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拉威尔:雄辩模型中的多重多态关系

laravel-5.2 eloquent laravel-5 laravel

0

Akshay Khale · 技术社区 · 8 年前

我有一个名为Comments的表,其结构如下

Schema::create('comments', function (Blueprint $table) {
$table->increments('id');
$table->morphs('commentable');
$table->morphs('creatable');
$table->text('comment');
$table->timestamps();
});

class Comment extends Model
{
    public $fillable = ['comment'];

    public function commentable()
    {
        return $this->morphTo();
    }

    public function creatable()
    {
        return $this->morphTo();
    }
}

我有两种多态关系

commentable

creatable

如何对用户创建的帖子添加评论?

public function addComment($creatable, $comment)
{
        $this->comments()->create(['comment' => $comment, 'creatable' => $creatable]);
}

它确实工作,我收到以下错误

Illuminate/Database/QueryException with message 'SQLSTATE[HY000]: General error: 1364 Field 'creatable_type' doesn't have a default value (SQL: insert into `post_comments` (`comment`, `commentable_id`, `commentable_type`, `updated_at`, `created_at`) values (Test Comment, 1, App/Post, 2018-08-31 10:29:14, 2018-08-31 10:29:14))'

提前谢谢!!!

1 回复 | 直到 8 年前

1

5

Jonas Staudenmeir 8 年前

你可以用 make() :

public function addComment($creatable, $comment)
{
        $this->comments()->make(['comment' => $comment])
            ->creatable()->associate($creatable)
            ->save();
}