/**
* This function return the XML rss contents about the anonforum
* It returns false if something is wrong
*
* @param stdClass $anonforum the anonforum object
* @param string $sql the SQL used to retrieve the contents from the database
* @param array $params the SQL parameters used
* @param object $context the context this anonforum relates to
* @return bool|string false if the contents is empty, otherwise the contents of the feed is returned
*
* @Todo MDL-31129 implement post attachment handling
*/
function anonforum_rss_feed_contents($anonforum, $sql, $params, $context)
{
global $CFG, $DB, $USER;
$status = true;
$recs = $DB->get_recordset_sql($sql, $params, 0, $anonforum->rssarticles);
//set a flag. Are we displaying discussions or posts?
$isdiscussion = true;
if (!empty($anonforum->rsstype) && $anonforum->rsstype != 1) {
$isdiscussion = false;
}
if (!($cm = get_coursemodule_from_instance('anonforum', $anonforum->id, $anonforum->course))) {
print_error('invalidcoursemodule');
}
$formatoptions = new stdClass();
$items = array();
foreach ($recs as $rec) {
$item = new stdClass();
$discussion = new stdClass();
$discussion->id = $rec->discussionid;
$discussion->groupid = $rec->groupid;
$discussion->timestart = $rec->timestart;
$discussion->timeend = $rec->timeend;
$post = null;
if (!$isdiscussion) {
$post = new stdClass();
$post->id = $rec->postid;
$post->parent = $rec->postparent;
$post->userid = $rec->userid;
}
if ($isdiscussion && !anonforum_user_can_see_discussion($anonforum, $discussion, $context)) {
// This is a discussion which the user has no permission to view
$item->title = get_string('anonforumsubjecthidden', 'anonforum');
$message = get_string('anonforumbodyhidden', 'anonforum');
$item->author = get_string('anonforumauthorhidden', 'anonforum');
} else {
if (!$isdiscussion && !anonforum_user_can_see_post($anonforum, $discussion, $post, $USER, $cm)) {
// This is a post which the user has no permission to view
$item->title = get_string('anonforumsubjecthidden', 'anonforum');
$message = get_string('anonforumbodyhidden', 'anonforum');
$item->author = get_string('anonforumauthorhidden', 'anonforum');
} else {
// The user must have permission to view
if ($isdiscussion && !empty($rec->discussionname)) {
$item->title = format_string($rec->discussionname);
} else {
if (!empty($rec->postsubject)) {
$item->title = format_string($rec->postsubject);
} else {
//we should have an item title by now but if we dont somehow then substitute something somewhat meaningful
$item->title = format_string($anonforum->name . ' ' . userdate($rec->postcreated, get_string('strftimedatetimeshort', 'langconfig')));
}
}
if (empty($rec->anonymouspost)) {
$user = new stdClass();
$user->firstname = $rec->userfirstname;
$user->lastname = $rec->userlastname;
$item->author = fullname($user);
} else {
$item->author = get_string('anonymoususer', 'anonforum');
}
$message = file_rewrite_pluginfile_urls($rec->postmessage, 'pluginfile.php', $context->id, 'mod_anonforum', 'post', $rec->postid);
$formatoptions->trusted = $rec->posttrust;
}
}
if ($isdiscussion) {
$item->link = $CFG->wwwroot . "/mod/anonforum/discuss.php?d=" . $rec->discussionid;
} else {
$item->link = $CFG->wwwroot . "/mod/anonforum/discuss.php?d=" . $rec->discussionid . "&parent=" . $rec->postid;
}
$formatoptions->trusted = $rec->posttrust;
$item->description = format_text($message, $rec->postformat, $formatoptions, $anonforum->course);
//TODO: MDL-31129 implement post attachment handling
/*if (!$isdiscussion) {
$post_file_area_name = str_replace('//', '/', "$anonforum->course/$CFG->moddata/anonforum/$anonforum->id/$rec->postid");
$post_files = get_directory_list("$CFG->dataroot/$post_file_area_name");
if (!empty($post_files)) {
$item->attachments = array();
}
}*/
$item->pubdate = $rec->postcreated;
$items[] = $item;
}
$recs->close();
// Create the RSS header.
$header = rss_standard_header(strip_tags(format_string($anonforum->name, true)), $CFG->wwwroot . "/mod/anonforum/view.php?f=" . $anonforum->id, format_string($anonforum->intro, true));
// TODO: fix format
// Now all the RSS items, if there are any.
$articles = '';
if (!empty($items)) {
$articles = rss_add_items($items);
}
// Create the RSS footer.
$footer = rss_standard_footer();
return $header . $articles . $footer;
}
/**
* Prints the discussion view screen for a anonforum.
*
* @global object
* @global object
* @param object $course The current course object.
* @param object $anonforum Forum to be printed.
* @param int $maxdiscussions .
