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260 lines
11 KiB
260 lines
11 KiB
2 years ago
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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* This page prints a particular instance of lesson
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*
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* @package mod_lesson
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* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or late
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**/
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define('NO_OUTPUT_BUFFERING', true);
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require_once(__DIR__ . '/../../config.php');
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require_once($CFG->dirroot.'/mod/lesson/locallib.php');
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require_once($CFG->libdir . '/grade/constants.php');
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$id = required_param('id', PARAM_INT); // Course Module ID
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$pageid = optional_param('pageid', null, PARAM_INT); // Lesson Page ID
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$edit = optional_param('edit', -1, PARAM_BOOL);
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$userpassword = optional_param('userpassword','',PARAM_RAW);
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$backtocourse = optional_param('backtocourse', false, PARAM_RAW);
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$cm = get_coursemodule_from_id('lesson', $id, 0, false, MUST_EXIST);
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$course = $DB->get_record('course', array('id' => $cm->course), '*', MUST_EXIST);
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$lesson = new lesson($DB->get_record('lesson', array('id' => $cm->instance), '*', MUST_EXIST), $cm, $course);
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require_login($course, false, $cm);
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if ($backtocourse) {
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redirect(new moodle_url('/course/view.php', array('id'=>$course->id)));
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}
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// Apply overrides.
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$lesson->update_effective_access($USER->id);
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$url = new moodle_url('/mod/lesson/view.php', array('id'=>$id));
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if ($pageid !== null) {
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$url->param('pageid', $pageid);
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}
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$PAGE->set_url($url);
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$PAGE->force_settings_menu();
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$context = $lesson->context;
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$canmanage = $lesson->can_manage();
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$lessonoutput = $PAGE->get_renderer('mod_lesson');
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$reviewmode = $lesson->is_in_review_mode();
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if ($lesson->usepassword && !empty($userpassword)) {
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require_sesskey();
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}
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// Check these for students only TODO: Find a better method for doing this!
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if ($timerestriction = $lesson->get_time_restriction_status()) { // Deadline restrictions.
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echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('notavailable'));
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echo $lessonoutput->lesson_inaccessible(get_string($timerestriction->reason, 'lesson', userdate($timerestriction->time)));
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echo $lessonoutput->footer();
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exit();
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} else if ($passwordrestriction = $lesson->get_password_restriction_status($userpassword)) { // Password protected lesson code.
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echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('passwordprotectedlesson', 'lesson', format_string($lesson->name)));
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echo $lessonoutput->login_prompt($lesson, $userpassword !== '');
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echo $lessonoutput->footer();
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exit();
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} else if ($dependenciesrestriction = $lesson->get_dependencies_restriction_status()) { // Check for dependencies.
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echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('completethefollowingconditions', 'lesson', format_string($lesson->name)));
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echo $lessonoutput->dependancy_errors($dependenciesrestriction->dependentlesson, $dependenciesrestriction->errors);
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echo $lessonoutput->footer();
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exit();
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}
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// This is called if a student leaves during a lesson.
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if ($pageid == LESSON_UNSEENBRANCHPAGE) {
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$pageid = lesson_unseen_question_jump($lesson, $USER->id, $pageid);
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}
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// To avoid multiple calls, store the magic property firstpage.
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$lessonfirstpage = $lesson->firstpage;
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$lessonfirstpageid = $lessonfirstpage ? $lessonfirstpage->id : false;
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// display individual pages and their sets of answers
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// if pageid is EOL then the end of the lesson has been reached
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// for flow, changed to simple echo for flow styles, michaelp, moved lesson name and page title down
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$attemptflag = false;
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if (empty($pageid)) {
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// make sure there are pages to view
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if (!$lessonfirstpageid) {
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if (!$canmanage) {
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$lesson->add_message(get_string('lessonnotready2', 'lesson')); // a nice message to the student
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} else {
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if (!$DB->count_records('lesson_pages', array('lessonid'=>$lesson->id))) {
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redirect("$CFG->wwwroot/mod/lesson/edit.php?id=$cm->id"); // no pages - redirect to add pages
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} else {
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$lesson->add_message(get_string('lessonpagelinkingbroken', 'lesson')); // ok, bad mojo
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}
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}
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}
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// if no pageid given see if the lesson has been started
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$retries = $lesson->count_user_retries($USER->id);
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if ($retries > 0) {
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$attemptflag = true;
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}
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if (isset($USER->modattempts[$lesson->id])) {
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unset($USER->modattempts[$lesson->id]); // if no pageid, then student is NOT reviewing
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}
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$lastpageseen = $lesson->get_last_page_seen($retries);
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// Check if the lesson was attempted in an external device like the mobile app.
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// This check makes sense only when the lesson allows offline attempts.
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if ($lesson->allowofflineattempts && $timers = $lesson->get_user_timers($USER->id, 'starttime DESC', '*', 0, 1)) {
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$timer = current($timers);
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if (!empty($timer->timemodifiedoffline)) {
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$lasttime = format_time(time() - $timer->timemodifiedoffline);
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$lesson->add_message(get_string('offlinedatamessage', 'lesson', $lasttime), 'warning');
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}
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}
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// Check to see if end of lesson was reached.
