/**
* delete post and sub-posts
* @param integer $post: ID
* @access public
* @return integer 0 or thread-ID
*/
public function deletePost($post)
{
global $ilDB;
include_once "./Modules/Forum/classes/class.ilObjForum.php";
// delete tree and get id's of all posts to delete
$p_node = $this->getPostNode($post);
$del_id = $this->deletePostTree($p_node);
// Delete User read entries
foreach ($del_id as $post_id) {
ilObjForum::_deleteReadEntries($post_id);
}
// DELETE ATTACHMENTS ASSIGNED TO POST
$this->__deletePostFiles($del_id);
$dead_pos = count($del_id);
$dead_thr = 0;
// if deletePost is thread opener ...
if ($p_node["parent"] == 0) {
// delete thread access data
include_once './Modules/Forum/classes/class.ilObjForum.php';
ilObjForum::_deleteAccessEntries($p_node['tree']);
// delete thread
$dead_thr = $p_node["tree"];
$statement = $ilDB->manipulateF('
DELETE FROM frm_threads
WHERE thr_pk = %s', array('integer'), array($p_node['tree']));
// update num_threads
$statement = $ilDB->manipulateF('
UPDATE frm_data
SET top_num_threads = top_num_threads - 1
WHERE top_frm_fk = %s', array('integer'), array($this->id));
// delete all related news
$posset = $ilDB->queryf('
SELECT * FROM frm_posts
WHERE pos_thr_fk = %s', array('integer'), array($p_node['tree']));
while ($posrec = $ilDB->fetchAssoc($posset)) {
include_once "./Services/News/classes/class.ilNewsItem.php";
$news_id = ilNewsItem::getFirstNewsIdForContext($this->id, "frm", $posrec["pos_pk"], "pos");
if ($news_id > 0) {
$news_item = new ilNewsItem($news_id);
$news_item->delete();
}
try {
include_once 'Services/MediaObjects/classes/class.ilObjMediaObject.php';
$mobs = ilObjMediaObject::_getMobsOfObject('frm:html', $posrec['pos_pk']);
foreach ($mobs as $mob) {
if (ilObjMediaObject::_exists($mob)) {
ilObjMediaObject::_removeUsage($mob, 'frm:html', $posrec['pos_pk']);
$mob_obj = new ilObjMediaObject($mob);
$mob_obj->delete();
}
}
} catch (Exception $e) {
}
}
// delete all posts of this thread
$statement = $ilDB->manipulateF('
DELETE FROM frm_posts
WHERE pos_thr_fk = %s', array('integer'), array($p_node['tree']));
} else {
// delete this post and its sub-posts
for ($i = 0; $i < $dead_pos; $i++) {
$statement = $ilDB->manipulateF('
DELETE FROM frm_posts
WHERE pos_pk = %s', array('integer'), array($del_id[$i]));
// delete related news item
include_once "./Services/News/classes/class.ilNewsItem.php";
$news_id = ilNewsItem::getFirstNewsIdForContext($this->id, "frm", $del_id[$i], "pos");
if ($news_id > 0) {
$news_item = new ilNewsItem($news_id);
$news_item->delete();
}
try {
include_once 'Services/MediaObjects/classes/class.ilObjMediaObject.php';
$mobs = ilObjMediaObject::_getMobsOfObject('frm:html', $del_id[$i]);
foreach ($mobs as $mob) {
if (ilObjMediaObject::_exists($mob)) {
ilObjMediaObject::_removeUsage($mob, 'frm:html', $del_id[$i]);
$mob_obj = new ilObjMediaObject($mob);
$mob_obj->delete();
}
}
} catch (Exception $e) {
}
}
// update num_posts in frm_threads
$statement = $ilDB->manipulateF('
UPDATE frm_threads
SET thr_num_posts = thr_num_posts - %s
WHERE thr_pk = %s', array('integer', 'integer'), array($dead_pos, $p_node['tree']));
// get latest post of thread and update last_post
$res1 = $ilDB->queryf('
SELECT * FROM frm_posts
WHERE pos_thr_fk = %s
ORDER BY pos_date DESC', array('integer'), array($p_node['tree']));
if ($res1->numRows() == 0) {
$lastPost_thr = "";
} else {
$z = 0;
while ($selData = $ilDB->fetchAssoc($res1)) {
if ($z > 0) {
break;
}
$lastPost_thr = $selData["pos_top_fk"] . "#" . $selData["pos_thr_fk"] . "#" . $selData["pos_pk"];
$z++;
}
}
$statement = $ilDB->manipulateF('
UPDATE frm_threads
SET thr_last_post = %s
WHERE thr_pk = %s', array('text', 'integer'), array($lastPost_thr, $p_node['tree']));
}
// update num_posts in frm_data
$statement = $ilDB->manipulateF('
UPDATE frm_data
SET top_num_posts = top_num_posts - %s
WHERE top_frm_fk = %s', array('integer', 'integer'), array($dead_pos, $this->id));
// get latest post of forum and update last_post
$res2 = $ilDB->queryf('
SELECT * FROM frm_posts, frm_data
WHERE pos_top_fk = top_pk
AND top_frm_fk = %s
ORDER BY pos_date DESC', array('integer'), array($this->id));
if ($res2->numRows() == 0) {
$lastPost_top = "";
} else {
$z = 0;
while ($selData = $ilDB->fetchAssoc($res2)) {
if ($z > 0) {
break;
}
$lastPost_top = $selData["pos_top_fk"] . "#" . $selData["pos_thr_fk"] . "#" . $selData["pos_pk"];
$z++;
}
}
$statement = $ilDB->manipulateF('
UPDATE frm_data
SET top_last_post = %s
WHERE top_frm_fk = %s', array('text', 'integer'), array($lastPost_top, $this->id));
return $dead_thr;
}
