3 // Display the course home page.
5 require_once('../config.php');
6 require_once('lib.php');
7 require_once($CFG->dirroot
.'/mod/forum/lib.php');
8 require_once($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 $section = optional_param('section', 0, PARAM_INT
);
17 $move = optional_param('move', 0, PARAM_INT
);
18 $marker = optional_param('marker',-1 , PARAM_INT
);
19 $switchrole = optional_param('switchrole',-1, PARAM_INT
);
21 if (empty($id) && empty($name) && empty($idnumber)) {
22 print_error('unspecifycourseid', 'error');
26 if (! ($course = $DB->get_record('course', array('shortname'=>$name)))) {
27 print_error('invalidcoursenameshort', 'error');
29 } else if (!empty($idnumber)) {
30 if (! ($course = $DB->get_record('course', array('idnumber'=>$idnumber)))) {
31 print_error('invalidcourseid', 'error');
34 if (! ($course = $DB->get_record('course', array('id'=>$id)))) {
35 print_error('invalidcourseid', 'error');
39 $PAGE->set_url('/course/view.php', array('id' => $course->id
)); // Defined here to avoid notices on errors etc
41 preload_course_contexts($course->id
);
42 if (!$context = get_context_instance(CONTEXT_COURSE
, $course->id
)) {
43 print_error('nocontext');
46 // Remove any switched roles before checking login
47 if ($switchrole == 0 && confirm_sesskey()) {
48 role_switch($switchrole, $context);
51 require_login($course);
53 // Switchrole - sanity check in cost-order...
54 $reset_user_allowed_editing = false;
55 if ($switchrole > 0 && confirm_sesskey() &&
56 has_capability('moodle/role:switchroles', $context)) {
57 // is this role assignable in this context?
58 // inquiring minds want to know...
59 $aroles = get_switchable_roles($context);
60 if (is_array($aroles) && isset($aroles[$switchrole])) {
61 role_switch($switchrole, $context);
62 // Double check that this role is allowed here
63 require_login($course);
65 // reset course page state - this prevents some weird problems ;-)
66 $USER->activitycopy
= false;
67 $USER->activitycopycourse
= NULL;
68 unset($USER->activitycopyname
);
69 unset($SESSION->modform
);
71 $reset_user_allowed_editing = true;
74 //If course is hosted on an external server, redirect to corresponding
75 //url with appropriate authentication attached as parameter
76 if (file_exists($CFG->dirroot
.'/course/externservercourse.php')) {
77 include $CFG->dirroot
.'/course/externservercourse.php';
78 if (function_exists('extern_server_course')) {
79 if ($extern_url = extern_server_course($course)) {
80 redirect($extern_url);
86 require_once($CFG->dirroot
.'/calendar/lib.php'); /// This is after login because it needs $USER
88 add_to_log($course->id
, 'course', 'view', "view.php?id=$course->id", "$course->id");
90 $course->format
= clean_param($course->format
, PARAM_ALPHA
);
91 if (!file_exists($CFG->dirroot
.'/course/format/'.$course->format
.'/format.php')) {
92 $course->format
= 'weeks'; // Default format is weeks
95 $PAGE->set_pagelayout('course');
96 $PAGE->set_pagetype('course-view-' . $course->format
);
97 $PAGE->set_other_editing_capability('moodle/course:manageactivities');
99 if ($reset_user_allowed_editing) {
101 unset($PAGE->_user_allowed_editing
);
104 if (!isset($USER->editing
)) {
107 if ($PAGE->user_allowed_editing()) {
108 if (($edit == 1) and confirm_sesskey()) {
110 // Redirect to site root if Editing is toggled on frontpage
111 if ($course->id
== SITEID
) {
112 redirect($CFG->wwwroot
.'/?redirect=0');
114 redirect($PAGE->url
);
116 } else if (($edit == 0) and confirm_sesskey()) {
118 if(!empty($USER->activitycopy
) && $USER->activitycopycourse
== $course->id
) {
119 $USER->activitycopy
= false;
120 $USER->activitycopycourse
= NULL;
122 // Redirect to site root if Editing is toggled on frontpage
123 if ($course->id
== SITEID
) {
124 redirect($CFG->wwwroot
.'/?redirect=0');
126 redirect($PAGE->url
);
130 if (has_capability('moodle/course:update', $context)) {
131 if ($hide && confirm_sesskey()) {
132 set_section_visible($course->id
, $hide, '0');
135 if ($show && confirm_sesskey()) {
136 set_section_visible($course->id
, $show, '1');
139 if (!empty($section)) {
140 if (!empty($move) and confirm_sesskey()) {
141 if (move_section($course, $section, $move)) {
142 if ($course->id
== SITEID
) {
143 redirect($CFG->wwwroot
. '/?redirect=0');
145 redirect($PAGE->url
);
148 echo $OUTPUT->notification('An error occurred while moving a section');
157 $SESSION->fromdiscussion
= $CFG->wwwroot
.'/course/view.php?id='. $course->id
;
160 if ($course->id
== SITEID
) {
161 // This course is not a real course.
