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Developer Documentation

See Release Notes

  • Bug fixes for general core bugs in 3.10.x will end 8 November 2021 (12 months).
  • Bug fixes for security issues in 3.10.x will end 9 May 2022 (18 months).
  • PHP version: minimum PHP 7.2.0 Note: minimum PHP version has increased since Moodle 3.8. PHP 7.3.x and 7.4.x are supported too.
/group/ -> import.php (source)
<?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/>.

/**
 * Bulk group creation registration script from a comma separated file
 *
 * @copyright 1999 Martin Dougiamas  http://dougiamas.com
 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 * @package core_group
 */

require_once('../config.php');
require_once($CFG->dirroot.'/course/lib.php');
require_once($CFG->dirroot.'/group/lib.php');
include_once('import_form.php');

$id = required_param('id', PARAM_INT);    // Course id

$course = $DB->get_record('course', array('id'=>$id), '*', MUST_EXIST);

$PAGE->set_url('/group/import.php', array('id'=>$id));

require_login($course);
$context = context_course::instance($id);

require_capability('moodle/course:managegroups', $context);

$strimportgroups = get_string('importgroups', 'core_group');

$PAGE->navbar->add($strimportgroups);
navigation_node::override_active_url(new moodle_url('/group/index.php', array('id' => $course->id)));
$PAGE->set_title("$course->shortname: $strimportgroups");
$PAGE->set_heading($course->fullname);
$PAGE->set_pagelayout('admin');

$returnurl = new moodle_url('/group/index.php', array('id'=>$id));

$importform = new groups_import_form(null, ['id' => $id]);

// If a file has been uploaded, then process it
if ($importform->is_cancelled()) {
    redirect($returnurl);

} else if ($formdata = $importform->get_data()) {
    echo $OUTPUT->header();

    $text = $importform->get_file_content('userfile');
    $text = preg_replace('!\r\n?!', "\n", $text);

    require_once($CFG->libdir . '/csvlib.class.php');
    $importid = csv_import_reader::get_new_iid('groupimport');
    $csvimport = new csv_import_reader($importid, 'groupimport');
    $delimiter = $formdata->delimiter_name;
    $encoding = $formdata->encoding;
    $readcount = $csvimport->load_csv_content($text, $encoding, $delimiter);

