Getting unknown property exception while yii\db\ActiveQuery::populateRelation

[luciuz]

Hey everybody!

If we have multiple relation via more than 1 relation, we get an exception in yii\db\ActiveQuery::getModelKey($model, $attributes) when yii\db\ActiveQuery::populateRelation trying to get a $key for the $link.

Example:

class User extends yii\db\ActiveRecord
{
    //...

    public function getSessionPlayground()
    {
        return $this->hasOne(Playground::class, ['id' => 'playground_id'])
            ->viaTable('user_session via_user_session', ['id' => 'last_user_session_id'])           
    }

    public function getSesionPlaygroundType()
    {
        return $this->hasOne(PlaygroundType::class, ['id' => 'playground_type_id'])
            ->via('sessionPlayground');
    }

In this case $link = ['playground_id'] and \db\ActiveQuery::getModelKey(User, ['playground_id']) throwing an exception that playground_id is unknown property for User.

Q	A
Yii version	2.0.15.1
PHP version	7.2.7

[samdark]

Would you please try dev-master?