/course/view.php
PHP | 303 lines | 202 code | 49 blank | 52 comment | 70 complexity | 9983b3606fc4e300a1ba021cc4b83bf1 MD5 | raw file
- <?php
- // Display the course home page.
- require_once('../config.php');
- require_once('lib.php');
- require_once($CFG->libdir.'/completionlib.php');
- $id = optional_param('id', 0, PARAM_INT);
- $name = optional_param('name', '', PARAM_TEXT);
- $edit = optional_param('edit', -1, PARAM_BOOL);
- $hide = optional_param('hide', 0, PARAM_INT);
- $show = optional_param('show', 0, PARAM_INT);
- $idnumber = optional_param('idnumber', '', PARAM_RAW);
- $sectionid = optional_param('sectionid', 0, PARAM_INT);
- $section = optional_param('section', 0, PARAM_INT);
- $move = optional_param('move', 0, PARAM_INT);
- $marker = optional_param('marker',-1 , PARAM_INT);
- $switchrole = optional_param('switchrole',-1, PARAM_INT); // Deprecated, use course/switchrole.php instead.
- $return = optional_param('return', 0, PARAM_LOCALURL);
- $params = array();
- if (!empty($name)) {
- $params = array('shortname' => $name);
- } else if (!empty($idnumber)) {
- $params = array('idnumber' => $idnumber);
- } else if (!empty($id)) {
- $params = array('id' => $id);
- }else {
- print_error('unspecifycourseid', 'error');
- }
- $course = $DB->get_record('course', $params, '*', MUST_EXIST);
- $urlparams = array('id' => $course->id);
- // Sectionid should get priority over section number
- if ($sectionid) {
- $section = $DB->get_field('course_sections', 'section', array('id' => $sectionid, 'course' => $course->id), MUST_EXIST);
- }
- if ($section) {
- $urlparams['section'] = $section;
- }
- $PAGE->set_url('/course/view.php', $urlparams); // Defined here to avoid notices on errors etc
- // Prevent caching of this page to stop confusion when changing page after making AJAX changes
- $PAGE->set_cacheable(false);
- context_helper::preload_course($course->id);
- $context = context_course::instance($course->id, MUST_EXIST);
- // Remove any switched roles before checking login
- if ($switchrole == 0 && confirm_sesskey()) {
- role_switch($switchrole, $context);
- }
- require_login($course);
- // Switchrole - sanity check in cost-order...
- $reset_user_allowed_editing = false;
- if ($switchrole > 0 && confirm_sesskey() &&
- has_capability('moodle/role:switchroles', $context)) {
- // is this role assignable in this context?
- // inquiring minds want to know...
- $aroles = get_switchable_roles($context);
- if (is_array($aroles) && isset($aroles[$switchrole])) {
- role_switch($switchrole, $context);
- // Double check that this role is allowed here
- require_login($course);
- }
- // reset course page state - this prevents some weird problems ;-)
- $USER->activitycopy = false;
- $USER->activitycopycourse = NULL;
- unset($USER->activitycopyname);
- unset($SESSION->modform);
- $USER->editing = 0;
- $reset_user_allowed_editing = true;
- }
- //If course is hosted on an external server, redirect to corresponding
- //url with appropriate authentication attached as parameter
- if (file_exists($CFG->dirroot .'/course/externservercourse.php')) {
- include $CFG->dirroot .'/course/externservercourse.php';
- if (function_exists('extern_server_course')) {
- if ($extern_url = extern_server_course($course)) {
- redirect($extern_url);
- }
- }
- }
- require_once($CFG->dirroot.'/calendar/lib.php'); /// This is after login because it needs $USER
- // Must set layout before gettting section info. See MDL-47555.
- $PAGE->set_pagelayout('course');
- if ($section and $section > 0) {
- // Get section details and check it exists.
- $modinfo = get_fast_modinfo($course);
- $coursesections = $modinfo->get_section_info($section, MUST_EXIST);
- // Check user is allowed to see it.
