2 // This file is part of Moodle - http://moodle.org/
4 // Moodle is free software: you can redistribute it and/or modify
5 // it under the terms of the GNU General Public License as published by
6 // the Free Software Foundation, either version 3 of the License, or
7 // (at your option) any later version.
9 // Moodle is distributed in the hope that it will be useful,
10 // but WITHOUT ANY WARRANTY; without even the implied warranty of
11 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
12 // GNU General Public License for more details.
14 // You should have received a copy of the GNU General Public License
15 // along with Moodle. If not, see <http://www.gnu.org/licenses/>.
20 * @copyright 1999 onwards Martin Dougiamas {@link http://moodle.com}
21 * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
24 defined('MOODLE_INTERNAL') || die();
26 /** Include required files */
27 require_once($CFG->libdir.'/filelib.php');
28 require_once($CFG->libdir.'/eventslib.php');
29 require_once($CFG->dirroot.'/user/selector/lib.php');
30 require_once($CFG->dirroot.'/mod/forum/post_form.php');
32 /// CONSTANTS ///////////////////////////////////////////////////////////
34 define('FORUM_MODE_FLATOLDEST', 1);
35 define('FORUM_MODE_FLATNEWEST', -1);
36 define('FORUM_MODE_THREADED', 2);
37 define('FORUM_MODE_NESTED', 3);
39 define('FORUM_CHOOSESUBSCRIBE', 0);
40 define('FORUM_FORCESUBSCRIBE', 1);
41 define('FORUM_INITIALSUBSCRIBE', 2);
42 define('FORUM_DISALLOWSUBSCRIBE',3);
44 define('FORUM_TRACKING_OFF', 0);
45 define('FORUM_TRACKING_OPTIONAL', 1);
46 define('FORUM_TRACKING_ON', 2);
48 define('FORUM_MAILED_PENDING', 0);
49 define('FORUM_MAILED_SUCCESS', 1);
50 define('FORUM_MAILED_ERROR', 2);
52 if (!defined('FORUM_CRON_USER_CACHE')) {
53 /** Defines how many full user records are cached in forum cron. */
54 define('FORUM_CRON_USER_CACHE', 5000);
57 /// STANDARD FUNCTIONS ///////////////////////////////////////////////////////////
60 * Given an object containing all the necessary data,
61 * (defined by the form in mod_form.php) this function
62 * will create a new instance and return the id number
63 * of the new instance.
65 * @param stdClass $forum add forum instance
66 * @param mod_forum_mod_form $mform
67 * @return int intance id
69 function forum_add_instance($forum, $mform = null) {
72 $forum->timemodified = time();
74 if (empty($forum->assessed)) {
78 if (empty($forum->ratingtime) or empty($forum->assessed)) {
79 $forum->assesstimestart = 0;
80 $forum->assesstimefinish = 0;
83 $forum->id = $DB->insert_record('forum', $forum);
84 $modcontext = context_module::instance($forum->coursemodule);
86 if ($forum->type == 'single') { // Create related discussion.
87 $discussion = new stdClass();
88 $discussion->course = $forum->course;
89 $discussion->forum = $forum->id;
90 $discussion->name = $forum->name;
91 $discussion->assessed = $forum->assessed;
92 $discussion->message = $forum->intro;
93 $discussion->messageformat = $forum->introformat;
94 $discussion->messagetrust = trusttext_trusted(context_course::instance($forum->course));
95 $discussion->mailnow = false;
96 $discussion->groupid = -1;
100 $discussion->id = forum_add_discussion($discussion, null, $message);
102 if ($mform and $draftid = file_get_submitted_draft_itemid('introeditor')) {
103 // Ugly hack - we need to copy the files somehow.
104 $discussion = $DB->get_record('forum_discussions', array('id'=>$discussion->id), '*', MUST_EXIST);
105 $post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost), '*', MUST_EXIST);
107 $options = array('subdirs'=>true); // Use the same options as intro field!
108 $post->message = file_save_draft_area_files($draftid, $modcontext->id, 'mod_forum', 'post', $post->id, $options, $post->message);
109 $DB->set_field('forum_posts', 'message', $post->message, array('id'=>$post->id));
113 if ($forum->forcesubscribe == FORUM_INITIALSUBSCRIBE) {
114 $users = forum_get_potential_subscribers($modcontext, 0, 'u.id, u.email');
115 foreach ($users as $user) {
116 forum_subscribe($user->id, $forum->id);
120 forum_grade_item_update($forum);
127 * Given an object containing all the necessary data,
128 * (defined by the form in mod_form.php) this function
129 * will update an existing instance with new data.
132 * @param object $forum forum instance (with magic quotes)
133 * @return bool success
135 function forum_update_instance($forum, $mform) {
136 global $DB, $OUTPUT, $USER;
138 $forum->timemodified = time();
139 $forum->id = $forum->instance;
141 if (empty($forum->assessed)) {
142 $forum->assessed = 0;
145 if (empty($forum->ratingtime) or empty($forum->assessed)) {
146 $forum->assesstimestart = 0;
147 $forum->assesstimefinish = 0;
150 $oldforum = $DB->get_record('forum', array('id'=>$forum->id));
152 // MDL-3942 - if the aggregation type or scale (i.e. max grade) changes then recalculate the grades for the entire forum
153 // if scale changes - do we need to recheck the ratings, if ratings higher than scale how do we want to respond?
154 // for count and sum aggregation types the grade we check to make sure they do not exceed the scale (i.e. max score) when calculating the grade
155 if (($oldforum->assessed<>$forum->assessed) or ($oldforum->scale<>$forum->scale)) {
156 forum_update_grades($forum); // recalculate grades for the forum
159 if ($forum->type == 'single') { // Update related discussion and post.
160 $discussions = $DB->get_records('forum_discussions', array('forum'=>$forum->id), 'timemodified ASC');
161 if (!empty($discussions)) {
162 if (count($discussions) > 1) {
163 echo $OUTPUT->notification(get_string('warnformorepost', 'forum'));
165 $discussion = array_pop($discussions);
167 // try to recover by creating initial discussion - MDL-16262
168 $discussion = new stdClass();
169 $discussion->course = $forum->course;
170 $discussion->forum = $forum->id;
171 $discussion->name = $forum->name;
172 $discussion->assessed = $forum->assessed;
173 $discussion->message = $forum->intro;
174 $discussion->messageformat = $forum->introformat;
175 $discussion->messagetrust = true;
176 $discussion->mailnow = false;
177 $discussion->groupid = -1;
181 forum_add_discussion($discussion, null, $message);
183 if (! $discussion = $DB->get_record('forum_discussions', array('forum'=>$forum->id))) {
184 print_error('cannotadd', 'forum');
187 if (! $post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost))) {
188 print_error('cannotfindfirstpost', 'forum');
191 $cm = get_coursemodule_from_instance('forum', $forum->id);
192 $modcontext = context_module::instance($cm->id, MUST_EXIST);
194 $post = $DB->get_record('forum_posts', array('id'=>$discussion->firstpost), '*', MUST_EXIST);
195 $post->subject = $forum->name;
196 $post->message = $forum->intro;
197 $post->messageformat = $forum->introformat;
198 $post->messagetrust = trusttext_trusted($modcontext);
199 $post->modified = $forum->timemodified;
200 $post->userid = $USER->id; // MDL-18599, so that current teacher can take ownership of activities.
202 if ($mform and $draftid = file_get_submitted_draft_itemid('introeditor')) {
203 // Ugly hack - we need to copy the files somehow.
204 $options = array('subdirs'=>true); // Use the same options as intro field!
205 $post->message = file_save_draft_area_files($draftid, $modcontext->id, 'mod_forum', 'post', $post->id, $options, $post->message);
208 $DB->update_record('forum_posts', $post);
209 $discussion->name = $forum->name;
210 $DB->update_record('forum_discussions', $discussion);
213 $DB->update_record('forum', $forum);
215 $modcontext = context_module::instance($forum->coursemodule);
216 if (($forum->forcesubscribe == FORUM_INITIALSUBSCRIBE) && ($oldforum->forcesubscribe <> $forum->forcesubscribe)) {
217 $users = forum_get_potential_subscribers($modcontext, 0, 'u.id, u.email', '');
218 foreach ($users as $user) {
219 forum_subscribe($user->id, $forum->id);
223 forum_grade_item_update($forum);
230 * Given an ID of an instance of this module,
231 * this function will permanently delete the instance
232 * and any data that depends on it.
235 * @param int $id forum instance id
236 * @return bool success
238 function forum_delete_instance($id) {
241 if (!$forum = $DB->get_record('forum', array('id'=>$id))) {
244 if (!$cm = get_coursemodule_from_instance('forum', $forum->id)) {
247 if (!$course = $DB->get_record('course', array('id'=>$cm->course))) {
251 $context = context_module::instance($cm->id);
253 // now get rid of all files
254 $fs = get_file_storage();
255 $fs->delete_area_files($context->id);
259 if ($discussions = $DB->get_records('forum_discussions', array('forum'=>$forum->id))) {
260 foreach ($discussions as $discussion) {
261 if (!forum_delete_discussion($discussion, true, $course, $cm, $forum)) {
267 if (!$DB->delete_records('forum_subscriptions', array('forum'=>$forum->id))) {
271 forum_tp_delete_read_records(-1, -1, -1, $forum->id);
273 if (!$DB->delete_records('forum', array('id'=>$forum->id))) {
277 forum_grade_item_delete($forum);
284 * Indicates API features that the forum supports.
286 * @uses FEATURE_GROUPS
287 * @uses FEATURE_GROUPINGS
288 * @uses FEATURE_GROUPMEMBERSONLY
289 * @uses FEATURE_MOD_INTRO
290 * @uses FEATURE_COMPLETION_TRACKS_VIEWS
291 * @uses FEATURE_COMPLETION_HAS_RULES
292 * @uses FEATURE_GRADE_HAS_GRADE
293 * @uses FEATURE_GRADE_OUTCOMES
294 * @param string $feature
295 * @return mixed True if yes (some features may use other values)
297 function forum_supports($feature) {
299 case FEATURE_GROUPS: return true;
300 case FEATURE_GROUPINGS: return true;
301 case FEATURE_GROUPMEMBERSONLY: return true;
302 case FEATURE_MOD_INTRO: return true;
303 case FEATURE_COMPLETION_TRACKS_VIEWS: return true;
304 case FEATURE_COMPLETION_HAS_RULES: return true;
305 case FEATURE_GRADE_HAS_GRADE: return true;
306 case FEATURE_GRADE_OUTCOMES: return true;
307 case FEATURE_RATE: return true;
308 case FEATURE_BACKUP_MOODLE2: return true;
309 case FEATURE_SHOW_DESCRIPTION: return true;
310 case FEATURE_PLAGIARISM: return true;
312 default: return null;
318 * Obtains the automatic completion state for this forum based on any conditions
323 * @param object $course Course
324 * @param object $cm Course-module
325 * @param int $userid User ID
326 * @param bool $type Type of comparison (or/and; can be used as return value if no conditions)
327 * @return bool True if completed, false if not. (If no conditions, then return
328 * value depends on comparison type)
330 function forum_get_completion_state($course,$cm,$userid,$type) {
334 if (!($forum=$DB->get_record('forum',array('id'=>$cm->instance)))) {
335 throw new Exception("Can't find forum {$cm->instance}");
338 $result=$type; // Default return value
340 $postcountparams=array('userid'=>$userid,'forumid'=>$forum->id);
346 INNER JOIN {forum_discussions} fd ON fp.discussion=fd.id
348 fp.userid=:userid AND fd.forum=:forumid";
350 if ($forum->completiondiscussions) {
351 $value = $forum->completiondiscussions <=
352 $DB->count_records('forum_discussions',array('forum'=>$forum->id,'userid'=>$userid));
353 if ($type == COMPLETION_AND) {
354 $result = $result && $value;
356 $result = $result || $value;
359 if ($forum->completionreplies) {
360 $value = $forum->completionreplies <=
361 $DB->get_field_sql( $postcountsql.' AND fp.parent<>0',$postcountparams);
362 if ($type==COMPLETION_AND) {
363 $result = $result && $value;
365 $result = $result || $value;
368 if ($forum->completionposts) {
369 $value = $forum->completionposts <= $DB->get_field_sql($postcountsql,$postcountparams);
370 if ($type == COMPLETION_AND) {
371 $result = $result && $value;
373 $result = $result || $value;
381 * Create a message-id string to use in the custom headers of forum notification emails
383 * message-id is used by email clients to identify emails and to nest conversations
385 * @param int $postid The ID of the forum post we are notifying the user about
386 * @param int $usertoid The ID of the user being notified
387 * @param string $hostname The server's hostname
388 * @return string A unique message-id
390 function forum_get_email_message_id($postid, $usertoid, $hostname) {
391 return '<'.hash('sha256',$postid.'to'.$usertoid).'@'.$hostname.'>';
395 * Removes properties from user record that are not necessary
396 * for sending post notifications.
397 * @param stdClass $user
398 * @return void, $user parameter is modified
400 function forum_cron_minimise_user_record(stdClass $user) {
402 // We store large amount of users in one huge array,
403 // make sure we do not store info there we do not actually need
404 // in mail generation code or messaging.
406 unset($user->institution);
407 unset($user->department);
408 unset($user->address);
411 unset($user->currentlogin);
412 unset($user->description);
413 unset($user->descriptionformat);
417 * Function to be run periodically according to the moodle cron
418 * Finds all posts that have yet to be mailed out, and mails them
419 * out to all subscribers
424 * @uses CONTEXT_MODULE
425 * @uses CONTEXT_COURSE
430 function forum_cron() {
431 global $CFG, $USER, $DB;
435 // All users that are subscribed to any post that needs sending,
436 // please increase $CFG->extramemorylimit on large sites that
437 // send notifications to a large number of users.
