DataMapper - Counting related items

[eluser]phobeous[/eluser]
Hello, I know it's been long since this thread was last replied, but I'm facing the same issue as first post. My relationships:

expedientes --- 1:N --> servicios --- 1:N --> adjuntos

adjuntos.servicio_id exists
servicios.expediente_id exists

Models are correctly related

Code:

class Expediente extends DataMapper
{
   public $has_many = array('servicio');
   //...
}
//...
class Servicio extends DataMapper
{
   public $has_one = array('expediente');
   public $has_many = array('adjunto');
   //...
}
//...
class Adjunto extends DataMapper
{
   public $has_one = array('servicio');
   //...
}

All my models have $table and $model overriden because inflector on spanish may not work properly. Database has rows on tables that relate items. If I do the count from the last side of the oneToMany relation (adjuntos) it works:

Code:

$adjuntos = new Adjunto();
$adjuntos->where_related('servicio/expediente', 'id', 1);
echo $adjuntos->count(); // Echoes the correct number of related adjuntos for servicios on expediente with id 1.

I will use the working option, but it would be very nice (and cool!) to perform the query this other way:

Code:

$expedientes = new Expediente(1);
$adjuntos_count = $expediente->servicio->adjunto->count();

Cheers.