mirror of
https://github.com/moodle/moodle.git
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258 lines
10 KiB
PHP
258 lines
10 KiB
PHP
<?php
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// Display the course home page.
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require_once('../config.php');
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require_once('lib.php');
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require_once($CFG->dirroot.'/mod/forum/lib.php');
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require_once($CFG->libdir.'/completionlib.php');
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$id = optional_param('id', 0, PARAM_INT);
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$name = optional_param('name', '', PARAM_RAW);
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$edit = optional_param('edit', -1, PARAM_BOOL);
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$hide = optional_param('hide', 0, PARAM_INT);
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$show = optional_param('show', 0, PARAM_INT);
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$idnumber = optional_param('idnumber', '', PARAM_RAW);
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$section = optional_param('section', 0, PARAM_INT);
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$move = optional_param('move', 0, PARAM_INT);
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$marker = optional_param('marker',-1 , PARAM_INT);
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$switchrole = optional_param('switchrole',-1, PARAM_INT);
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if (empty($id) && empty($name) && empty($idnumber)) {
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print_error('unspecifycourseid', 'error');
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}
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if (!empty($name)) {
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if (! ($course = $DB->get_record('course', array('shortname'=>$name)))) {
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print_error('invalidcoursenameshort', 'error');
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}
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} else if (!empty($idnumber)) {
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if (! ($course = $DB->get_record('course', array('idnumber'=>$idnumber)))) {
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print_error('invalidcourseid', 'error');
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}
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} else {
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if (! ($course = $DB->get_record('course', array('id'=>$id)))) {
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print_error('invalidcourseid', 'error');
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}
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}
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$PAGE->set_url('/course/view.php', array('id' => $course->id)); // Defined here to avoid notices on errors etc
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preload_course_contexts($course->id);
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if (!$context = get_context_instance(CONTEXT_COURSE, $course->id)) {
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print_error('nocontext');
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}
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// Remove any switched roles before checking login
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if ($switchrole == 0 && confirm_sesskey()) {
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role_switch($switchrole, $context);
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}
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require_login($course);
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// Switchrole - sanity check in cost-order...
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$reset_user_allowed_editing = false;
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if ($switchrole > 0 && confirm_sesskey() &&
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has_capability('moodle/role:switchroles', $context)) {
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// is this role assignable in this context?
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// inquiring minds want to know...
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$aroles = get_switchable_roles($context);
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if (is_array($aroles) && isset($aroles[$switchrole])) {
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role_switch($switchrole, $context);
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// Double check that this role is allowed here
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require_login($course->id);
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}
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// reset course page state - this prevents some weird problems ;-)
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$USER->activitycopy = false;
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$USER->activitycopycourse = NULL;
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unset($USER->activitycopyname);
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unset($SESSION->modform);
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$USER->editing = 0;
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$reset_user_allowed_editing = true;
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}
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//If course is hosted on an external server, redirect to corresponding
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//url with appropriate authentication attached as parameter
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if (file_exists($CFG->dirroot .'/course/externservercourse.php')) {
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include $CFG->dirroot .'/course/externservercourse.php';
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if (function_exists('extern_server_course')) {
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if ($extern_url = extern_server_course($course)) {
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redirect($extern_url);
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}
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}
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}
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require_once($CFG->dirroot.'/calendar/lib.php'); /// This is after login because it needs $USER
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add_to_log($course->id, 'course', 'view', "view.php?id=$course->id", "$course->id");
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$course->format = clean_param($course->format, PARAM_ALPHA);
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if (!file_exists($CFG->dirroot.'/course/format/'.$course->format.'/format.php')) {
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$course->format = 'weeks'; // Default format is weeks
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}
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$PAGE->set_pagelayout('course');
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$PAGE->set_pagetype('course-view-' . $course->format);
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$PAGE->set_other_editing_capability('moodle/course:manageactivities');
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if ($reset_user_allowed_editing) {
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// ugly hack
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unset($PAGE->_user_allowed_editing);
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}
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if (!isset($USER->editing)) {
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$USER->editing = 0;
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}
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if ($PAGE->user_allowed_editing()) {
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if (($edit == 1) and confirm_sesskey()) {
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$USER->editing = 1;
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redirect($PAGE->url);
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} else if (($edit == 0) and confirm_sesskey()) {
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$USER->editing = 0;
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if(!empty($USER->activitycopy) && $USER->activitycopycourse == $course->id) {
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$USER->activitycopy = false;
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$USER->activitycopycourse = NULL;
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}
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redirect($PAGE->url);
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}
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if ($hide && confirm_sesskey()) {
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set_section_visible($course->id, $hide, '0');
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}
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if ($show && confirm_sesskey()) {
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set_section_visible($course->id, $show, '1');
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}
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if (!empty($section)) {
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if (!empty($move) and confirm_sesskey()) {
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if (!move_section($course, $section, $move)) {
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echo $OUTPUT->notification('An error occurred while moving a section');
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}
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// Clear the navigation cache at this point so that the affects
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// are seen immediatly on the navigation.