    if ($readcount === false) {
< print_error('csvfileerror', 'error', $PAGE->url, $csvimport->get_error());
> throw new \moodle_exception('csvfileerror', 'error', $PAGE->url, $csvimport->get_error());
} else if ($readcount == 0) {
< print_error('csvemptyfile', 'error', $PAGE->url, $csvimport->get_error());
> throw new \moodle_exception('csvemptyfile', 'error', $PAGE->url, $csvimport->get_error());
} else if ($readcount == 1) {
< print_error('csvnodata', 'error', $PAGE->url);
> throw new \moodle_exception('csvnodata', 'error', $PAGE->url);
} $csvimport->init(); unset($text); // make arrays of valid fields for error checking $required = array("groupname" => 1); $optionalDefaults = array("lang" => 1); $optional = array("coursename" => 1, "idnumber" => 1, "groupidnumber" => 1, "description" => 1, "enrolmentkey" => 1, "groupingname" => 1, "enablemessaging" => 1, ); // --- get header (field names) --- // Using get_columns() ensures the Byte Order Mark is removed. $header = $csvimport->get_columns(); // check for valid field names foreach ($header as $i => $h) { $h = trim($h); $header[$i] = $h; // remove whitespace if (!(isset($required[$h]) or isset($optionalDefaults[$h]) or isset($optional[$h]))) {
< print_error('invalidfieldname', 'error', $PAGE->url, $h);
> throw new \moodle_exception('invalidfieldname', 'error', $PAGE->url, $h);
} if (isset($required[$h])) { $required[$h] = 2; } } // check for required fields foreach ($required as $key => $value) { if ($value < 2) {
< print_error('fieldrequired', 'error', $PAGE->url, $key);
> throw new \moodle_exception('fieldrequired', 'error', $PAGE->url, $key);
} } $linenum = 2; // since header is line 1 while ($line = $csvimport->next()) { $newgroup = new stdClass();//to make Martin happy foreach ($optionalDefaults as $key => $value) { $newgroup->$key = current_language(); //defaults to current language } foreach ($line as $key => $value) { $record[$header[$key]] = trim($value); } if (trim(implode($line)) !== '') { // add a new group to the database // add fields to object $user foreach ($record as $name => $value) { // check for required values if (isset($required[$name]) and !$value) {
< print_error('missingfield', 'error', $PAGE->url, $name);
> throw new \moodle_exception('missingfield', 'error', $PAGE->url, $name);
} else if ($name == "groupname") { $newgroup->name = $value; } else { // normal entry $newgroup->{$name} = $value; } } if (isset($newgroup->idnumber) && strlen($newgroup->idnumber)) { //if idnumber is set, we use that. //unset invalid courseid if (!$mycourse = $DB->get_record('course', array('idnumber'=>$newgroup->idnumber))) { echo $OUTPUT->notification(get_string('unknowncourseidnumber', 'error', $newgroup->idnumber)); unset($newgroup->courseid);//unset so 0 doesn't get written to database } else { $newgroup->courseid = $mycourse->id; } } else if (isset($newgroup->coursename) && strlen($newgroup->coursename)) { //else use course short name to look up //unset invalid coursename (if no id) if (!$mycourse = $DB->get_record('course', array('shortname' => $newgroup->coursename))) { echo $OUTPUT->notification(get_string('unknowncourse', 'error', $newgroup->coursename)); unset($newgroup->courseid);//unset so 0 doesn't get written to database } else { $newgroup->courseid = $mycourse->id; } } else { //else use use current id $newgroup->courseid = $id; } unset($newgroup->idnumber); unset($newgroup->coursename); //if courseid is set if (isset($newgroup->courseid)) { $linenum++; $groupname = $newgroup->name; $newgrpcoursecontext = context_course::instance($newgroup->courseid); ///Users cannot upload groups in courses they cannot update. if (!has_capability('moodle/course:managegroups', $newgrpcoursecontext) or (!is_enrolled($newgrpcoursecontext) and !has_capability('moodle/course:view', $newgrpcoursecontext))) { echo $OUTPUT->notification(get_string('nopermissionforcreation', 'group', $groupname)); } else { if (isset($newgroup->groupidnumber)) { // The CSV field for the group idnumber is groupidnumber rather than // idnumber as that field is already in use for the course idnumber. $newgroup->groupidnumber = trim($newgroup->groupidnumber); if (has_capability('moodle/course:changeidnumber', $newgrpcoursecontext)) { $newgroup->idnumber = $newgroup->groupidnumber; if ($existing = groups_get_group_by_idnumber($newgroup->courseid, $newgroup->idnumber)) { // idnumbers must be unique to a course but we shouldn't ignore group creation for duplicates $existing->name = s($existing->name); $existing->idnumber = s($existing->idnumber); $existing->problemgroup = $groupname; echo $OUTPUT->notification(get_string('groupexistforcoursewithidnumber', 'error', $existing)); unset($newgroup->idnumber); } } // Always drop the groupidnumber key. It's not a valid database field unset($newgroup->groupidnumber); } if ($groupid = groups_get_group_by_name($newgroup->courseid, $groupname)) { echo $OUTPUT->notification("$groupname :".get_string('groupexistforcourse', 'error', $groupname)); } else if ($groupid = groups_create_group($newgroup)) { echo $OUTPUT->notification(get_string('groupaddedsuccesfully', 'group', $groupname), 'notifysuccess'); } else { echo $OUTPUT->notification(get_string('groupnotaddederror', 'error', $groupname)); continue; } // Add group to grouping if (isset($newgroup->groupingname) && strlen($newgroup->groupingname)) { $groupingname = $newgroup->groupingname; if (! $groupingid = groups_get_grouping_by_name($newgroup->courseid, $groupingname)) { $data = new stdClass(); $data->courseid = $newgroup->courseid; $data->name = $groupingname; if ($groupingid = groups_create_grouping($data)) { echo $OUTPUT->notification(get_string('groupingaddedsuccesfully', 'group', $groupingname), 'notifysuccess'); } else { echo $OUTPUT->notification(get_string('groupingnotaddederror', 'error', $groupingname)); continue; } } // if we have reached here we definitely have a groupingid $a = array('groupname' => $groupname, 'groupingname' => $groupingname); try { groups_assign_grouping($groupingid, $groupid); echo $OUTPUT->notification(get_string('groupaddedtogroupingsuccesfully', 'group', $a), 'notifysuccess'); } catch (Exception $e) { echo $OUTPUT->notification(get_string('groupnotaddedtogroupingerror', 'error', $a)); } } } } unset ($newgroup); } } $csvimport->close(); echo $OUTPUT->single_button($returnurl, get_string('continue'), 'get'); echo $OUTPUT->footer(); die; } /// Print the form echo $OUTPUT->header(); echo $OUTPUT->heading_with_help($strimportgroups, 'importgroups', 'core_group'); $importform->display(); echo $OUTPUT->footer();