3 // Display the course home page.
5 require_once('../config.php');
6 require_once('lib.php');
7 require_once($CFG->libdir
.'/conditionlib.php');
8 require_once($CFG->libdir
.'/completionlib.php');
10 $id = optional_param('id', 0, PARAM_INT
);
11 $name = optional_param('name', '', PARAM_RAW
);
12 $edit = optional_param('edit', -1, PARAM_BOOL
);
13 $hide = optional_param('hide', 0, PARAM_INT
);
14 $show = optional_param('show', 0, PARAM_INT
);
15 $idnumber = optional_param('idnumber', '', PARAM_RAW
);
16 $sectionid = optional_param('sectionid', 0, PARAM_INT
);
17 $section = optional_param('section', 0, PARAM_INT
);
18 $move = optional_param('move', 0, PARAM_INT
);
19 $marker = optional_param('marker',-1 , PARAM_INT
);
20 $switchrole = optional_param('switchrole',-1, PARAM_INT
); // Deprecated, use course/switchrole.php instead.
21 $modchooser = optional_param('modchooser', -1, PARAM_BOOL
);
22 $return = optional_param('return', 0, PARAM_LOCALURL
);
26 $params = array('shortname' => $name);
27 } else if (!empty($idnumber)) {
28 $params = array('idnumber' => $idnumber);
29 } else if (!empty($id)) {
30 $params = array('id' => $id);
32 print_error('unspecifycourseid', 'error');
35 $course = $DB->get_record('course', $params, '*', MUST_EXIST
);
37 $urlparams = array('id' => $course->id
);
39 // Sectionid should get priority over section number
41 $section = $DB->get_field('course_sections', 'section', array('id' => $sectionid, 'course' => $course->id
), MUST_EXIST
);
44 $urlparams['section'] = $section;
47 $PAGE->set_url('/course/view.php', $urlparams); // Defined here to avoid notices on errors etc
49 // Prevent caching of this page to stop confusion when changing page after making AJAX changes
50 $PAGE->set_cacheable(false);
52 context_helper
::preload_course($course->id
);
53 $context = context_course
::instance($course->id
, MUST_EXIST
);
55 // Remove any switched roles before checking login
56 if ($switchrole == 0 && confirm_sesskey()) {
57 role_switch($switchrole, $context);
60 require_login($course);
62 // Switchrole - sanity check in cost-order...
63 $reset_user_allowed_editing = false;
64 if ($switchrole > 0 && confirm_sesskey() &&
65 has_capability('moodle/role:switchroles', $context)) {
66 // is this role assignable in this context?
67 // inquiring minds want to know...
68 $aroles = get_switchable_roles($context);
69 if (is_array($aroles) && isset($aroles[$switchrole])) {
70 role_switch($switchrole, $context);
71 // Double check that this role is allowed here
72 require_login($course);
74 // reset course page state - this prevents some weird problems ;-)
75 $USER->activitycopy
= false;
76 $USER->activitycopycourse
= NULL;
77 unset($USER->activitycopyname
);
78 unset($SESSION->modform
);
80 $reset_user_allowed_editing = true;
83 //If course is hosted on an external server, redirect to corresponding
84 //url with appropriate authentication attached as parameter
85 if (file_exists($CFG->dirroot
.'/course/externservercourse.php')) {
86 include $CFG->dirroot
.'/course/externservercourse.php';
87 if (function_exists('extern_server_course')) {
88 if ($extern_url = extern_server_course($course)) {
89 redirect($extern_url);
95 require_once($CFG->dirroot
.'/calendar/lib.php'); /// This is after login because it needs $USER
97 $logparam = 'id='. $course->id
;
99 $infoid = $course->id
;
100 if ($section and $section > 0) {
101 $loglabel = 'view section';
103 // Get section details and check it exists.
104 $modinfo = get_fast_modinfo($course);
105 $coursesections = $modinfo->get_section_info($section, MUST_EXIST
);
107 // Check user is allowed to see it.
108 if (!$coursesections->uservisible
) {
109 // Note: We actually already know they don't have this capability
110 // or uservisible would have been true; this is just to get the
111 // correct error message shown.
112 require_capability('moodle/course:viewhiddensections', $context);
114 $infoid = $coursesections->id
;
115 $logparam .= '§ionid='. $infoid;
117 add_to_log($course->id
, 'course', $loglabel, "view.php?". $logparam, $infoid);
119 // Fix course format if it is no longer installed
120 $course->format
= course_get_format($course)->get_format();
122 $PAGE->set_pagelayout('course');
123 $PAGE->set_pagetype('course-view-' . $course->format
);
124 $PAGE->set_other_editing_capability('moodle/course:update');
125 $PAGE->set_other_editing_capability('moodle/course:manageactivities');
126 $PAGE->set_other_editing_capability('moodle/course:activityvisibility');
127 if (course_format_uses_sections($course->format
)) {
128 $PAGE->set_other_editing_capability('moodle/course:sectionvisibility');
129 $PAGE->set_other_editing_capability('moodle/course:movesections');
132 // Preload course format renderer before output starts.
