Laravel - JQuery В некоторых случаях проверка не удалась, а в некоторых - неудача

Question

В моем проекте Laravel -5.8 я загружаю max_score при изменении Dropdown в зависимости от типа цели:

Все работает нормально, за исключением того, что проверка в некоторых случаях работает нормально и в других случаях не удалась.

CREATE TABLE `appraisal_goal_types` (
 `id` int(11) NOT NULL,
 `name` varchar(200) NOT NULL,
 `parent_id` int(11) DEFAULT NULL,
 `max_score` int(11) DEFAULT 0,
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

таблица: https://i.stack.imgur.com/hfVuJ.png

CREATE TABLE `appraisal_goals` (
  `id` int(11) NOT NULL,
  `goal_type_id` int(11) DEFAULT NULL,
  `weighted_score` int(11) DEFAULT 0,
) ENGINE=InnoDB DEFAULT CHARSET=latin1;

Контроллер

public function findScore(Request $request)
{
    $userCompany = Auth::user()->company_id;
    $userEmployee = Auth::user()->employee_id;

    $identities                     = DB::table('appraisal_identity')->select('id')->where('company_id', $userCompany)->where('is_current', 1)->first()->id;      
    $child  = DB::table('appraisal_goal_types')->where('company_id', $userCompany)->where('id',$request->id)->first();

    $parentid  = DB::table('appraisal_goal_types')->select('parent_id')->where('company_id', $userCompany)->where('id',$request->id)->first()->parent_id;       
   if(empty($child))
   {
       abort(404);
   }  
   $weightedscore = 0;
   $weightedscore = DB::table('appraisal_goals')->select(DB::raw("SUM(weighted_score) as weighted_score"))->where('appraisal_identity_id', $identities)->where('employee_id', $userEmployee)->where('parent_id', $parentid)->get();
   $maxscore = DB::table('appraisal_goal_types')->select('max_score')->find($child->parent_id);
    return response()->json([
        'maxscore' => $maxscore->max_score,
          'weightedscore' => $weightedscore
    ]);        
 }


public function create()
{
  $userCompany = Auth::user()->company_id;
  $userEmployee = Auth::user()->employee_id;

  $identities = DB::table('appraisal_identity')->select('id','appraisal_name')->where('company_id', 
  $userCompany)->where('is_current', 1)->first();

  $goaltypes   =       AppraisalGoalType::where('company_id', $userCompany)->get(); 
  $categories = AppraisalGoalType::with('children')->where('company_id', $userCompany)->whereNull('parent_id')->get();

return view('appraisal.appraisal_goals.create')
    ->with('goaltypes', $goaltypes)
    ->with('categories', $categories)
    ->with('identities', $identities)
    ;
}

маршрут / сеть. php

Route::resource('appraisal_goals', 'AppraisalGoalsController');
Route::get('get/findScore','Appraisal\AppraisalGoalsController@findScore')->name('get.scores.all');

Я отправляю max_score как json.

view

create.blade. php

      <form  action="{{route('appraisal.appraisal_goals.store')}}" method="post" class="form-horizontal" enctype="multipart/form-data">
   {{csrf_field()}}
   
      <div class="card-body">
      <div class="form-body">
      <div class="row">
        
      <div class="col-12 col-sm-6">
        <div class="form-group">
          <label class="control-label"> Goal Type:<span style="color:red;">*</span></label>
          <select id="goal_type" class="form-control" name="goal_type_id">
            <option value="">Select Goal Type</option>

            @foreach ($categories as $category)
            @unless($category->name === 'Job Fundamentals')
              <option hidden value="{{ $category->id }}" {{ $category->id == old('category_id') ? 'selected' : '' }}>{{ $category->name }}</option>

              @if ($category->children)
                @foreach ($category->children as $child)
                @unless($child->name === 'Job Fundamentals')
                  <option value="{{ $child->id }}" {{ $child->id == old('category_id') ? 'selected' : '' }}>&nbsp;&nbsp;{{ $child->name }}</option>
                @endunless
                @endforeach
              @endif
              @endunless
            @endforeach
          </select>
        </div>
      </div>    

                <input type="hidden" id="max_score" class="form-control" >
                <input type="hidden" id="weighted_score" class="form-control" >

              <div class="col-12 col-sm-6">
                <div class="form-group">
                  <label class="control-label"> Weight(%):<span style="color:red;">*</span></label>
                  <input  type="number" name="weighted_score" id="total_weighted_score" placeholder="Enter weighted score here" class="form-control" max="120" onkeyup="checkScore(this.value)">
                </div>
              </div>  

    </form>

        <script type="text/javascript">
        $(document).ready(function() {
            $(document).on('change', '#goal_type', function() {
                var air_id =  $(this).val();

                var a = $(this).parent();

                console.log("Its Change !");

                var op = "";

                $.ajax({
                    type: 'get',
                    url: '{{ route('get.scores.all') }}',
                    data: { 'id': air_id },
                    dataType: 'json',      //return data will be json
                    success: function(data) {
                        console.log(data.maxscore);
                        console.log(data.weightedscore);
                         $('#max_score').val(data.maxscore);
                         $('#weighted_score').val(data.weightedscore[0]["weighted_score"]);
                    },
                    error:function(){

                    }
                });
            });
        });
        </script>
        <script type="text/javascript">
            function checkScore(value){
                let max_score = $("#max_score").val();
                let weighted_score = $("#weighted_score").val();
                let sumValue = parseInt(weighted_score) + parseInt(value);

                if (sumValue > max_score) {
                  alert("sum value is greater than max score");
                  $("#total_weighted_score").val('');
                  return false;
                }
            }
        </script>

Раскрывающийся список изменений загружает максимальный и взвешенный баллы.

По ключу в текстовом поле weighted_score, когда сумма weighted_score и загруженного взвешенного балла больше чем max_score для parent_id, система должна отправить предупреждение.

Удивительно, что он работает нормально, когда parent_id = 1 (цели рабочего плана), но не работает на других. Почему и как я это решаю?

Спасибо