162 redirect($CFG->wwwroot
.'/');
165 // AJAX-capable course format?
167 $formatajax = course_format_ajax_support($course->format
);
169 if (!empty($CFG->enablecourseajax
)
170 and $formatajax->capable
171 and !empty($USER->editing
)
172 and ajaxenabled($formatajax->testedbrowsers
)
173 and $PAGE->theme
->enablecourseajax
174 and has_capability('moodle/course:manageactivities', $context)) {
175 $PAGE->requires
->yui2_lib('dragdrop');
176 $PAGE->requires
->yui2_lib('connection');
177 $PAGE->requires
->yui2_lib('selector');
178 $PAGE->requires
->js('/lib/ajax/block_classes.js', true);
179 $PAGE->requires
->js('/lib/ajax/section_classes.js', true);
181 // Okay, global variable alert. VERY UGLY. We need to create
182 // this object here before the <blockname>_print_block()
183 // function is called, since that function needs to set some
184 // stuff in the javascriptportal object.
185 $COURSE->javascriptportal
= new jsportal();
189 $CFG->blocksdrag
= $useajax; // this will add a new class to the header so we can style differently
191 $completion = new completion_info($course);
192 if ($completion->is_enabled() && ajaxenabled()) {
193 $PAGE->requires
->string_for_js('completion-title-manual-y', 'completion');
194 $PAGE->requires
->string_for_js('completion-title-manual-n', 'completion');
195 $PAGE->requires
->string_for_js('completion-alt-manual-y', 'completion');
196 $PAGE->requires
->string_for_js('completion-alt-manual-n', 'completion');
198 $PAGE->requires
->js_init_call('M.core_completion.init');
201 // We are currently keeping the button here from 1.x to help new teachers figure out
202 // what to do, even though the link also appears in the course admin block. It also
203 // means you can back out of a situation where you removed the admin block. :)
204 if ($PAGE->user_allowed_editing()) {
205 $buttons = $OUTPUT->edit_button(new moodle_url('/course/view.php', array('id' => $course->id
)));
206 $PAGE->set_button($buttons);
209 $PAGE->set_title(get_string('course') . ': ' . $course->fullname
);
210 $PAGE->set_heading($course->fullname
);
211 echo $OUTPUT->header();
213 if ($completion->is_enabled() && ajaxenabled()) {
214 // This value tracks whether there has been a dynamic change to the page.
215 // It is used so that if a user does this - (a) set some tickmarks, (b)
216 // go to another page, (c) clicks Back button - the page will
217 // automatically reload. Otherwise it would start with the wrong tick
219 echo html_writer
::start_tag('form', array('action'=>'.', 'method'=>'get'));
220 echo html_writer
::start_tag('div');
221 echo html_writer
::empty_tag('input', array('type'=>'hidden', 'id'=>'completion_dynamic_change', 'name'=>'completion_dynamic_change', 'value'=>'0'));
222 echo html_writer
::end_tag('div');
223 echo html_writer
::end_tag('form');
226 // Course wrapper start.
227 echo html_writer
::start_tag('div', array('class'=>'course-content'));
229 $modinfo = get_fast_modinfo($COURSE);
230 get_all_mods($course->id
, $mods, $modnames, $modnamesplural, $modnamesused);
231 foreach($mods as $modid=>$unused) {
232 if (!isset($modinfo->cms
[$modid])) {
233 rebuild_course_cache($course->id
);
234 $modinfo = get_fast_modinfo($COURSE);
235 debugging('Rebuilding course cache', DEBUG_DEVELOPER
);
240 if (! $sections = get_all_sections($course->id
)) { // No sections found
241 // Double-check to be extra sure
242 if (! $section = $DB->get_record('course_sections', array('course'=>$course->id
, 'section'=>0))) {
243 $section->course
= $course->id
; // Create a default section.
244 $section->section
= 0;
245 $section->visible
= 1;
246 $section->summaryformat
= FORMAT_HTML
;
247 $section->id
= $DB->insert_record('course_sections', $section);
249 if (! $sections = get_all_sections($course->id
) ) { // Try again
250 print_error('cannotcreateorfindstructs', 'error');
254 // Include the actual course format.
255 require($CFG->dirroot
.'/course/format/'. $course->format
.'/format.php');
256 // Content wrapper end.
258 echo html_writer
::end_tag('div');
261 if ($useajax && has_capability('moodle/course:manageactivities', $context)) {
262 // At the bottom because we want to process sections and activities
263 // after the relevant html has been generated. We're forced to do this
264 // because of the way in which lib/ajax/ajaxcourse.js is written.
265 echo html_writer
::script(false, new moodle_url('/lib/ajax/ajaxcourse.js'));
266 $COURSE->javascriptportal
->print_javascript($course->id
);
270 echo $OUTPUT->footer();