133 // This is a little hacky but necessary since
134 // format.php is not included until after output starts
135 if (file_exists($CFG->dirroot
.'/course/format/'.$course->format
.'/renderer.php')) {
136 require_once($CFG->dirroot
.'/course/format/'.$course->format
.'/renderer.php');
137 if (class_exists('format_'.$course->format
.'_renderer')) {
138 // call get_renderer only if renderer is defined in format plugin
139 // otherwise an exception would be thrown
140 $PAGE->get_renderer('format_'. $course->format
);
144 if ($reset_user_allowed_editing) {
146 unset($PAGE->_user_allowed_editing
);
149 if (!isset($USER->editing
)) {
152 if ($PAGE->user_allowed_editing()) {
153 if (($edit == 1) and confirm_sesskey()) {
155 // Redirect to site root if Editing is toggled on frontpage
156 if ($course->id
== SITEID
) {
157 redirect($CFG->wwwroot
.'/?redirect=0');
158 } else if (!empty($return)) {
159 redirect($CFG->wwwroot
. $return);
161 $url = new moodle_url($PAGE->url
, array('notifyeditingon' => 1));
164 } else if (($edit == 0) and confirm_sesskey()) {
166 if(!empty($USER->activitycopy
) && $USER->activitycopycourse
== $course->id
) {
167 $USER->activitycopy
= false;
168 $USER->activitycopycourse
= NULL;
170 // Redirect to site root if Editing is toggled on frontpage
171 if ($course->id
== SITEID
) {
172 redirect($CFG->wwwroot
.'/?redirect=0');
173 } else if (!empty($return)) {
174 redirect($CFG->wwwroot
. $return);
176 redirect($PAGE->url
);
179 if (($modchooser == 1) && confirm_sesskey()) {
180 set_user_preference('usemodchooser', $modchooser);
181 } else if (($modchooser == 0) && confirm_sesskey()) {
182 set_user_preference('usemodchooser', $modchooser);
185 if (has_capability('moodle/course:sectionvisibility', $context)) {
186 if ($hide && confirm_sesskey()) {
187 set_section_visible($course->id
, $hide, '0');
188 redirect($PAGE->url
);
191 if ($show && confirm_sesskey()) {
192 set_section_visible($course->id
, $show, '1');
193 redirect($PAGE->url
);
197 if (!empty($section) && !empty($move) &&
198 has_capability('moodle/course:movesections', $context) && confirm_sesskey()) {
199 $destsection = $section +
$move;
200 if (move_section_to($course, $section, $destsection)) {
201 if ($course->id
== SITEID
) {
202 redirect($CFG->wwwroot
. '/?redirect=0');
204 redirect(course_get_url($course));
207 echo $OUTPUT->notification('An error occurred while moving a section');
214 $SESSION->fromdiscussion
= $PAGE->url
->out(false);
217 if ($course->id
== SITEID
) {
218 // This course is not a real course.
219 redirect($CFG->wwwroot
.'/');
222 $ajaxenabled = ajaxenabled();
224 $completion = new completion_info($course);
225 if ($completion->is_enabled() && $ajaxenabled) {
226 $PAGE->requires
->string_for_js('completion-title-manual-y', 'completion');
227 $PAGE->requires
->string_for_js('completion-title-manual-n', 'completion');
228 $PAGE->requires
->string_for_js('completion-alt-manual-y', 'completion');
229 $PAGE->requires
->string_for_js('completion-alt-manual-n', 'completion');
231 $PAGE->requires
->js_init_call('M.core_completion.init');
234 // We are currently keeping the button here from 1.x to help new teachers figure out
235 // what to do, even though the link also appears in the course admin block. It also
236 // means you can back out of a situation where you removed the admin block. :)
237 if ($PAGE->user_allowed_editing()) {
238 $buttons = $OUTPUT->edit_button($PAGE->url
);
239 $PAGE->set_button($buttons);
242 $PAGE->set_title(get_string('course') . ': ' . $course->fullname
);
243 // If viewing a section, make the title more specific
244 if ($section and $section > 0 and course_format_uses_sections($course->format
)) {
245 // Get section details and check it exists.
246 $newtitle = $PAGE->title
.', '.get_string('sectionname', "format_$course->format").': '.
247 get_section_name($course, $section);
248 $PAGE->set_title($newtitle);
251 $PAGE->set_heading($course->fullname
);
252 echo $OUTPUT->header();
254 if ($completion->is_enabled() && $ajaxenabled) {
255 // This value tracks whether there has been a dynamic change to the page.
256 // It is used so that if a user does this - (a) set some tickmarks, (b)
257 // go to another page, (c) clicks Back button - the page will
258 // automatically reload. Otherwise it would start with the wrong tick
260 echo html_writer
::start_tag('form', array('action'=>'.', 'method'=>'get'));
261 echo html_writer
::start_tag('div');
262 echo html_writer
::empty_tag('input', array('type'=>'hidden', 'id'=>'completion_dynamic_change', 'name'=>'completion_dynamic_change', 'value'=>'0'));
263 echo html_writer
::end_tag('div');
264 echo html_writer
::end_tag('form');
267 // Course wrapper start.
268 echo html_writer
::start_tag('div', array('class'=>'course-content'));
270 // make sure that section 0 exists (this function will create one if it is missing)
271 course_create_sections_if_missing($course, 0);
273 // get information about course modules and existing module types
274 // format.php in course formats may rely on presence of these variables
275 $modinfo = get_fast_modinfo($course);
276 $modnames = get_module_types_names();
277 $modnamesplural = get_module_types_names(true);
278 $modnamesused = $modinfo->get_used_module_names();
279 $mods = $modinfo->get_cms();
280 $sections = $modinfo->get_section_info_all();
282 // CAUTION, hacky fundamental variable defintion to follow!
283 // Note that because of the way course fromats are constructed though
284 // inclusion we pass parameters around this way..
285 $displaysection = $section;
287 // Include the actual course format.
288 require($CFG->dirroot
.'/course/format/'. $course->format
.'/format.php');
289 // Content wrapper end.
291 echo html_writer
::end_tag('div');
293 // Include course AJAX
294 include_course_ajax($course, $modnamesused);
296 echo $OUTPUT->footer();