DiscussionThread.inc
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<?php
/**
* $Id$
*
* Contains static functions concerned with Discusion threads
*
* @author Omar Rahbeeni, CS Holdings, South Africa
* @version $Revision$
* @package lib.discussions
*/
class DiscussionThread {
/**
* The underlying Discussion Comments class
*/
var $iId;
var $iDocumentID;
var $iFirstCommentID;
var $iLastCommentID;
var $iNumberOfViews;
var $iNumberOfReplies;
var $iCreatorID;
/**
* DiscussionThread Constructor
*/
function DiscussionThread($iNewFirstCommentID, $iNewDocumentID, $iNewCreatorID) {
global $default;
// create a new Discussion Thread object.
$this->iDocumentID = $iNewDocumentID;
$this->iCreatorID = $iNewCreatorID;
$this->iId = -1;
$this->iFirstCommentID = $iNewFirstCommentID;
$this->iLastCommentID = -1;
$this->iNumberOfViews = 0;
$this->iNumberOfReplies = 0;
}
/**
* Get the iId for current thread
*/
function getID(){
return $this->iId;
}
/**
* Get document id
*/
function getDocumentID(){
return $this->iDocumentID;
}
/**
* Get the id of the first comment
*/
function getFirstCommentID(){
return $this->iFirstCommentID;
}
/**
* Set the First Comment ID
*/
function setFirstCommentID($NewFirstCommentID){
$this->iFirstCommentID = $NewFirstCommentID;
}
/**
* get the id of the last comment
*/
function getLastCommentID(){
return $this->iLastCommentID;
}
/**
* Set the id of the last comment
*/
function setLastCommentID($iNewLastComment){
$this->iLastCommentID = $iNewLastComment;
}
/**
* Get the total number of time the thread was viewed
*/
function getNumberOfViews(){
return $this->iNumberOfViews;
}
/**
* Increment the total number of times the thread was viewed
*/
function setNumberOfViews(){
$this->iNumberOfViews += 1;
}
/**
* Get the total number of replies(comments) in a thread
*/
function getNumberOfReplies(){
return $this->iNumberOfReplies;
}
/**
* Increment the total number of replies (comments) in a thread
*/
function setNumberOfReplies(){
$this->iNumberOfReplies += 1;
}
/**
* Get a All commentID's seperated by a comma ","
*/
function getAllCommentID() {
global $default;
$sql = $default->db;
$result = $sql->query("SELECT id FROM $default->owl_discussion_threads_table WHERE document_id = $this->iDocumentID ORDER BY id");
if ($result) {
$sql->next_record();
$iThreadID = $sql->f("id");
$result = $sql->query("SELECT id FROM $default->owl_discussion_comments_table WHERE thread_id = $iThreadID ORDER BY date Desc");
if ($result) {
while ($sql->next_record()) {
if ($sql->f("id") > 0) {
$sAllCommentID .= $sql->f("id") . ",";
} else {
//ID not valid
}
}
return $sAllCommentID ;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
} else {
// No Thread for document
return false;
}
}
function getThreadIDforDoc($iDocumentID){
global $default;
$sql = $default->db;
$result = $sql->query("SELECT id FROM $default->owl_discussion_threads_table WHERE document_id = $iDocumentID");
if ($result) {
if ($sql->next_record()) {
if ($sql->f("id") > 0) {
return $sql->f("id");
} else {
return "false";
}
}
$_SESSION["errorMessage"] = $lang_err_object_not_exist . "Document_id = " . $iDocumentID . " table = $default->owl_discussion_threads_table";
return false;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
/**
* Static function.
* Given a web_documents primary key it will create a
* DiscussionThread object and populate it with the
* corresponding database values
*
* @return Unit populated Unit object on successful query, false otherwise and set $_SESSION["errorMessage"]
*/
function & get($iNewThreadID) {
global $default;
$sql = $default->db;
$result = $sql->query("SELECT * FROM $default->owl_discussion_threads_table WHERE id = $iNewThreadID");
if ($result) {
if ($sql->next_record()) {
$oDiscussionThread = & new DiscussionThread($sql->f("first_comment_id"),
$sql->f("document_id"),
$sql->f("creator_id"));
$oDiscussionThread->iId = $iNewThreadID;
$oDiscussionThread->iLastCommentID = $sql->f("last_comment_id");
$oDiscussionThread->iNumberOfViews = $sql->f("views");
$oDiscussionThread->iNumberOfReplies = $sql->f("replies");
return $oDiscussionThread;
}
$_SESSION["errorMessage"] = $lang_err_object_not_exist . "id = " . $iNewThreadID . " table = $default->owl_discussion_threads_table";
return false;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
/**
* Add a new record (thread) into the table
*/
function create(){
global $default, $lang_err_database, $lang_err_object_exists;
//if the object hasn't been created
$sQuery = "what the hell";
if ($this->iId < 0) { //check to see if entry exists
$sql = $default->db;
$sQuery = "INSERT INTO " . $default->owl_discussion_threads_table .
" (document_id, first_comment_id, last_comment_id, views, replies, creator_id) " .
"VALUES (" . $this->iDocumentID . "," . $this->iFirstCommentID . "," . $this->iLastCommentID . "," . $this->iNumberOfViews . "," . $this->iNumberOfReplies ."," . $this->iCreatorID . ")";
$result = $sql->query($sQuery);
if ($result) {
$this->iId = $sql->insert_id();
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
$_SESSION["errorMessage"] = $lang_err_object_exists . "id = " . $this->iId . " table = $default->owl_discussion_threads_table";
return false;
}
/**
* Update a thread in the table
*/
function update(){
global $default, $lang_err_database, $lang_err_object_key;
//only update if the object has been stored
if ($this->iId > 0) {
$sql = $default->db;
$sQuery = "UPDATE " . $default->owl_discussion_threads_table .
" SET document_id = " . $this->iDocumentID .
", first_comment_id = " . $this->iFirstCommentID .
", last_comment_id = " . $this->iLastCommentID .
", views = " . $this->iNumberOfViews .
", replies = " . $this->iNumberOfReplies .
", creator_id = " . $this->iCreatorID .
" WHERE id = " . $this->iId ;
// Do update query
$result = $sql->query( $sQuery);
if ($result) {
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
$_SESSION["errorMessage"] = $lang_err_object_key;
return false;
}
/**
* Delete a thread in the table
*/
function delete(){
global $default, $lang_err_database, $lang_err_object_key;
//only delete the object if it exists in the database
if ($this->iId > 0) {
//check to see if group is linked to a unit
$sql = $default->db;
$query = "SELECT * FROM ". $default->owl_discussion_threads_table ." WHERE id = " . $this->iId ;
$sql->query($query);
$rows = $sql->num_rows($sql);
if ($rows > 1) {
// duplicate Thread exists
$_SESSION["errorMessage"] = "Thread::The Thread id " . $this->iId . " has duplicates!";
return false;
} else {
$sql = $default->db;
$result = $sql->query("DELETE FROM $default->owl_discussion_threads_table WHERE id = $this->iId");
if ($result) {
return true;
}
$_SESSION["errorMessage"] = $lang_err_database;
return false;
}
}
$_SESSION["errorMessage"] = $lang_err_object_key;
return false;
}
}
?>