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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* Print an overview of groupings & group membership
*
* @copyright Matt Clarkson mattc@catalyst.net.nz
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core_group
*/
require_once('../config.php');
require_once($CFG->libdir . '/filelib.php');
define('OVERVIEW_NO_GROUP', -1); // The fake group for users not in a group.
define('OVERVIEW_GROUPING_GROUP_NO_GROUPING', -1); // The fake grouping for groups that have no grouping.
define('OVERVIEW_GROUPING_NO_GROUP', -2); // The fake grouping for users with no group.
$courseid = required_param('id', PARAM_INT);
$groupid = optional_param('group', 0, PARAM_INT);
$groupingid = optional_param('grouping', 0, PARAM_INT);
$returnurl = $CFG->wwwroot.'/group/index.php?id='.$courseid;
$rooturl = $CFG->wwwroot.'/group/overview.php?id='.$courseid;
if (!$course = $DB->get_record('course', array('id'=>$courseid))) {
print_error('invalidcourse');
}
$url = new moodle_url('/group/overview.php', array('id'=>$courseid));
if ($groupid !== 0) {
$url->param('group', $groupid);
}
if ($groupingid !== 0) {
$url->param('grouping', $groupingid);
}
$PAGE->set_url($url);
// Make sure that the user has permissions to manage groups.
require_login($course);
$context = context_course::instance($courseid);
require_capability('moodle/course:managegroups', $context);
$strgroups = get_string('groups');
$strparticipants = get_string('participants');
$stroverview = get_string('overview', 'group');
$strgrouping = get_string('grouping', 'group');
$strgroup = get_string('group', 'group');
$strnotingrouping = get_string('notingrouping', 'group');
$strfiltergroups = get_string('filtergroups', 'group');
$strnogroups = get_string('nogroups', 'group');
$strdescription = get_string('description');
$strnotingroup = get_string('notingrouplist', 'group');
$strnogroup = get_string('nogroup', 'group');
$strnogrouping = get_string('nogrouping', 'group');
// This can show all users and all groups in a course.
// This is lots of data so allow this script more resources.
raise_memory_limit(MEMORY_EXTRA);
// Get all groupings and sort them by formatted name.
$groupings = $DB->get_records('groupings', array('courseid'=>$courseid), 'name');
foreach ($groupings as $gid => $grouping) {
$groupings[$gid]->formattedname = format_string($grouping->name, true, array('context' => $context));
}
core_collator::asort_objects_by_property($groupings, 'formattedname');
$members = array();
foreach ($groupings as $grouping) {
$members[$grouping->id] = array();
}
// Groups not in a grouping.
$members[OVERVIEW_GROUPING_GROUP_NO_GROUPING] = array();
// Get all groups
$groups = $DB->get_records('groups', array('courseid'=>$courseid), 'name');
$params = array('courseid'=>$courseid);
if ($groupid) {
$groupwhere = "AND g.id = :groupid";
$params['groupid'] = $groupid;
} else {
$groupwhere = "";
}
if ($groupingid) {
if ($groupingid < 0) { // No grouping filter.
$groupingwhere = "AND gg.groupingid IS NULL";
} else {
$groupingwhere = "AND gg.groupingid = :groupingid";
$params['groupingid'] = $groupingid;
}
} else {
$groupingwhere = "";
}
list($sort, $sortparams) = users_order_by_sql('u');
$allnames = get_all_user_name_fields(true, 'u');
$sql = "SELECT g.id AS groupid, gg.groupingid, u.id AS userid, $allnames, u.idnumber, u.username
FROM {groups} g
LEFT JOIN {groupings_groups} gg ON g.id = gg.groupid
LEFT JOIN {groups_members} gm ON g.id = gm.groupid
LEFT JOIN {user} u ON gm.userid = u.id
WHERE g.courseid = :courseid $groupwhere $groupingwhere
ORDER BY g.name, $sort";
$rs = $DB->get_recordset_sql($sql, array_merge($params, $sortparams));
foreach ($rs as $row) {
$user = new stdClass();
$user = username_load_fields_from_object($user, $row, null, array('id' => 'userid', 'username', 'idnumber'));
if (!$row->groupingid) {
$row->groupingid = OVERVIEW_GROUPING_GROUP_NO_GROUPING;
}
if (!array_key_exists($row->groupid, $members[$row->groupingid])) {
$members[$row->groupingid][$row->groupid] = array();
}
if (!empty($user->id)) {
$members[$row->groupingid][$row->groupid][] = $user;
}
}
$rs->close();
// Add 'no groupings' / 'no groups' selectors.
