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sakura/libraries/Forum/Thread.php

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<?php
/*
* Thread class
*/
namespace Sakura\Forum;
use Sakura\Database;
use Sakura\Main;
/**
* Class Thread
* @package Sakura
*/
class Thread
{
// Variables
public $id = 0;
public $forum = 0;
public $hidden = 0;
public $title = "";
public $time = 0;
public $timeLimit = 0;
public $views = 0;
public $status = 0;
public $statusChange = 0;
public $type = 0;
private $_posts = [];
private $_firstPost = null;
private $_lastPost = null;
// Constructor
public function __construct($threadId)
{
// Attempt to get the database row
$threadRow = Database::fetch('topics', false, ['topic_id' => [$threadId, '=']]);
// Assign data if a row was returned
if ($threadRow) {
$this->id = $threadRow['topic_id'];
$this->forum = $threadRow['forum_id'];
$this->hidden = $threadRow['topic_hidden'];
$this->title = $threadRow['topic_title'];
$this->time = $threadRow['topic_time'];
$this->timeLimit = $threadRow['topic_time_limit'];
$this->views = $threadRow['topic_views'];
$this->status = $threadRow['topic_status'];
$this->statusChange = $threadRow['topic_status_change'];
$this->type = $threadRow['topic_type'];
}
}
// Create a new topic
public static function create($forum, $title, $status = 0, $type = 0)
{
// Create the database entry
Database::insert('topics', [
'forum_id' => $forum,
'topic_title' => $title,
'topic_time' => time(),
'topic_status' => $status,
'topic_type' => $type,
]);
// Return the thread object
return new Thread(Database::lastInsertID());
}
// Posts
public function posts()
{
// Check if _posts is something
if (!count($this->_posts)) {
// Get all rows with the thread id
$postRows = Database::fetch('posts', true, ['topic_id' => [$this->id, '=']]);
// Create a storage array
$posts = [];
// Create new post objects for each post
foreach ($postRows as $post) {
$posts[$post['post_id']] = new Post($post['post_id']);
}
$this->_posts = $posts;
} else {
$posts = $this->_posts;
}
// Return the post objects
return $posts;
}
// Get the opening post
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public function firstPost()
{
// Check if the cache var is set
if ($this->_firstPost !== null) {
return $this->_firstPost;
}
// Get the row from the database
$post = Database::fetch('posts', false, ['topic_id' => [$this->id, '=']], ['post_id'], [1]);
// Create the post class
$post = new Post($post ? $post['post_id'] : 0);
// Assign it to the cache var
$this->_firstPost = $post;
// Return
return $post;
}
// Get the last reply
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public function lastPost()
{
// Check if the cache var is set
if ($this->_lastPost !== null) {
return $this->_lastPost;
}
// Get the row from the database
$post = Database::fetch('posts', false, ['topic_id' => [$this->id, '=']], ['post_id', true], [1]);
// Create the post class
$post = new Post($post ? $post['post_id'] : 0);
// Assign it to the cache var
$this->_lastPost = $post;
// Return
return $post;
}
// Reply count
public function replyCount()
{
return Database::count('posts', ['topic_id' => [$this->id, '=']])[0];
}
// Time elapsed since creation
public function timeElapsed()
{
return Main::timeElapsed($this->time);
}
// Time elapsed since status change
public function statusChangeElapsed()
{
return Main::timeElapsed($this->statusChange);
}
// Read status
public function unread($user)
{
// Attempt to get track row from the database
$track = Database::fetch('topics_track', false, ['user_id' => [$user, '='], 'topic_id' => [$this->id, '='], 'mark_time' => [$this->lastPost()->time, '>']]);
// If nothing was returned it's obvious that the status is unread
if (!$track) {
return true;
}
// Else just return false meaning everything is read
return false;
}
// Update read status
public function trackUpdate($user)
{
// Check if we already have a track record
$track = Database::fetch('topics_track', false, ['user_id' => [$user, '='], 'topic_id' => [$this->id, '='], 'forum_id' => [$this->forum, '=']]);
// If so update it
if ($track) {
Database::update('topics_track', [
[
'mark_time' => time(),
],
[
'user_id' => [$user, '='],
'topic_id' => [$this->id, '='],
],
]);
} else {
// If not create a new record
Database::insert('topics_track', [
'user_id' => $user,
'topic_id' => $this->id,
'forum_id' => $this->forum,
'mark_time' => time(),
]);
}
}
// Update views
public function viewsUpdate()
{
Database::update('topics', [
[
'topic_views' => $this->views + 1,
],
[
'topic_id' => [$this->id, '='],
],
]);
}
// Update last post timestamp
public function lastUpdate()
{
Database::update('topics', [
[
'topic_last_reply' => time(),
],
[
'topic_id' => [$this->id, '='],
],
]);
}
}