/**
* Creates a new discussion in this forum.
* @param int $groupid Group ID for the discussion or null if it should show
* to all groups
* @param string $subject Subject of message
* @param string $message Message content
* @param int $format Format of message content
* @param bool $attachments True if discussion contains attachments
* @param bool $mailnow True to mail ASAP, else false
* @param int $timestart Visibility time of discussion (seconds since epoch) or null
* @param int $timeend Time at which discussion disappears (seconds since epoch) or null
* @param bool $locked True if discussion should be locked
* @param bool $sticky True if discussion should be sticky
* @param int $userid User ID or 0 for current user
* @param bool $log True to log this
* @param int $asmoderator values are ASMODERATOR_NO, ASMODERATOR_IDENTIFY or ASMODERATOR_ANON
* @param array $tags array of tags to add to a discussion
* @return array Array with 2 elements ($discussionid, $postid)
*/
public function create_discussion($groupid, $subject, $message, $format, $attachments = false, $mailnow = false, $timestart = 0, $timeend = 0, $locked = false, $sticky = false, $userid = 0, $log = true, $asmoderator = self::ASMODERATOR_NO, $tags = null)
{
global $DB, $CFG;
require_once $CFG->dirroot . '/tag/lib.php';
$userid = mod_forumng_utils::get_real_userid($userid);
// Prepare discussion object
$discussionobj = new StdClass();
$discussionobj->forumngid = $this->forumfields->id;
$discussionobj->groupid = $groupid == self::ALL_GROUPS || $groupid == self::NO_GROUPS ? null : $groupid;
$discussionobj->postid = null;
// Temporary until we create that first post
$discussionobj->lastpostid = null;
$discussionobj->timestart = $timestart;
$discussionobj->timeend = $timeend;
$discussionobj->deleted = 0;
$discussionobj->locked = $locked ? 1 : 0;
$discussionobj->sticky = $sticky ? 1 : 0;
// Create discussion
$transaction = $DB->start_delegated_transaction();
$discussionobj->id = $DB->insert_record('forumng_discussions', $discussionobj);
$newdiscussion = new mod_forumng_discussion($this, $discussionobj, false, -1);
// Create initial post.
$postid = $newdiscussion->create_root_post($subject, $message, $format, $attachments, $mailnow, $userid, $asmoderator);
// Update discussion so that it contains the post id
$changes = new StdClass();
$changes->id = $discussionobj->id;
$changes->postid = $postid;
$changes->lastpostid = $postid;
$DB->update_record('forumng_discussions', $changes);
$newdiscussion->log('add discussion');
if (self::search_installed()) {
mod_forumng_post::get_from_id($postid, $this->get_course_module_id())->search_update();
}
// If tags add to tag_instance records.
if ($tags != null) {
tag_set('forumng_discussions', $discussionobj->id, $tags, 'mod_forumng', $this->context->id);
}
$transaction->allow_commit();
return array($newdiscussion->get_id(), $postid);
}
