3 // Display the course home page.
5 require_once('../config.php');
6 require_once('lib.php');
7 require_once($CFG->libdir
.'/completionlib.php');
9 $id = optional_param('id', 0, PARAM_INT
);
10 $name = optional_param('name', '', PARAM_RAW
);
11 $edit = optional_param('edit', -1, PARAM_BOOL
);
12 $hide = optional_param('hide', 0, PARAM_INT
);
13 $show = optional_param('show', 0, PARAM_INT
);
14 $idnumber = optional_param('idnumber', '', PARAM_RAW
);
15 $sectionid = optional_param('sectionid', 0, PARAM_INT
);
16 $section = optional_param('section', 0, PARAM_INT
);
17 $move = optional_param('move', 0, PARAM_INT
);
18 $marker = optional_param('marker',-1 , PARAM_INT
);
19 $switchrole = optional_param('switchrole',-1, PARAM_INT
); // Deprecated, use course/switchrole.php instead.
20 $modchooser = optional_param('modchooser', -1, PARAM_BOOL
);
21 $return = optional_param('return', 0, PARAM_LOCALURL
);
25 $params = array('shortname' => $name);
26 } else if (!empty($idnumber)) {
27 $params = array('idnumber' => $idnumber);
28 } else if (!empty($id)) {
29 $params = array('id' => $id);
31 print_error('unspecifycourseid', 'error');
34 $course = $DB->get_record('course', $params, '*', MUST_EXIST
);
36 $urlparams = array('id' => $course->id
);
38 // Sectionid should get priority over section number
40 $section = $DB->get_field('course_sections', 'section', array('id' => $sectionid, 'course' => $course->id
), MUST_EXIST
);
43 $urlparams['section'] = $section;
46 $PAGE->set_url('/course/view.php', $urlparams); // Defined here to avoid notices on errors etc
48 // Prevent caching of this page to stop confusion when changing page after making AJAX changes
49 $PAGE->set_cacheable(false);
51 context_helper
::preload_course($course->id
);
52 $context = context_course
::instance($course->id
, MUST_EXIST
);
54 // Remove any switched roles before checking login
55 if ($switchrole == 0 && confirm_sesskey()) {
56 role_switch($switchrole, $context);
59 require_login($course);
61 // Switchrole - sanity check in cost-order...
62 $reset_user_allowed_editing = false;
63 if ($switchrole > 0 && confirm_sesskey() &&
64 has_capability('moodle/role:switchroles', $context)) {
65 // is this role assignable in this context?
66 // inquiring minds want to know...
67 $aroles = get_switchable_roles($context);
68 if (is_array($aroles) && isset($aroles[$switchrole])) {
69 role_switch($switchrole, $context);
70 // Double check that this role is allowed here
71 require_login($course);
73 // reset course page state - this prevents some weird problems ;-)
74 $USER->activitycopy
= false;
75 $USER->activitycopycourse
= NULL;
76 unset($USER->activitycopyname
);
77 unset($SESSION->modform
);
79 $reset_user_allowed_editing = true;
82 //If course is hosted on an external server, redirect to corresponding
83 //url with appropriate authentication attached as parameter
84 if (file_exists($CFG->dirroot
.'/course/externservercourse.php')) {
85 include $CFG->dirroot
.'/course/externservercourse.php';
86 if (function_exists('extern_server_course')) {
87 if ($extern_url = extern_server_course($course)) {
88 redirect($extern_url);
94 require_once($CFG->dirroot
.'/calendar/lib.php'); /// This is after login because it needs $USER
96 // Must set layout before gettting section info. See MDL-47555.
97 $PAGE->set_pagelayout('course');
99 if ($section and $section > 0) {
101 // Get section details and check it exists.
102 $modinfo = get_fast_modinfo($course);
103 $coursesections = $modinfo->get_section_info($section, MUST_EXIST
);
105 // Check user is allowed to see it.
106 if (!$coursesections->uservisible
) {
107 // Note: We actually already know they don't have this capability
108 // or uservisible would have been true; this is just to get the
109 // correct error message shown.
110 require_capability('moodle/course:viewhiddensections', $context);
114 // Fix course format if it is no longer installed
115 $course->format
= course_get_format($course)->get_format();
117 $PAGE->set_pagetype('course-view-' . $course->format
);
118 $PAGE->set_other_editing_capability('moodle/course:update');
119 $PAGE->set_other_editing_capability('moodle/course:manageactivities');
120 $PAGE->set_other_editing_capability('moodle/course:activityvisibility');
121 if (course_format_uses_sections($course->format
)) {
122 $PAGE->set_other_editing_capability('moodle/course:sectionvisibility');
123 $PAGE->set_other_editing_capability('moodle/course:movesections');
126 // Preload course format renderer before output starts.