* @param string $displayformat The display format to use (optional).
* @param string $sort Sort arguments for database query (optional).
* @param int $groupmode Group mode of the anonforum (optional).
* @param void $unused (originally current group)
* @param int $page Page mode, page to display (optional).
* @param int $perpage The maximum number of discussions per page(optional)
*
*/
function anonforum_print_latest_discussions($course, $anonforum, $maxdiscussions = -1, $displayformat = 'plain', $sort = '', $currentgroup = -1, $groupmode = -1, $page = -1, $perpage = 100, $cm = NULL)
{
global $CFG, $USER, $OUTPUT;
if (!$cm) {
if (!($cm = get_coursemodule_from_instance('anonforum', $anonforum->id, $anonforum->course))) {
print_error('invalidcoursemodule');
}
}
$context = context_module::instance($cm->id);
if (empty($sort)) {
$sort = "d.timemodified DESC";
}
$olddiscussionlink = false;
// Sort out some defaults
if ($perpage <= 0) {
$perpage = 0;
$page = -1;
}
if ($maxdiscussions == 0) {
// all discussions - backwards compatibility
$page = -1;
$perpage = 0;
if ($displayformat == 'plain') {
$displayformat = 'header';
// Abbreviate display by default
}
} else {
if ($maxdiscussions > 0) {
$page = -1;
$perpage = $maxdiscussions;
}
}
$fullpost = false;
if ($displayformat == 'plain') {
$fullpost = true;
}
// Decide if current user is allowed to see ALL the current discussions or not
// First check the group stuff
if ($currentgroup == -1 or $groupmode == -1) {
$groupmode = groups_get_activity_groupmode($cm, $course);
$currentgroup = groups_get_activity_group($cm);
}
$groups = array();
//cache
// If the user can post discussions, then this is a good place to put the
// button for it. We do not show the button if we are showing site news
// and the current user is a guest.
$canstart = anonforum_user_can_post_discussion($anonforum, $currentgroup, $groupmode, $cm, $context);
if (!$canstart and $anonforum->type !== 'news') {
if (isguestuser() or !isloggedin()) {
$canstart = true;
}
if (!is_enrolled($context) and !is_viewing($context)) {
// allow guests and not-logged-in to see the button - they are prompted to log in after clicking the link
// normal users with temporary guest access see this button too, they are asked to enrol instead
// do not show the button to users with suspended enrolments here
$canstart = enrol_selfenrol_available($course->id);
}
}
if ($canstart) {
echo '<div class="singlebutton anonforumaddnew">';
echo "<form id=\"newdiscussionform\" method=\"get\" action=\"{$CFG->wwwroot}/mod/anonforum/post.php\">";
echo '<div>';
echo "<input type=\"hidden\" name=\"anonforum\" value=\"{$anonforum->id}\" />";
switch ($anonforum->type) {
case 'news':
case 'blog':
$buttonadd = get_string('addanewtopic', 'anonforum');
break;
case 'qanda':
$buttonadd = get_string('addanewquestion', 'anonforum');
break;
default:
$buttonadd = get_string('addanewdiscussion', 'anonforum');
break;
}
echo '<input type="submit" value="' . $buttonadd . '" />';
echo '</div>';
echo '</form>';
echo "</div>\n";
} else {
if (isguestuser() or !isloggedin() or $anonforum->type == 'news') {
// no button and no info
} else {
if ($groupmode and has_capability('mod/anonforum:startdiscussion', $context)) {
// inform users why they can not post new discussion
if ($currentgroup) {
echo $OUTPUT->notification(get_string('cannotadddiscussion', 'anonforum'));
} else {
echo $OUTPUT->notification(get_string('cannotadddiscussionall', 'anonforum'));
}
}
}
}
// Get all the recent discussions we're allowed to see
$getuserlastmodified = $displayformat == 'header';
if (!($discussions = anonforum_get_discussions($cm, $sort, $fullpost, null, $maxdiscussions, $getuserlastmodified, $page, $perpage))) {
echo '<div class="anonforumnodiscuss">';
if ($anonforum->type == 'news') {
echo '(' . get_string('nonews', 'anonforum') . ')';
} else {
if ($anonforum->type == 'qanda') {
echo '(' . get_string('noquestions', 'anonforum') . ')';
} else {
echo '(' . get_string('nodiscussions', 'anonforum') . ')';
}
}
echo "</div>\n";
return;
}
// If we want paging
if ($page != -1) {
///Get the number of discussions found
$numdiscussions = anonforum_get_discussions_count($cm);
///Show the paging bar
echo $OUTPUT->paging_bar($numdiscussions, $page, $perpage, "view.php?f={$anonforum->id}");
if ($numdiscussions > 1000) {
// saves some memory on sites with very large anonymous forums
$replies = anonforum_count_discussion_replies($anonforum->id, $sort, $maxdiscussions, $page, $perpage);
} else {
$replies = anonforum_count_discussion_replies($anonforum->id);
}
} else {
$replies = anonforum_count_discussion_replies($anonforum->id);
if ($maxdiscussions > 0 and $maxdiscussions <= count($discussions)) {
$olddiscussionlink = true;
}
}
$canviewparticipants = has_capability('moodle/course:viewparticipants', $context);
$strdatestring = get_string('strftimerecentfull');
// Check if the anonymous forum is tracked.
