weekly release 2.5dev
[moodle.git] / index.php
1 <?php
3 // This file is part of Moodle - http://moodle.org/
4 //
5 // Moodle is free software: you can redistribute it and/or modify
6 // it under the terms of the GNU General Public License as published by
7 // the Free Software Foundation, either version 3 of the License, or
8 // (at your option) any later version.
9 //
10 // Moodle is distributed in the hope that it will be useful,
11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13 // GNU General Public License for more details.
14 //
15 // You should have received a copy of the GNU General Public License
16 // along with Moodle.  If not, see <http://www.gnu.org/licenses/>.
18 /**
19  * Moodle frontpage.
20  *
21  * @package    core
22  * @copyright  1999 onwards Martin Dougiamas (http://dougiamas.com)
23  * @license    http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24  */
26     if (!file_exists('./config.php')) {
27         header('Location: install.php');
28         die;
29     }
31     require_once('config.php');
32     require_once($CFG->dirroot .'/course/lib.php');
33     require_once($CFG->libdir .'/filelib.php');
35     redirect_if_major_upgrade_required();
37     $urlparams = array();
38     if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 0) {
39         $urlparams['redirect'] = 0;
40     }
41     $PAGE->set_url('/', $urlparams);
42     $PAGE->set_course($SITE);
44     // Prevent caching of this page to stop confusion when changing page after making AJAX changes
45     $PAGE->set_cacheable(false);
47     if ($CFG->forcelogin) {
48         require_login();
49     } else {
50         user_accesstime_log();
51     }
53     $hassiteconfig = has_capability('moodle/site:config', context_system::instance());
55 /// If the site is currently under maintenance, then print a message
56     if (!empty($CFG->maintenance_enabled) and !$hassiteconfig) {
57         print_maintenance_message();
58     }
60     if ($hassiteconfig && moodle_needs_upgrading()) {
61         redirect($CFG->wwwroot .'/'. $CFG->admin .'/index.php');
62     }
64     if (get_home_page() != HOMEPAGE_SITE) {
65         // Redirect logged-in users to My Moodle overview if required
66         if (optional_param('setdefaulthome', false, PARAM_BOOL)) {
67             set_user_preference('user_home_page_preference', HOMEPAGE_SITE);
68         } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_MY) && optional_param('redirect', 1, PARAM_BOOL) === 1) {
69             redirect($CFG->wwwroot .'/my/');
70         } else if (!empty($CFG->defaulthomepage) && ($CFG->defaulthomepage == HOMEPAGE_USER)) {
71             $PAGE->settingsnav->get('usercurrentsettings')->add(get_string('makethismyhome'), new moodle_url('/', array('setdefaulthome'=>true)), navigation_node::TYPE_SETTING);
72         }
73     }
75     if (isloggedin()) {
76         add_to_log(SITEID, 'course', 'view', 'view.php?id='.SITEID, SITEID);
77     }
79 /// If the hub plugin is installed then we let it take over the homepage here
80     if (file_exists($CFG->dirroot.'/local/hub/lib.php') and get_config('local_hub', 'hubenabled')) {
81         require_once($CFG->dirroot.'/local/hub/lib.php');
82         $hub = new local_hub();
83         $continue = $hub->display_homepage();
84         //display_homepage() return true if the hub home page is not displayed
85         //mostly when search form is not displayed for not logged users
86         if (empty($continue)) {
87             exit;
88         }
89     }
91     $PAGE->set_pagetype('site-index');
92     $PAGE->set_other_editing_capability('moodle/course:manageactivities');
93     $PAGE->set_docs_path('');
94     $PAGE->set_pagelayout('frontpage');
95     $editing = $PAGE->user_is_editing();
96     $PAGE->set_title($SITE->fullname);
97     $PAGE->set_heading($SITE->fullname);
98     echo $OUTPUT->header();
100 /// Print Section or custom info
101     $siteformatoptions = course_get_format($SITE)->get_format_options();
102     $modinfo = get_fast_modinfo($SITE);
