When i use FuelPHP ORM to get ALL results using find('all'), it's return only one record.

This is my db.
table name ws\_config. (no primary key)

```
--------------------------
config_name | config_value |
--------------------------
site_name | My Site |
--------------------------
member_allow_register | 1 |
--------------------------

```

This is my model.

```
class Model_Config extends Orm\Model 
{
    protected static $_table_name = 'config';
    protected static $_primary_key = array();// no PK, need to set PK to empty array.
}

```

This is my controller

```
class Controller_Account_Register extends \Controller_Basecontroller 
{
    public function action_index() 
    {
        $config = Model_Config::find('all');
        $output['config'] = $config;

        // call function below is in base controller. it is just load theme (this view page into main template) nothing special.
        return $this->generatePage('front/templates/account/register_v', $output);
    }
}

```

This is my view file.

```
foreach ($config as $row) {
    //print_r($row);
    echo $row->config_name;
    echo ' = ';
    echo $row->config_value;
    echo '<br>';
}

```

The result is just 

site\_name = My Site

How to get ALL results from this database table? or 
How to get multiple results upon where ondition?