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sakura/app/News/Post.php

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<?php
/**
* Holds the news post object.
* @package Sakura
*/
namespace Sakura\News;
use Sakura\Comment;
use Sakura\DB;
use Sakura\User;
/**
* News post object.
* @package Sakura
* @author Julian van de Groep <me@flash.moe>
*/
class Post
{
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/**
* The format the comment categories should follow.
*/
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const COMMENT_CATEGORY_FORMAT = "news-%s-%u";
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/**
* The id of this news post.
* @var int
*/
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public $id = 0;
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/**
* The category this post is part of.
* @var string
*/
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public $category = "";
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/**
* The user who made this post.
* @var int
*/
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public $user = 0;
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/**
* The timestamp when this post was made.
* @var int
*/
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public $time = 0;
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/**
* The title of this news post.
* @var string
*/
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public $title = "";
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/**
* The content of this news post.
* @var string
*/
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public $text = "";
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/**
* A cache of the amount of comments this post has.
* @var int
*/
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private $commentCountCache = 0;
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/**
* A cache of comments.
* @var array
*/
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private $commentsCache = [];
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/**
* Constructor.
* @param int $id
*/
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public function __construct($id = 0)
{
// Get comment data from the database
$data = DB::table('news')
->where('news_id', $id)
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->first();
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// Check if anything was returned and assign data
if ($data) {
$this->id = $data->news_id;
$this->category = $data->news_category;
$this->user = $data->user_id;
$this->time = $data->news_timestamp;
$this->title = $data->news_title;
$this->text = $data->news_content;
}
}
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/**
* Saving changes to this news post.
*/
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public function save()
{
// Create submission data, insert and update take the same format
$data = [
'news_category' => $this->category,
'user_id' => $this->user,
'news_timestamp' => $this->time,
'news_title' => $this->title,
'news_content' => $this->text,
];
// Update if id isn't 0
if ($this->id) {
DB::table('news')
->where('news_id', $this->id)
->update($data);
} else {
$this->id = DB::table('news')
->insertGetId($data);
}
}
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/**
* Deleting this news post.
*/
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public function delete()
{
DB::table('news')
->where('news_id', $this->id)
->delete();
$this->id = 0;
}
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/**
* Get the user object of the poster.
* @return User
*/
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public function userData()
{
return User::construct($this->user);
}
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/**
* Count the amount of comments this post has.
* @return int
*/
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public function commentCount()
{
if (!$this->commentCountCache) {
$this->commentCountCache = DB::table('comments')
->where('comment_category', sprintf(self::COMMENT_CATEGORY_FORMAT, $this->category, $this->id))
->count();
}
return $this->commentCountCache;
}
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/**
* Get the comments on this post.
* @return array
*/
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public function comments()
{
if (!$this->commentsCache) {
$commentIds = DB::table('comments')
->where('comment_category', sprintf(self::COMMENT_CATEGORY_FORMAT, $this->category, $this->id))
->orderBy('comment_id', 'desc')
->where('comment_reply_to', 0)
->get(['comment_id']);
$commentIds = array_column($commentIds, 'comment_id');
foreach ($commentIds as $comment) {
$this->commentsCache[$comment] = new Comment($comment);
}
}
return $this->commentsCache;
}
}