comment.php at Anchor CMS

<?php

class Comment extends Model {

	public static $table = 'comments';

	public static function paginate($page = 1, $perpage = 10) {
		$query = Query::table(static::$table);

		$count = $query->count();

		$results = $query->take($perpage)->skip(($page - 1) * $perpage)->sort('date', 'desc')->get();

		return new Paginator($results, $count, $page, $perpage, url('comments'));
	}

	public static function notify($comment) {
		$uri = Uri::build(array('path' => Uri::make('admin/comments/edit/' . $comment['id'])));

		$headers  = 'MIME-Version: 1.0' . "\r\n";
		$headers .= 'Content-type: text/html; charset=utf-8' . "\r\n";
		$headers .= 'From: notifications@' . $_SERVER['HTTP_HOST'] . "\r\n";

		$message = '<html>
			<head>
				<title>New comment has been added</title>
				<style>
					body {font: 15px/25px "Helvetica Neue", "Open Sans", "DejaVu Sans", "Arial", sans-serif;}
					table {margin: 1em 0; border-collapse: collapse;}
					table td {padding: 6px 8px; border: 1px solid #ccc;}
					h2, p {margin: 0 0 1em 0;}
				</style>
			</head>
			<body>
				<h2>A new comment has been submitted to your site.</h2>

				<table>
					<tr>
						<td>Name</td>
						<td>' . $comment['name'] . '</td>
					</tr>
					<tr>
						<td>Email</td>
						<td>' . $comment['email'] . '</td>
					</tr>
					<tr>
						<td>Comment</td>
						<td>' . $comment['text'] . '</td>
					</tr>
				</table>

				<p><a href="' . $uri . '">View</a></p>
			</body>
		</html>';

		// notify administrators
		foreach(User::where('role', '=', 'administrator')->get() as $user) {
			$to = $user->real_name . ' <' . $user->email . '>';
			mail($to, 'New comment', $message, $headers);
		}
	}

	public static function spam($comment) {
		$parts = explode('@', $comment['email']);
		$domain = array_pop($parts);

		// check domain
		$query = static::where('email', 'like', '%' . $domain)
			->where('status', '=', 'spam');

		if($query->count()) {
			// duplicate spam
			return true;
		}

		// check keywords
		$badwords = Config::get('meta.comment_moderation_keys');

		if($badwords) {
			$words = explode(',', $badwords);

			foreach($words as $word) {
				$word = preg_quote($word, '#');
				$pattern = "#$word#i";

				foreach($comment as $part) {
					if(preg_match($pattern, $part)) return true;
				}
			}
		}

		return false;
	}

}