$groupings[OVERVIEW_GROUPING_GROUP_NO_GROUPING] = (object)array(
'id' => OVERVIEW_GROUPING_GROUP_NO_GROUPING,
'formattedname' => $strnogrouping,
);
$groups[OVERVIEW_NO_GROUP] = (object)array(
'id' => OVERVIEW_NO_GROUP,
'courseid' => $courseid,
'idnumber' => '',
'name' => $strnogroup,
'description' => '',
'descriptionformat' => FORMAT_HTML,
'enrolmentkey' => '',
'picture' => 0,
'hidepicture' => 0,
'timecreated' => 0,
'timemodified' => 0,
);
// Add users who are not in a group.
if ($groupid <= 0 && $groupingid <= 0) {
list($esql, $params) = get_enrolled_sql($context, null, 0, true);
$sql = "SELECT u.id, $allnames, u.idnumber, u.username
FROM {user} u
JOIN ($esql) e ON e.id = u.id
LEFT JOIN (
SELECT gm.userid
FROM {groups_members} gm
JOIN {groups} g ON g.id = gm.groupid
WHERE g.courseid = :courseid
) grouped ON grouped.userid = u.id
WHERE grouped.userid IS NULL";
$params['courseid'] = $courseid;
$nogroupusers = $DB->get_records_sql($sql, $params);
if ($nogroupusers) {
$members[OVERVIEW_GROUPING_NO_GROUP][OVERVIEW_NO_GROUP] = $nogroupusers;
}
}
navigation_node::override_active_url(new moodle_url('/group/index.php', array('id'=>$courseid)));
$PAGE->navbar->add(get_string('overview', 'group'));
/// Print header
$PAGE->set_title($strgroups);
$PAGE->set_heading($course->fullname);
$PAGE->set_pagelayout('standard');
echo $OUTPUT->header();
// Add tabs
$currenttab = 'overview';
require('tabs.php');
/// Print overview
echo $OUTPUT->heading(format_string($course->shortname, true, array('context' => $context)) .' '.$stroverview, 3);
echo $strfiltergroups;
$options = array();
$options[0] = get_string('all');
foreach ($groupings as $grouping) {
$options[$grouping->id] = strip_tags($grouping->formattedname);
}
$popupurl = new moodle_url($rooturl.'&group='.$groupid);
$select = new single_select($popupurl, 'grouping', $options, $groupingid, array());
$select->label = $strgrouping;
$select->formid = 'selectgrouping';
echo $OUTPUT->render($select);
$options = array();
$options[0] = get_string('all');
foreach ($groups as $group) {
$options[$group->id] = strip_tags(format_string($group->name));
}
$popupurl = new moodle_url($rooturl.'&grouping='.$groupingid);
$select = new single_select($popupurl, 'group', $options, $groupid, array());
$select->label = $strgroup;
$select->formid = 'selectgroup';
echo $OUTPUT->render($select);
/// Print table
$printed = false;
$hoverevents = array();
foreach ($members as $gpgid=>$groupdata) {
if ($groupingid and $groupingid != $gpgid) {
if ($groupingid > 0 || $gpgid > 0) { // Still show 'not in group' when 'no grouping' selected.
continue; // Do not show.
}
}
$table = new html_table();
$table->head = array(get_string('groupscount', 'group', count($groupdata)), get_string('groupmembers', 'group'), get_string('usercount', 'group'));
$table->size = array('20%', '70%', '10%');
$table->align = array('left', 'left', 'center');
$table->width = '90%';
$table->data = array();
foreach ($groupdata as $gpid=>$users) {
if ($groupid and $groupid != $gpid) {
continue;
}
$line = array();
$name = print_group_picture($groups[$gpid], $course->id, false, true, false) . format_string($groups[$gpid]->name);
$description = file_rewrite_pluginfile_urls($groups[$gpid]->description, 'pluginfile.php', $context->id, 'group', 'description', $gpid);
$options = new stdClass;
$options->noclean = true;
$options->overflowdiv = true;
$jsdescription = trim(format_text($description, $groups[$gpid]->descriptionformat, $options));
if (empty($jsdescription)) {
$line[] = $name;
} else {
$line[] = html_writer::tag('span', $name, array('class' => 'group_hoverdescription', 'data-groupid' => $gpid));
$hoverevents[$gpid] = get_string('descriptiona', null, $jsdescription);
}
$viewfullnames = has_capability('moodle/site:viewfullnames', $context);
$fullnames = array();
foreach ($users as $user) {
$fullnames[] = html_writer::link(new moodle_url('/user/view.php', ['id' => $user->id, 'course' => $course->id]),
fullname($user, $viewfullnames));
}
$line[] = implode(', ', $fullnames);
$line[] = count($users);
$table->data[] = $line;
}
if ($groupid and empty($table->data)) {
continue;
}
if ($gpgid < 0) {
// Display 'not in group' for grouping id == OVERVIEW_GROUPING_NO_GROUP.
if ($gpgid == OVERVIEW_GROUPING_NO_GROUP) {
echo $OUTPUT->heading($strnotingroup, 3);
} else {
echo $OUTPUT->heading($strnotingrouping, 3);
}
} else {
echo $OUTPUT->heading($groupings[$gpgid]->formattedname, 3);
$description = file_rewrite_pluginfile_urls($groupings[$gpgid]->description, 'pluginfile.php', $context->id, 'grouping', 'description', $gpgid);
$options = new stdClass;
$options->overflowdiv = true;
echo $OUTPUT->box(format_text($description, $groupings[$gpgid]->descriptionformat, $options), 'generalbox boxwidthnarrow boxaligncenter');
}
echo html_writer::table($table);
$printed = true;
}
if (count($hoverevents)>0) {
$PAGE->requires->string_for_js('description', 'moodle');
$PAGE->requires->js_init_call('M.core_group.init_hover_events', array($hoverevents));
}
echo $OUTPUT->footer();