group/overview.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  * Print an overview of groupings & group membership
  20  *
  21  * @copyright  Matt Clarkson mattc@catalyst.net.nz
  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($CFG->libdir . '/filelib.php');
  28
  29 define('OVERVIEW_NO_GROUP', -1); // The fake group for users not in a group.
  30 define('OVERVIEW_GROUPING_GROUP_NO_GROUPING', -1); // The fake grouping for groups that have no grouping.
  31 define('OVERVIEW_GROUPING_NO_GROUP', -2); // The fake grouping for users with no group.
  32
  33 $courseid   = required_param('id', PARAM_INT);
  34 $groupid    = optional_param('group', 0, PARAM_INT);
  35 $groupingid = optional_param('grouping', 0, PARAM_INT);
  36
  37 $returnurl = $CFG->wwwroot.'/group/index.php?id='.$courseid;
  38 $rooturl   = $CFG->wwwroot.'/group/overview.php?id='.$courseid;
  39
  40 if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
  41     print_error('invalidcourse');
  42 }
  43
  44 $url = new moodle_url('/group/overview.php', array('id'=>$courseid));
  45 if ($groupid !== 0) {
  46     $url->param('group', $groupid);
  47 }
  48 if ($groupingid !== 0) {
  49     $url->param('grouping', $groupingid);
  50 }
  51 $PAGE->set_url($url);
  52
  53 // Make sure that the user has permissions to manage groups.
  54 require_login($course);
  55
  56 $context = context_course::instance($courseid);
  57 require_capability('moodle/course:managegroups', $context);
  58
  59 $strgroups           = get_string('groups');
  60 $strparticipants     = get_string('participants');
  61 $stroverview         = get_string('overview', 'group');
  62 $strgrouping         = get_string('grouping', 'group');
  63 $strgroup            = get_string('group', 'group');
  64 $strnotingrouping    = get_string('notingrouping', 'group');
  65 $strfiltergroups     = get_string('filtergroups', 'group');
  66 $strnogroups         = get_string('nogroups', 'group');
  67 $strdescription      = get_string('description');
  68 $strnotingroup       = get_string('notingrouplist', 'group');
  69 $strnogroup          = get_string('nogroup', 'group');
  70 $strnogrouping       = get_string('nogrouping', 'group');
  71
  72 // This can show all users and all groups in a course.
  73 // This is lots of data so allow this script more resources.
  74 raise_memory_limit(MEMORY_EXTRA);
  75
  76 // Get all groupings and sort them by formatted name.
  77 $groupings = $DB->get_records('groupings', array('courseid'=>$courseid), 'name');
  78 foreach ($groupings as $gid => $grouping) {
  79     $groupings[$gid]->formattedname = format_string($grouping->name, true, array('context' => $context));
  80 }
  81 core_collator::asort_objects_by_property($groupings, 'formattedname');
  82 $members = array();
  83 foreach ($groupings as $grouping) {
  84     $members[$grouping->id] = array();
  85 }
  86 // Groups not in a grouping.
  87 $members[OVERVIEW_GROUPING_GROUP_NO_GROUPING] = array();
  88
  89 // Get all groups
  90 $groups = $DB->get_records('groups', array('courseid'=>$courseid), 'name');
  91
  92 $params = array('courseid'=>$courseid);
  93 if ($groupid) {
  94     $groupwhere = "AND g.id = :groupid";
  95     $params['groupid']   = $groupid;
  96 } else {
  97     $groupwhere = "";
  98 }
  99
 100 if ($groupingid) {
 101     if ($groupingid < 0) { // No grouping filter.