103     $modnames = get_module_types_names();
104     $modnamesplural = get_module_types_names(true);
105     $modnamesused = $modinfo->get_used_module_names();
106     $mods = $modinfo->get_cms();
108     if (!empty($CFG->customfrontpageinclude)) {
109         include($CFG->customfrontpageinclude);
111     } else if ($siteformatoptions['numsections'] > 0) {
112         if ($editing) {
113             // make sure section with number 1 exists
114             course_create_sections_if_missing($SITE, 1);
115             // re-request modinfo in case section was created
116             $modinfo = get_fast_modinfo($SITE);
117         }
118         $section = $modinfo->get_section_info(1);
119         if (($section && (!empty($modinfo->sections[1]) or !empty($section->summary))) or $editing) {
120             echo $OUTPUT->box_start('generalbox sitetopic');
122             /// If currently moving a file then show the current clipboard
123             if (ismoving($SITE->id)) {
124                 $stractivityclipboard = strip_tags(get_string('activityclipboard', '', $USER->activitycopyname));
125                 echo '<p><font size="2">';
126                 echo "$stractivityclipboard&nbsp;&nbsp;(<a href=\"course/mod.php?cancelcopy=true&amp;sesskey=".sesskey()."\">". get_string('cancel') .'</a>)';
127                 echo '</font></p>';
128             }
130             $context = context_course::instance(SITEID);
131             $summarytext = file_rewrite_pluginfile_urls($section->summary, 'pluginfile.php', $context->id, 'course', 'section', $section->id);
132             $summaryformatoptions = new stdClass();
133             $summaryformatoptions->noclean = true;
134             $summaryformatoptions->overflowdiv = true;
136             echo format_text($summarytext, $section->summaryformat, $summaryformatoptions);
138             if ($editing) {
139                 $streditsummary = get_string('editsummary');
140                 echo "<a title=\"$streditsummary\" ".
141                      " href=\"course/editsection.php?id=$section->id\"><img src=\"" . $OUTPUT->pix_url('t/edit') . "\" ".
142                      " class=\"iconsmall\" alt=\"$streditsummary\" /></a><br /><br />";
143             }
145             $courserenderer = $PAGE->get_renderer('core', 'course');
146             echo $courserenderer->course_section_cm_list($SITE, $section);
148             echo $courserenderer->course_section_add_cm_control($SITE, $section->section);
149             echo $OUTPUT->box_end();
150         }
151     }
152     // Include course AJAX
153     include_course_ajax($SITE, $modnamesused);
155     if (isloggedin() and !isguestuser() and isset($CFG->frontpageloggedin)) {
156         $frontpagelayout = $CFG->frontpageloggedin;
157     } else {
158         $frontpagelayout = $CFG->frontpage;
159     }
161     foreach (explode(',',$frontpagelayout) as $v) {
162         switch ($v) {     /// Display the main part of the front page.
163             case FRONTPAGENEWS:
164                 if ($SITE->newsitems) { // Print forums only when needed
165                     require_once($CFG->dirroot .'/mod/forum/lib.php');
167                     if (! $newsforum = forum_get_course_forum($SITE->id, 'news')) {
168                         print_error('cannotfindorcreateforum', 'forum');
169                     }
171                     // fetch news forum context for proper filtering to happen
172                     $newsforumcm = get_coursemodule_from_instance('forum', $newsforum->id, $SITE->id, false, MUST_EXIST);
173                     $newsforumcontext = context_module::instance($newsforumcm->id, MUST_EXIST);
175                     $forumname = format_string($newsforum->name, true, array('context' => $newsforumcontext));
176                     echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(strip_tags($forumname))), array('href'=>'#skipsitenews', 'class'=>'skip-block'));
178                     // wraps site news forum in div container.