- if (!$coursesections->uservisible) {
- // Check if coursesection has conditions affecting availability and if
- // so, output availability info.
- if ($coursesections->visible && $coursesections->availableinfo) {
- $sectionname = get_section_name($course, $coursesections);
- $message = get_string('notavailablecourse', '', $sectionname);
- redirect(course_get_url($course), $message, null, \core\output\notification::NOTIFY_ERROR);
- } else {
- // Note: We actually already know they don't have this capability
- // or uservisible would have been true; this is just to get the
- // correct error message shown.
- require_capability('moodle/course:viewhiddensections', $context);
- }
- }
- }
- // Fix course format if it is no longer installed
- $course->format = course_get_format($course)->get_format();
- $PAGE->set_pagetype('course-view-' . $course->format);
- $PAGE->set_other_editing_capability('moodle/course:update');
- $PAGE->set_other_editing_capability('moodle/course:manageactivities');
- $PAGE->set_other_editing_capability('moodle/course:activityvisibility');
- if (course_format_uses_sections($course->format)) {
- $PAGE->set_other_editing_capability('moodle/course:sectionvisibility');
- $PAGE->set_other_editing_capability('moodle/course:movesections');
- }
- // Preload course format renderer before output starts.
- // This is a little hacky but necessary since
- // format.php is not included until after output starts
- if (file_exists($CFG->dirroot.'/course/format/'.$course->format.'/renderer.php')) {
- require_once($CFG->dirroot.'/course/format/'.$course->format.'/renderer.php');
- if (class_exists('format_'.$course->format.'_renderer')) {
- // call get_renderer only if renderer is defined in format plugin
- // otherwise an exception would be thrown
- $PAGE->get_renderer('format_'. $course->format);
- }
- }
- if ($reset_user_allowed_editing) {
- // ugly hack
- unset($PAGE->_user_allowed_editing);
- }
- if (!isset($USER->editing)) {
- $USER->editing = 0;
- }
- if ($PAGE->user_allowed_editing()) {
- if (($edit == 1) and confirm_sesskey()) {
- $USER->editing = 1;
- // Redirect to site root if Editing is toggled on frontpage
- if ($course->id == SITEID) {
- redirect($CFG->wwwroot .'/?redirect=0');
- } else if (!empty($return)) {
- redirect($CFG->wwwroot . $return);
- } else {
- $url = new moodle_url($PAGE->url, array('notifyeditingon' => 1));
- redirect($url);
- }
- } else if (($edit == 0) and confirm_sesskey()) {
- $USER->editing = 0;
- if(!empty($USER->activitycopy) && $USER->activitycopycourse == $course->id) {
- $USER->activitycopy = false;
- $USER->activitycopycourse = NULL;
- }
- // Redirect to site root if Editing is toggled on frontpage
- if ($course->id == SITEID) {
- redirect($CFG->wwwroot .'/?redirect=0');
- } else if (!empty($return)) {
- redirect($CFG->wwwroot . $return);
- } else {
- redirect($PAGE->url);
- }
- }
- if (has_capability('moodle/course:sectionvisibility', $context)) {
- if ($hide && confirm_sesskey()) {
- set_section_visible($course->id, $hide, '0');
- redirect($PAGE->url);
- }
- if ($show && confirm_sesskey()) {
- set_section_visible($course->id, $show, '1');
- redirect($PAGE->url);
- }
- }
- if (!empty($section) && !empty($move) &&
- has_capability('moodle/course:movesections', $context) && confirm_sesskey()) {
- $destsection = $section + $move;
- if (move_section_to($course, $section, $destsection)) {
- if ($course->id == SITEID) {
- redirect($CFG->wwwroot . '/?redirect=0');
- } else {
- redirect(course_get_url($course));
- }
- } else {
- echo $OUTPUT->notification('An error occurred while moving a section');
- }
- }
- } else {
- $USER->editing = 0;
- }
- $SESSION->fromdiscussion = $PAGE->url->out(false);
- if ($course->id == SITEID) {
- // This course is not a real course.