if ($cantrack = anonforum_tp_can_track_anonforums($anonforum)) {
$anonforumtracked = anonforum_tp_is_tracked($anonforum);
} else {
$anonforumtracked = false;
}
if ($anonforumtracked) {
$unreads = anonforum_get_discussions_unread($cm);
} else {
$unreads = array();
}
if ($displayformat == 'header') {
echo '<table cellspacing="0" class="anonforumheaderlist">';
echo '<thead>';
echo '<tr>';
echo '<th class="header topic" scope="col">' . get_string('discussion', 'anonforum') . '</th>';
echo '<th class="header author" colspan="2" scope="col">' . get_string('startedby', 'anonforum') . '</th>';
if ($groupmode > 0) {
echo '<th class="header group" scope="col">' . get_string('group') . '</th>';
}
if (has_capability('mod/anonforum:viewdiscussion', $context)) {
echo '<th class="header replies" scope="col">' . get_string('replies', 'anonforum') . '</th>';
// If the anonymous forum can be tracked, display the unread column.
if ($cantrack) {
echo '<th class="header replies" scope="col">' . get_string('unread', 'anonforum');
if ($anonforumtracked) {
echo '<a title="' . get_string('markallread', 'anonforum') . '" href="' . $CFG->wwwroot . '/mod/anonforum/markposts.php?f=' . $anonforum->id . '&mark=read&returnpage=view.php">' . '<img src="' . $OUTPUT->pix_url('t/markasread') . '" class="iconsmall" alt="' . get_string('markallread', 'anonforum') . '" /></a>';
}
echo '</th>';
}
}
echo '<th class="header lastpost" scope="col">' . get_string('lastpost', 'anonforum') . '</th>';
echo '</tr>';
echo '</thead>';
echo '<tbody>';
}
foreach ($discussions as $discussion) {
if (!empty($replies[$discussion->discussion])) {
$discussion->replies = $replies[$discussion->discussion]->replies;
$discussion->lastpostid = $replies[$discussion->discussion]->lastpostid;
} else {
$discussion->replies = 0;
}
// SPECIAL CASE: The front page can display a news item post to non-logged in users.
// All posts are read in this case.
if (!$anonforumtracked) {
$discussion->unread = '-';
} else {
if (empty($USER)) {
$discussion->unread = 0;
} else {
if (empty($unreads[$discussion->discussion])) {
$discussion->unread = 0;
} else {
$discussion->unread = $unreads[$discussion->discussion];
}
}
}
if (isloggedin()) {
$ownpost = $discussion->userid == $USER->id;
} else {
$ownpost = false;
}
// Use discussion name instead of subject of first post
$discussion->subject = $discussion->name;
switch ($displayformat) {
case 'header':
if ($groupmode > 0) {
if (isset($groups[$discussion->groupid])) {
$group = $groups[$discussion->groupid];
} else {
$group = $groups[$discussion->groupid] = groups_get_group($discussion->groupid);
}
} else {
$group = -1;
}
anonforum_print_discussion_header($discussion, $anonforum, $group, $strdatestring, $cantrack, $anonforumtracked, $canviewparticipants, $context);
break;
default:
$link = false;
if ($discussion->replies) {
$link = true;
} else {
$modcontext = context_module::instance($cm->id);
$link = anonforum_user_can_see_discussion($anonforum, $discussion, $modcontext, $USER);
}
$discussion->anonforum = $anonforum->id;
anonforum_print_post($discussion, $discussion, $anonforum, $cm, $course, $ownpost, 0, $link, false, '', null, true, $anonforumtracked);
break;
}
}
if ($displayformat == "header") {
echo '</tbody>';
echo '</table>';
}
if ($olddiscussionlink) {
if ($anonforum->type == 'news') {
$strolder = get_string('oldertopics', 'anonforum');
} else {
$strolder = get_string('olderdiscussions', 'anonforum');
}
echo '<div class="anonforumolddiscuss">';
echo '<a href="' . $CFG->wwwroot . '/mod/anonforum/view.php?f=' . $anonforum->id . '&showall=1">';
echo $strolder . '</a> ...</div>';
}
if ($page != -1) {
///Show the paging bar
echo $OUTPUT->paging_bar($numdiscussions, $page, $perpage, "view.php?f={$anonforum->id}");
}
}
