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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* @package mod-forum
* @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once(dirname(__FILE__) . '/../../config.php');
require_once($CFG->dirroot . '/course/lib.php');
require_once($CFG->dirroot . '/mod/forum/lib.php');
require_once($CFG->libdir . '/rsslib.php');
$id = optional_param('id', 0, PARAM_INT); // Course id
$subscribe = optional_param('subscribe', null, PARAM_INT); // Subscribe/Unsubscribe all forums
$url = new moodle_url('/mod/forum/index.php', array('id'=>$id));
if ($subscribe !== null) {
require_sesskey();
$url->param('subscribe', $subscribe);
}
$PAGE->set_url($url);
if ($id) {
if (! $course = $DB->get_record('course', array('id' => $id))) {
print_error('invalidcourseid');
}
} else {
$course = get_site();
}
require_course_login($course);
$PAGE->set_pagelayout('incourse');
$coursecontext = get_context_instance(CONTEXT_COURSE, $course->id);
unset($SESSION->fromdiscussion);
add_to_log($course->id, 'forum', 'view forums', "index.php?id=$course->id");
$strforums = get_string('forums', 'forum');
$strforum = get_string('forum', 'forum');
$strdescription = get_string('description');
$strdiscussions = get_string('discussions', 'forum');
$strsubscribed = get_string('subscribed', 'forum');
$strunreadposts = get_string('unreadposts', 'forum');
$strtracking = get_string('tracking', 'forum');
$strmarkallread = get_string('markallread', 'forum');
$strtrackforum = get_string('trackforum', 'forum');
$strnotrackforum = get_string('notrackforum', 'forum');
$strsubscribe = get_string('subscribe', 'forum');
$strunsubscribe = get_string('unsubscribe', 'forum');
$stryes = get_string('yes');
$strno = get_string('no');
$strrss = get_string('rss');
$searchform = forum_search_form($course);
// Start of the table for General Forums
$generaltable = new html_table();
$generaltable->head = array ($strforum, $strdescription, $strdiscussions);
$generaltable->align = array ('left', 'left', 'center');
if ($usetracking = forum_tp_can_track_forums()) {
$untracked = forum_tp_get_untracked_forums($USER->id, $course->id);
$generaltable->head[] = $strunreadposts;
$generaltable->align[] = 'center';
$generaltable->head[] = $strtracking;
$generaltable->align[] = 'center';
}
$subscribed_forums = forum_get_subscribed_forums($course);
$can_subscribe = is_enrolled($coursecontext);
if ($can_subscribe) {
$generaltable->head[] = $strsubscribed;
$generaltable->align[] = 'center';
}
if ($show_rss = (($can_subscribe || $course->id == SITEID) &&
isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) &&
$CFG->enablerssfeeds && $CFG->forum_enablerssfeeds)) {
$generaltable->head[] = $strrss;
$generaltable->align[] = 'center';
}
$usesections = course_format_uses_sections($course->format);
$sections = get_all_sections($course->id);
$table = new html_table();
// Parse and organise all the forums. Most forums are course modules but
// some special ones are not. These get placed in the general forums
// category with the forums in section 0.
$forums = $DB->get_records('forum', array('course' => $course->id));
$generalforums = array();
$learningforums = array();
$modinfo =& get_fast_modinfo($course);
if (!isset($modinfo->instances['forum'])) {
$modinfo->instances['forum'] = array();
}
foreach ($modinfo->instances['forum'] as $forumid=>$cm) {
if (!$cm->uservisible or !isset($forums[$forumid])) {
continue;
}
$forum = $forums[$forumid];
if (!$context = get_context_instance(CONTEXT_MODULE, $cm->id)) {
continue; // Shouldn't happen
}
if (!has_capability('mod/forum:viewdiscussion', $context)) {
continue;
}
// fill two type array - order in modinfo is the same as in course
if ($forum->type == 'news' or $forum->type == 'social') {
$generalforums[$forum->id] = $forum;
} else if ($course->id == SITEID or empty($cm->sectionnum)) {
$generalforums[$forum->id] = $forum;
} else {
$learningforums[$forum->id] = $forum;
}
}
/// Do course wide subscribe/unsubscribe
if (!is_null($subscribe) and !isguestuser()) {
foreach ($modinfo->instances['forum'] as $forumid=>$cm) {
$forum = $forums[$forumid];
$modcontext = get_context_instance(CONTEXT_MODULE, $cm->id);
$cansub = false;
if (has_capability('mod/forum:viewdiscussion', $modcontext)) {
$cansub = true;
}
if ($cansub && $cm->visible == 0 &&
!has_capability('mod/forum:managesubscriptions', $modcontext))
{
$cansub = false;
}
if (!forum_is_forcesubscribed($forum)) {
$subscribed = forum_is_subscribed($USER->id, $forum);
if ((has_capability('moodle/course:manageactivities', $coursecontext, $USER->id) || $forum->forcesubscribe != FORUM_DISALLOWSUBSCRIBE) && $subscribe && !$subscribed && $cansub) {
forum_subscribe($USER->id, $forumid);
} else if (!$subscribe && $subscribed) {
forum_unsubscribe($USER->id, $forumid);
}
}
}
$returnto = forum_go_back_to("index.php?id=$course->id");
if ($subscribe) {
add_to_log($course->id, 'forum', 'subscribeall', "index.php?id=$course->id", $course->id);
redirect($returnto, get_string('nowallsubscribed', 'forum', format_string($course->shortname)), 1);
} else {
add_to_log($course->id, 'forum', 'unsubscribeall', "index.php?id=$course->id", $course->id);
redirect($returnto, get_string('nowallunsubscribed', 'forum', format_string($course->shortname)), 1);
}
}
/// First, let's process the general forums and build up a display
if ($generalforums) {
foreach ($generalforums as $forum) {
$cm = $modinfo->instances['forum'][$forum->id];
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$count = forum_count_discussions($forum, $cm, $course);
if ($usetracking) {
if ($forum->trackingtype == FORUM_TRACKING_OFF) {
$unreadlink = '-';
$trackedlink = '-';
} else {
if (isset($untracked[$forum->id])) {
$unreadlink = '-';
} else if ($unread = forum_tp_count_forum_unread_posts($cm, $course)) {
$unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
$unreadlink .= '<a title="'.$strmarkallread.'" href="markposts.php?f='.
