Question

I’m using Datamapper ORM for CodeIgniter I have rules ‘serialized’ and get_rules ‘unserialized’ for a field in my model. This field will store serialized data and when I retrieve back, get_rules will unserialize it.

However, after calling save(), I’m trying to re-access the field, but it still return serialized string, instead of array.

Is there any way to re-call or refresh my object so that the get_rules is called again and the field now return array?

Here’s my model:

class User extends DataMapper{
  public $validation = array(
    'password' => array(
      'label' => 'Password',
      'rules' => array('encrypt')
    ),
    'preferences' => array(
      'rules' => array('serialize'),
      'get_rules'=> array('unserialize')
    )
  );

  function __construct($id = NULL)
  {
    parent::__construct($id);
  }

  function post_model_init($from_cache = FALSE)
  {
  }

  public function _encrypt($field)
  {
    if (!empty($this->{$field}))
    {
      $this->{$field} = md5($this->{$field});
    }
  }
}

Answer 1

Datamapper ORM, afaik, will only use the get_rules when actually performing a get(). A few things you could try:

Given the following

$a = new Fruit();
$a->name = 'grapes';
$a->colors = serialize(array("purple","green"));
$a->save();

1. Create a new datamapper object and re-fetch:

$b = new Fruit();
$b->where('id', $a->id)->get();
$colors = $b->colors;

2. unserialize() the field yourself…

$colors = unserialize($a->colors);

3. You might even be able to use get_clone()

//not tested...
$b = $a->get_clone();
$colors = $b->colors;