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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/>.
/**
* Lists all the users within a given course.
*
* @copyright 1999 Martin Dougiamas http://dougiamas.com
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
* @package core_user
*/
require_once('../config.php');
require_once($CFG->dirroot.'/user/lib.php');
require_once($CFG->dirroot.'/course/lib.php');
require_once($CFG->dirroot.'/notes/lib.php');
require_once($CFG->libdir.'/tablelib.php');
require_once($CFG->libdir.'/filelib.php');
require_once($CFG->dirroot.'/enrol/locallib.php');
define('DEFAULT_PAGE_SIZE', 20);
define('SHOW_ALL_PAGE_SIZE', 5000);
$page = optional_param('page', 0, PARAM_INT); // Which page to show.
$perpage = optional_param('perpage', DEFAULT_PAGE_SIZE, PARAM_INT); // How many per page.
$contextid = optional_param('contextid', 0, PARAM_INT); // One of this or.
$courseid = optional_param('id', 0, PARAM_INT); // This are required.
$newcourse = optional_param('newcourse', false, PARAM_BOOL);
$selectall = optional_param('selectall', false, PARAM_BOOL); // When rendering checkboxes against users mark them all checked.
$roleid = optional_param('roleid', 0, PARAM_INT);
$groupparam = optional_param('group', 0, PARAM_INT);
$PAGE->set_url('/user/index.php', array(
'page' => $page,
'perpage' => $perpage,
'contextid' => $contextid,
'id' => $courseid,
'newcourse' => $newcourse));
if ($contextid) {
$context = context::instance_by_id($contextid, MUST_EXIST);
if ($context->contextlevel != CONTEXT_COURSE) {
print_error('invalidcontext');
}
$course = $DB->get_record('course', array('id' => $context->instanceid), '*', MUST_EXIST);
} else {
$course = $DB->get_record('course', array('id' => $courseid), '*', MUST_EXIST);
$context = context_course::instance($course->id, MUST_EXIST);
}
// Not needed anymore.
unset($contextid);
unset($courseid);
require_login($course);
$systemcontext = context_system::instance();
$isfrontpage = ($course->id == SITEID);
$frontpagectx = context_course::instance(SITEID);
if ($isfrontpage) {
$PAGE->set_pagelayout('admin');
course_require_view_participants($systemcontext);
} else {
$PAGE->set_pagelayout('incourse');
course_require_view_participants($context);
}
// Trigger events.
user_list_view($course, $context);
$bulkoperations = has_capability('moodle/course:bulkmessaging', $context);
$PAGE->set_title("$course->shortname: ".get_string('participants'));
$PAGE->set_heading($course->fullname);
$PAGE->set_pagetype('course-view-' . $course->format);
$PAGE->add_body_class('path-user'); // So we can style it independently.
$PAGE->set_other_editing_capability('moodle/course:manageactivities');
// Expand the users node in the settings navigation when it exists because those pages
// are related to this one.
$node = $PAGE->settingsnav->find('users', navigation_node::TYPE_CONTAINER);
if ($node) {
$node->force_open();
}
echo $OUTPUT->header();
echo $OUTPUT->heading(get_string('participants'));
// Get the currently applied filters.
$filtersapplied = optional_param_array('unified-filters', [], PARAM_NOTAGS);
$filterwassubmitted = optional_param('unified-filter-submitted', 0, PARAM_BOOL);
// If they passed a role make sure they can view that role.
if ($roleid) {
$viewableroles = get_profile_roles($context);
// Check if the user can view this role.
if (array_key_exists($roleid, $viewableroles)) {
$filtersapplied[] = USER_FILTER_ROLE . ':' . $roleid;
} else {
$roleid = 0;
}
}
// Default group ID.
$groupid = false;
$canaccessallgroups = has_capability('moodle/site:accessallgroups', $context);
if ($course->groupmode != NOGROUPS) {
if ($canaccessallgroups) {
// Change the group if the user can access all groups and has specified group in the URL.
if ($groupparam) {
$groupid = $groupparam;
}
} else {
// Otherwise, get the user's default group.
$groupid = groups_get_course_group($course, true);
if ($course->groupmode == SEPARATEGROUPS && !$groupid) {
// The user is not in the group so show message and exit.
echo $OUTPUT->notification(get_string('notingroup'));
echo $OUTPUT->footer();
exit;
}
}
}
$hasgroupfilter = false;
$lastaccess = 0;
$searchkeywords = [];
$enrolid = 0;
$status = -1;
foreach ($filtersapplied as $filter) {
$filtervalue = explode(':', $filter, 2);
$value = null;
if (count($filtervalue) == 2) {
$key = clean_param($filtervalue[0], PARAM_INT);
$value = clean_param($filtervalue[1], PARAM_INT);
} else {
// Search string.