- redirect($CFG->wwwroot .'/');
- }
- $completion = new completion_info($course);
- if ($completion->is_enabled()) {
- $PAGE->requires->string_for_js('completion-alt-manual-y', 'completion');
- $PAGE->requires->string_for_js('completion-alt-manual-n', 'completion');
- $PAGE->requires->js_init_call('M.core_completion.init');
- }
- // We are currently keeping the button here from 1.x to help new teachers figure out
- // what to do, even though the link also appears in the course admin block. It also
- // means you can back out of a situation where you removed the admin block. :)
- if ($PAGE->user_allowed_editing()) {
- $buttons = $OUTPUT->edit_button($PAGE->url);
- $PAGE->set_button($buttons);
- }
- // If viewing a section, make the title more specific
- if ($section and $section > 0 and course_format_uses_sections($course->format)) {
- $sectionname = get_string('sectionname', "format_$course->format");
- $sectiontitle = get_section_name($course, $section);
- $PAGE->set_title(get_string('coursesectiontitle', 'moodle', array('course' => $course->fullname, 'sectiontitle' => $sectiontitle, 'sectionname' => $sectionname)));
- } else {
- $PAGE->set_title(get_string('coursetitle', 'moodle', array('course' => $course->fullname)));
- }
- $PAGE->set_heading($course->fullname);
- echo $OUTPUT->header();
- if ($USER->editing == 1) {
- // MDL-65321 The backup libraries are quite heavy, only require the bare minimum.
- require_once($CFG->dirroot . '/backup/util/helper/async_helper.class.php');
- if (async_helper::is_async_pending($id, 'course', 'backup')) {
- echo $OUTPUT->notification(get_string('pendingasyncedit', 'backup'), 'warning');
- }
- }
- if ($completion->is_enabled()) {
- // This value tracks whether there has been a dynamic change to the page.
- // It is used so that if a user does this - (a) set some tickmarks, (b)
- // go to another page, (c) clicks Back button - the page will
- // automatically reload. Otherwise it would start with the wrong tick
- // values.
- echo html_writer::start_tag('form', array('action'=>'.', 'method'=>'get'));
- echo html_writer::start_tag('div');
- echo html_writer::empty_tag('input', array('type'=>'hidden', 'id'=>'completion_dynamic_change', 'name'=>'completion_dynamic_change', 'value'=>'0'));
- echo html_writer::end_tag('div');
- echo html_writer::end_tag('form');
- }
- // Course wrapper start.
- echo html_writer::start_tag('div', array('class'=>'course-content'));
- // make sure that section 0 exists (this function will create one if it is missing)
- course_create_sections_if_missing($course, 0);
- // get information about course modules and existing module types
- // format.php in course formats may rely on presence of these variables
- $modinfo = get_fast_modinfo($course);
- $modnames = get_module_types_names();
- $modnamesplural = get_module_types_names(true);
- $modnamesused = $modinfo->get_used_module_names();
- $mods = $modinfo->get_cms();
- $sections = $modinfo->get_section_info_all();
- // CAUTION, hacky fundamental variable defintion to follow!
- // Note that because of the way course fromats are constructed though
- // inclusion we pass parameters around this way..
- $displaysection = $section;
- // Include the actual course format.
- require($CFG->dirroot .'/course/format/'. $course->format .'/format.php');
- // Content wrapper end.
- echo html_writer::end_tag('div');
- // Trigger course viewed event.
- // We don't trust $context here. Course format inclusion above executes in the global space. We can't assume
- // anything after that point.
- course_view(context_course::instance($course->id), $section);
- // Include course AJAX
- include_course_ajax($course, $modnamesused);
- echo $OUTPUT->footer();