439 $userscount = 0; // Cached user counter - count($users) in PHP is horribly slow!!!
442 $mailcount = array();
443 $errorcount = array();
446 $discussions = array();
449 $coursemodules = array();
450 $subscribedusers = array();
453 // Posts older than 2 days will not be mailed. This is to avoid the problem where
454 // cron has not been running for a long time, and then suddenly people are flooded
455 // with mail from the past few weeks or months
457 $endtime = $timenow - $CFG->maxeditingtime;
458 $starttime = $endtime - 48 * 3600; // Two days earlier
460 if ($posts = forum_get_unmailed_posts($starttime, $endtime, $timenow)) {
461 // Mark them all now as being mailed. It's unlikely but possible there
462 // might be an error later so that a post is NOT actually mailed out,
463 // but since mail isn't crucial, we can accept this risk. Doing it now
464 // prevents the risk of duplicated mails, which is a worse problem.
466 if (!forum_mark_old_posts_as_mailed($endtime)) {
467 mtrace('Errors occurred while trying to mark some posts as being mailed.');
468 return false; // Don't continue trying to mail them, in case we are in a cron loop
471 // checking post validity, and adding users to loop through later
472 foreach ($posts as $pid => $post) {
474 $discussionid = $post->discussion;
475 if (!isset($discussions[$discussionid])) {
476 if ($discussion = $DB->get_record('forum_discussions', array('id'=> $post->discussion))) {
477 $discussions[$discussionid] = $discussion;
479 mtrace('Could not find discussion '.$discussionid);
484 $forumid = $discussions[$discussionid]->forum;
485 if (!isset($forums[$forumid])) {
486 if ($forum = $DB->get_record('forum', array('id' => $forumid))) {
487 $forums[$forumid] = $forum;
489 mtrace('Could not find forum '.$forumid);
494 $courseid = $forums[$forumid]->course;
495 if (!isset($courses[$courseid])) {
496 if ($course = $DB->get_record('course', array('id' => $courseid))) {
497 $courses[$courseid] = $course;
499 mtrace('Could not find course '.$courseid);
504 if (!isset($coursemodules[$forumid])) {
505 if ($cm = get_coursemodule_from_instance('forum', $forumid, $courseid)) {
506 $coursemodules[$forumid] = $cm;
508 mtrace('Could not find course module for forum '.$forumid);
515 // caching subscribed users of each forum
516 if (!isset($subscribedusers[$forumid])) {
517 $modcontext = context_module::instance($coursemodules[$forumid]->id);
518 if ($subusers = forum_subscribed_users($courses[$courseid], $forums[$forumid], 0, $modcontext, "u.*")) {
519 foreach ($subusers as $postuser) {
520 // this user is subscribed to this forum
521 $subscribedusers[$forumid][$postuser->id] = $postuser->id;
523 if ($userscount > FORUM_CRON_USER_CACHE) {
524 // Store minimal user info.
525 $minuser = new stdClass();
526 $minuser->id = $postuser->id;
527 $users[$postuser->id] = $minuser;
529 // Cache full user record.
530 forum_cron_minimise_user_record($postuser);
531 $users[$postuser->id] = $postuser;
540 $mailcount[$pid] = 0;
541 $errorcount[$pid] = 0;
545 if ($users && $posts) {
547 $urlinfo = parse_url($CFG->wwwroot);
548 $hostname = $urlinfo['host'];
550 foreach ($users as $userto) {
552 @set_time_limit(120); // terminate if processing of any account takes longer than 2 minutes
554 mtrace('Processing user '.$userto->id);
556 // Init user caches - we keep the cache for one cycle only,
557 // otherwise it could consume too much memory.
558 if (isset($userto->username)) {
559 $userto = clone($userto);
561 $userto = $DB->get_record('user', array('id' => $userto->id));
562 forum_cron_minimise_user_record($userto);
564 $userto->viewfullnames = array();
565 $userto->canpost = array();
566 $userto->markposts = array();
568 // set this so that the capabilities are cached, and environment matches receiving user
569 cron_setup_user($userto);
572 foreach ($coursemodules as $forumid=>$unused) {
573 $coursemodules[$forumid]->cache = new stdClass();
574 $coursemodules[$forumid]->cache->caps = array();
575 unset($coursemodules[$forumid]->uservisible);
578 foreach ($posts as $pid => $post) {
580 // Set up the environment for the post, discussion, forum, course
581 $discussion = $discussions[$post->discussion];
582 $forum = $forums[$discussion->forum];
583 $course = $courses[$forum->course];
584 $cm =& $coursemodules[$forum->id];
586 // Do some checks to see if we can bail out now
587 // Only active enrolled users are in the list of subscribers
588 if (!isset($subscribedusers[$forum->id][$userto->id])) {
589 continue; // user does not subscribe to this forum
592 // Don't send email if the forum is Q&A and the user has not posted
593 // Initial topics are still mailed
594 if ($forum->type == 'qanda' && !forum_get_user_posted_time($discussion->id, $userto->id) && $pid != $discussion->firstpost) {
595 mtrace('Did not email '.$userto->id.' because user has not posted in discussion');
599 // Get info about the sending user
600 if (array_key_exists($post->userid, $users)) { // we might know him/her already
601 $userfrom = $users[$post->userid];
602 if (!isset($userfrom->idnumber)) {
603 // Minimalised user info, fetch full record.
604 $userfrom = $DB->get_record('user', array('id' => $userfrom->id));
605 forum_cron_minimise_user_record($userfrom);
608 } else if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
609 forum_cron_minimise_user_record($userfrom);
610 // Fetch only once if possible, we can add it to user list, it will be skipped anyway.
611 if ($userscount <= FORUM_CRON_USER_CACHE) {
613 $users[$userfrom->id] = $userfrom;
617 mtrace('Could not find user '.$post->userid);
621 //if we want to check that userto and userfrom are not the same person this is probably the spot to do it
623 // setup global $COURSE properly - needed for roles and languages
624 cron_setup_user($userto, $course);
627 if (!isset($userto->viewfullnames[$forum->id])) {
628 $modcontext = context_module::instance($cm->id);
629 $userto->viewfullnames[$forum->id] = has_capability('moodle/site:viewfullnames', $modcontext);
631 if (!isset($userto->canpost[$discussion->id])) {
632 $modcontext = context_module::instance($cm->id);
633 $userto->canpost[$discussion->id] = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
635 if (!isset($userfrom->groups[$forum->id])) {
636 if (!isset($userfrom->groups)) {
637 $userfrom->groups = array();
638 if (isset($users[$userfrom->id])) {
639 $users[$userfrom->id]->groups = array();
642 $userfrom->groups[$forum->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
643 if (isset($users[$userfrom->id])) {
644 $users[$userfrom->id]->groups[$forum->id] = $userfrom->groups[$forum->id];
648 // Make sure groups allow this user to see this email
649 if ($discussion->groupid > 0 and $groupmode = groups_get_activity_groupmode($cm, $course)) { // Groups are being used
650 if (!groups_group_exists($discussion->groupid)) { // Can't find group
651 continue; // Be safe and don't send it to anyone
654 if (!groups_is_member($discussion->groupid) and !has_capability('moodle/site:accessallgroups', $modcontext)) {
655 // do not send posts from other groups when in SEPARATEGROUPS or VISIBLEGROUPS
660 // Make sure we're allowed to see it...
661 if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
662 mtrace('user '.$userto->id. ' can not see '.$post->id);
666 // OK so we need to send the email.
668 // Does the user want this post in a digest? If so postpone it for now.
669 if ($userto->maildigest > 0) {
670 // This user wants the mails to be in digest form
671 $queue = new stdClass();
672 $queue->userid = $userto->id;
673 $queue->discussionid = $discussion->id;
674 $queue->postid = $post->id;
675 $queue->timemodified = $post->created;
676 $DB->insert_record('forum_queue', $queue);
681 // Prepare to actually send the post now, and build up the content
683 $cleanforumname = str_replace('"', "'", strip_tags(format_string($forum->name)));
685 $userfrom->customheaders = array ( // Headers to make emails easier to track
687 'List-Id: "'.$cleanforumname.'" <moodleforum'.$forum->id.'@'.$hostname.'>',
688 'List-Help: '.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id,
689 'Message-ID: '.forum_get_email_message_id($post->id, $userto->id, $hostname),
690 'X-Course-Id: '.$course->id,
691 'X-Course-Name: '.format_string($course->fullname, true)
694 if ($post->parent) { // This post is a reply, so add headers for threading (see MDL-22551)
695 $userfrom->customheaders[] = 'In-Reply-To: '.forum_get_email_message_id($post->parent, $userto->id, $hostname);
696 $userfrom->customheaders[] = 'References: '.forum_get_email_message_id($post->parent, $userto->id, $hostname);
699 $shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
701 $postsubject = html_to_text("$shortname: ".format_string($post->subject, true));
702 $posttext = forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto);
703 $posthtml = forum_make_mail_html($course, $cm, $forum, $discussion, $post, $userfrom, $userto);
705 // Send the post now!
707 mtrace('Sending ', '');
709 $eventdata = new stdClass();
710 $eventdata->component = 'mod_forum';
711 $eventdata->name = 'posts';
712 $eventdata->userfrom = $userfrom;
713 $eventdata->userto = $userto;
714 $eventdata->subject = $postsubject;
715 $eventdata->fullmessage = $posttext;
716 $eventdata->fullmessageformat = FORMAT_PLAIN;
717 $eventdata->fullmessagehtml = $posthtml;
718 $eventdata->notification = 1;
720 // If forum_replytouser is not set then send mail using the noreplyaddress.
721 if (empty($CFG->forum_replytouser)) {
722 // Clone userfrom as it is referenced by $users.
723 $cloneduserfrom = clone($userfrom);
724 $cloneduserfrom->email = $CFG->noreplyaddress;
725 $eventdata->userfrom = $cloneduserfrom;
728 $smallmessagestrings = new stdClass();
729 $smallmessagestrings->user = fullname($userfrom);
730 $smallmessagestrings->forumname = "$shortname: ".format_string($forum->name,true).": ".$discussion->name;
731 $smallmessagestrings->message = $post->message;
732 //make sure strings are in message recipients language
733 $eventdata->smallmessage = get_string_manager()->get_string('smallmessage', 'forum', $smallmessagestrings, $userto->lang);
735 $eventdata->contexturl = "{$CFG->wwwroot}/mod/forum/discuss.php?d={$discussion->id}#p{$post->id}";
736 $eventdata->contexturlname = $discussion->name;
738 $mailresult = message_send($eventdata);
740 mtrace("Error: mod/forum/lib.php forum_cron(): Could not send out mail for id $post->id to user $userto->id".
741 " ($userto->email) .. not trying again.");
742 add_to_log($course->id, 'forum', 'mail error', "discuss.php?d=$discussion->id#p$post->id",
743 substr(format_string($post->subject,true),0,30), $cm->id, $userto->id);
744 $errorcount[$post->id]++;
746 $mailcount[$post->id]++;
748 // Mark post as read if forum_usermarksread is set off
749 if (!$CFG->forum_usermarksread) {
750 $userto->markposts[$post->id] = $post->id;
754 mtrace('post '.$post->id. ': '.$post->subject);
757 // mark processed posts as read
758 forum_tp_mark_posts_read($userto, $userto->markposts);
764 foreach ($posts as $post) {
765 mtrace($mailcount[$post->id]." users were sent post $post->id, '$post->subject'");
766 if ($errorcount[$post->id]) {
767 $DB->set_field('forum_posts', 'mailed', FORUM_MAILED_ERROR, array('id' => $post->id));
772 // release some memory
773 unset($subscribedusers);
779 $sitetimezone = $CFG->timezone;
781 // Now see if there are any digest mails waiting to be sent, and if we should send them
783 mtrace('Starting digest processing...');
785 @set_time_limit(300); // terminate if not able to fetch all digests in 5 minutes
787 if (!isset($CFG->digestmailtimelast)) { // To catch the first time
788 set_config('digestmailtimelast', 0);
792 $digesttime = usergetmidnight($timenow, $sitetimezone) + ($CFG->digestmailtime * 3600);
794 // Delete any really old ones (normally there shouldn't be any)
795 $weekago = $timenow - (7 * 24 * 3600);
796 $DB->delete_records_select('forum_queue', "timemodified < ?", array($weekago));
797 mtrace ('Cleaned old digest records');
799 if ($CFG->digestmailtimelast < $digesttime and $timenow > $digesttime) {
801 mtrace('Sending forum digests: '.userdate($timenow, '', $sitetimezone));
803 $digestposts_rs = $DB->get_recordset_select('forum_queue', "timemodified < ?", array($digesttime));
805 if ($digestposts_rs->valid()) {
807 // We have work to do
810 //caches - reuse the those filled before too
811 $discussionposts = array();
812 $userdiscussions = array();
814 foreach ($digestposts_rs as $digestpost) {
815 if (!isset($posts[$digestpost->postid])) {
816 if ($post = $DB->get_record('forum_posts', array('id' => $digestpost->postid))) {
817 $posts[$digestpost->postid] = $post;
822 $discussionid = $digestpost->discussionid;
823 if (!isset($discussions[$discussionid])) {
824 if ($discussion = $DB->get_record('forum_discussions', array('id' => $discussionid))) {
825 $discussions[$discussionid] = $discussion;
830 $forumid = $discussions[$discussionid]->forum;
831 if (!isset($forums[$forumid])) {
832 if ($forum = $DB->get_record('forum', array('id' => $forumid))) {
833 $forums[$forumid] = $forum;
839 $courseid = $forums[$forumid]->course;
840 if (!isset($courses[$courseid])) {
841 if ($course = $DB->get_record('course', array('id' => $courseid))) {
842 $courses[$courseid] = $course;
848 if (!isset($coursemodules[$forumid])) {
849 if ($cm = get_coursemodule_from_instance('forum', $forumid, $courseid)) {
850 $coursemodules[$forumid] = $cm;
855 $userdiscussions[$digestpost->userid][$digestpost->discussionid] = $digestpost->discussionid;
856 $discussionposts[$digestpost->discussionid][$digestpost->postid] = $digestpost->postid;
858 $digestposts_rs->close(); /// Finished iteration, let's close the resultset
860 // Data collected, start sending out emails to each user
861 foreach ($userdiscussions as $userid => $thesediscussions) {
863 @set_time_limit(120); // terminate if processing of any account takes longer than 2 minutes
867 mtrace(get_string('processingdigest', 'forum', $userid), '... ');
869 // First of all delete all the queue entries for this user
870 $DB->delete_records_select('forum_queue', "userid = ? AND timemodified < ?", array($userid, $digesttime));
872 // Init user caches - we keep the cache for one cycle only,
873 // otherwise it would unnecessarily consume memory.
