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<?php
// Display the course home page.
require_once('../config.php');
require_once('lib.php');
require_once($CFG->dirroot.'/mod/forum/lib.php');
require_once($CFG->libdir.'/completionlib.php');
$id = optional_param('id', 0, PARAM_INT);
$name = optional_param('name', '', PARAM_RAW);
$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);
$section = optional_param('section', 0, PARAM_INT);
$move = optional_param('move', 0, PARAM_INT);
$marker = optional_param('marker',-1 , PARAM_INT);
$switchrole = optional_param('switchrole',-1, PARAM_INT);
if (empty($id) && empty($name) && empty($idnumber)) {
print_error('unspecifycourseid', 'error');
}
if (!empty($name)) {
if (! ($course = $DB->get_record('course', array('shortname'=>$name)))) {
print_error('invalidcoursenameshort', 'error');
}
} else if (!empty($idnumber)) {
if (! ($course = $DB->get_record('course', array('idnumber'=>$idnumber)))) {
print_error('invalidcourseid', 'error');
}
} else {
if (! ($course = $DB->get_record('course', array('id'=>$id)))) {
print_error('invalidcourseid', 'error');
}
}
$PAGE->set_url('/course/view.php', array('id' => $course->id)); // Defined here to avoid notices on errors etc
preload_course_contexts($course->id);
if (!$context = get_context_instance(CONTEXT_COURSE, $course->id)) {
print_error('nocontext');
}
// Remove any switched roles before checking login
if ($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->id);
}
// 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 $USER
add_to_log($course->id, 'course', 'view', "view.php?id=$course->id", "$course->id");
$course->format = clean_param($course->format, PARAM_ALPHA);
if (!file_exists($CFG->dirroot.'/course/format/'.$course->format.'/format.php')) {
$course->format = 'weeks'; // Default format is weeks
}
$PAGE->set_pagelayout('course');
$PAGE->set_pagetype('course-view-' . $course->format);
$PAGE->set_other_editing_capability('moodle/course:manageactivities');
if ($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($CFG->wwwroot .'/?redirect=0');
} else {
redirect($PAGE->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($CFG->wwwroot .'/?redirect=0');
} else {
redirect($PAGE->url);
}
}
if (has_capability('moodle/course:sectionvisibility', $context)) {
if ($hide && confirm_sesskey()) {
set_section_visible($course->id, $hide, '0');
}
if ($show && confirm_sesskey()) {
set_section_visible($course->id, $show, '1');
}
}
if (has_capability('moodle/course:update', $context)) {
if (!empty($section)) {
if (!empty($move) and confirm_sesskey()) {
if (move_section($course, $section, $move)) {
if ($course->id == SITEID) {
redirect($CFG->wwwroot . '/?redirect=0');
} else {
redirect($PAGE->url);
}
} else {
echo $OUTPUT->notification('An error occurred while moving a section');
}
}
}
}
} else {
$USER->editing = 0;
}
$SESSION->fromdiscussion = $CFG->wwwroot .'/course/view.php?id='. $course->id;
if ($course->id == SITEID) {
// This course is not a real course.
redirect($CFG->wwwroot .'/');
}
// AJAX-capable course format?
$useajax = false;
$formatajax = course_format_ajax_support($course->format);
if (!empty($CFG->enablecourseajax)
and $formatajax->capable
and !empty($USER->editing)
and ajaxenabled($formatajax->testedbrowsers)
and $PAGE->theme->enablecourseajax
and has_capability('moodle/course:manageactivities', $context)) {
$PAGE->requires->yui2_lib('dragdrop');
$PAGE->requires->yui2_lib('connection');
$PAGE->requires->yui2_lib('selector');
$PAGE->requires->js('/lib/ajax/block_classes.js', true);
$PAGE->requires->js('/lib/ajax/section_classes.js', true);
// Okay, global variable alert. VERY UGLY. We need to create
// this object here before the <blockname>_print_block()
// function is called, since that function needs to set some
// stuff in the javascriptportal object.
$COURSE->javascriptportal = new jsportal();
$useajax = true;
}
$CFG->blocksdrag = $useajax; // this will add a new class to the header so we can style differently
$completion = new completion_info($course);
if ($completion->is_enabled() && ajaxenabled()) {
$PAGE->requires->string_for_js('completion-title-manual-y', 'completion');
$PAGE->requires->string_for_js('completion-title-manual-n', 'completion');
$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(new moodle_url('/course/view.php', array('id' => $course->id)));
$PAGE->set_button($buttons);
}
$PAGE->set_title(get_string('course') . ': ' . $course->fullname);
$PAGE->set_heading($course->fullname);
echo $OUTPUT->header();
if ($completion->is_enabled() && ajaxenabled()) {
// 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'));
$modinfo =& get_fast_modinfo($COURSE);
get_all_mods($course->id, $mods, $modnames, $modnamesplural, $modnamesused);
foreach($mods as $modid=>$unused) {
if (!isset($modinfo->cms[$modid])) {
rebuild_course_cache($course->id);
$modinfo =& get_fast_modinfo($COURSE);
debugging('Rebuilding course cache', DEBUG_DEVELOPER);
break;
}
}
if (! $sections = get_all_sections($course->id)) { // No sections found
// Double-check to be extra sure
if (! $section = $DB->get_record('course_sections', array('course'=>$course->id, 'section'=>0))) {
$section->course = $course->id; // Create a default section.
$section->section = 0;
$section->visible = 1;
$section->summaryformat = FORMAT_HTML;
$section->id = $DB->insert_record('course_sections', $section);
}
if (! $sections = get_all_sections($course->id) ) { // Try again
print_error('cannotcreateorfindstructs', 'error');
}
}
// Include the actual course format.
require($CFG->dirroot .'/course/format/'. $course->format .'/format.php');
// Content wrapper end.
echo html_writer::end_tag('div');
// Use AJAX?
if ($useajax && has_capability('moodle/course:manageactivities', $context)) {
// At the bottom because we want to process sections and activities
// after the relevant html has been generated. We're forced to do this
// because of the way in which lib/ajax/ajaxcourse.js is written.
echo html_writer::script(false, new moodle_url('/lib/ajax/ajaxcourse.js'));
$COURSE->javascriptportal->print_javascript($course->id);
}
echo $OUTPUT->footer();
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