$forum->id.'&amp;mark=read"><img src="'.$OUTPUT->pix_url('t/clear') . '" alt="'.$strmarkallread.'" /></a></span>';
} else {
$unreadlink = '<span class="read">0</span>';
}
if ($forum->trackingtype == FORUM_TRACKING_ON) {
$trackedlink = $stryes;
} else {
$aurl = new moodle_url('/mod/forum/settracking.php', array('id'=>$forum->id));
if (!isset($untracked[$forum->id])) {
$trackedlink = $OUTPUT->single_button($aurl, $stryes, 'post', array('title'=>$strnotrackforum));
} else {
$trackedlink = $OUTPUT->single_button($aurl, $strno, 'post', array('title'=>$strtrackforum));
}
}
}
}
$forum->intro = shorten_text(format_module_intro('forum', $forum, $cm->id), $CFG->forum_shortpost);
$forumname = format_string($forum->name, true);;
if ($cm->visible) {
$style = '';
} else {
$style = 'class="dimmed"';
}
$forumlink = "<a href=\"view.php?f=$forum->id\" $style>".format_string($forum->name,true)."</a>";
$discussionlink = "<a href=\"view.php?f=$forum->id\" $style>".$count."</a>";
$row = array ($forumlink, $forum->intro, $discussionlink);
if ($usetracking) {
$row[] = $unreadlink;
$row[] = $trackedlink; // Tracking.
}
if ($can_subscribe) {
if ($forum->forcesubscribe != FORUM_DISALLOWSUBSCRIBE) {
$row[] = forum_get_subscribe_link($forum, $context, array('subscribed' => $stryes,
'unsubscribed' => $strno, 'forcesubscribed' => $stryes,
'cantsubscribe' => '-'), false, false, true, $subscribed_forums);
} else {
$row[] = '-';
}
}
//If this forum has RSS activated, calculate it
if ($show_rss) {
if ($forum->rsstype and $forum->rssarticles) {
//Calculate the tooltip text
if ($forum->rsstype == 1) {
$tooltiptext = get_string('rsssubscriberssdiscussions', 'forum');
} else {
$tooltiptext = get_string('rsssubscriberssposts', 'forum');
}
//Get html code for RSS link
$row[] = rss_get_link($context->id, $USER->id, 'mod_forum', $forum->id, $tooltiptext);
} else {
$row[] = '&nbsp;';
}
}
$generaltable->data[] = $row;
}
}
// Start of the table for Learning Forums
$learningtable = new html_table();
$learningtable->head = array ($strforum, $strdescription, $strdiscussions);
$learningtable->align = array ('left', 'left', 'center');
if ($usetracking) {
$learningtable->head[] = $strunreadposts;
$learningtable->align[] = 'center';
$learningtable->head[] = $strtracking;
$learningtable->align[] = 'center';
}
if ($can_subscribe) {
$learningtable->head[] = $strsubscribed;
$learningtable->align[] = 'center';
}
if ($show_rss = (($can_subscribe || $course->id == SITEID) &&
isset($CFG->enablerssfeeds) && isset($CFG->forum_enablerssfeeds) &&
$CFG->enablerssfeeds && $CFG->forum_enablerssfeeds)) {
$learningtable->head[] = $strrss;
$learningtable->align[] = 'center';
}
/// Now let's process the learning forums
if ($course->id != SITEID) { // Only real courses have learning forums
// This is only required for use here and there needs to be a check to see if
// course id is the same as the site id. Moved from above. MDL-27334
$strsectionname = get_string('sectionname', 'format_'.$course->format);
// Add extra field for section number, at the front
array_unshift($learningtable->head, $strsectionname);
array_unshift($learningtable->align, 'center');
if ($learningforums) {
$currentsection = '';
foreach ($learningforums as $forum) {
$cm = $modinfo->instances['forum'][$forum->id];
$context = get_context_instance(CONTEXT_MODULE, $cm->id);
$count = forum_count_discussions($forum, $cm, $course);
if ($usetracking) {
if ($forum->trackingtype == FORUM_TRACKING_OFF) {
$unreadlink = '-';
$trackedlink = '-';
} else {
if (isset($untracked[$forum->id])) {
$unreadlink = '-';
} else if ($unread = forum_tp_count_forum_unread_posts($cm, $course)) {
$unreadlink = '<span class="unread"><a href="view.php?f='.$forum->id.'">'.$unread.'</a>';
$unreadlink .= '<a title="'.$strmarkallread.'" href="markposts.php?f='.
