Unknown column problem in datamapper

[eluser]theprodigy[/eluser]
I have a similar error using the where_join_field function.
I am using DMZ 1.7.1 Rev. 395 (per the library header)

Receiving Error:

A Database Error Occurred

Error Number: 1054

Unknown column 'pages_stylesheets.page_id' in 'where clause'

SELECT * FROM (`stylesheets`) WHERE `pages_stylesheets`.`page_id` = 1 OR `stylesheets`.`sitewide` = '1'

My code follows:
Controller:

Code:

$this->obj = new Page();

$this->obj->get_by_name($page_name); // $page_name passed in as parameter. No issue finding page.

$this->css = new Stylesheet();
$this->js = new Javascript();

$this->css->where_join_field('pages','page_id', $this->obj->id)->or_where('sitewide', '1')->get();

Stylesheet Model:

Code:

class Stylesheet extends DataMapper
{
    var $has_many = array('page');

    var $validation = array(
        'name' => array(
            'label' => 'Name',
            'rules' => array('required', 'trim', 'max_length' => 255),
        ),
        'path' => array(
            'label' => 'Path',
            'rules' => array('required', 'trim', 'max_length' => 255),
        ),
        'sitewide' => array(
            'label' => 'Sitewide',
            'rules' => array('trim', 'callback_check_sitewide'),
        )
    );

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

    private function check_sitewide($var)
    {
        if($var == '1')
        {
            return true;
        }

        return false;
    }
}

Javascript Model:

Code:

class Javascript extends DataMapper
{
    var $has_many = array('page');

    var $validation = array(
        'name' => array(
            'label' => 'Name',
            'rules' => array('required', 'trim', 'max_length' => 255),
        ),
        'path' => array(
            'label' => 'Path',
            'rules' => array('required', 'trim', 'max_length' => 255),
        ),
        'sitewide' => array(
            'label' => 'Sitewide',
            'rules' => array('trim', 'callback_check_sitewide'),
        )
    );

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

    private function check_sitewide($var)
    {
        if($var == '1')
        {
            return true;
        }

        return false;
    }
}