多态多对多关联问题

making · 7年前

Illuminate\Database\QueryException with message 'SQLSTATE[42S22]: Column not found: 1054 Unknown column 'goods_keywordables.goods_keyword_id' in 'field list' (SQL: select goods.*, goods_keywordables.goods_keyword_id as pivot_goods_keyword_id, goods_keywordables.goods_keywordable_id as pivot_goods_keywordable_id from goods inner join goods_keywordables on
goods.goods_id = goods_keywordables.goods_keywordable_id where goods_keywordables.goods_keyword_id = 1 and `goods_k
eywordables.goods_keywordable_type` = App\Model\Good)'

关联：
public function goods_keywords()

{
    return $this->morphToMany('App\Model\Goods_keyword', 'goods_keywordable');
}

public function goods()

{
    return $this->morphedByMany('App\Model\Good', 'goods_keywordable');
}

}
1、其中goods_keywordables.goods_keyword_id 报错这个字段在中间关联表是不存在的，可是生成的SQL 为什么会有这个字段？
2、是不是我的关系定义错了？