="<?php print_string('remove'); ?>" />
 136         </p>
 137       </td>
 138       <td id='potentialcell'>
 139           <p>
 140             <label for="addselect"><?php print_string('potentialmembs', 'group'); ?></label>
 141           </p>
 142           <?php $potentialmembersselector->display(); ?>
 143       </td>
 144       <td>
 145         <p><?php echo($strusergroupmembership) ?></p>
 146         <div id="group-usersummary"></div>
 147       </td>
 148     </tr>
 149     <tr><td colspan="3" id='backcell'>
 150         <input class="btn btn-secondary" type="submit" name="cancel"
 151                value="<?php print_string('backtogroups', 'group'); ?>" />
 152     </td></tr>
 153     </table>
 154     </div>
 155     </form>
 156 </div>
 157
 158 <?php
 159     //outputs the JS array used to display the other groups users are in
 160     $potentialmembersselector->print_user_summaries($course->id);
 161
 162     //this must be after calling display() on the selectors so their setup JS executes first
 163     $PAGE->requires->js_init_call('init_add_remove_members_page', null, false, $potentialmembersselector->get_js_module());
 164
 165     echo $OUTPUT->footer();