$key = USER_FILTER_STRING;
$value = clean_param($filtervalue[0], PARAM_TEXT);
}
switch ($key) {
case USER_FILTER_ENROLMENT:
$enrolid = $value;
break;
case USER_FILTER_GROUP:
$groupid = $value;
$hasgroupfilter = true;
break;
case USER_FILTER_LAST_ACCESS:
$lastaccess = $value;
break;
case USER_FILTER_ROLE:
$roleid = $value;
break;
case USER_FILTER_STATUS:
// We only accept active/suspended statuses.
if ($value == ENROL_USER_ACTIVE || $value == ENROL_USER_SUSPENDED) {
$status = $value;
}
break;
default:
// Search string.
$searchkeywords[] = $value;
break;
}
}
// If course supports groups we may need to set a default.
if (!empty($groupid)) {
if ($canaccessallgroups) {
// User can access all groups, let them filter by whatever was selected.
$filtersapplied[] = USER_FILTER_GROUP . ':' . $groupid;
} else if (!$filterwassubmitted && $course->groupmode == VISIBLEGROUPS) {
// If we are in a course with visible groups and the user has not submitted anything and does not have
// access to all groups, then set a default group.
$filtersapplied[] = USER_FILTER_GROUP . ':' . $groupid;
} else if (!$hasgroupfilter && $course->groupmode != VISIBLEGROUPS) {
// The user can't access all groups and has not set a group filter in a course where the groups are not visible
// then apply a default group filter.
$filtersapplied[] = USER_FILTER_GROUP . ':' . $groupid;
} else if (!$hasgroupfilter) { // No need for the group id to be set.
$groupid = false;
}
}
if ($groupid > 0 && ($course->groupmode != SEPARATEGROUPS || $canaccessallgroups)) {
$grouprenderer = $PAGE->get_renderer('core_group');
$groupdetailpage = new \core_group\output\group_details($groupid);
echo $grouprenderer->group_details($groupdetailpage);
}
// Manage enrolments.
$manager = new course_enrolment_manager($PAGE, $course);
$enrolbuttons = $manager->get_manual_enrol_buttons();
$enrolrenderer = $PAGE->get_renderer('core_enrol');
$enrolbuttonsout = '';
foreach ($enrolbuttons as $enrolbutton) {
$enrolbuttonsout .= $enrolrenderer->render($enrolbutton);
}
echo html_writer::div($enrolbuttonsout, 'float-right');
// Should use this variable so that we don't break stuff every time a variable is added or changed.
$baseurl = new moodle_url('/user/index.php', array(
'contextid' => $context->id,
'id' => $course->id,
'perpage' => $perpage));
// Render the unified filter.
$renderer = $PAGE->get_renderer('core_user');
echo $renderer->unified_filter($course, $context, $filtersapplied, $baseurl);
echo '<div class="userlist">';
// Add filters to the baseurl after creating unified_filter to avoid losing them.
foreach (array_unique($filtersapplied) as $filterix => $filter) {
$baseurl->param('unified-filters[' . $filterix . ']', $filter);
}
$participanttable = new \core_user\participants_table($course->id, $groupid, $lastaccess, $roleid, $enrolid, $status,
$searchkeywords, $bulkoperations, $selectall);
$participanttable->define_baseurl($baseurl);
// Do this so we can get the total number of rows.
ob_start();
$participanttable->out($perpage, true);
$participanttablehtml = ob_get_contents();
ob_end_clean();
echo html_writer::tag('p', get_string('participantscount', 'moodle', $participanttable->totalrows));
if ($bulkoperations) {
echo '<form action="action_redir.php" method="post" id="participantsform">';
echo '<div>';
echo '<input type="hidden" name="sesskey" value="'.sesskey().'" />';
echo '<input type="hidden" name="returnto" value="'.s($PAGE->url->out(false)).'" />';
}
echo $participanttablehtml;
$perpageurl = clone($baseurl);
$perpageurl->remove_params('perpage');
if ($perpage == SHOW_ALL_PAGE_SIZE && $participanttable->totalrows > DEFAULT_PAGE_SIZE) {
$perpageurl->param('perpage', DEFAULT_PAGE_SIZE);
echo $OUTPUT->container(html_writer::link($perpageurl, get_string('showperpage', '', DEFAULT_PAGE_SIZE)), array(), 'showall');
} else if ($participanttable->get_page_size() < $participanttable->totalrows) {
$perpageurl->param('perpage', SHOW_ALL_PAGE_SIZE);
echo $OUTPUT->container(html_writer::link($perpageurl, get_string('showall', '', $participanttable->totalrows)),
array(), 'showall');
}
if ($bulkoperations) {
echo '<br /><div class="buttons"><div class="form-inline">';
if ($participanttable->get_page_size() < $participanttable->totalrows) {
$perpageurl = clone($baseurl);
$perpageurl->remove_params('perpage');
$perpageurl->param('perpage', SHOW_ALL_PAGE_SIZE);
$perpageurl->param('selectall', true);
$showalllink = $perpageurl;
} else {
$showalllink = false;
}
echo html_writer::start_tag('div', array('class' => 'btn-group'));
if ($participanttable->get_page_size() < $participanttable->totalrows) {
// Select all users, refresh page showing all users and mark them all selected.
