Trying to use findOrFail() instead of get()

[HamzaInPerth]

        $log = DB::table('dmlog')
        ->select(
            'dmlog.*',
            'membership.membership',
            'department.department',
            'category.category',
            'communication.communication',
            'room.room AS room',
            'room.category AS room_cat',
            'roommove.room AS roommove',
            'roommove.category AS roommove_cat'
        )
        ->join('membership', 'membership.id', '=', 'id_membership')
        ->join('department', 'department.id', '=', 'id_department')
        ->join('category', 'category.id', '=', 'id_category')
        ->join('communication', 'communication.id', '=', 'id_communication')
        ->join('room', 'room.id', '=', 'id_room')
        ->join('room AS roommove', 'roommove.id', '=', 'id_roommove')
        ->where('dmlog.id', $id)->get(); // <----- HERE
        return response()->json($log);

Instead of get() I would like to use findOrFail but it doesn't work that way. So what is the best way to send a 404 response if the row doesn't exist ?

Thank you for your help.

[HamzaInPerth]

I've figured it out :

abort_if($log->isEmpty(), 404);

Thx tho.