874 if (array_key_exists($userid, $users) and isset($users[$userid]->username)) {
875 $userto = clone($users[$userid]);
877 $userto = $DB->get_record('user', array('id' => $userid));
878 forum_cron_minimise_user_record($userto);
880 $userto->viewfullnames = array();
881 $userto->canpost = array();
882 $userto->markposts = array();
884 // Override the language and timezone of the "current" user, so that
885 // mail is customised for the receiver.
886 cron_setup_user($userto);
888 $postsubject = get_string('digestmailsubject', 'forum', format_string($site->shortname, true));
890 $headerdata = new stdClass();
891 $headerdata->sitename = format_string($site->fullname, true);
892 $headerdata->userprefs = $CFG->wwwroot.'/user/edit.php?id='.$userid.'&course='.$site->id;
894 $posttext = get_string('digestmailheader', 'forum', $headerdata)."\n\n";
895 $headerdata->userprefs = '<a target="_blank" href="'.$headerdata->userprefs.'">'.get_string('digestmailprefs', 'forum').'</a>';
897 $posthtml = "<head>";
898 /* foreach ($CFG->stylesheets as $stylesheet) {
900 $posthtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n";
902 $posthtml .= "</head>\n<body id=\"email\">\n";
903 $posthtml .= '<p>'.get_string('digestmailheader', 'forum', $headerdata).'</p><br /><hr size="1" noshade="noshade" />';
905 foreach ($thesediscussions as $discussionid) {
907 @set_time_limit(120); // to be reset for each post
909 $discussion = $discussions[$discussionid];
910 $forum = $forums[$discussion->forum];
911 $course = $courses[$forum->course];
912 $cm = $coursemodules[$forum->id];
915 cron_setup_user($userto, $course);
918 if (!isset($userto->viewfullnames[$forum->id])) {
919 $modcontext = context_module::instance($cm->id);
920 $userto->viewfullnames[$forum->id] = has_capability('moodle/site:viewfullnames', $modcontext);
922 if (!isset($userto->canpost[$discussion->id])) {
923 $modcontext = context_module::instance($cm->id);
924 $userto->canpost[$discussion->id] = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
927 $strforums = get_string('forums', 'forum');
928 $canunsubscribe = ! forum_is_forcesubscribed($forum);
929 $canreply = $userto->canpost[$discussion->id];
930 $shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
932 $posttext .= "\n \n";
933 $posttext .= '=====================================================================';
934 $posttext .= "\n \n";
935 $posttext .= "$shortname -> $strforums -> ".format_string($forum->name,true);
936 if ($discussion->name != $forum->name) {
937 $posttext .= " -> ".format_string($discussion->name,true);
940 $posttext .= $CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id;
943 $posthtml .= "<p><font face=\"sans-serif\">".
944 "<a target=\"_blank\" href=\"$CFG->wwwroot/course/view.php?id=$course->id\">$shortname</a> -> ".
945 "<a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/index.php?id=$course->id\">$strforums</a> -> ".
946 "<a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/view.php?f=$forum->id\">".format_string($forum->name,true)."</a>";
947 if ($discussion->name == $forum->name) {
948 $posthtml .= "</font></p>";
950 $posthtml .= " -> <a target=\"_blank\" href=\"$CFG->wwwroot/mod/forum/discuss.php?d=$discussion->id\">".format_string($discussion->name,true)."</a></font></p>";
954 $postsarray = $discussionposts[$discussionid];
957 foreach ($postsarray as $postid) {
958 $post = $posts[$postid];
960 if (array_key_exists($post->userid, $users)) { // we might know him/her already
961 $userfrom = $users[$post->userid];
962 if (!isset($userfrom->idnumber)) {
963 $userfrom = $DB->get_record('user', array('id' => $userfrom->id));
964 forum_cron_minimise_user_record($userfrom);
967 } else if ($userfrom = $DB->get_record('user', array('id' => $post->userid))) {
968 forum_cron_minimise_user_record($userfrom);
969 if ($userscount <= FORUM_CRON_USER_CACHE) {
971 $users[$userfrom->id] = $userfrom;
975 mtrace('Could not find user '.$post->userid);
979 if (!isset($userfrom->groups[$forum->id])) {
980 if (!isset($userfrom->groups)) {
981 $userfrom->groups = array();
982 if (isset($users[$userfrom->id])) {
983 $users[$userfrom->id]->groups = array();
986 $userfrom->groups[$forum->id] = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
987 if (isset($users[$userfrom->id])) {
988 $users[$userfrom->id]->groups[$forum->id] = $userfrom->groups[$forum->id];
992 $userfrom->customheaders = array ("Precedence: Bulk");
994 if ($userto->maildigest == 2) {
995 // Subjects and link only
997 $posttext .= $CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id;
998 $by = new stdClass();
999 $by->name = fullname($userfrom);
1000 $by->date = userdate($post->modified);
1001 $posttext .= "\n".format_string($post->subject,true).' '.get_string("bynameondate", "forum", $by);
1002 $posttext .= "\n---------------------------------------------------------------------";
1004 $by->name = "<a target=\"_blank\" href=\"$CFG->wwwroot/user/view.php?id=$userfrom->id&course=$course->id\">$by->name</a>";
1005 $posthtml .= '<div><a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id.'#p'.$post->id.'">'.format_string($post->subject,true).'</a> '.get_string("bynameondate", "forum", $by).'</div>';
1008 // The full treatment
1009 $posttext .= forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto, true);
1010 $posthtml .= forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto, false, $canreply, true, false);
1012 // Create an array of postid's for this user to mark as read.
1013 if (!$CFG->forum_usermarksread) {
1014 $userto->markposts[$post->id] = $post->id;
1018 if ($canunsubscribe) {
1019 $posthtml .= "\n<div class='mdl-right'><font size=\"1\"><a href=\"$CFG->wwwroot/mod/forum/subscribe.php?id=$forum->id\">".get_string("unsubscribe", "forum")."</a></font></div>";
1021 $posthtml .= "\n<div class='mdl-right'><font size=\"1\">".get_string("everyoneissubscribed", "forum")."</font></div>";
1023 $posthtml .= '<hr size="1" noshade="noshade" /></p>';
1025 $posthtml .= '</body>';
1027 if (empty($userto->mailformat) || $userto->mailformat != 1) {
1028 // This user DOESN'T want to receive HTML
1032 $attachment = $attachname='';
1033 // Directly email forum digests rather than sending them via messaging, use the
1034 // site shortname as 'from name', the noreply address will be used by email_to_user.
1035 $mailresult = email_to_user($userto, $site->shortname, $postsubject, $posttext, $posthtml, $attachment, $attachname);
1039 echo "Error: mod/forum/cron.php: Could not send out digest mail to user $userto->id ($userto->email)... not trying again.\n";
1040 add_to_log($course->id, 'forum', 'mail digest error', '', '', $cm->id, $userto->id);
1045 // Mark post as read if forum_usermarksread is set off
1046 forum_tp_mark_posts_read($userto, $userto->markposts);
1050 /// We have finishied all digest emails, update $CFG->digestmailtimelast
1051 set_config('digestmailtimelast', $timenow);
1056 if (!empty($usermailcount)) {
1057 mtrace(get_string('digestsentusers', 'forum', $usermailcount));
1060 if (!empty($CFG->forum_lastreadclean)) {
1062 if ($CFG->forum_lastreadclean + (24*3600) < $timenow) {
1063 set_config('forum_lastreadclean', $timenow);
1064 mtrace('Removing old forum read tracking info...');
1065 forum_tp_clean_read_records();
1068 set_config('forum_lastreadclean', time());
1076 * Builds and returns the body of the email notification in plain text.
1080 * @uses CONTEXT_MODULE
1081 * @param object $course
1083 * @param object $forum
1084 * @param object $discussion
1085 * @param object $post
1086 * @param object $userfrom
1087 * @param object $userto
1088 * @param boolean $bare
1089 * @return string The email body in plain text format.
1091 function forum_make_mail_text($course, $cm, $forum, $discussion, $post, $userfrom, $userto, $bare = false) {
1094 $modcontext = context_module::instance($cm->id);
1096 if (!isset($userto->viewfullnames[$forum->id])) {
1097 $viewfullnames = has_capability('moodle/site:viewfullnames', $modcontext, $userto->id);
1099 $viewfullnames = $userto->viewfullnames[$forum->id];
1102 if (!isset($userto->canpost[$discussion->id])) {
1103 $canreply = forum_user_can_post($forum, $discussion, $userto, $cm, $course, $modcontext);
1105 $canreply = $userto->canpost[$discussion->id];
1109 $by->name = fullname($userfrom, $viewfullnames);
1110 $by->date = userdate($post->modified, "", $userto->timezone);
1112 $strbynameondate = get_string('bynameondate', 'forum', $by);
1114 $strforums = get_string('forums', 'forum');
1116 $canunsubscribe = ! forum_is_forcesubscribed($forum);
1121 $shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
1122 $posttext = "$shortname -> $strforums -> ".format_string($forum->name,true);
1124 if ($discussion->name != $forum->name) {
1125 $posttext .= " -> ".format_string($discussion->name,true);
1129 // add absolute file links
1130 $post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
1133 $posttext .= $CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id;
1134 $posttext .= "\n---------------------------------------------------------------------\n";
1135 $posttext .= format_string($post->subject,true);
1137 $posttext .= " ($CFG->wwwroot/mod/forum/discuss.php?d=$discussion->id#p$post->id)";
1139 $posttext .= "\n".$strbynameondate."\n";
1140 $posttext .= "---------------------------------------------------------------------\n";
1141 $posttext .= format_text_email($post->message, $post->messageformat);
1142 $posttext .= "\n\n";
1143 $posttext .= forum_print_attachments($post, $cm, "text");
1145 if (!$bare && $canreply) {
1146 $posttext .= "---------------------------------------------------------------------\n";
1147 $posttext .= get_string("postmailinfo", "forum", $shortname)."\n";
1148 $posttext .= "$CFG->wwwroot/mod/forum/post.php?reply=$post->id\n";
1150 if (!$bare && $canunsubscribe) {
1151 $posttext .= "\n---------------------------------------------------------------------\n";
1152 $posttext .= get_string("unsubscribe", "forum");
1153 $posttext .= ": $CFG->wwwroot/mod/forum/subscribe.php?id=$forum->id\n";
1160 * Builds and returns the body of the email notification in html format.
1163 * @param object $course
1165 * @param object $forum
1166 * @param object $discussion
1167 * @param object $post
1168 * @param object $userfrom
1169 * @param object $userto
1170 * @return string The email text in HTML format
1172 function forum_make_mail_html($course, $cm, $forum, $discussion, $post, $userfrom, $userto) {
1175 if ($userto->mailformat != 1) { // Needs to be HTML
1179 if (!isset($userto->canpost[$discussion->id])) {
1180 $canreply = forum_user_can_post($forum, $discussion, $userto, $cm, $course);
1182 $canreply = $userto->canpost[$discussion->id];
1185 $strforums = get_string('forums', 'forum');
1186 $canunsubscribe = ! forum_is_forcesubscribed($forum);
1187 $shortname = format_string($course->shortname, true, array('context' => context_course::instance($course->id)));
1189 $posthtml = '<head>';
1190 /* foreach ($CFG->stylesheets as $stylesheet) {
1192 $posthtml .= '<link rel="stylesheet" type="text/css" href="'.$stylesheet.'" />'."\n";
1194 $posthtml .= '</head>';
1195 $posthtml .= "\n<body id=\"email\">\n\n";
1197 $posthtml .= '<div class="navbar">'.
1198 '<a target="_blank" href="'.$CFG->wwwroot.'/course/view.php?id='.$course->id.'">'.$shortname.'</a> » '.
1199 '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/index.php?id='.$course->id.'">'.$strforums.'</a> » '.
1200 '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id.'">'.format_string($forum->name,true).'</a>';
1201 if ($discussion->name == $forum->name) {
1202 $posthtml .= '</div>';
1204 $posthtml .= ' » <a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$discussion->id.'">'.
