关联 [复制链接]

public function myhasOne($related, $foreignKey = null, $localKey = null, $table)
    {
        //$instance = $this->newRelatedInstance($related);
        $instance = (new $related)->setTable($table);

        $foreignKey = $foreignKey ?: $this->getForeignKey();

        $localKey = $localKey ?: $this->getKeyName();

        return $this->newHasOne($instance->newQuery(), $this, $instance->getTable().'.'.$foreignKey, $localKey);
    }