PHP code example of michalhisim / hierarchy

1. Go to this page and download the library: Download michalhisim/hierarchy library. Choose the download type require.

2. Extract the ZIP file and open the index.php.

3. Add this code to the index.php. 
    
        
<?php
require_once('vendor/autoload.php');

/* Start to develop here. Best regards https://php-download.com/ */

michalhisim / hierarchy example snippets

 php
use \Nette\Diagnostics\Debugger,
    \Nette\Database\Connection;

class ForumModel extends Nette\Object {

    /** @var \Nette\Database\Connection */
    private $database;    

    public function __construct(Connection $db) {
        $this->database = $db;
    }

    /**
     * Load forums from database.
     * @return Hierarchy 
     */
    public function getForums() {

        $forums = $this->database->query('SELECT *
                                          FROM forums
                                          ORDER BY root_id'); // No need to be ordered but it's faster
            
                                         
        /*$forums = $this->database->query('SELECT f.*,
                                                t.changed,
                                                COUNT(t.id) AS topics
                                         FROM forums f
                                         LEFT JOIN (SELECT * 
                                                    FROM topics
                                                    ORDER BY changed DESC) t ON t.forum_id=f.id
                                         GROUP BY f.id
                                         ORDER BY root_id, f.order'); */

        return new Tree\Hierarchy($forums, 'ForumNode');
    }
}