127 // This is a little hacky but necessary since
128 // format.php is not included until after output starts
129 if (file_exists($CFG->dirroot
.'/course/format/'.$course->format
.'/renderer.php')) {
130 require_once($CFG->dirroot
.'/course/format/'.$course->format
.'/renderer.php');
131 if (class_exists('format_'.$course->format
.'_renderer')) {
132 // call get_renderer only if renderer is defined in format plugin
133 // otherwise an exception would be thrown
134 $PAGE->get_renderer('format_'. $course->format
);
138 if ($reset_user_allowed_editing) {
140 unset($PAGE->_user_allowed_editing
);
143 if (!isset($USER->editing
)) {
146 if ($PAGE->user_allowed_editing()) {
147 if (($edit == 1) and confirm_sesskey()) {
149 // Redirect to site root if Editing is toggled on frontpage
150 if ($course->id
== SITEID
) {
151 redirect($CFG->wwwroot
.'/?redirect=0');
152 } else if (!empty($return)) {
153 redirect($CFG->wwwroot
. $return);
155 $url = new moodle_url($PAGE->url
, array('notifyeditingon' => 1));
158 } else if (($edit == 0) and confirm_sesskey()) {
160 if(!empty($USER->activitycopy
) && $USER->activitycopycourse
== $course->id
) {
161 $USER->activitycopy
= false;
162 $USER->activitycopycourse
= NULL;
164 // Redirect to site root if Editing is toggled on frontpage
165 if ($course->id
== SITEID
) {
166 redirect($CFG->wwwroot
.'/?redirect=0');
167 } else if (!empty($return)) {
168 redirect($CFG->wwwroot
. $return);
170 redirect($PAGE->url
);
173 if (($modchooser == 1) && confirm_sesskey()) {
174 set_user_preference('usemodchooser', $modchooser);
175 } else if (($modchooser == 0) && confirm_sesskey()) {
176 set_user_preference('usemodchooser', $modchooser);
179 if (has_capability('moodle/course:sectionvisibility', $context)) {
180 if ($hide && confirm_sesskey()) {
181 set_section_visible($course->id
, $hide, '0');
182 redirect($PAGE->url
);
185 if ($show && confirm_sesskey()) {
186 set_section_visible($course->id
, $show, '1');
187 redirect($PAGE->url
);
191 if (!empty($section) && !empty($move) &&
192 has_capability('moodle/course:movesections', $context) && confirm_sesskey()) {
193 $destsection = $section +
$move;
194 if (move_section_to($course, $section, $destsection)) {
195 if ($course->id
== SITEID
) {
196 redirect($CFG->wwwroot
. '/?redirect=0');
198 redirect(course_get_url($course));
201 echo $OUTPUT->notification('An error occurred while moving a section');
208 $SESSION->fromdiscussion
= $PAGE->url
->out(false);
211 if ($course->id
== SITEID
) {
212 // This course is not a real course.
213 redirect($CFG->wwwroot
.'/');
216 $completion = new completion_info($course);
217 if ($completion->is_enabled()) {
218 $PAGE->requires
->string_for_js('completion-title-manual-y', 'completion');
219 $PAGE->requires
->string_for_js('completion-title-manual-n', 'completion');
220 $PAGE->requires
->string_for_js('completion-alt-manual-y', 'completion');
221 $PAGE->requires
->string_for_js('completion-alt-manual-n', 'completion');
223 $PAGE->requires
->js_init_call('M.core_completion.init');
226 // We are currently keeping the button here from 1.x to help new teachers figure out
227 // what to do, even though the link also appears in the course admin block. It also
228 // means you can back out of a situation where you removed the admin block. :)
229 if ($PAGE->user_allowed_editing()) {
230 $buttons = $OUTPUT->edit_button($PAGE->url
);
231 $PAGE->set_button($buttons);
234 // If viewing a section, make the title more specific
235 if ($section and $section > 0 and course_format_uses_sections($course->format
)) {
236 $sectionname = get_string('sectionname', "format_$course->format");
237 $sectiontitle = get_section_name($course, $section);
238 $PAGE->set_title(get_string('coursesectiontitle', 'moodle', array('course' => $course->fullname
, 'sectiontitle' => $sectiontitle, 'sectionname' => $sectionname)));
240 $PAGE->set_title(get_string('coursetitle', 'moodle', array('course' => $course->fullname
)));
243 $PAGE->set_heading($course->fullname
);
244 echo $OUTPUT->header();
246 if ($completion->is_enabled()) {
247 // This value tracks whether there has been a dynamic change to the page.
248 // It is used so that if a user does this - (a) set some tickmarks, (b)
249 // go to another page, (c) clicks Back button - the page will
250 // automatically reload. Otherwise it would start with the wrong tick
252 echo html_writer
::start_tag('form', array('action'=>'.', 'method'=>'get'));
253 echo html_writer
::start_tag('div');
254 echo html_writer
::empty_tag('input', array('type'=>'hidden', 'id'=>'completion_dynamic_change', 'name'=>'completion_dynamic_change', 'value'=>'0'));
255 echo html_writer
::end_tag('div');
256 echo html_writer
::end_tag('form');
259 // Course wrapper start.
260 echo html_writer
::start_tag('div', array('class'=>'course-content'));
262 // make sure that section 0 exists (this function will create one if it is missing)
263 course_create_sections_if_missing($course, 0);
265 // get information about course modules and existing module types
266 // format.php in course formats may rely on presence of these variables
267 $modinfo = get_fast_modinfo($course);
268 $modnames = get_module_types_names();
269 $modnamesplural = get_module_types_names(true);
270 $modnamesused = $modinfo->get_used_module_names();
271 $mods = $modinfo->get_cms();
272 $sections = $modinfo->get_section_info_all();
274 // CAUTION, hacky fundamental variable defintion to follow!
275 // Note that because of the way course fromats are constructed though
276 // inclusion we pass parameters around this way..
277 $displaysection = $section;
279 // Include the actual course format.
280 require($CFG->dirroot
.'/course/format/'. $course->format
.'/format.php');
281 // Content wrapper end.
283 echo html_writer
::end_tag('div');
285 // Trigger course viewed event.
286 // We don't trust $context here. Course format inclusion above executes in the global space. We can't assume
287 // anything after that point.
288 course_view(context_course
::instance($course->id
), $section);
290 // Include course AJAX
291 include_course_ajax($course, $modnamesused);
293 echo $OUTPUT->footer();