Blast\Orm\Relations\BelongsTo::getQuery PHP Method

    public function getQuery()
    {
        if (null !== $this->query) {
            return $this->query;
        }
        $provider = $this->createProvider($this->getEntity());
        $foreignProvider = $this->createProvider($this->getForeignEntity());
        $localKey = $this->getLocalKey();
        if ($localKey === null) {
            $localKey = Inflector::singularize($foreignProvider->getDefinition()->getTableName()) . '_' . $foreignProvider->getDefinition()->getPrimaryKeyName();
        }
        $data = $provider->extract();
        //find primary key
        $primaryKey = $data[$localKey];
        $mapper = $foreignProvider->getDefinition()->getMapper()->setConnection($this->getConnection());
        //if no primary key is available, return a select
        $this->query = $primaryKey === null ? $mapper->select() : $mapper->find($primaryKey);
        return $this->query;
    }