 102         $groupingwhere = "AND gg.groupingid IS NULL";
 103     } else {
 104         $groupingwhere = "AND gg.groupingid = :groupingid";
 105         $params['groupingid'] = $groupingid;
 106     }
 107 } else {
 108     $groupingwhere = "";
 109 }
 110
 111 list($sort, $sortparams) = users_order_by_sql('u');
 112
 113 $userfieldsapi = \core_user\fields::for_identity($context)->with_userpic();
 114 [
 115     'selects' => $userfieldsselects,
 116     'joins' => $userfieldsjoin,
 117     'params' => $userfieldsparams
 118 ] = (array)$userfieldsapi->get_sql('u', true);
 119 $extrafields = $userfieldsapi->get_required_fields([\core_user\fields::PURPOSE_IDENTITY]);
 120 $allnames = 'u.id ' . $userfieldsselects;
 121
 122 $sql = "SELECT g.id AS groupid, gg.groupingid, u.id AS userid, $allnames, u.idnumber, u.username
 123           FROM {groups} g
 124                LEFT JOIN {groupings_groups} gg ON g.id = gg.groupid
 125                LEFT JOIN {groups_members} gm ON g.id = gm.groupid
 126                LEFT JOIN {user} u ON gm.userid = u.id
 127                $userfieldsjoin
 128          WHERE g.courseid = :courseid $groupwhere $groupingwhere
 129       ORDER BY g.name, $sort";
 130
 131 $rs = $DB->get_recordset_sql($sql, array_merge($params, $sortparams, $userfieldsparams));
 132 foreach ($rs as $row) {
 133     $user = username_load_fields_from_object((object) [], $row, null,
 134         array_merge(['id' => 'userid', 'username', 'idnumber'], $extrafields));
 135
 136     if (!$row->groupingid) {
 137         $row->groupingid = OVERVIEW_GROUPING_GROUP_NO_GROUPING;
 138     }
 139     if (!array_key_exists($row->groupid, $members[$row->groupingid])) {
 140         $members[$row->groupingid][$row->groupid] = array();
 141     }
 142     if (!empty($user->id)) {
 143         $members[$row->groupingid][$row->groupid][] = $user;
 144     }
 145 }
 146 $rs->close();
 147
 148 // Add 'no groupings' / 'no groups' selectors.
 149 $groupings[OVERVIEW_GROUPING_GROUP_NO_GROUPING] = (object)array(
 150     'id' => OVERVIEW_GROUPING_GROUP_NO_GROUPING,
 151     'formattedname' => $strnogrouping,
 152 );
 153 $groups[OVERVIEW_NO_GROUP] = (object)array(
 154     'id' => OVERVIEW_NO_GROUP,
 155     'courseid' => $courseid,
 156     'idnumber' => '',
 157     'name' => $strnogroup,
 158     'description' => '',
 159     'descriptionformat' => FORMAT_HTML,
 160     'enrolmentkey' => '',
 161     'picture' => 0,
 162     'timecreated' => 0,
 163     'timemodified' => 0,
 164 );
 165
 166 // Add users who are not in a group.
 167 if ($groupid <= 0 && $groupingid <= 0) {
 168     list($esql, $params) = get_enrolled_sql($context, null, 0, true);
 169     $sql = "SELECT u.id, $allnames, u.idnumber, u.username
 170               FROM {user} u
 171               JOIN ($esql) e ON e.id = u.id
 172          LEFT JOIN (
 173                   SELECT gm.userid
 174                     FROM {groups_members} gm
 175                     JOIN {groups} g ON g.id = gm.groupid
 176                    WHERE g.courseid = :courseid
 177                    ) grouped ON grouped.userid = u.id
 178                   $userfieldsjoin
 179              WHERE grouped.userid IS NULL";
 180     $params['courseid'] = $courseid;
 181
 182     $nogroupusers = $DB->get_records_sql($sql, array_merge($params, $userfieldsparams));
 183
 184     if ($nogroupusers) {
 185         $members[OVERVIEW_GROUPING_NO_GROUP][OVERVIEW_NO_GROUP] = $nogroupusers;
 186     }
 187 }
 188
 189 navigation_node::override_active_url(new moodle_url('/group/index.php', array('id'=>$courseid)));
 190 $PAGE->navbar->add(get_string('overview', 'group'));
 191
 192 /// Print header
 193 $PAGE->set_title($strgroups);
 194 $PAGE->set_heading($course->fullname);
 195 $PAGE->set_pagelayout('standard');
 196 echo $OUTPUT->header();
 197
 198 echo $OUTPUT->render_participants_tertiary_nav($course);
 199 /// Print overview
 200 echo $OUTPUT->heading(format_string($course->shortname, true, array('context' => $context)) .' '.$stroverview, 3);
 201
 202 echo $strfiltergroups;
 203
 204 $options = array();
 205 $options[0] = get_string('all');
 206 foreach ($groupings as $grouping) {
 207     $options[$grouping->id] = strip_tags($grouping->formattedname);
 208 }
 209 $popupurl = new moodle_url($rooturl.'&group='.$groupid);
 210 $select = new single_select($popupurl, 'grouping', $options, $groupingid, array());
 211 $select->label = $strgrouping;
 212 $select->formid = 'selectgrouping';
 213 echo $OUTPUT->render($select);
 214
 215 $options = array();
 216 $options[0] = get_string('all');
 217 foreach ($groups as $group) {
 218     $options[$group->id] = strip_tags(format_string($group->name));
 219 }
 220 $popupurl = new moodle_url($rooturl.'&grouping='.$groupingid);
 221 $select = new single_select($popupurl, 'group', $options, $groupid, array());
 222 $select->label = $strgroup;
 223 $select->formid = 'selectgroup';
 224 echo $OUTPUT->render($select);
 225
 226 /// Print table
 227 $printed = false;
 228 foreach ($members as $gpgid=>$groupdata) {
 229     if ($groupingid and $groupingid != $gpgid) {
 230         if ($groupingid > 0 || $gpgid > 0) { // Still show 'not in group' when 'no grouping' selected.