$forum->id.'&amp;mark=read"><img src="'.$OUTPUT->pix_url('t/clear') . '" alt="'.$strmarkallread.'" /></a></span>';
} else {
$unreadlink = '<span class="read">0</span>';
}
if ($forum->trackingtype == FORUM_TRACKING_ON) {
$trackedlink = $stryes;
} else {
$aurl = new moodle_url('/mod/forum/settracking.php', array('id'=>$forum->id));
if (!isset($untracked[$forum->id])) {
$trackedlink = $OUTPUT->single_button($aurl, $stryes, 'post', array('title'=>$strnotrackforum));
} else {
$trackedlink = $OUTPUT->single_button($aurl, $strno, 'post', array('title'=>$strtrackforum));
}
}
}
}
$forum->intro = shorten_text(format_module_intro('forum', $forum, $cm->id), $CFG->forum_shortpost);
if ($cm->sectionnum != $currentsection) {
$printsection = get_section_name($course, $sections[$cm->sectionnum]);
if ($currentsection) {
$learningtable->data[] = 'hr';
}
$currentsection = $cm->sectionnum;
} else {
$printsection = '';
}
$forumname = format_string($forum->name,true);;
if ($cm->visible) {
$style = '';
} else {
$style = 'class="dimmed"';
}
$forumlink = "<a href=\"view.php?f=$forum->id\" $style>".format_string($forum->name,true)."</a>";
$discussionlink = "<a href=\"view.php?f=$forum->id\" $style>".$count."</a>";
$row = array ($printsection, $forumlink, $forum->intro, $discussionlink);
if ($usetracking) {
$row[] = $unreadlink;
$row[] = $trackedlink; // Tracking.
}
if ($can_subscribe) {
if ($forum->forcesubscribe != FORUM_DISALLOWSUBSCRIBE) {
$row[] = forum_get_subscribe_link($forum, $context, array('subscribed' => $stryes,
'unsubscribed' => $strno, 'forcesubscribed' => $stryes,
'cantsubscribe' => '-'), false, false, true, $subscribed_forums);
} else {
$row[] = '-';
}
}
//If this forum has RSS activated, calculate it
if ($show_rss) {
if ($forum->rsstype and $forum->rssarticles) {
//Calculate the tolltip text
if ($forum->rsstype == 1) {
$tooltiptext = get_string('rsssubscriberssdiscussions', 'forum');
} else {
$tooltiptext = get_string('rsssubscriberssposts', 'forum');
}
//Get html code for RSS link
$row[] = rss_get_link($context->id, $USER->id, 'mod_forum', $forum->id, $tooltiptext);
} else {
$row[] = '&nbsp;';
}
}
$learningtable->data[] = $row;
}
}
}
/// Output the page
$PAGE->navbar->add($strforums);
$PAGE->set_title("$course->shortname: $strforums");
$PAGE->set_heading($course->fullname);
$PAGE->set_button($searchform);
echo $OUTPUT->header();
if (!isguestuser() && isloggedin()) {
echo $OUTPUT->box_start('subscription');
echo html_writer::tag('div',
html_writer::link(new moodle_url('/mod/forum/index.php', array('id'=>$course->id, 'subscribe'=>1, 'sesskey'=>sesskey())),
get_string('allsubscribe', 'forum')),
array('class'=>'helplink'));
echo html_writer::tag('div',
html_writer::link(new moodle_url('/mod/forum/index.php', array('id'=>$course->id, 'subscribe'=>0, 'sesskey'=>sesskey())),
get_string('allunsubscribe', 'forum')),
array('class'=>'helplink'));
echo $OUTPUT->box_end();
echo $OUTPUT->box('&nbsp;', 'clearer');
}
if ($generalforums) {
echo $OUTPUT->heading(get_string('generalforums', 'forum'));
echo html_writer::table($generaltable);
}
if ($learningforums) {
echo $OUTPUT->heading(get_string('learningforums', 'forum'));
echo html_writer::table($learningtable);
}
echo $OUTPUT->footer();
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