/**
* @return bool True if read tracking is enabled for this discussion
* (it is not too old, and read tracking is turned on globally)
*/
public function is_read_tracked()
{
$this->check_full();
return mod_forumng::enabled_read_tracking() && $this->discussionfields->timemodified >= mod_forumng::get_read_tracking_deadline();
}
/**
* Splits this post to become a new discussion
* @param $newsubject
* @param bool $log True to log action
* @return int ID of new discussion
*/
public function split($newsubject, $log = true)
{
global $DB;
$this->require_children();
// Begin a transaction
$transaction = $DB->start_delegated_transaction();
$olddiscussion = $this->get_discussion();
// Create new discussion
$newest = null;
$this->find_newest_child($newest);
$newdiscussionid = $olddiscussion->clone_for_split($this->get_id(), $newest->get_id());
// Update all child posts
$list = array();
$this->list_child_ids($list);
unset($list[0]);
// Don't include this post itself
if (count($list) > 0) {
list($listsql, $listparams) = mod_forumng_utils::get_in_array_sql('id', $list);
$DB->execute("\nUPDATE\n {forumng_posts}\nSET\n discussionid = ?\nWHERE\n {$listsql}", array_merge(array($newdiscussionid), $listparams));
}
// Update any edited posts in this discussion. Edited posts are
// not included in the child id list above because they are not
// loaded as children, but they are conceptually stored as children
// of one of the posts being moved.
$parentlist = $list;
$parentlist[] = $this->get_id();
list($parentlistsql, $parentlistparams) = mod_forumng_utils::get_in_array_sql('parentpostid', $parentlist);
$DB->execute("\nUPDATE\n {forumng_posts}\nSET\n discussionid = ?\nWHERE\n oldversion = 1 AND {$parentlistsql}", array_merge(array($newdiscussionid), $parentlistparams));
// Update this post
$changes = new stdClass();
$changes->id = $this->get_id();
$changes->subject = $newsubject;
$changes->parentpostid = null;
// When split the post, reset the important to 0 so that it is not highlighted.
$changes->important = 0;
// Note don't update modified time, or it makes this post unread,
// which isn't very helpful
$changes->discussionid = $newdiscussionid;
$DB->update_record('forumng_posts', $changes);
// Update read data if relevant
if (mod_forumng::enabled_read_tracking() && $newest->get_modified() >= mod_forumng::get_read_tracking_deadline()) {
$rs = $DB->get_recordset_sql("\nSELECT\n userid, time\nFROM\n {forumng_read}\nWHERE\n discussionid = ? AND time >= ?", array($olddiscussion->get_id(), $this->get_created()));
foreach ($rs as $rec) {
$rec->discussionid = $newdiscussionid;
$DB->insert_record('forumng_read', $rec);
}
$rs->close();
}
$olddiscussion->possible_lastpost_change();
if ($log) {
$this->log('split post');
}
$transaction->allow_commit();
$this->get_discussion()->uncache();
// If discussion-based completion is turned on, this may enable someone
// to complete
if ($this->get_forum()->get_completion_discussions()) {
$this->update_completion(true);
}
return $newdiscussionid;
}
