DataMapper saving multi-field join table

[eluser]msteudel[/eluser]
I realized that I'm probably suposed to do it more like this:

Code:

// no id in name and pass in objects probably
$var = array(
            'site' => $site,
            'location' => $loc,
            'type' => $type,
            'created_on' => date( "Y-m-d H:i:s" ),
            'updated_on' => date( "Y-m-d H:i:s" ) );

But I get

Unable to relate scenario with location.