Laravel：orderby 计数 pivot 同时使用关键字过滤父级

Question

Good morning everybody,

I have two tables, users , questions and one pivot table users_questions . A question belongs to many users. A user has many questions.

users
-----
id | name

questions
---------
id | description

users_questions
---------------
user_id | question_id

I would like to get the top 3 users who asked the most questions for a specific keyword.

To search a keyword inside a question, I use a simple filter package . The code looks like that:

Questions::with('user')
        ->filter()
        ->paginate();

To get the 3 users who asked the most questions without filtering anything, I wrote this code:

UsersQuestions::with('user')
            ->select('mep_id')
            ->selectRaw('COUNT(*) AS count')
            ->groupBy('user_id')
            ->orderByDesc('count')
            ->limit(3)
            ->get();

But I can not figure out how to "mix" those two requests together.

Answer 1

I was able to get the result I want by doing two queries: first getting the right results and then by filtering the pivot table with the previous ids.

It is one way of doing it, but I'm not sure it is the best way.

$questions = Questions::with('users')
                ->filter()
                ->pluck('id')
                ->toArray();

return QuestionsUsers::with('users')
            ->whereIn('question_id', $questions)
            ->select('user_id')
            ->selectRaw('COUNT(*) AS count')
            ->groupBy('user_id')
            ->orderByDesc('count')
            ->limit(3)
            ->get();