Question

I have a very simple relation defined as follows (aId and bId are the primary keys for each table).

class A extends CActiveRecord
{
    // @var int32 $aId
}

class B extends CActiveRecord
{
    // @var int32 $bId
    // @var int32 $aId

    public function relations()
    {
        return array(
            'a'=>array(self::HAS_ONE, 'A', 'aId'),
        );
    }
}

As long as bId <= 5, I can access A through $bModel->a without any problems. What’s strange is for bId > 5, $bModel->a is null. I’ve checked $bModel->aId for bId > 5 and the foreign key is correct. I can even access A with $aModel = A::model()->findByPk($bModel->aId);. I can also manually edit my bIds in the database table, which produces the same result.

I have no idea what’s causing the relation to fail for primary key’s greater than five. Any suggestions for troubleshooting? I’m at a loss.

EDITED

It turns out I wasn’t using the relation properly. I should have used BELONGS_TO.

class B extends CActiveRecord
{
    // @var int32 $bId
    // @var int32 $aId

    public function relations()
    {
        return array(
            'a'=>array(self::HAS_ONE, 'A', 'aId'),
        );
    }
}

HAS_ONE was causing B to use bId to index A. Since I had five instances of A in my database that worked for bID < 5

Answer 1

Enable query logging in your application config to see what exactly is happening.
Do you get any results when manually running those queries?

'components' => array(

    'db' => array(
        (..)
        'enableParamLogging' => true,
    ),

    'log' => array(
        'class' => 'CLogRouter',
        'routes' => array(
            // Show log messages on web pages
            array(
                'class' => 'CWebLogRoute',
                'categories' => 'system.db.CDbCommand', //queries
                'levels' => 'error, warning, trace, info',
                //'showInFireBug' => true,
            ),

(I’d post this as a comment rather than an answer, but it seems I can’t)