get item in cofig ci

$this->config->item('base_url');

http://www.codeigniter.com/user_guide/general/ancillary_classes.html

cách viết hay ho
http://chris-schmitz.com/cleaning-up-your-codeigniter-controllers/

return $this->db
->where('id', $product_id)
->update('products', $attributes);

public function update($product_id, $input)
{
$attributes = array(
'name' => $input['name'],
'price' => $input['price'],
'short_description' => $input['short_description'],
'long_description' => $input['long_description']
);

    return $this->db
        ->where('id', $product_id)
        ->update('products', $attributes);
}

key ci codeigniter advanced
http://code.tutsplus.com/tutorials/advanced-codeigniter-techniques-and-tricks--net-25408
http://code.tutsplus.com/articles/30-awesome-codeigniter-tutorials-for-all-skill-levels--net-16915
http://chris-schmitz.com/cleaning-up-your-codeigniter-controllers/

http://www.2expertsdesign.com/tutorials/codeigniter-framework-tutorials-for-php-application
http://codesamplez.com/codeigniter-tutorials

http://www.catswhocode.com/blog/awesome-tutorials-to-master-codeigniter