$label = get_string('selectalluserswithcount', 'moodle', $participanttable->totalrows);
echo html_writer::empty_tag('input', array('type' => 'button', 'id' => 'checkall', 'class' => 'btn btn-secondary',
'value' => $label, 'data-showallink' => $showalllink));
}
echo html_writer::end_tag('div');
$displaylist = array();
if (!empty($CFG->messaging) && has_all_capabilities(['moodle/site:sendmessage', 'moodle/course:bulkmessaging'], $context)) {
$displaylist['#messageselect'] = get_string('messageselectadd');
}
if (!empty($CFG->enablenotes) && has_capability('moodle/notes:manage', $context) && $context->id != $frontpagectx->id) {
$displaylist['#addgroupnote'] = get_string('addnewnote', 'notes');
}
$params = ['operation' => 'download_participants'];
$downloadoptions = [];
$formats = core_plugin_manager::instance()->get_plugins_of_type('dataformat');
foreach ($formats as $format) {
if ($format->is_enabled()) {
$params = ['operation' => 'download_participants', 'dataformat' => $format->name];
$url = new moodle_url('bulkchange.php', $params);
$downloadoptions[$url->out(false)] = get_string('dataformat', $format->component);
}
}
if (!empty($downloadoptions)) {
$displaylist[] = [get_string('downloadas', 'table') => $downloadoptions];
}
if ($context->id != $frontpagectx->id) {
$instances = $manager->get_enrolment_instances();
$plugins = $manager->get_enrolment_plugins(false);
foreach ($instances as $key => $instance) {
if (!isset($plugins[$instance->enrol])) {
// Weird, some broken stuff in plugin.
continue;
}
$plugin = $plugins[$instance->enrol];
$bulkoperations = $plugin->get_bulk_operations($manager);
$pluginoptions = [];
foreach ($bulkoperations as $key => $bulkoperation) {
$params = ['plugin' => $plugin->get_name(), 'operation' => $key];
$url = new moodle_url('bulkchange.php', $params);
$pluginoptions[$url->out(false)] = $bulkoperation->get_title();
}
if (!empty($pluginoptions)) {
$name = get_string('pluginname', 'enrol_' . $plugin->get_name());
$displaylist[] = [$name => $pluginoptions];
}
}
}
$selectactionparams = array(
'id' => 'formactionid',
'class' => 'ml-2',
'data-action' => 'toggle',
'data-togglegroup' => 'participants-table',
'data-toggle' => 'action',
'disabled' => empty($selectall)
);
$label = html_writer::tag('label', get_string("withselectedusers"),
['for' => 'formactionid', 'class' => 'col-form-label d-inline']);
$select = html_writer::select($displaylist, 'formaction', '', ['' => 'choosedots'], $selectactionparams);
echo html_writer::tag('div', $label . $select);
echo '<input type="hidden" name="id" value="' . $course->id . '" />';
echo '</div></div></div>';
echo '</form>';
$options = new stdClass();
$options->courseid = $course->id;
$options->noteStateNames = note_get_state_names();
$options->stateHelpIcon = $OUTPUT->help_icon('publishstate', 'notes');
$PAGE->requires->js_call_amd('core_user/participants', 'init', [$options]);
}
echo '</div>'; // Userlist.
$enrolrenderer = $PAGE->get_renderer('core_enrol');
echo '<div class="float-right">';
// Need to re-generate the buttons to avoid having elements with duplicate ids on the page.
$enrolbuttons = $manager->get_manual_enrol_buttons();
foreach ($enrolbuttons as $enrolbutton) {
echo $enrolrenderer->render($enrolbutton);
}
echo '</div>';
if ($newcourse == 1) {
$str = get_string('proceedtocourse', 'enrol');
// The margin is to make it line up with the enrol users button when they are both on the same line.
$classes = 'my-1';
$url = course_get_url($course);
echo $OUTPUT->single_button($url, $str, 'GET', array('class' => $classes));
}
echo $OUTPUT->footer();