 231             continue; // Do not show.
 232         }
 233     }
 234     $table = new html_table();
 235     $table->head  = array(get_string('groupscount', 'group', count($groupdata)), get_string('groupmembers', 'group'), get_string('usercount', 'group'));
 236     $table->size  = array('20%', '70%', '10%');
 237     $table->align = array('left', 'left', 'center');
 238     $table->width = '90%';
 239     $table->data  = array();
 240     foreach ($groupdata as $gpid=>$users) {
 241         if ($groupid and $groupid != $gpid) {
 242             continue;
 243         }
 244         $line = array();
 245         $name = print_group_picture($groups[$gpid], $course->id, false, true, false) . format_string($groups[$gpid]->name);
 246         $description = file_rewrite_pluginfile_urls($groups[$gpid]->description, 'pluginfile.php', $context->id, 'group', 'description', $gpid);
 247         $options = new stdClass;
 248         $options->noclean = true;
 249         $options->overflowdiv = true;
 250         $line[] = $name;
 251         $viewfullnames = has_capability('moodle/site:viewfullnames', $context);
 252         $fullnames = array();
 253         foreach ($users as $user) {
 254             $displayname = fullname($user, $viewfullnames);
 255             if ($extrafields) {
 256                 $extrafieldsdisplay = [];
 257                 foreach ($extrafields as $field) {
 258                     $extrafieldsdisplay[] = s($user->{$field});
 259                 }
 260                 $displayname .= ' (' . implode(', ', $extrafieldsdisplay) . ')';
 261             }
 262
 263             $fullnames[] = html_writer::link(new moodle_url('/user/view.php', ['id' => $user->id, 'course' => $course->id]),
 264                 $displayname);
 265         }
 266         $line[] = implode(', ', $fullnames);
 267         $line[] = count($users);
 268         $table->data[] = $line;
 269     }
 270     if ($groupid and empty($table->data)) {
 271         continue;
 272     }
 273     if ($gpgid < 0) {
 274         // Display 'not in group' for grouping id == OVERVIEW_GROUPING_NO_GROUP.
 275         if ($gpgid == OVERVIEW_GROUPING_NO_GROUP) {
 276             echo $OUTPUT->heading($strnotingroup, 3);
 277         } else {
 278             echo $OUTPUT->heading($strnotingrouping, 3);
 279         }
 280     } else {
 281         echo $OUTPUT->heading($groupings[$gpgid]->formattedname, 3);
 282         $description = file_rewrite_pluginfile_urls($groupings[$gpgid]->description, 'pluginfile.php', $context->id, 'grouping', 'description', $gpgid);
 283         $options = new stdClass;
 284         $options->overflowdiv = true;
 285         echo $OUTPUT->box(format_text($description, $groupings[$gpgid]->descriptionformat, $options), 'generalbox boxwidthnarrow boxaligncenter');
 286     }
 287     echo html_writer::table($table);
 288     $printed = true;
 289 }
 290
 291 echo $OUTPUT->footer();