1205 format_string($discussion->name,true).'</a></div>';
1207 $posthtml .= forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto, false, $canreply, true, false);
1209 if ($canunsubscribe) {
1210 $posthtml .= '<hr /><div class="mdl-align unsubscribelink">
1211 <a href="'.$CFG->wwwroot.'/mod/forum/subscribe.php?id='.$forum->id.'">'.get_string('unsubscribe', 'forum').'</a>
1212 <a href="'.$CFG->wwwroot.'/mod/forum/unsubscribeall.php">'.get_string('unsubscribeall', 'forum').'</a></div>';
1215 $posthtml .= '</body>';
1223 * @param object $course
1224 * @param object $user
1225 * @param object $mod TODO this is not used in this function, refactor
1226 * @param object $forum
1227 * @return object A standard object with 2 variables: info (number of posts for this user) and time (last modified)
1229 function forum_user_outline($course, $user, $mod, $forum) {
1231 require_once("$CFG->libdir/gradelib.php");
1232 $grades = grade_get_grades($course->id, 'mod', 'forum', $forum->id, $user->id);
1233 if (empty($grades->items[0]->grades)) {
1236 $grade = reset($grades->items[0]->grades);
1239 $count = forum_count_user_posts($forum->id, $user->id);
1241 if ($count && $count->postcount > 0) {
1242 $result = new stdClass();
1243 $result->info = get_string("numposts", "forum", $count->postcount);
1244 $result->time = $count->lastpost;
1246 $result->info .= ', ' . get_string('grade') . ': ' . $grade->str_long_grade;
1249 } else if ($grade) {
1250 $result = new stdClass();
1251 $result->info = get_string('grade') . ': ' . $grade->str_long_grade;
1253 //datesubmitted == time created. dategraded == time modified or time overridden
1254 //if grade was last modified by the user themselves use date graded. Otherwise use date submitted
1255 //TODO: move this copied & pasted code somewhere in the grades API. See MDL-26704
1256 if ($grade->usermodified == $user->id || empty($grade->datesubmitted)) {
1257 $result->time = $grade->dategraded;
1259 $result->time = $grade->datesubmitted;
1271 * @param object $coure
1272 * @param object $user
1273 * @param object $mod
1274 * @param object $forum
1276 function forum_user_complete($course, $user, $mod, $forum) {
1277 global $CFG,$USER, $OUTPUT;
1278 require_once("$CFG->libdir/gradelib.php");
1280 $grades = grade_get_grades($course->id, 'mod', 'forum', $forum->id, $user->id);
1281 if (!empty($grades->items[0]->grades)) {
1282 $grade = reset($grades->items[0]->grades);
1283 echo $OUTPUT->container(get_string('grade').': '.$grade->str_long_grade);
1284 if ($grade->str_feedback) {
1285 echo $OUTPUT->container(get_string('feedback').': '.$grade->str_feedback);
1289 if ($posts = forum_get_user_posts($forum->id, $user->id)) {
1291 if (!$cm = get_coursemodule_from_instance('forum', $forum->id, $course->id)) {
1292 print_error('invalidcoursemodule');
1294 $discussions = forum_get_user_involved_discussions($forum->id, $user->id);
1296 foreach ($posts as $post) {
1297 if (!isset($discussions[$post->discussion])) {
1300 $discussion = $discussions[$post->discussion];
1302 forum_print_post($post, $discussion, $forum, $cm, $course, false, false, false);
1305 echo "<p>".get_string("noposts", "forum")."</p>";
1318 * @param array $courses
1319 * @param array $htmlarray
1321 function forum_print_overview($courses,&$htmlarray) {
1322 global $USER, $CFG, $DB, $SESSION;
1324 if (empty($courses) || !is_array($courses) || count($courses) == 0) {
1328 if (!$forums = get_all_instances_in_courses('forum',$courses)) {
1332 // Courses to search for new posts
1333 $coursessqls = array();
1335 foreach ($courses as $course) {
1337 // If the user has never entered into the course all posts are pending
1338 if ($course->lastaccess == 0) {
1339 $coursessqls[] = '(f.course = ?)';
1340 $params[] = $course->id;
1342 // Only posts created after the course last access
1344 $coursessqls[] = '(f.course = ? AND p.created > ?)';
1345 $params[] = $course->id;
1346 $params[] = $course->lastaccess;
1349 $params[] = $USER->id;
1350 $coursessql = implode(' OR ', $coursessqls);
1352 $sql = "SELECT f.id, COUNT(*) as count "
1354 .'JOIN {forum_discussions} d ON d.forum = f.id '
1355 .'JOIN {forum_posts} p ON p.discussion = d.id '
1356 ."WHERE ($coursessql) "
1357 .'AND p.userid != ? '
1360 if (!$new = $DB->get_records_sql($sql, $params)) {
1361 $new = array(); // avoid warnings
1364 // also get all forum tracking stuff ONCE.
1365 $trackingforums = array();
1366 foreach ($forums as $forum) {
1367 if (forum_tp_can_track_forums($forum)) {
1368 $trackingforums[$forum->id] = $forum;
1372 if (count($trackingforums) > 0) {
1373 $cutoffdate = isset($CFG->forum_oldpostdays) ? (time() - ($CFG->forum_oldpostdays*24*60*60)) : 0;
1374 $sql = 'SELECT d.forum,d.course,COUNT(p.id) AS count '.
1375 ' FROM {forum_posts} p '.
1376 ' JOIN {forum_discussions} d ON p.discussion = d.id '.
1377 ' LEFT JOIN {forum_read} r ON r.postid = p.id AND r.userid = ? WHERE (';
1378 $params = array($USER->id);
1380 foreach ($trackingforums as $track) {
1381 $sql .= '(d.forum = ? AND (d.groupid = -1 OR d.groupid = 0 OR d.groupid = ?)) OR ';
1382 $params[] = $track->id;
1383 if (isset($SESSION->currentgroup[$track->course])) {
1384 $groupid = $SESSION->currentgroup[$track->course];
1386 // get first groupid
1387 $groupids = groups_get_all_groups($track->course, $USER->id);
1390 $groupid = key($groupids);
1391 $SESSION->currentgroup[$track->course] = $groupid;
1397 $params[] = $groupid;
1399 $sql = substr($sql,0,-3); // take off the last OR
1400 $sql .= ') AND p.modified >= ? AND r.id is NULL GROUP BY d.forum,d.course';
1401 $params[] = $cutoffdate;
1403 if (!$unread = $DB->get_records_sql($sql, $params)) {
1410 if (empty($unread) and empty($new)) {
1414 $strforum = get_string('modulename','forum');
1416 foreach ($forums as $forum) {
1420 $showunread = false;
1421 // either we have something from logs, or trackposts, or nothing.
1422 if (array_key_exists($forum->id, $new) && !empty($new[$forum->id])) {
1423 $count = $new[$forum->id]->count;
1425 if (array_key_exists($forum->id,$unread)) {
1426 $thisunread = $unread[$forum->id]->count;
1429 if ($count > 0 || $thisunread > 0) {
1430 $str .= '<div class="overview forum"><div class="name">'.$strforum.': <a title="'.$strforum.'" href="'.$CFG->wwwroot.'/mod/forum/view.php?f='.$forum->id.'">'.
1431 $forum->name.'</a></div>';
1432 $str .= '<div class="info"><span class="postsincelogin">';
1433 $str .= get_string('overviewnumpostssince', 'forum', $count)."</span>";
1434 if (!empty($showunread)) {
1435 $str .= '<div class="unreadposts">'.get_string('overviewnumunread', 'forum', $thisunread).'</div>';
1437 $str .= '</div></div>';
1440 if (!array_key_exists($forum->course,$htmlarray)) {
1441 $htmlarray[$forum->course] = array();
1443 if (!array_key_exists('forum',$htmlarray[$forum->course])) {
1444 $htmlarray[$forum->course]['forum'] = ''; // initialize, avoid warnings
1446 $htmlarray[$forum->course]['forum'] .= $str;
1452 * Given a course and a date, prints a summary of all the new
1453 * messages posted in the course since that date
1458 * @uses CONTEXT_MODULE
1459 * @uses VISIBLEGROUPS
1460 * @param object $course
1461 * @param bool $viewfullnames capability
1462 * @param int $timestart
1463 * @return bool success
1465 function forum_print_recent_activity($course, $viewfullnames, $timestart) {
1466 global $CFG, $USER, $DB, $OUTPUT;
1468 // do not use log table if possible, it may be huge and is expensive to join with other tables
1470 if (!$posts = $DB->get_records_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid,
1471 d.timestart, d.timeend, d.userid AS duserid,
1472 u.firstname, u.lastname, u.email, u.picture
1473 FROM {forum_posts} p
1474 JOIN {forum_discussions} d ON d.id = p.discussion
1475 JOIN {forum} f ON f.id = d.forum
1476 JOIN {user} u ON u.id = p.userid
1477 WHERE p.created > ? AND f.course = ?
1478 ORDER BY p.id ASC", array($timestart, $course->id))) { // order by initial posting date
1482 $modinfo = get_fast_modinfo($course);
1484 $groupmodes = array();
1487 $strftimerecent = get_string('strftimerecent');
1489 $printposts = array();
1490 foreach ($posts as $post) {
1491 if (!isset($modinfo->instances['forum'][$post->forum])) {
1495 $cm = $modinfo->instances['forum'][$post->forum];
1496 if (!$cm->uservisible) {
1499 $context = context_module::instance($cm->id);
1501 if (!has_capability('mod/forum:viewdiscussion', $context)) {
1505 if (!empty($CFG->forum_enabletimedposts) and $USER->id != $post->duserid
1506 and (($post->timestart > 0 and $post->timestart > time()) or ($post->timeend > 0 and $post->timeend < time()))) {
1507 if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
1512 $groupmode = groups_get_activity_groupmode($cm, $course);
1515 if ($post->groupid == -1 or $groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $context)) {
1516 // oki (Open discussions have groupid -1)
1519 if (isguestuser()) {
1524 if (!in_array($post->groupid, $modinfo->get_groups($cm->groupingid))) {
1530 $printposts[] = $post;
1538 echo $OUTPUT->heading(get_string('newforumposts', 'forum').':', 3);
1539 echo "\n<ul class='unlist'>\n";
1541 foreach ($printposts as $post) {
1542 $subjectclass = empty($post->parent) ? ' bold' : '';
1544 echo '<li><div class="head">'.
1545 '<div class="date">'.userdate($post->modified, $strftimerecent).'</div>'.
1546 '<div class="name">'.fullname($post, $viewfullnames).'</div>'.
1548 echo '<div class="info'.$subjectclass.'">';
1549 if (empty($post->parent)) {
1550 echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'">';
1552 echo '"<a href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'&parent='.$post->parent.'#p'.$post->id.'">';
1554 $post->subject = break_up_long_words(format_string($post->subject, true));
1555 echo $post->subject;
1556 echo "</a>\"</div></li>\n";
1565 * Return grade for given user or all users.
1569 * @param object $forum
1570 * @param int $userid optional user id, 0 means all users
1571 * @return array array of grades, false if none
1573 function forum_get_user_grades($forum, $userid = 0) {
1576 require_once($CFG->dirroot.'/rating/lib.php');
1578 $ratingoptions = new stdClass;
1579 $ratingoptions->component = 'mod_forum';
1580 $ratingoptions->ratingarea = 'post';
1582 //need these to work backwards to get a context id. Is there a better way to get contextid from a module instance?
1583 $ratingoptions->modulename = 'forum';
1584 $ratingoptions->moduleid = $forum->id;
1585 $ratingoptions->userid = $userid;
1586 $ratingoptions->aggregationmethod = $forum->assessed;
1587 $ratingoptions->scaleid = $forum->scale;
1588 $ratingoptions->itemtable = 'forum_posts';
1589 $ratingoptions->itemtableusercolumn = 'userid';
1591 $rm = new rating_manager();
1592 return $rm->get_user_grades($ratingoptions);
1596 * Update activity grades
1599 * @param object $forum
1600 * @param int $userid specific user only, 0 means all
1601 * @param boolean $nullifnone return null if grade does not exist
1604 function forum_update_grades($forum, $userid=0, $nullifnone=true) {
1606 require_once($CFG->libdir.'/gradelib.php');
1608 if (!$forum->assessed) {
1609 forum_grade_item_update($forum);
1611 } else if ($grades = forum_get_user_grades($forum, $userid)) {
1612 forum_grade_item_update($forum, $grades);
1614 } else if ($userid and $nullifnone) {
1615 $grade = new stdClass();
1616 $grade->userid = $userid;
1617 $grade->rawgrade = NULL;
1618 forum_grade_item_update($forum, $grade);
1621 forum_grade_item_update($forum);
1626 * Update all grades in gradebook.
