mirror of
https://github.com/moodle/moodle.git
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268 lines
10 KiB
PHP
268 lines
10 KiB
PHP
<?php // $Id$
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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($CFG->libdir.'/blocklib.php');
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require_once($CFG->libdir.'/ajax/ajaxlib.php');
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require_once($CFG->dirroot.'/mod/forum/lib.php');
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$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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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 = page_create_object(PAGE_COURSE_VIEW, $course->id);
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$PAGE->set_url('course/view.php', array('id' => $course->id));
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$PAGE->set_other_editing_capability('moodle/course:manageactivities');
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$pageblocks = blocks_setup($PAGE, BLOCKS_PINNED_BOTH);
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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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$USER->editing = 1;
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} else if (($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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$USER->activitycopycourse = NULL;
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}
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}
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if ($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, $move)) {
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notify('An error occurred while moving a section');
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}
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}
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}
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} else {
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$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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$ajaxformatfile = $CFG->dirroot.'/course/format/'.$course->format.'/ajax.php';
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$bodytags = '';
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if (empty($CFG->disablecourseajax) and file_exists($ajaxformatfile)) { // Needs to exist otherwise no AJAX by default
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// TODO: stop abusing CFG global here
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$CFG->ajaxcapable = false; // May be overridden later by ajaxformatfile
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$CFG->ajaxtestedbrowsers = array(); // May be overridden later by ajaxformatfile
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require_once($ajaxformatfile);
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if (!empty($USER->editing) && $CFG->ajaxcapable && has_capability('moodle/course:manageactivities', $context)) {
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// Course-based switches
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if (ajaxenabled($CFG->ajaxtestedbrowsers)) { // Browser, user and site-based switches
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require_js(array('yui_yahoo',
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'yui_dom',
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'yui_event',
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'yui_dragdrop',
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'yui_connection',
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'ajaxcourse_blocks',
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'ajaxcourse_sections'));
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if (debugging('', DEBUG_DEVELOPER)) {
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require_js(array('yui_logger'));
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$bodytags = 'onload = "javascript:
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show_logger = function() {
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var logreader = new YAHOO.widget.LogReader();
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logreader.newestOnTop = false;
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logreader.setTitle(\'Moodle Debug: YUI Log Console\');
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};
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show_logger();
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"';
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}
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// Okay, global variable alert. VERY UGLY. We need to create
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// this object here before the <blockname>_print_block()
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// function is called, since that function needs to set some
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// stuff in the javascriptportal object.
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$COURSE->javascriptportal = new jsportal();
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$useajax = true;
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}
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}
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}
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$CFG->blocksdrag = $useajax; // this will add a new class to the header so we can style differently
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$PAGE->print_header(get_string('course').': %fullname%', NULL, '', $bodytags);
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$completion=new completion_info($course);
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if($completion->is_enabled() && ajaxenabled()) {
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require_js(array('yui_yahoo','yui_event','yui_connection','yui_dom'));
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// Need to do this after the header because it requires the YUI stuff
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// to be loaded already
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require_js('course/completion.js');
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print_js_config(array(
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'completion_strsaved' => get_string('saved','completion'),
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'completion_strtitley' => get_string('completion-title-manual-y','completion'),
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'completion_strtitlen' => get_string('completion-title-manual-n','completion'),
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'completion_stralty' => get_string('completion-alt-manual-y','completion'),
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'completion_straltn' => get_string('completion-alt-manual-n','completion'),
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));
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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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print '<form action="."><div><input type="hidden" id="completion_dynamic_change"
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name="completion_dynamic_change" value="0" /></div></form>';
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}
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// Course wrapper start.
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echo '<div 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->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/'. $course->format .'/format.php');
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// Content wrapper end.
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echo "</div>\n\n";
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// Use AJAX?
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if ($useajax && has_capability('moodle/course:manageactivities', $context)) {
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// At the bottom because we want to process sections and activities
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// after the relevant html has been generated. We're forced to do this
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// because of the way in which lib/ajax/ajaxcourse.js is written.
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require_js('lib/ajax/ajaxcourse.js');
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$COURSE->javascriptportal->print_javascript($course->id);
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}
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print_footer(NULL, $course);
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?>
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