ORM 下如何实现同类别下同数量内容输出？

ArticleCategory::whereIn('id', [1, 2, 3])->with(['articles' => function ($query) {
    $table = $query->getRelated()->getTable(); //获取当前依赖表名称
    $query->whereRaw('( SELECT COUNT(*) FROM `' . $table . '` AS `temp` WHERE `' . $table . '`.`category_id` = `temp`.`category_id` AND `' . $table . '`.`id` > `temp`.`id`) <= 10'); //10获取10条记录 (table.id > temp.id) >号ID从小到大,<号获取最新的
}])->get();Copy

$list = Category::query()->whereIn('id', [1,2])
         ->with(['topics' => function($q) {

                $topics = Topic::query()->whereIn('category_id',[1,2])
                    ->select('id','category_id')
                    ->get()
                    ->groupBy('category_id');

                $col = collect();

                foreach ($topics as $topic) {
                    $res = $topic->filter(function ($value, $key) {
                        return $key < 3;
                    });
                    $col = $col->merge($res);
                }

                $ids = $col->pluck('id')->toArray();

                $q->find($ids);
            }])
            ->get();Copy

public function threePosts()
{
    return $this->hasMany('App\Models\Post')->take(3);
}

$categories = Category::whereIn('id', [3, 4, 5, 6])->get();
$categories->each(function ($category) {
    $category->load('threePosts');
});Copy