1629 function forum_upgrade_grades() {
1632 $sql = "SELECT COUNT('x')
1633 FROM {forum} f, {course_modules} cm, {modules} m
1634 WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
1635 $count = $DB->count_records_sql($sql);
1637 $sql = "SELECT f.*, cm.idnumber AS cmidnumber, f.course AS courseid
1638 FROM {forum} f, {course_modules} cm, {modules} m
1639 WHERE m.name='forum' AND m.id=cm.module AND cm.instance=f.id";
1640 $rs = $DB->get_recordset_sql($sql);
1642 $pbar = new progress_bar('forumupgradegrades', 500, true);
1644 foreach ($rs as $forum) {
1646 upgrade_set_timeout(60*5); // set up timeout, may also abort execution
1647 forum_update_grades($forum, 0, false);
1648 $pbar->update($i, $count, "Updating Forum grades ($i/$count).");
1655 * Create/update grade item for given forum
1658 * @uses GRADE_TYPE_NONE
1659 * @uses GRADE_TYPE_VALUE
1660 * @uses GRADE_TYPE_SCALE
1661 * @param stdClass $forum Forum object with extra cmidnumber
1662 * @param mixed $grades Optional array/object of grade(s); 'reset' means reset grades in gradebook
1663 * @return int 0 if ok
1665 function forum_grade_item_update($forum, $grades=NULL) {
1667 if (!function_exists('grade_update')) { //workaround for buggy PHP versions
1668 require_once($CFG->libdir.'/gradelib.php');
1671 $params = array('itemname'=>$forum->name, 'idnumber'=>$forum->cmidnumber);
1673 if (!$forum->assessed or $forum->scale == 0) {
1674 $params['gradetype'] = GRADE_TYPE_NONE;
1676 } else if ($forum->scale > 0) {
1677 $params['gradetype'] = GRADE_TYPE_VALUE;
1678 $params['grademax'] = $forum->scale;
1679 $params['grademin'] = 0;
1681 } else if ($forum->scale < 0) {
1682 $params['gradetype'] = GRADE_TYPE_SCALE;
1683 $params['scaleid'] = -$forum->scale;
1686 if ($grades === 'reset') {
1687 $params['reset'] = true;
1691 return grade_update('mod/forum', $forum->course, 'mod', 'forum', $forum->id, 0, $grades, $params);
1695 * Delete grade item for given forum
1698 * @param stdClass $forum Forum object
1699 * @return grade_item
1701 function forum_grade_item_delete($forum) {
1703 require_once($CFG->libdir.'/gradelib.php');
1705 return grade_update('mod/forum', $forum->course, 'mod', 'forum', $forum->id, 0, NULL, array('deleted'=>1));
1710 * This function returns if a scale is being used by one forum
1713 * @param int $forumid
1714 * @param int $scaleid negative number
1717 function forum_scale_used ($forumid,$scaleid) {
1721 $rec = $DB->get_record("forum",array("id" => "$forumid","scale" => "-$scaleid"));
1723 if (!empty($rec) && !empty($scaleid)) {
1731 * Checks if scale is being used by any instance of forum
1733 * This is used to find out if scale used anywhere
1736 * @param $scaleid int
1737 * @return boolean True if the scale is used by any forum
1739 function forum_scale_used_anywhere($scaleid) {
1741 if ($scaleid and $DB->record_exists('forum', array('scale' => -$scaleid))) {
1748 // SQL FUNCTIONS ///////////////////////////////////////////////////////////
1751 * Gets a post with all info ready for forum_print_post
1752 * Most of these joins are just to get the forum id
1756 * @param int $postid
1757 * @return mixed array of posts or false
1759 function forum_get_post_full($postid) {
1762 $allnames = get_all_user_name_fields(true, 'u');
1763 return $DB->get_record_sql("SELECT p.*, d.forum, $allnames, u.email, u.picture, u.imagealt
1764 FROM {forum_posts} p
1765 JOIN {forum_discussions} d ON p.discussion = d.id
1766 LEFT JOIN {user} u ON p.userid = u.id
1767 WHERE p.id = ?", array($postid));
1771 * Gets posts with all info ready for forum_print_post
1772 * We pass forumid in because we always know it so no need to make a
1773 * complicated join to find it out.
1777 * @return mixed array of posts or false
1779 function forum_get_discussion_posts($discussion, $sort, $forumid) {
1782 $allnames = get_all_user_name_fields(true, 'u');
1783 return $DB->get_records_sql("SELECT p.*, $forumid AS forum, $allnames, u.email, u.picture, u.imagealt
1784 FROM {forum_posts} p
1785 LEFT JOIN {user} u ON p.userid = u.id
1786 WHERE p.discussion = ?
1787 AND p.parent > 0 $sort", array($discussion));
1791 * Gets all posts in discussion including top parent.
1796 * @param int $discussionid
1797 * @param string $sort
1798 * @param bool $tracking does user track the forum?
1799 * @return array of posts
1801 function forum_get_all_discussion_posts($discussionid, $sort, $tracking=false) {
1802 global $CFG, $DB, $USER;
1810 $cutoffdate = $now - ($CFG->forum_oldpostdays * 24 * 3600);
1811 $tr_sel = ", fr.id AS postread";
1812 $tr_join = "LEFT JOIN {forum_read} fr ON (fr.postid = p.id AND fr.userid = ?)";
1813 $params[] = $USER->id;
1816 $allnames = get_all_user_name_fields(true, 'u');
1817 $params[] = $discussionid;
1818 if (!$posts = $DB->get_records_sql("SELECT p.*, $allnames, u.email, u.picture, u.imagealt $tr_sel
1819 FROM {forum_posts} p
1820 LEFT JOIN {user} u ON p.userid = u.id
1822 WHERE p.discussion = ?
1823 ORDER BY $sort", $params)) {
1827 foreach ($posts as $pid=>$p) {
1829 if (forum_tp_is_post_old($p)) {
1830 $posts[$pid]->postread = true;
1836 if (!isset($posts[$p->parent])) {
1837 continue; // parent does not exist??
1839 if (!isset($posts[$p->parent]->children)) {
1840 $posts[$p->parent]->children = array();
1842 $posts[$p->parent]->children[$pid] =& $posts[$pid];
1849 * Gets posts with all info ready for forum_print_post
1850 * We pass forumid in because we always know it so no need to make a
1851 * complicated join to find it out.
1855 * @param int $parent
1856 * @param int $forumid
1859 function forum_get_child_posts($parent, $forumid) {
1862 $allnames = get_all_user_name_fields(true, 'u');
1863 return $DB->get_records_sql("SELECT p.*, $forumid AS forum, $allnames, u.email, u.picture, u.imagealt
1864 FROM {forum_posts} p
1865 LEFT JOIN {user} u ON p.userid = u.id
1867 ORDER BY p.created ASC", array($parent));
1871 * An array of forum objects that the user is allowed to read/search through.
1876 * @param int $userid
1877 * @param int $courseid if 0, we look for forums throughout the whole site.
1878 * @return array of forum objects, or false if no matches
1879 * Forum objects have the following attributes:
1880 * id, type, course, cmid, cmvisible, cmgroupmode, accessallgroups,
1881 * viewhiddentimedposts
1883 function forum_get_readable_forums($userid, $courseid=0) {
1885 global $CFG, $DB, $USER;
1886 require_once($CFG->dirroot.'/course/lib.php');
1888 if (!$forummod = $DB->get_record('modules', array('name' => 'forum'))) {
1889 print_error('notinstalled', 'forum');
1893 $courses = $DB->get_records('course', array('id' => $courseid));
1895 // If no course is specified, then the user can see SITE + his courses.
1896 $courses1 = $DB->get_records('course', array('id' => SITEID));
1897 $courses2 = enrol_get_users_courses($userid, true, array('modinfo'));
1898 $courses = array_merge($courses1, $courses2);
1904 $readableforums = array();
1906 foreach ($courses as $course) {
1908 $modinfo = get_fast_modinfo($course);
1910 if (empty($modinfo->instances['forum'])) {
1915 $courseforums = $DB->get_records('forum', array('course' => $course->id));
1917 foreach ($modinfo->instances['forum'] as $forumid => $cm) {
1918 if (!$cm->uservisible or !isset($courseforums[$forumid])) {
1921 $context = context_module::instance($cm->id);
1922 $forum = $courseforums[$forumid];
1923 $forum->context = $context;
1926 if (!has_capability('mod/forum:viewdiscussion', $context)) {
1931 if (groups_get_activity_groupmode($cm, $course) == SEPARATEGROUPS and !has_capability('moodle/site:accessallgroups', $context)) {
1933 $forum->onlygroups = $modinfo->get_groups($cm->groupingid);
1934 $forum->onlygroups[] = -1;
1937 /// hidden timed discussions
1938 $forum->viewhiddentimedposts = true;
1939 if (!empty($CFG->forum_enabletimedposts)) {
1940 if (!has_capability('mod/forum:viewhiddentimedposts', $context)) {
1941 $forum->viewhiddentimedposts = false;
1946 if ($forum->type == 'qanda'
1947 && !has_capability('mod/forum:viewqandawithoutposting', $context)) {
1949 // We need to check whether the user has posted in the qanda forum.
1950 $forum->onlydiscussions = array(); // Holds discussion ids for the discussions
1951 // the user is allowed to see in this forum.
1952 if ($discussionspostedin = forum_discussions_user_has_posted_in($forum->id, $USER->id)) {
1953 foreach ($discussionspostedin as $d) {
1954 $forum->onlydiscussions[] = $d->id;
1959 $readableforums[$forum->id] = $forum;
1964 } // End foreach $courses
1966 return $readableforums;
1970 * Returns a list of posts found using an array of search terms.
1975 * @param array $searchterms array of search terms, e.g. word +word -word
1976 * @param int $courseid if 0, we search through the whole site
1977 * @param int $limitfrom
1978 * @param int $limitnum
1979 * @param int &$totalcount
1980 * @param string $extrasql
1981 * @return array|bool Array of posts found or false
1983 function forum_search_posts($searchterms, $courseid=0, $limitfrom=0, $limitnum=50,
1984 &$totalcount, $extrasql='') {
1985 global $CFG, $DB, $USER;
1986 require_once($CFG->libdir.'/searchlib.php');
1988 $forums = forum_get_readable_forums($USER->id, $courseid);
1990 if (count($forums) == 0) {
1995 $now = round(time(), -2); // db friendly
1997 $fullaccess = array();
2001 foreach ($forums as $forumid => $forum) {
2004 if (!$forum->viewhiddentimedposts) {
2005 $select[] = "(d.userid = :userid{$forumid} OR (d.timestart < :timestart{$forumid} AND (d.timeend = 0 OR d.timeend > :timeend{$forumid})))";
2006 $params = array_merge($params, array('userid'.$forumid=>$USER->id, 'timestart'.$forumid=>$now, 'timeend'.$forumid=>$now));
2010 $context = $forum->context;
2012 if ($forum->type == 'qanda'
2013 && !has_capability('mod/forum:viewqandawithoutposting', $context)) {
2014 if (!empty($forum->onlydiscussions)) {
2015 list($discussionid_sql, $discussionid_params) = $DB->get_in_or_equal($forum->onlydiscussions, SQL_PARAMS_NAMED, 'qanda'.$forumid.'_');
2016 $params = array_merge($params, $discussionid_params);
2017 $select[] = "(d.id $discussionid_sql OR p.parent = 0)";
2019 $select[] = "p.parent = 0";
2023 if (!empty($forum->onlygroups)) {
2024 list($groupid_sql, $groupid_params) = $DB->get_in_or_equal($forum->onlygroups, SQL_PARAMS_NAMED, 'grps'.$forumid.'_');
2025 $params = array_merge($params, $groupid_params);
2026 $select[] = "d.groupid $groupid_sql";
2030 $selects = implode(" AND ", $select);
2031 $where[] = "(d.forum = :forum{$forumid} AND $selects)";
2032 $params['forum'.$forumid] = $forumid;
2034 $fullaccess[] = $forumid;
2039 list($fullid_sql, $fullid_params) = $DB->get_in_or_equal($fullaccess, SQL_PARAMS_NAMED, 'fula');
2040 $params = array_merge($params, $fullid_params);
2041 $where[] = "(d.forum $fullid_sql)";
2044 $selectdiscussion = "(".implode(" OR ", $where).")";
2046 $messagesearch = '';
2049 // Need to concat these back together for parser to work.
2050 foreach($searchterms as $searchterm){
2051 if ($searchstring != '') {
2052 $searchstring .= ' ';
2054 $searchstring .= $searchterm;
2057 // We need to allow quoted strings for the search. The quotes *should* be stripped
2058 // by the parser, but this should be examined carefully for security implications.
2059 $searchstring = str_replace("\\\"","\"",$searchstring);
2060 $parser = new search_parser();
2061 $lexer = new search_lexer($parser);
2063 if ($lexer->parse($searchstring)) {
2064 $parsearray = $parser->get_parsed_array();
2065 // Experimental feature under 1.8! MDL-8830
2066 // Use alternative text searches if defined
2067 // This feature only works under mysql until properly implemented for other DBs
2068 // Requires manual creation of text index for forum_posts before enabling it:
2069 // CREATE FULLTEXT INDEX foru_post_tix ON [prefix]forum_posts (subject, message)
2070 // Experimental feature under 1.8! MDL-8830
2071 if (!empty($CFG->forum_usetextsearches)) {
2072 list($messagesearch, $msparams) = search_generate_text_SQL($parsearray, 'p.message', 'p.subject',
2073 'p.userid', 'u.id', 'u.firstname',
2074 'u.lastname', 'p.modified', 'd.forum');
2076 list($messagesearch, $msparams) = search_generate_SQL($parsearray, 'p.message', 'p.subject',
2077 'p.userid', 'u.id', 'u.firstname',
2078 'u.lastname', 'p.modified', 'd.forum');
2080 $params = array_merge($params, $msparams);
2083 $fromsql = "{forum_posts} p,
2084 {forum_discussions} d,
2087 $selectsql = " $messagesearch
2088 AND p.discussion = d.id
2090 AND $selectdiscussion
2093 $countsql = "SELECT COUNT(*)
2097 $allnames = get_all_user_name_fields(true, 'u');
2098 $searchsql = "SELECT p.*,
2106 ORDER BY p.modified DESC";
2108 $totalcount = $DB->count_records_sql($countsql, $params);
2110 return $DB->get_records_sql($searchsql, $params, $limitfrom, $limitnum);
2114 * Returns a list of ratings for a particular post - sorted.
2116 * TODO: Check if this function is actually used anywhere.
2117 * Up until the fix for MDL-27471 this function wasn't even returning.
2119 * @param stdClass $context
2120 * @param int $postid
2121 * @param string $sort
2122 * @return array Array of ratings or false
2124 function forum_get_ratings($context, $postid, $sort = "u.firstname ASC") {
2125 $options = new stdClass;
2126 $options->context = $context;
2127 $options->component = 'mod_forum';
2128 $options->ratingarea = 'post';
2129 $options->itemid = $postid;
2130 $options->sort = "ORDER BY $sort";
2132 $rm = new rating_manager();
2133 return $rm->get_all_ratings_for_item($options);
2137 * Returns a list of all new posts that have not been mailed yet
2139 * @param int $starttime posts created after this time
2140 * @param int $endtime posts created before this
2141 * @param int $now used for timed discussions only
2144 function forum_get_unmailed_posts($starttime, $endtime, $now=null) {
2148 $params['mailed'] = FORUM_MAILED_PENDING;
2149 $params['ptimestart'] = $starttime;
2150 $params['ptimeend'] = $endtime;
2151 $params['mailnow'] = 1;
2153 if (!empty($CFG->forum_enabletimedposts)) {
2157 $timedsql = "AND (d.timestart < :dtimestart AND (d.timeend = 0 OR d.timeend > :dtimeend))";
2158 $params['dtimestart'] = $now;
2159 $params['dtimeend'] = $now;
2164 return $DB->get_records_sql("SELECT p.*, d.course, d.forum
2165 FROM {forum_posts} p
2166 JOIN {forum_discussions} d ON d.id = p.discussion
2167 WHERE p.mailed = :mailed
2168 AND p.created >= :ptimestart
2169 AND (p.created < :ptimeend OR p.mailnow = :mailnow)
2171 ORDER BY p.modified ASC", $params);
2175 * Marks posts before a certain time as being mailed already
2179 * @param int $endtime
2180 * @param int $now Defaults to time()
2183 function forum_mark_old_posts_as_mailed($endtime, $now=null) {
2191 $params['mailedsuccess'] = FORUM_MAILED_SUCCESS;
2192 $params['now'] = $now;
2193 $params['endtime'] = $endtime;
2194 $params['mailnow'] = 1;
2195 $params['mailedpending'] = FORUM_MAILED_PENDING;
2197 if (empty($CFG->forum_enabletimedposts)) {
2198 return $DB->execute("UPDATE {forum_posts}
2199 SET mailed = :mailedsuccess
2200 WHERE (created < :endtime OR mailnow = :mailnow)
2201 AND mailed = :mailedpending", $params);
2203 return $DB->execute("UPDATE {forum_posts}
2204 SET mailed = :mailedsuccess
2205 WHERE discussion NOT IN (SELECT d.id
2206 FROM {forum_discussions} d
2207 WHERE d.timestart > :now)
2208 AND (created < :endtime OR mailnow = :mailnow)
2209 AND mailed = :mailedpending", $params);
2214 * Get all the posts for a user in a forum suitable for forum_print_post
2218 * @uses CONTEXT_MODULE
2221 function forum_get_user_posts($forumid, $userid) {
2225 $params = array($forumid, $userid);
2227 if (!empty($CFG->forum_enabletimedposts)) {
2228 $cm = get_coursemodule_from_instance('forum', $forumid);
2229 if (!has_capability('mod/forum:viewhiddentimedposts' , context_module::instance($cm->id))) {
2231 $timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
2237 $allnames = get_all_user_name_fields(true, 'u');
2238 return $DB->get_records_sql("SELECT p.*, d.forum, $allnames, u.email, u.picture, u.imagealt
2240 JOIN {forum_discussions} d ON d.forum = f.id
2241 JOIN {forum_posts} p ON p.discussion = d.id
2242 JOIN {user} u ON u.id = p.userid
2246 ORDER BY p.modified ASC", $params);
2250 * Get all the discussions user participated in
2254 * @uses CONTEXT_MODULE
2255 * @param int $forumid
2256 * @param int $userid
2257 * @return array Array or false
2259 function forum_get_user_involved_discussions($forumid, $userid) {
2263 $params = array($forumid, $userid);
2264 if (!empty($CFG->forum_enabletimedposts)) {
2265 $cm = get_coursemodule_from_instance('forum', $forumid);
2266 if (!has_capability('mod/forum:viewhiddentimedposts' , context_module::instance($cm->id))) {
2268 $timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
2274 return $DB->get_records_sql("SELECT DISTINCT d.*
2276 JOIN {forum_discussions} d ON d.forum = f.id
2277 JOIN {forum_posts} p ON p.discussion = d.id
2280 $timedsql", $params);
2284 * Get all the posts for a user in a forum suitable for forum_print_post
2288 * @param int $forumid
2289 * @param int $userid
2290 * @return array of counts or false
2292 function forum_count_user_posts($forumid, $userid) {
2296 $params = array($forumid, $userid);
2297 if (!empty($CFG->forum_enabletimedposts)) {
2298 $cm = get_coursemodule_from_instance('forum', $forumid);
2299 if (!has_capability('mod/forum:viewhiddentimedposts' , context_module::instance($cm->id))) {
2301 $timedsql = "AND (d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?))";
2307 return $DB->get_record_sql("SELECT COUNT(p.id) AS postcount, MAX(p.modified) AS lastpost
2309 JOIN {forum_discussions} d ON d.forum = f.id
2310 JOIN {forum_posts} p ON p.discussion = d.id
2311 JOIN {user} u ON u.id = p.userid
2314 $timedsql", $params);
2318 * Given a log entry, return the forum post details for it.
2322 * @param object $log
2323 * @return array|null
2325 function forum_get_post_from_log($log) {
2328 $allnames = get_all_user_name_fields(true, 'u');
2329 if ($log->action == "add post") {
2331 return $DB->get_record_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid, $allnames, u.email, u.picture
2332 FROM {forum_discussions} d,
2337 AND d.id = p.discussion
2339 AND u.deleted <> '1'
2340 AND f.id = d.forum", array($log->info));
2343 } else if ($log->action == "add discussion") {
2345 return $DB->get_record_sql("SELECT p.*, f.type AS forumtype, d.forum, d.groupid, $allnames, u.email, u.picture
2346 FROM {forum_discussions} d,
2351 AND d.firstpost = p.id
2353 AND u.deleted <> '1'
2354 AND f.id = d.forum", array($log->info));
2360 * Given a discussion id, return the first post from the discussion
2364 * @param int $dicsussionid
2367 function forum_get_firstpost_from_discussion($discussionid) {
2370 return $DB->get_record_sql("SELECT p.*
2371 FROM {forum_discussions} d,
2374 AND d.firstpost = p.id ", array($discussionid));
2378 * Returns an array of counts of replies to each discussion
2382 * @param int $forumid
2383 * @param string $forumsort
2386 * @param int $perpage
2389 function forum_count_discussion_replies($forumid, $forumsort="", $limit=-1, $page=-1, $perpage=0) {
2395 } else if ($page != -1) {
2396 $limitfrom = $page*$perpage;
2397 $limitnum = $perpage;
2403 if ($forumsort == "") {
2408 $orderby = "ORDER BY $forumsort";
2409 $groupby = ", ".strtolower($forumsort);
2410 $groupby = str_replace('desc', '', $groupby);
2411 $groupby = str_replace('asc', '', $groupby);
2414 if (($limitfrom == 0 and $limitnum == 0) or $forumsort == "") {
2415 $sql = "SELECT p.discussion, COUNT(p.id) AS replies, MAX(p.id) AS lastpostid
2416 FROM {forum_posts} p
2417 JOIN {forum_discussions} d ON p.discussion = d.id
2418 WHERE p.parent > 0 AND d.forum = ?
2419 GROUP BY p.discussion";
2420 return $DB->get_records_sql($sql, array($forumid));
2423 $sql = "SELECT p.discussion, (COUNT(p.id) - 1) AS replies, MAX(p.id) AS lastpostid
2424 FROM {forum_posts} p
2425 JOIN {forum_discussions} d ON p.discussion = d.id
2427 GROUP BY p.discussion $groupby
2429 return $DB->get_records_sql("SELECT * FROM ($sql) sq", array($forumid), $limitfrom, $limitnum);
2437 * @staticvar array $cache
2438 * @param object $forum
2440 * @param object $course
2443 function forum_count_discussions($forum, $cm, $course) {
2444 global $CFG, $DB, $USER;
2446 static $cache = array();
2448 $now = round(time(), -2); // db cache friendliness
2450 $params = array($course->id);
2452 if (!isset($cache[$course->id])) {
2453 if (!empty($CFG->forum_enabletimedposts)) {
2454 $timedsql = "AND d.timestart < ? AND (d.timeend = 0 OR d.timeend > ?)";
2461 $sql = "SELECT f.id, COUNT(d.id) as dcount
2463 JOIN {forum_discussions} d ON d.forum = f.id
2468 if ($counts = $DB->get_records_sql($sql, $params)) {
2469 foreach ($counts as $count) {
2470 $counts[$count->id] = $count->dcount;
2472 $cache[$course->id] = $counts;
2474 $cache[$course->id] = array();
2478 if (empty($cache[$course->id][$forum->id])) {
2482 $groupmode = groups_get_activity_groupmode($cm, $course);
2484 if ($groupmode != SEPARATEGROUPS) {
2485 return $cache[$course->id][$forum->id];
2488 if (has_capability('moodle/site:accessallgroups', context_module::instance($cm->id))) {
2489 return $cache[$course->id][$forum->id];
2492 require_once($CFG->dirroot.'/course/lib.php');
2494 $modinfo = get_fast_modinfo($course);
2496 $mygroups = $modinfo->get_groups($cm->groupingid);
2498 // add all groups posts
2501 list($mygroups_sql, $params) = $DB->get_in_or_equal($mygroups);
2502 $params[] = $forum->id;
2504 if (!empty($CFG->forum_enabletimedposts)) {
2505 $timedsql = "AND d.timestart < $now AND (d.timeend = 0 OR d.timeend > $now)";
2512 $sql = "SELECT COUNT(d.id)
2513 FROM {forum_discussions} d
2514 WHERE d.groupid $mygroups_sql AND d.forum = ?
2517 return $DB->get_field_sql($sql, $params);
2521 * How many posts by other users are unrated by a given user in the given discussion?
2523 * TODO: Is this function still used anywhere?
2525 * @param int $discussionid
2526 * @param int $userid
2529 function forum_count_unrated_posts($discussionid, $userid) {
2532 $sql = "SELECT COUNT(*) as num
2535 AND discussion = :discussionid
2536 AND userid <> :userid";
2537 $params = array('discussionid' => $discussionid, 'userid' => $userid);
2538 $posts = $DB->get_record_sql($sql, $params);
2540 $sql = "SELECT count(*) as num
2541 FROM {forum_posts} p,
2543 WHERE p.discussion = :discussionid AND
2545 r.userid = userid AND
2546 r.component = 'mod_forum' AND
2547 r.ratingarea = 'post'";
2548 $rated = $DB->get_record_sql($sql, $params);
2550 if ($posts->num > $rated->num) {
2551 return $posts->num - $rated->num;
2553 return 0; // Just in case there was a counting error
2564 * Get all discussions in a forum
2569 * @uses CONTEXT_MODULE
2570 * @uses VISIBLEGROUPS
2572 * @param string $forumsort
2573 * @param bool $fullpost
2574 * @param int $unused
2576 * @param bool $userlastmodified
2578 * @param int $perpage
2581 function forum_get_discussions($cm, $forumsort="d.timemodified DESC", $fullpost=true, $unused=-1, $limit=-1, $userlastmodified=false, $page=-1, $perpage=0) {
2582 global $CFG, $DB, $USER;
2586 $now = round(time(), -2);
2587 $params = array($cm->instance);
2589 $modcontext = context_module::instance($cm->id);
2591 if (!has_capability('mod/forum:viewdiscussion', $modcontext)) { /// User must have perms to view discussions
2595 if (!empty($CFG->forum_enabletimedposts)) { /// Users must fulfill timed posts
2597 if (!has_capability('mod/forum:viewhiddentimedposts', $modcontext)) {
2598 $timelimit = " AND ((d.timestart <= ? AND (d.timeend = 0 OR d.timeend > ?))";
2602 $timelimit .= " OR d.userid = ?";
2603 $params[] = $USER->id;
2612 } else if ($page != -1) {
2613 $limitfrom = $page*$perpage;
2614 $limitnum = $perpage;
2620 $groupmode = groups_get_activity_groupmode($cm);
2621 $currentgroup = groups_get_activity_group($cm);
2624 if (empty($modcontext)) {
2625 $modcontext = context_module::instance($cm->id);
2628 if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
2629 if ($currentgroup) {
2630 $groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
2631 $params[] = $currentgroup;
2637 //seprate groups without access all
2638 if ($currentgroup) {
2639 $groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
2640 $params[] = $currentgroup;
2642 $groupselect = "AND d.groupid = -1";
2650 if (empty($forumsort)) {
2651 $forumsort = "d.timemodified DESC";
2653 if (empty($fullpost)) {
2654 $postdata = "p.id,p.subject,p.modified,p.discussion,p.userid";
2659 if (empty($userlastmodified)) { // We don't need to know this
2664 $umnames = get_all_user_name_fields();
2665 foreach ($umnames as $umname) {
2666 $umfields .= ', um.' . $umname . ' AS um' . $umname;
2668 $umtable = " LEFT JOIN {user} um ON (d.usermodified = um.id)";
2671 $allnames = get_all_user_name_fields(true, 'u');
2672 $sql = "SELECT $postdata, d.name, d.timemodified, d.usermodified, d.groupid, d.timestart, d.timeend, $allnames,
2673 u.email, u.picture, u.imagealt $umfields
2674 FROM {forum_discussions} d
2675 JOIN {forum_posts} p ON p.discussion = d.id
2676 JOIN {user} u ON p.userid = u.id
2678 WHERE d.forum = ? AND p.parent = 0
2679 $timelimit $groupselect
2680 ORDER BY $forumsort";
2681 return $DB->get_records_sql($sql, $params, $limitfrom, $limitnum);
2689 * @uses CONTEXT_MODULE
2690 * @uses VISIBLEGROUPS
2694 function forum_get_discussions_unread($cm) {
2695 global $CFG, $DB, $USER;
2697 $now = round(time(), -2);
2698 $cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
2701 $groupmode = groups_get_activity_groupmode($cm);
2702 $currentgroup = groups_get_activity_group($cm);
2705 $modcontext = context_module::instance($cm->id);
2707 if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
2708 if ($currentgroup) {
2709 $groupselect = "AND (d.groupid = :currentgroup OR d.groupid = -1)";
2710 $params['currentgroup'] = $currentgroup;
2716 //separate groups without access all
2717 if ($currentgroup) {
2718 $groupselect = "AND (d.groupid = :currentgroup OR d.groupid = -1)";
2719 $params['currentgroup'] = $currentgroup;
2721 $groupselect = "AND d.groupid = -1";
2728 if (!empty($CFG->forum_enabletimedposts)) {
2729 $timedsql = "AND d.timestart < :now1 AND (d.timeend = 0 OR d.timeend > :now2)";
2730 $params['now1'] = $now;
2731 $params['now2'] = $now;
2736 $sql = "SELECT d.id, COUNT(p.id) AS unread
2737 FROM {forum_discussions} d
2738 JOIN {forum_posts} p ON p.discussion = d.id
2739 LEFT JOIN {forum_read} r ON (r.postid = p.id AND r.userid = $USER->id)
2740 WHERE d.forum = {$cm->instance}
2741 AND p.modified >= :cutoffdate AND r.id is NULL
2745 $params['cutoffdate'] = $cutoffdate;
2747 if ($unreads = $DB->get_records_sql($sql, $params)) {
2748 foreach ($unreads as $unread) {
2749 $unreads[$unread->id] = $unread->unread;
2761 * @uses CONEXT_MODULE
2762 * @uses VISIBLEGROUPS
2766 function forum_get_discussions_count($cm) {
2767 global $CFG, $DB, $USER;
2769 $now = round(time(), -2);
2770 $params = array($cm->instance);
2771 $groupmode = groups_get_activity_groupmode($cm);
2772 $currentgroup = groups_get_activity_group($cm);
2775 $modcontext = context_module::instance($cm->id);
2777 if ($groupmode == VISIBLEGROUPS or has_capability('moodle/site:accessallgroups', $modcontext)) {
2778 if ($currentgroup) {
2779 $groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
2780 $params[] = $currentgroup;
2786 //seprate groups without access all
2787 if ($currentgroup) {
2788 $groupselect = "AND (d.groupid = ? OR d.groupid = -1)";
2789 $params[] = $currentgroup;
2791 $groupselect = "AND d.groupid = -1";
2798 $cutoffdate = $now - ($CFG->forum_oldpostdays*24*60*60);
2802 if (!empty($CFG->forum_enabletimedposts)) {
2804 $modcontext = context_module::instance($cm->id);
2806 if (!has_capability('mod/forum:viewhiddentimedposts', $modcontext)) {
2807 $timelimit = " AND ((d.timestart <= ? AND (d.timeend = 0 OR d.timeend > ?))";
2811 $timelimit .= " OR d.userid = ?";
2812 $params[] = $USER->id;
2818 $sql = "SELECT COUNT(d.id)
2819 FROM {forum_discussions} d
2820 JOIN {forum_posts} p ON p.discussion = d.id
2821 WHERE d.forum = ? AND p.parent = 0
2822 $groupselect $timelimit";
2824 return $DB->get_field_sql($sql, $params);
2829 * Get all discussions started by a particular user in a course (or group)
2830 * This function no longer used ...
2832 * @todo Remove this function if no longer used
2835 * @param int $courseid
2836 * @param int $userid
2837 * @param int $groupid
2840 function forum_get_user_discussions($courseid, $userid, $groupid=0) {
2842 $params = array($courseid, $userid);
2844 $groupselect = " AND d.groupid = ? ";
2845 $params[] = $groupid;
2850 $allnames = get_all_user_name_fields(true, 'u');
2851 return $DB->get_records_sql("SELECT p.*, d.groupid, $allnames, u.email, u.picture, u.imagealt,
2852 f.type as forumtype, f.name as forumname, f.id as forumid
2853 FROM {forum_discussions} d,
2858 AND p.discussion = d.id
2862 AND d.forum = f.id $groupselect
2863 ORDER BY p.created DESC", $params);
2867 * Get the list of potential subscribers to a forum.
2869 * @param object $forumcontext the forum context.
2870 * @param integer $groupid the id of a group, or 0 for all groups.
2871 * @param string $fields the list of fields to return for each user. As for get_users_by_capability.
2872 * @param string $sort sort order. As for get_users_by_capability.
2873 * @return array list of users.
2875 function forum_get_potential_subscribers($forumcontext, $groupid, $fields, $sort = '') {
2878 // only active enrolled users or everybody on the frontpage
2879 list($esql, $params) = get_enrolled_sql($forumcontext, 'mod/forum:allowforcesubscribe', $groupid, true);
2881 list($sort, $sortparams) = users_order_by_sql('u');
2882 $params = array_merge($params, $sortparams);
2885 $sql = "SELECT $fields
2887 JOIN ($esql) je ON je.id = u.id
2890 return $DB->get_records_sql($sql, $params);
2894 * Returns list of user objects that are subscribed to this forum
2898 * @param object $course the course
2899 * @param forum $forum the forum
2900 * @param integer $groupid group id, or 0 for all.
2901 * @param object $context the forum context, to save re-fetching it where possible.
2902 * @param string $fields requested user fields (with "u." table prefix)
2903 * @return array list of users.
2905 function forum_subscribed_users($course, $forum, $groupid=0, $context = null, $fields = null) {
2908 $allnames = get_all_user_name_fields(true, 'u');
2909 if (empty($fields)) {
2931 if (empty($context)) {
2932 $cm = get_coursemodule_from_instance('forum', $forum->id, $course->id);
2933 $context = context_module::instance($cm->id);
2936 if (forum_is_forcesubscribed($forum)) {
2937 $results = forum_get_potential_subscribers($context, $groupid, $fields, "u.email ASC");
2940 // only active enrolled users or everybody on the frontpage
2941 list($esql, $params) = get_enrolled_sql($context, '', $groupid, true);
2942 $params['forumid'] = $forum->id;
2943 $results = $DB->get_records_sql("SELECT $fields
2945 JOIN ($esql) je ON je.id = u.id
2946 JOIN {forum_subscriptions} s ON s.userid = u.id
2947 WHERE s.forum = :forumid
2948 ORDER BY u.email ASC", $params);
2951 // Guest user should never be subscribed to a forum.
2952 unset($results[$CFG->siteguest]);
2959 // OTHER FUNCTIONS ///////////////////////////////////////////////////////////
2965 * @param int $courseid
2966 * @param string $type
2968 function forum_get_course_forum($courseid, $type) {
2969 // How to set up special 1-per-course forums
2970 global $CFG, $DB, $OUTPUT, $USER;
2972 if ($forums = $DB->get_records_select("forum", "course = ? AND type = ?", array($courseid, $type), "id ASC")) {
2973 // There should always only be ONE, but with the right combination of
2974 // errors there might be more. In this case, just return the oldest one (lowest ID).
2975 foreach ($forums as $forum) {
2976 return $forum; // ie the first one
2980 // Doesn't exist, so create one now.
2981 $forum = new stdClass();
2982 $forum->course = $courseid;
2983 $forum->type = "$type";
2984 if (!empty($USER->htmleditor)) {
2985 $forum->introformat = $USER->htmleditor;
2987 switch ($forum->type) {
2989 $forum->name = get_string("namenews", "forum");
2990 $forum->intro = get_string("intronews", "forum");
2991 $forum->forcesubscribe = FORUM_FORCESUBSCRIBE;
2992 $forum->assessed = 0;
2993 if ($courseid == SITEID) {
2994 $forum->name = get_string("sitenews");
2995 $forum->forcesubscribe = 0;
2999 $forum->name = get_string("namesocial", "forum");
3000 $forum->intro = get_string("introsocial", "forum");
3001 $forum->assessed = 0;
3002 $forum->forcesubscribe = 0;
3005 $forum->name = get_string('blogforum', 'forum');
3006 $forum->intro = get_string('introblog', 'forum');
3007 $forum->assessed = 0;
3008 $forum->forcesubscribe = 0;
3011 echo $OUTPUT->notification("That forum type doesn't exist!");
3016 $forum->timemodified = time();
3017 $forum->id = $DB->insert_record("forum", $forum);
3019 if (! $module = $DB->get_record("modules", array("name" => "forum"))) {
3020 echo $OUTPUT->notification("Could not find forum module!!");
3023 $mod = new stdClass();
3024 $mod->course = $courseid;
3025 $mod->module = $module->id;
3026 $mod->instance = $forum->id;
3028 include_once("$CFG->dirroot/course/lib.php");
3029 if (! $mod->coursemodule = add_course_module($mod) ) {
3030 echo $OUTPUT->notification("Could not add a new course module to the course '" . $courseid . "'");
3033 $sectionid = course_add_cm_to_section($courseid, $mod->coursemodule, 0);
3034 return $DB->get_record("forum", array("id" => "$forum->id"));
3039 * Given the data about a posting, builds up the HTML to display it and
3040 * returns the HTML in a string. This is designed for sending via HTML email.
3043 * @param object $course
3045 * @param object $forum
3046 * @param object $discussion
3047 * @param object $post
3048 * @param object $userform
3049 * @param object $userto
3050 * @param bool $ownpost
3051 * @param bool $reply
3054 * @param string $footer
3057 function forum_make_mail_post($course, $cm, $forum, $discussion, $post, $userfrom, $userto,
3058 $ownpost=false, $reply=false, $link=false, $rate=false, $footer="") {
3060 global $CFG, $OUTPUT;
3062 $modcontext = context_module::instance($cm->id);
3064 if (!isset($userto->viewfullnames[$forum->id])) {
3065 $viewfullnames = has_capability('moodle/site:viewfullnames', $modcontext, $userto->id);
3067 $viewfullnames = $userto->viewfullnames[$forum->id];
3070 // add absolute file links
3071 $post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
3073 // format the post body
3074 $options = new stdClass();
3075 $options->para = true;
3076 $formattedtext = format_text($post->message, $post->messageformat, $options, $course->id);
3078 $output = '<table border="0" cellpadding="3" cellspacing="0" class="forumpost">';
3080 $output .= '<tr class="header"><td width="35" valign="top" class="picture left">';
3081 $output .= $OUTPUT->user_picture($userfrom, array('courseid'=>$course->id));
3084 if ($post->parent) {
3085 $output .= '<td class="topic">';
3087 $output .= '<td class="topic starter">';
3089 $output .= '<div class="subject">'.format_string($post->subject).'</div>';
3091 $fullname = fullname($userfrom, $viewfullnames);
3092 $by = new stdClass();
3093 $by->name = '<a href="'.$CFG->wwwroot.'/user/view.php?id='.$userfrom->id.'&course='.$course->id.'">'.$fullname.'</a>';
3094 $by->date = userdate($post->modified, '', $userto->timezone);
3095 $output .= '<div class="author">'.get_string('bynameondate', 'forum', $by).'</div>';
3097 $output .= '</td></tr>';
3099 $output .= '<tr><td class="left side" valign="top">';
3101 if (isset($userfrom->groups)) {
3102 $groups = $userfrom->groups[$forum->id];
3104 $groups = groups_get_all_groups($course->id, $userfrom->id, $cm->groupingid);
3108 $output .= print_group_picture($groups, $course->id, false, true, true);
3110 $output .= ' ';
3113 $output .= '</td><td class="content">';
3115 $attachments = forum_print_attachments($post, $cm, 'html');
3116 if ($attachments !== '') {
3117 $output .= '<div class="attachments">';
3118 $output .= $attachments;
3119 $output .= '</div>';
3122 $output .= $formattedtext;
3125 $commands = array();
3127 if ($post->parent) {
3128 $commands[] = '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.
3129 $post->discussion.'&parent='.$post->parent.'">'.get_string('parent', 'forum').'</a>';
3133 $commands[] = '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/post.php?reply='.$post->id.'">'.
3134 get_string('reply', 'forum').'</a>';
3137 $output .= '<div class="commands">';
3138 $output .= implode(' | ', $commands);
3139 $output .= '</div>';
3141 // Context link to post if required
3143 $output .= '<div class="link">';
3144 $output .= '<a target="_blank" href="'.$CFG->wwwroot.'/mod/forum/discuss.php?d='.$post->discussion.'#p'.$post->id.'">'.
3145 get_string('postincontext', 'forum').'</a>';
3146 $output .= '</div>';
3150 $output .= '<div class="footer">'.$footer.'</div>';
3152 $output .= '</td></tr></table>'."\n\n";
3158 * Print a forum post
3162 * @uses FORUM_MODE_THREADED
3163 * @uses PORTFOLIO_FORMAT_PLAINHTML
3164 * @uses PORTFOLIO_FORMAT_FILE
3165 * @uses PORTFOLIO_FORMAT_RICHHTML
3166 * @uses PORTFOLIO_ADD_TEXT_LINK
3167 * @uses CONTEXT_MODULE
3168 * @param object $post The post to print.
3169 * @param object $discussion
3170 * @param object $forum
3172 * @param object $course
3173 * @param boolean $ownpost Whether this post belongs to the current user.
3174 * @param boolean $reply Whether to print a 'reply' link at the bottom of the message.
3175 * @param boolean $link Just print a shortened version of the post as a link to the full post.
3176 * @param string $footer Extra stuff to print after the message.
3177 * @param string $highlight Space-separated list of terms to highlight.
3178 * @param int $post_read true, false or -99. If we already know whether this user
3179 * has read this post, pass that in, otherwise, pass in -99, and this
3180 * function will work it out.
