请问使用 laravel 的多对多的多态关联父表主键必须是叫做'id'吗？

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我叫做 eid 好像不好使啊。是用在 product 和 tag 这两个实体之间。这是定义在 product 模型上的

public function tags()
{
	return $this->morphToMany(Tag::class, 'taggable');
}

相关表结构

2 replies • 2017-03-24 14:36:16 +08:00

run2

Mar 24, 2017

https://laravel.com/api/5.4/Illuminate/Database/Eloquent/Concerns/HasRelationships.html#method_morphToMany
MorphToMany morphToMany(string $related, string $name, string $table = null, string $foreignKey = null, string $relatedKey = null, bool $inverse = false)

xx19941215

Mar 24, 2017

@sobigfish 好像不太对啊，这里是第几个值来设置父表的键？我试了$foreignKey 不太对啊啊