FuelPHP Forums

I'm trying to build models using ORM in FuelPHP, never used ORM before, so not sure of certain aspects. I have a table Project and a table Revision. Now, projects have multiple revisions, revision has only one project. However, I have an additional link between Project and Revision where I always keep the ID of the latest revision in my Project table. My tables look like this:

products
- id
- latest_revision_id
- ...

revisions
- id
- project_id
- ...

The project model:

class Model_Project extends Orm\Model
{

    protected static $_belongs_to = array(
        'latest_revision' => array(
            'key_from' => 'latest_revision_id'
        ),
    );

    protected static $_has_many = array(
    'revisions',
    );

...

}

The revision model:

class Model_Revision extends \Orm\Model
{

    protected static $_belongs_to = array(
        'project',
    );

    protected static $_has_one = array(
        'project' => array(
            'key_to' => 'latest_revision_id',
        ),
    );

}

However, when I try to access: $project->latest_revision, it gives me an OutOfBoundException: OutOfBoundsException [ Error ]: Property "latest_revision_id" not found for Model_Project exception. Am I missing something? Thanks!