3181 * @param boolean $dummyifcantsee When forum_user_can_see_post says that
3182 * the current user can't see this post, if this argument is true
3183 * (the default) then print a dummy 'you can't see this post' post.
3184 * If false, don't output anything at all.
3185 * @param bool|null $istracked
3188 function forum_print_post($post, $discussion, $forum, &$cm, $course, $ownpost=false, $reply=false, $link=false,
3189 $footer="", $highlight="", $postisread=null, $dummyifcantsee=true, $istracked=null, $return=false) {
3190 global $USER, $CFG, $OUTPUT;
3192 require_once($CFG->libdir . '/filelib.php');
3197 $modcontext = context_module::instance($cm->id);
3199 $post->course = $course->id;
3200 $post->forum = $forum->id;
3201 $post->message = file_rewrite_pluginfile_urls($post->message, 'pluginfile.php', $modcontext->id, 'mod_forum', 'post', $post->id);
3202 if (!empty($CFG->enableplagiarism)) {
3203 require_once($CFG->libdir.'/plagiarismlib.php');
3204 $post->message .= plagiarism_get_links(array('userid' => $post->userid,
3205 'content' => $post->message,
3207 'course' => $post->course,
3208 'forum' => $post->forum));
3212 if (!isset($cm->cache)) {
3213 $cm->cache = new stdClass;
3216 if (!isset($cm->cache->caps)) {
3217 $cm->cache->caps = array();
3218 $cm->cache->caps['mod/forum:viewdiscussion'] = has_capability('mod/forum:viewdiscussion', $modcontext);
3219 $cm->cache->caps['moodle/site:viewfullnames'] = has_capability('moodle/site:viewfullnames', $modcontext);
3220 $cm->cache->caps['mod/forum:editanypost'] = has_capability('mod/forum:editanypost', $modcontext);
3221 $cm->cache->caps['mod/forum:splitdiscussions'] = has_capability('mod/forum:splitdiscussions', $modcontext);
3222 $cm->cache->caps['mod/forum:deleteownpost'] = has_capability('mod/forum:deleteownpost', $modcontext);
3223 $cm->cache->caps['mod/forum:deleteanypost'] = has_capability('mod/forum:deleteanypost', $modcontext);
3224 $cm->cache->caps['mod/forum:viewanyrating'] = has_capability('mod/forum:viewanyrating', $modcontext);
3225 $cm->cache->caps['mod/forum:exportpost'] = has_capability('mod/forum:exportpost', $modcontext);
3226 $cm->cache->caps['mod/forum:exportownpost'] = has_capability('mod/forum:exportownpost', $modcontext);
3229 if (!isset($cm->uservisible)) {
3230 $cm->uservisible = coursemodule_visible_for_user($cm);
3233 if ($istracked && is_null($postisread)) {
3234 $postisread = forum_tp_is_post_read($USER->id, $post);
3237 if (!forum_user_can_see_post($forum, $discussion, $post, NULL, $cm)) {
3239 if (!$dummyifcantsee) {
3246 $output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
3247 $output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'));
3248 $output .= html_writer::start_tag('div', array('class'=>'row header'));
3249 $output .= html_writer::tag('div', '', array('class'=>'left picture')); // Picture
3250 if ($post->parent) {
3251 $output .= html_writer::start_tag('div', array('class'=>'topic'));
3253 $output .= html_writer::start_tag('div', array('class'=>'topic starter'));
3255 $output .= html_writer::tag('div', get_string('forumsubjecthidden','forum'), array('class'=>'subject')); // Subject
3256 $output .= html_writer::tag('div', get_string('forumauthorhidden','forum'), array('class'=>'author')); // author
3257 $output .= html_writer::end_tag('div');
3258 $output .= html_writer::end_tag('div'); // row
3259 $output .= html_writer::start_tag('div', array('class'=>'row'));
3260 $output .= html_writer::tag('div', ' ', array('class'=>'left side')); // Groups
3261 $output .= html_writer::tag('div', get_string('forumbodyhidden','forum'), array('class'=>'content')); // Content
3262 $output .= html_writer::end_tag('div'); // row
3263 $output .= html_writer::end_tag('div'); // forumpost
3273 $str = new stdClass;
3274 $str->edit = get_string('edit', 'forum');
3275 $str->delete = get_string('delete', 'forum');
3276 $str->reply = get_string('reply', 'forum');
3277 $str->parent = get_string('parent', 'forum');
3278 $str->pruneheading = get_string('pruneheading', 'forum');
3279 $str->prune = get_string('prune', 'forum');
3280 $str->displaymode = get_user_preferences('forum_displaymode', $CFG->forum_displaymode);
3281 $str->markread = get_string('markread', 'forum');
3282 $str->markunread = get_string('markunread', 'forum');
3285 $discussionlink = new moodle_url('/mod/forum/discuss.php', array('d'=>$post->discussion));
3287 // Build an object that represents the posting user
3288 $postuser = new stdClass;
3289 $postuser->id = $post->userid;
3290 foreach (get_all_user_name_fields() as $addname) {
3291 $postuser->$addname = $post->$addname;
3293 $postuser->imagealt = $post->imagealt;
3294 $postuser->picture = $post->picture;
3295 $postuser->email = $post->email;
3296 // Some handy things for later on
3297 $postuser->fullname = fullname($postuser, $cm->cache->caps['moodle/site:viewfullnames']);
3298 $postuser->profilelink = new moodle_url('/user/view.php', array('id'=>$post->userid, 'course'=>$course->id));
3300 // Prepare the groups the posting user belongs to
3301 if (isset($cm->cache->usersgroups)) {
3303 if (isset($cm->cache->usersgroups[$post->userid])) {
3304 foreach ($cm->cache->usersgroups[$post->userid] as $gid) {
3305 $groups[$gid] = $cm->cache->groups[$gid];
3309 $groups = groups_get_all_groups($course->id, $post->userid, $cm->groupingid);
3312 // Prepare the attachements for the post, files then images
3313 list($attachments, $attachedimages) = forum_print_attachments($post, $cm, 'separateimages');
3315 // Determine if we need to shorten this post
3316 $shortenpost = ($link && (strlen(strip_tags($post->message)) > $CFG->forum_longpost));
3319 // Prepare an array of commands
3320 $commands = array();
3322 // SPECIAL CASE: The front page can display a news item post to non-logged in users.
3323 // Don't display the mark read / unread controls in this case.
3324 if ($istracked && $CFG->forum_usermarksread && isloggedin()) {
3325 $url = new moodle_url($discussionlink, array('postid'=>$post->id, 'mark'=>'unread'));
3326 $text = $str->markunread;
3328 $url->param('mark', 'read');
3329 $text = $str->markread;
3331 if ($str->displaymode == FORUM_MODE_THREADED) {
3332 $url->param('parent', $post->parent);
3334 $url->set_anchor('p'.$post->id);
3336 $commands[] = array('url'=>$url, 'text'=>$text);
3339 // Zoom in to the parent specifically
3340 if ($post->parent) {
3341 $url = new moodle_url($discussionlink);
3342 if ($str->displaymode == FORUM_MODE_THREADED) {
3343 $url->param('parent', $post->parent);
3345 $url->set_anchor('p'.$post->parent);
3347 $commands[] = array('url'=>$url, 'text'=>$str->parent);
3350 // Hack for allow to edit news posts those are not displayed yet until they are displayed
3351 $age = time() - $post->created;
3352 if (!$post->parent && $forum->type == 'news' && $discussion->timestart > time()) {
3356 if ($forum->type == 'single' and $discussion->firstpost == $post->id) {
3357 if (has_capability('moodle/course:manageactivities', $modcontext)) {
3358 // The first post in single simple is the forum description.
3359 $commands[] = array('url'=>new moodle_url('/course/modedit.php', array('update'=>$cm->id, 'sesskey'=>sesskey(), 'return'=>1)), 'text'=>$str->edit);
3361 } else if (($ownpost && $age < $CFG->maxeditingtime) || $cm->cache->caps['mod/forum:editanypost']) {
3362 $commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('edit'=>$post->id)), 'text'=>$str->edit);
3365 if ($cm->cache->caps['mod/forum:splitdiscussions'] && $post->parent && $forum->type != 'single') {
3366 $commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('prune'=>$post->id)), 'text'=>$str->prune, 'title'=>$str->pruneheading);
3369 if ($forum->type == 'single' and $discussion->firstpost == $post->id) {
3370 // Do not allow deleting of first post in single simple type.
3371 } else if (($ownpost && $age < $CFG->maxeditingtime && $cm->cache->caps['mod/forum:deleteownpost']) || $cm->cache->caps['mod/forum:deleteanypost']) {
3372 $commands[] = array('url'=>new moodle_url('/mod/forum/post.php', array('delete'=>$post->id)), 'text'=>$str->delete);
3376 $commands[] = array('url'=>new moodle_url('/mod/forum/post.php#mformforum', array('reply'=>$post->id)), 'text'=>$str->reply);
3379 if ($CFG->enableportfolios && ($cm->cache->caps['mod/forum:exportpost'] || ($ownpost && $cm->cache->caps['mod/forum:exportownpost']))) {
3380 $p = array('postid' => $post->id);
3381 require_once($CFG->libdir.'/portfoliolib.php');
3382 $button = new portfolio_add_button();
3383 $button->set_callback_options('forum_portfolio_caller', array('postid' => $post->id), 'mod_forum');
3384 if (empty($attachments)) {
3385 $button->set_formats(PORTFOLIO_FORMAT_PLAINHTML);
3387 $button->set_formats(PORTFOLIO_FORMAT_RICHHTML);
3390 $porfoliohtml = $button->to_html(PORTFOLIO_ADD_TEXT_LINK);
3391 if (!empty($porfoliohtml)) {
3392 $commands[] = $porfoliohtml;
3395 // Finished building commands
3404 $forumpostclass = ' read';
3406 $forumpostclass = ' unread';
3407 $output .= html_writer::tag('a', '', array('name'=>'unread'));
3410 // ignore trackign status if not tracked or tracked param missing
3411 $forumpostclass = '';
3415 if (empty($post->parent)) {
3416 $topicclass = ' firstpost starter';
3419 $output .= html_writer::tag('a', '', array('id'=>'p'.$post->id));
3420 $output .= html_writer::start_tag('div', array('class'=>'forumpost clearfix'.$forumpostclass.$topicclass));
3421 $output .= html_writer::start_tag('div', array('class'=>'row header clearfix'));
3422 $output .= html_writer::start_tag('div', array('class'=>'left picture'));
3423 $output .= $OUTPUT->user_picture($postuser, array('courseid'=>$course->id));
3424 $output .= html_writer::end_tag('div');
3427 $output .= html_writer::start_tag('div', array('class'=>'topic'.$topicclass));
3429 $postsubject = $post->subject;
3430 if (empty($post->subjectnoformat)) {
3431 $postsubject = format_string($postsubject);
3433 $output .= html_writer::tag('div', $postsubject, array('class'=>'subject'));
3435 $by = new stdClass();
3436 $by->name = html_writer::link($postuser->profilelink, $postuser->fullname);
3437 $by->date = userdate($post->modified);
3438 $output .= html_writer::tag('div', get_string('bynameondate', 'forum', $by), array('class'=>'author'));
3440 $output .= html_writer::end_tag('div'); //topic
3441 $output .= html_writer::end_tag('div'); //row
3443 $output .= html_writer::start_tag('div', array('class'=>'row maincontent clearfix'));
3444 $output .= html_writer::start_tag('div', array('class'=>'left'));
3448 $groupoutput = print_group_picture($groups, $course->id, false, true, true);
3450 if (empty($groupoutput)) {
3451 $groupoutput = ' ';
3453 $output .= html_writer::tag('div', $groupoutput, array('class'=>'grouppictures'));
3455 $output .= html_writer::end_tag('div'); //left side
3456 $output .= html_writer::start_tag('div', array('class'=>'no-overflow'));
3457 $output .= html_writer::start_tag('div', array('class'=>'content'));
3458 if (!empty($attachments)) {
3459 $output .= html_writer::tag('div', $attachments, array('class'=>'attachments'));
3462 $options = new stdClass;
3463 $options->para = false;
3464 $options->trusted = $post->messagetrust;
3465 $options->context = $modcontext;
3467 // Prepare shortened version
3468 $postclass = 'shortenedpost';
3469 $postcontent = format_text(forum_shorten_post($post->message), $post->messageformat, $options, $course->id);
3470 $postcontent .= html_writer::link($discussionlink, get_string('readtherest', 'forum'));
3471 $postcontent .= html_writer::tag('div', '('.get_string('numwords', 'moodle', count_words($post->message)).')',
3472 array('class'=>'post-word-count'));
3474 // Prepare whole post
3475 $postclass = 'fullpost';
3476 $postcontent = format_text($post->message, $post->messageformat, $options, $course->id);
3477 if (!empty($highlight)) {
3478 $postcontent = highlight($highlight, $postcontent);
3480 if (!empty($forum->displaywordcount)) {
3481 $postcontent .= html_writer::tag('div', get_string('numwords', 'moodle', count_words($post->message)),
3482 array('class'=>'post-word-count'));
3484 $postcontent .= html_writer::tag('div', $attachedimages, array('class'=>'attachedimages'));
3487 // Output the post content
3488 $output .= html_writer::tag('div', $postcontent, array('class'=>'posting '.$postclass));
3489 $output .= html_writer::end_tag('div'); // Content
3490 $output .= html_writer::end_tag('div'); // Content mask
3491 $output .= html_writer::end_tag('div'); // Row
3493 $output .= html_writer::start_tag('div', array('class'=>'row side'));
3494 $output .= html_writer::tag('div',' ', array('class'=>'left'));