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$PAGE->navigation->clear_cache();
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}
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}
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} else {
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$USER->editing = 0;
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}
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$SESSION->fromdiscussion = $CFG->wwwroot .'/course/view.php?id='. $course->id;
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if ($course->id == SITEID) {
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// This course is not a real course.
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redirect($CFG->wwwroot .'/');
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}
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// AJAX-capable course format?
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$useajax = false;
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$formatajax = course_format_ajax_support($course->format);
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if (!empty($CFG->enablecourseajax)
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and $formatajax->capable
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and !empty($USER->editing)
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and ajaxenabled($formatajax->testedbrowsers)
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and $PAGE->theme->enablecourseajax
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and has_capability('moodle/course:manageactivities', $context)) {
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$PAGE->requires->yui2_lib('dragdrop');
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$PAGE->requires->yui2_lib('connection');
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$PAGE->requires->yui2_lib('selector');
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$PAGE->requires->js('/lib/ajax/block_classes.js', true);
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$PAGE->requires->js('/lib/ajax/section_classes.js', true);
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// Okay, global variable alert. VERY UGLY. We need to create
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// this object here before the <blockname>_print_block()
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// function is called, since that function needs to set some
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// stuff in the javascriptportal object.
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$COURSE->javascriptportal = new jsportal();
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$useajax = true;
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}
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$CFG->blocksdrag = $useajax; // this will add a new class to the header so we can style differently
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$completion = new completion_info($course);
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if ($completion->is_enabled() && ajaxenabled()) {
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$PAGE->requires->string_for_js('completion-title-manual-y', 'completion');
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$PAGE->requires->string_for_js('completion-title-manual-n', 'completion');
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$PAGE->requires->string_for_js('completion-alt-manual-y', 'completion');
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$PAGE->requires->string_for_js('completion-alt-manual-n', 'completion');
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$PAGE->requires->js_init_call('M.core_completion.init');
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}
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// We are currently keeping the button here from 1.x to help new teachers figure out
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// what to do, even though the link also appears in the course admin block. It also
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// means you can back out of a situation where you removed the admin block. :)
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if ($PAGE->user_allowed_editing()) {
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$buttons = $OUTPUT->edit_button(new moodle_url('/course/view.php', array('id' => $course->id)));
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$PAGE->set_button($buttons);
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}
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$PAGE->set_title(get_string('course') . ': ' . $course->fullname);
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$PAGE->set_heading($course->fullname);
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echo $OUTPUT->header();
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if ($completion->is_enabled() && ajaxenabled()) {
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// This value tracks whether there has been a dynamic change to the page.
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// It is used so that if a user does this - (a) set some tickmarks, (b)
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// go to another page, (c) clicks Back button - the page will
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// automatically reload. Otherwise it would start with the wrong tick
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// values.
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echo html_writer::start_tag('form', array('action'=>'.', 'method'=>'get'));
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echo html_writer::start_tag('div');
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echo html_writer::empty_tag('input', array('type'=>'hidden', 'id'=>'completion_dynamic_change', 'name'=>'completion_dynamic_change', 'value'=>'0'));
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echo html_writer::end_tag('div');
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echo html_writer::end_tag('form');
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}
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// Course wrapper start.
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echo html_writer::start_tag('div', array('class'=>'course-content'));
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$modinfo =& get_fast_modinfo($COURSE);
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get_all_mods($course->id, $mods, $modnames, $modnamesplural, $modnamesused);
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foreach($mods as $modid=>$unused) {
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if (!isset($modinfo->cms[$modid])) {
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rebuild_course_cache($course->id);
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$modinfo =& get_fast_modinfo($COURSE);
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debugging('Rebuilding course cache', DEBUG_DEVELOPER);
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break;
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}
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}
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if (! $sections = get_all_sections($course->id)) { // No sections found
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// Double-check to be extra sure
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if (! $section = $DB->get_record('course_sections', array('course'=>$course->id, 'section'=>0))) {
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$section->course = $course->id; // Create a default section.
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$section->section = 0;
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$section->visible = 1;
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$section->summaryformat = FORMAT_HTML;
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$section->id = $DB->insert_record('course_sections', $section);
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}
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if (! $sections = get_all_sections($course->id) ) { // Try again
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print_error('cannotcreateorfindstructs', 'error');
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}
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}
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// Include the actual course format.
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require($CFG->dirroot .'/course/format/'. $course->format .'/format.php');
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// Content wrapper end.
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echo html_writer::end_tag('div');
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// Use AJAX?
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if ($useajax && has_capability('moodle/course:manageactivities', $context)) {
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// At the bottom because we want to process sections and activities
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// after the relevant html has been generated. We're forced to do this
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// because of the way in which lib/ajax/ajaxcourse.js is written.
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echo html_writer::script(false, new moodle_url('/lib/ajax/ajaxcourse.js'));
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$COURSE->javascriptportal->print_javascript($course->id);
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}
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echo $OUTPUT->footer();
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