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if (($lastpageseen !== false && ($lastpageseen != LESSON_EOL))) {
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// End not reached. Check if the user left.
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if ($lesson->left_during_timed_session($retries)) {
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echo $lessonoutput->header($lesson, $cm, '', false, null, get_string('leftduringtimedsession', 'lesson'));
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if ($lesson->timelimit) {
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if ($lesson->retake) {
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$continuelink = new single_button(new moodle_url('/mod/lesson/view.php',
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array('id' => $cm->id, 'pageid' => $lesson->firstpageid, 'startlastseen' => 'no')),
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get_string('continue', 'lesson'), 'get');
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echo html_writer::div($lessonoutput->message(get_string('leftduringtimed', 'lesson'), $continuelink),
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'center leftduring');
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} else {
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$courselink = new single_button(new moodle_url('/course/view.php',
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array('id' => $PAGE->course->id)), get_string('returntocourse', 'lesson'), 'get');
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echo html_writer::div($lessonoutput->message(get_string('leftduringtimednoretake', 'lesson'), $courselink),
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'center leftduring');
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}
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} else {
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echo $lessonoutput->continue_links($lesson, $lastpageseen);
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}
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echo $lessonoutput->footer();
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exit();
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}
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}
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if ($attemptflag) {
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if (!$lesson->retake) {
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echo $lessonoutput->header($lesson, $cm, 'view', '', null, get_string("noretake", "lesson"));
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$courselink = new single_button(new moodle_url('/course/view.php', array('id'=>$PAGE->course->id)), get_string('returntocourse', 'lesson'), 'get');
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echo $lessonoutput->message(get_string("noretake", "lesson"), $courselink);
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echo $lessonoutput->footer();
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exit();
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}
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}
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// start at the first page
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if (!$pageid = $lessonfirstpageid) {
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echo $lessonoutput->header($lesson, $cm, 'view', '', null);
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// Lesson currently has no content. A message for display has been prepared and will be displayed by the header method
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// of the lesson renderer.
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echo $lessonoutput->footer();
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exit();
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}
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/// This is the code for starting a timed test
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if(!isset($USER->startlesson[$lesson->id]) && !$canmanage) {
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$lesson->start_timer();
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}
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}
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$currenttab = 'view';
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$extraeditbuttons = false;
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$lessonpageid = null;
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$timer = null;
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if ($pageid != LESSON_EOL) {
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$lesson->set_module_viewed();
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$timer = null;
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// This is the code updates the lessontime for a timed test.
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$startlastseen = optional_param('startlastseen', '', PARAM_ALPHA);
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// Check to see if the user can see the left menu.
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if (!$canmanage) {
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$lesson->displayleft = lesson_displayleftif($lesson);
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$continue = ($startlastseen !== '');
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$restart = ($continue && $startlastseen == 'yes');
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$timer = $lesson->update_timer($continue, $restart);
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// Check time limit.
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if (!$lesson->check_time($timer)) {
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redirect(new moodle_url('/mod/lesson/view.php', array('id' => $cm->id, 'pageid' => LESSON_EOL, 'outoftime' => 'normal')));
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die; // Shouldn't be reached, but make sure.
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}
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}
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list($newpageid, $page, $lessoncontent) = $lesson->prepare_page_and_contents($pageid, $lessonoutput, $reviewmode);
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if (($edit != -1) && $PAGE->user_allowed_editing()) {
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$USER->editing = $edit;
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}
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$PAGE->set_subpage($page->id);
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$currenttab = 'view';
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$extraeditbuttons = true;
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$lessonpageid = $page->id;
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$extrapagetitle = $page->title;
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lesson_add_fake_blocks($PAGE, $cm, $lesson, $timer);
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echo $lessonoutput->header($lesson, $cm, $currenttab, $extraeditbuttons, $lessonpageid, $extrapagetitle);
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if ($attemptflag) {
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// We are using level 3 header because attempt heading is a sub-heading of lesson title (MDL-30911).
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echo $OUTPUT->heading(get_string('attempt', 'lesson', $retries), 3);
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}
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// This calculates and prints the ongoing score.
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if ($lesson->ongoing && !empty($pageid) && !$reviewmode) {
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echo $lessonoutput->ongoing_score($lesson);
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}
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if ($lesson->displayleft) {
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echo '<a name="maincontent" id="maincontent" title="' . get_string('anchortitle', 'lesson') . '"></a>';
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}
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echo $lessoncontent;
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echo $lessonoutput->progress_bar($lesson);
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echo $lessonoutput->footer();
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} else {
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// End of lesson reached work out grade.
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// Used to check to see if the student ran out of time.
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$outoftime = optional_param('outoftime', '', PARAM_ALPHA);
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$data = $lesson->process_eol_page($outoftime);
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$lessoncontent = $lessonoutput->display_eol_page($lesson, $data);
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lesson_add_fake_blocks($PAGE, $cm, $lesson, $timer);
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echo $lessonoutput->header($lesson, $cm, $currenttab, $extraeditbuttons, $lessonpageid, get_string("congratulations", "lesson"));
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echo $lessoncontent;
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echo $lessonoutput->footer();
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}
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