179                     echo html_writer::start_tag('div', array('id'=>'site-news-forum'));
181                     if (isloggedin()) {
182                         $SESSION->fromdiscussion = $CFG->wwwroot;
183                         $subtext = '';
184                         if (forum_is_subscribed($USER->id, $newsforum)) {
185                             if (!forum_is_forcesubscribed($newsforum)) {
186                                 $subtext = get_string('unsubscribe', 'forum');
187                             }
188                         } else {
189                             $subtext = get_string('subscribe', 'forum');
190                         }
191                         echo $OUTPUT->heading($forumname, 2, 'headingblock header');
192                         $suburl = new moodle_url('/mod/forum/subscribe.php', array('id' => $newsforum->id, 'sesskey' => sesskey()));
193                         echo html_writer::tag('div', html_writer::link($suburl, $subtext), array('class' => 'subscribelink'));
194                     } else {
195                         echo $OUTPUT->heading($forumname, 2, 'headingblock header');
196                     }
198                     forum_print_latest_discussions($SITE, $newsforum, $SITE->newsitems, 'plain', 'p.modified DESC');
200                     //end site news forum div container
201                     echo html_writer::end_tag('div');
203                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipsitenews'));
204                 }
205             break;
207             case FRONTPAGECOURSELIST:
208                 $ncourses = $DB->count_records('course');
209                 if (isloggedin() and !$hassiteconfig and !isguestuser() and empty($CFG->disablemycourses)) {
210                     echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(get_string('mycourses'))), array('href'=>'#skipmycourses', 'class'=>'skip-block'));
212                     //wrap frontpage course list in div container
213                     echo html_writer::start_tag('div', array('id'=>'frontpage-course-list'));
215                     echo $OUTPUT->heading(get_string('mycourses'), 2, 'headingblock header');
216                     print_my_moodle();
218                     //end frontpage course list div container
219                     echo html_writer::end_tag('div');
221                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipmycourses'));
222                 } else if ((!$hassiteconfig and !isguestuser()) or ($ncourses <= FRONTPAGECOURSELIMIT)) {
223                     // admin should not see list of courses when there are too many of them
224                     echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(get_string('availablecourses'))), array('href'=>'#skipavailablecourses', 'class'=>'skip-block'));
226                     //wrap frontpage course list in div container
227                     echo html_writer::start_tag('div', array('id'=>'frontpage-course-list'));
229                     echo $OUTPUT->heading(get_string('availablecourses'), 2, 'headingblock header');
230                     print_courses(0);
232                     //end frontpage course list div container
233                     echo html_writer::end_tag('div');
235                     echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipavailablecourses'));
236                 } else {
237                     echo html_writer::tag('div', get_string('therearecourses', '', $ncourses), array('class' => 'notifyproblem'));
238                     print_course_search('', false, 'short');
239                 }
240             break;
242             case FRONTPAGECATEGORYNAMES:
243                 echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(get_string('categories'))), array('href'=>'#skipcategories', 'class'=>'skip-block'));
245                 //wrap frontpage category names in div container
246                 echo html_writer::start_tag('div', array('id'=>'frontpage-category-names'));
248                 echo $OUTPUT->heading(get_string('categories'), 2, 'headingblock header');
249                 echo $OUTPUT->box_start('generalbox categorybox');
250                 print_whole_category_list(NULL, NULL, NULL, -1, false);
251                 echo $OUTPUT->box_end();
252                 print_course_search('', false, 'short');
254                 //end frontpage category names div container
255                 echo html_writer::end_tag('div');
257                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcategories'));
258             break;
260             case FRONTPAGECATEGORYCOMBO:
261                 echo html_writer::tag('a', get_string('skipa', 'access', textlib::strtolower(get_string('courses'))), array('href'=>'#skipcourses', 'class'=>'skip-block'));
263                 //wrap frontpage category combo in div container
264                 echo html_writer::start_tag('div', array('id'=>'frontpage-category-combo'));
266                 echo $OUTPUT->heading(get_string('courses'), 2, 'headingblock header');
267                 $renderer = $PAGE->get_renderer('core','course');
268                 // if there are too many courses, building course category tree could be slow,
269                 // users should go to course index page to see the whole list.
270                 $coursecount = $DB->count_records('course');
271                 if (empty($CFG->numcoursesincombo)) {
272                     // if $CFG->numcoursesincombo hasn't been set, use default value 500
273                     $CFG->numcoursesincombo = 500;
274                 }
275                 if ($coursecount > $CFG->numcoursesincombo) {
276                     $link = new moodle_url('/course/');
277                     echo $OUTPUT->notification(get_string('maxnumcoursesincombo', 'moodle', array('link'=>$link->out(), 'maxnumofcourses'=>$CFG->numcoursesincombo, 'numberofcourses'=>$coursecount)));
278                 } else {
279                     echo $renderer->course_category_tree(get_course_category_tree());
280                 }
281                 print_course_search('', false, 'short');
283                 //end frontpage category combo div container
284                 echo html_writer::end_tag('div');
286                 echo html_writer::tag('span', '', array('class'=>'skip-block-to', 'id'=>'skipcourses'));
287             break;
289             case FRONTPAGETOPICONLY:    // Do nothing!!  :-)
290             break;
292         }
293         echo '<br />';
294     }
296     echo $OUTPUT->footer();