xssbook2/web/_controller/_util/post.php

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<?php /* Copyright (c) 2024 Freya Murphy */
class Post_controller extends Controller {
// the request model
private $request_model;
// the caceh model
private $cache_model;
// page size
private $page_size;
function __construct($load) {
parent::__construct($load);
$this->request_model = $this->load->model('request');
$this->cache_model = $this->load->model('cache');
$this->page_size = 10;
}
public function index(): void {
$this->view('template/posts');
}
/**
* @return array<string,mixed>
*/
public function posts(): array {
$page = $this->request_model->get_int('page', 0);
$max = $this->request_model->get_int('max');
$offset = $page * $this->page_size;
$user = $this->main->user();
$query = $this->db;
if ($user) {
$query = $query->select('p.*, l.post_id IS NOT NULL as liked');
} else {
$query = $query->select('p.*, FALSE as liked');
}
$query = $query->from('api.post p');
if ($user) {
$query = $query->join('admin.like l', 'p.id = l.post_id AND l.user_id')
->eq($user['id']);
}
if ($max) {
$query = $query
->where('id')->le($max);
}
$posts = $query
->limit($this->page_size)
->offset($offset)
->rows();
$users = $this->cache_model->get_users($posts);
$max = 0;
foreach ($posts as $post) {
$max = max($max, $post['id']);
$data = array();
$data['page_size'] = $this->page_size;
$data['user'] = $users[$post['user_id']];
$data['post'] = $post;
$this->view('template/post', $data);
}
$pc = $this->db
->select('COUNT(p.id) as pc')
->from('api.post p')
->row()['pc'];
return array(
'loaded' => count($posts),
'total' => $pc,
'page_size' => $this->page_size,
'max' => $max,
);
}
/**
* @return array<string,mixed>
*/
public function comments(): array {
$page = $this->request_model->get_int('page', 0);
$max = $this->request_model->get_int('max');
$id = $this->request_model->get_int('id', 0);
$offset = $page * $this->page_size;
$query = $this->db
->select('*')
->from('api.comment')
->where('post_id')
->eq($id);
if ($max) {
$query = $query
->and()
->where('id')
->le($max);
}
$comments = $query
->limit($this->page_size)
->offset($offset)
->rows();
$users = $this->cache_model->get_users($comments);
$max = 0;
foreach ($comments as $comment) {
$max = max($max, $comment['id']);
$data = array();
$data['user'] = $users[$comment['user_id']];
$data['comment'] = $comment;
$this->view('template/comment', $data);
}
return array(
'loaded' => count($comments),
'page_size' => $this->page_size,
'max' => $max,
);
}
}