Question

在此代码中：

$latestHerbsInformation = \App\ContentCategories::find('14')->contents->take(5);

哪种工作正常我想使用inRandomOrder()从内容中获取随机行Contents和ContentCategories为belongsToMany RelationShips，此代码为：

$latestHerbsInformation = \App\ContentCategories::find('14')->contents->inRandomOrder()->take(5);

不适合我。

Contents型号：

class Contents extends Model
{
    use Sluggable;
    protected $table = 'contents';
    protected $guarded = ['id'];

    public function categories()
    {
        return $this->belongsToMany(ContentCategories::class);
    }
}

ContentCategories型号：

class ContentCategories extends Model
{
    protected $table = 'contents_categories';
    protected $guarded = ['id'];

    public function contents()
    {
        return $this->belongsToMany(Contents::class);
    }
}

我收到此错误：

Method inRandomOrder does not exist.

我该如何解决这个问题？提前致谢

Answer 1

正确的查询是：

\App\ContentCategories::find('14')->contents()->inRandomOrder()->take(5)->get();

因为这会执行查询并返回一个集合：

\App\ContentCategories::find('14')->contents

Laravel - 在belongsToMany RelationShips上使用inRandomOrder（）

1 个答案: