grantextension.php

<?php
// This file is part of mod_publication for Moodle - http://moodle.org/
//
// It 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.
//
// It 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/>.

/**
 * Displays the form for granting extensions for student's submissions!
 *
 * @package       mod_publication
 * @author        Philipp Hager
 * @author        Andreas Windbichler
 * @copyright     2014 Academic Moodle Cooperation {@link http://www.academic-moodle-cooperation.org}
 * @license       http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
 */

require_once('../../config.php');

global $CFG, $DB, $OUTPUT, $PAGE;

require_once($CFG->dirroot . '/mod/publication/locallib.php');
require_once($CFG->dirroot . '/mod/publication/mod_publication_grantextension_form.php');

$id = optional_param('id', 0, PARAM_INT); // Course Module ID.
$userids = required_param_array('userids', PARAM_INT); // User id.

$url = new moodle_url('/mod/publication/grantextension.php', ['id' => $id]);
if (!$cm = get_coursemodule_from_id('publication', $id, 0, false, MUST_EXIST)) {
    print_error('invalidcoursemodule');
}

if (!$course = $DB->get_record('course', ['id' => $cm->course], '*', MUST_EXIST)) {
    print_error('coursemisconf');
}

require_login($course, false, $cm);

$context = context_module::instance($cm->id);

require_capability('mod/publication:grantextension', $context);

$publication = new publication($cm, $course, $context);

$url = new moodle_url('/mod/publication/grantextension.php', ['cmid' => $cm->id]);
if (!empty($id)) {
    $url->param('id', $id);
}

$PAGE->set_url($url);

// Create a new form object.
$mform = new mod_publication_grantextension_form(null,
        ['publication' => $publication, 'userids' => $userids]);

if ($mform->is_cancelled()) {
    redirect(new moodle_url('/mod/publication/view.php', ['id' => $cm->id]));

} else if ($data = $mform->get_data()) {
    // Store updated set of files.
    $dataobject = [];
    $dataobject['publication'] = $publication->get_instance()->id;

    foreach ($data->userids as $uid) {
        $dataobject['userid'] = $uid;

        $DB->delete_records('publication_extduedates', $dataobject);

        if ($data->extensionduedate > 0) {
            // Create new record.
            $dataobject['extensionduedate'] = $data->extensionduedate;
            \mod_publication\event\publication_duedate_extended::duedate_extended($cm, $dataobject)->trigger();
            $DB->insert_record('publication_extduedates', (object)$dataobject);
        }
    }

    redirect(new moodle_url('/mod/publication/view.php', ['id' => $cm->id]));
}

// Load existing files into draft area.

echo $OUTPUT->header();

$mform->display();

echo $OUTPUT->footer();