Config Class, recomendation

[eluser]Twisted1919[/eluser]
Take a look here , this is what i use :

Code:

<?php  if ( ! defined('BASEPATH')) exit('No direct script access allowed');

class MY_Config extends CI_Config{

private $ci = NULL;

public function __construct()
    {
        parent::CI_Config();
    }

public function load_db_items()
    {
        if (is_null($this->ci)) { $this->ci =& get_instance(); }

    /*We already have the table, no use to verify this always .
        if (!$this->ci->db->table_exists($this->table))
        {
           $this->create_table();
        }
    */  
        $result = array();
        if( ! $result = $this->ci->cache->get(md5('general_config')))
            {
            $query = $this->ci->db->get(TBL_CONFIG);
            if($query->num_rows() > 0)
                {
                $result = $query->result();
                $this->ci->cache->write($result,md5('general_config'));
                }
            }
        if( count($result) > 0 )
            {
            foreach ($result as $row)
                {
                    $this->set_item($row->key, $row->value);
                }            
            }

    }

public function save_db_item($key, $value)
    {
        if (is_null($this->ci)) { $this->ci =& get_instance(); }

        $where = array('key' => $key);
        $found = $this->ci->db->get_where(TBL_CONFIG, $where, 1);
        $this->ci->cache->delete(md5('general_config'));
        if ($found->num_rows > 0)
        {
            return $this->ci->db->update(TBL_CONFIG, array('value' => $value), $where);
        }
        else
        {
            return $this->ci->db->insert(TBL_CONFIG, array('key' => $key, 'value' => $value));
        }
                
    }

public function remove_db_item($key)
    {
        if (is_null($this->ci)) { $this->ci =& get_instance(); }
        $this->ci->cache->delete(md5('general_config'));
        return $this->ci->db->delete(TBL_CONFIG, array('key' => $key));
    }

public function create_table()
    {
        if (is_null($this->ci)) { $this->ci =& get_instance(); }

        $this->ci->load->dbforge();

        $this->ci->dbforge->add_field("`id` int(11) NOT NULL auto_increment");
        $this->ci->dbforge->add_field("`updated` timestamp NOT NULL default CURRENT_TIMESTAMP on update CURRENT_TIMESTAMP");
        $this->ci->dbforge->add_field("`key` varchar(255) NOT NULL");
        $this->ci->dbforge->add_field("`value` text NOT NULL");

        $this->ci->dbforge->add_key('id', TRUE);

        $this->ci->dbforge->create_table(TBL_CONFIG, TRUE);
    }    
//        
}

/* End of file MY_Config.php */