Chương 14-Bài 3. Xây dựng chức năng Tìm kiếm theo nhiều tiêu chí bằng Model Eloquent

public function index(Request $request)
    {
        $query = User::where('company_id', $request->input('company_id'));

        if ($request->has('last_name'))
        {
            $query->where('last_name', 'LIKE', '%' . $request->input('last_name') . '%');
        }

        if ($request->has('name'))
        {
            $query->where(function ($q) use ($request)
            {
                return $q->where('first_name', 'LIKE', $request->input('name') . '%')
                    ->orWhere('last_name', 'LIKE', '%' . $request->input('name') . '%');
            });
        }

        $query->whereHas('roles', function ($q) use ($request)
        {
            return $q->whereIn('id', $request->input('roles'));
        })
            ->whereHas('clients', function ($q) use ($request)
            {
                return $q->whereHas('industry_id', $request->input('industry'));
            });

        return $query->get();
    }