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addltiepisode.php
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addltiepisode.php
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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/>.
/**
* Allows teachers to add a LTI activity for a video.
*
* @package block_opencast
* @copyright 2020 Alexander Bias, Ulm University <alexander.bias@uni-ulm.de>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once('../../config.php');
global $PAGE, $OUTPUT, $CFG;
// Handle submitted parameters of the form.
$episodeuuid = required_param('episodeuuid', PARAM_ALPHANUMEXT);
$courseid = required_param('courseid', PARAM_INT);
$submitbutton2 = optional_param('submitbutton2', '', PARAM_ALPHA);
$ocinstanceid = optional_param('ocinstanceid', \tool_opencast\local\settings_api::get_default_ocinstance()->id, PARAM_INT);
// Set base URL.
$baseurl = new moodle_url('/blocks/opencast/addltiepisode.php',
array('episodeuuid' => $episodeuuid, 'courseid' => $courseid, 'ocinstanceid' => $ocinstanceid));
$PAGE->set_url($baseurl);
// Remember URLs for redirecting.
$redirecturloverview = new moodle_url('/blocks/opencast/index.php',
array('courseid' => $courseid, 'ocinstanceid' => $ocinstanceid));
$redirecturlcourse = new moodle_url('/course/view.php', array('id' => $courseid));
$redirecturlcancel = $redirecturloverview;
// Require login and course membership.
require_login($courseid, false);
// Set page and navbar properties.
$PAGE->set_pagelayout('incourse');
$PAGE->set_title(get_string('pluginname', 'block_opencast'));
$PAGE->set_heading(get_string('pluginname', 'block_opencast'));
$PAGE->navbar->add(get_string('pluginname', 'block_opencast'), $redirecturloverview);
$PAGE->navbar->add(get_string('addltiepisode_addicontitle', 'block_opencast'), $baseurl);
// Check if the LTI module feature is enabled and working.
if (\block_opencast\local\ltimodulemanager::is_enabled_and_working_for_episodes($ocinstanceid) == false) {
throw new moodle_exception('addltiepisode_errornotenabledorworking', 'block_opencast', $redirecturloverview);
}
// Capability check.
$coursecontext = context_course::instance($courseid);
require_capability('block/opencast:addltiepisode', $coursecontext);
// Existing LTI module check.
$moduleid = \block_opencast\local\ltimodulemanager::get_module_for_episode($ocinstanceid, $courseid, $episodeuuid);
if ($moduleid) {
// Redirect to Opencast videos overview page.
redirect($redirecturloverview,
get_string('addltiepisode_moduleexists', 'block_opencast'), null, \core\output\notification::NOTIFY_WARNING);
}
// Use Add LTI form.
$addltiform = new \block_opencast\local\addltiepisode_form(null,
array('episodeuuid' => $episodeuuid, 'courseid' => $courseid, 'ocinstanceid' => $ocinstanceid));
// Redirect if the form was cancelled.
if ($addltiform->is_cancelled()) {
redirect($redirecturloverview);
}
// Process data.
if ($data = $addltiform->get_data()) {
// Verify again that we have a title. If not, use the default title.
if (!$data->title) {
$data->title = get_string('addltiepisode_defaulttitle', 'block_opencast');
}
// If the intro feature is disabled or if we do not have an intro, use an empty string as intro.
if (get_config('block_opencast', 'addltiepisodeintro_' . $ocinstanceid) != true || !isset($data->intro) || !$data->intro) {
$introtext = '';
$introformat = FORMAT_HTML;
// Otherwise.
} else {
$introtext = $data->intro['text'];
$introformat = $data->intro['format'];
}
// If the section feature is disabled or if we do not have an intro, use the default section.
if (get_config('block_opencast', 'addltiepisodesection_' . $ocinstanceid) != true ||
!isset($data->section) || !$data->section) {
$sectionid = 0;
// Otherwise.
} else {
$sectionid = $data->section;
}
// If the availability feature is disabled or if we do not have an availability given, use null.
if (get_config('block_opencast', 'addltiepisodeavailability_' . $ocinstanceid) != true || empty($CFG->enableavailability) ||
!isset($data->availabilityconditionsjson) || !$data->availabilityconditionsjson) {
$availability = null;
// Otherwise.
} else {
$availability = $data->availabilityconditionsjson;
}
// Create the module.
$result = \block_opencast\local\ltimodulemanager::create_module_for_episode($ocinstanceid, $courseid,
$data->title, $episodeuuid, $sectionid, $introtext, $introformat, $availability);
// Check if the module was created successfully.
if ($result == true) {
// Form was submitted with second submit button.
if ($submitbutton2) {
// Redirect to course overview.
redirect($redirecturlcourse,
get_string('addltiepisode_modulecreated', 'block_opencast', $data->title),
null,
\core\output\notification::NOTIFY_SUCCESS);
// Form was submitted with first submit button.
} else {
// Redirect to Opencast videos overview page.
redirect($redirecturloverview,
get_string('addltiepisode_modulecreated', 'block_opencast', $data->title),
null,
\core\output\notification::NOTIFY_SUCCESS);
}
// Otherwise.
} else {
// Redirect to Opencast videos overview page.
redirect($redirecturloverview,
get_string('addltiepisode_modulenotcreated', 'block_opencast', $data->title),
null,
\core\output\notification::NOTIFY_ERROR);
}
}
// Output the page header.
echo $OUTPUT->header();
// Output heading.
echo $OUTPUT->heading(get_string('addltiepisode_addicontitle', 'block_opencast'));
// Output the form.
$addltiform->display();
// Output the page footer.
echo $OUTPUT->footer();