src/Versatile/Query/Builder.php
public function isRelatedKey($key)
    {
        if (!$this->parser->isRelatedKey($key)) {
            return false;
        }

        list($join, $key) = $this->toJoinAndKey($key);

        return $this->model->getTable() != $join;

    }
public function isRelatedKey($key)
    {
        if (!$this->parser->isRelatedKey($key)) {
            return false;
        }

        list($join, $key) = $this->toJoinAndKey($key);

        return $this->model->getTable() != $join;

    }
{@inheritdoc}

@param string $key The key name
@return bool