old_contents: from django.shortcuts import render
  from django.forms.models import model_to_dict
  from django.http import JsonResponse
  import json
  
  from .models import Budget
  
  # Create your views here.
  FIELDS = ['subject', 'konto', 'revenue_expenses', 'classification', 'name', 'money', 'year']
  TEXT_FIELDS = ['subject', 'name', 'revenue_expenses', 'classification', 'konto']
  
  
  def get_data(request):
      budgets = filter_model(request, Budget.objects.all())
      data = [model_to_dict(budget,
                            fields=FIELDS,
                            exclude=[])
              for budget in budgets]
      classifications = list(set(list(budgets.values_list('classification',
                                                          flat=True))))
  
      return JsonResponse({'data': data,
                           'classifications': classifications}, safe=False)
  
  
  def set_data(request):
      if request.POST:
          data = json.loads(request.content)
          Budget(subject=data['subject'],
                 konto=data['konto'],
                 revenue_expenses=data['classification'],
                 name=data['name'],
                 money=data['money'],
                 yeat=data['year']).save()
          return JsonResponse({"saved": True})
      else:
          return JsonResponse({"saved": False})
  
  
  def filter_model(request, objects):
      args = {}
      for field in TEXT_FIELDS:
          data = request.GET.get(field, None)
          if data:
              args[field + '__icontains'] = data
      objects = objects.filter(*args)
  
      data = request.GET.get('year', None)
      if data:
          years = list(map(int, data.split(',')))
          objects = objects.filter(year__in=years)
  
      data = request.GET.get('money', None)
      if data:
          money = list(map(int, data.split(',')))
          objects = objects.filter(money__gte=money[0],
                                   money__lte=money[1])
      return objects
  
  
  
  
  
  
new_contents: from django.shortcuts import render
  from django.forms.models import model_to_dict
  from django.http import JsonResponse
  import json
  
  from .models import Budget
  
  # Create your views here.
  FIELDS = ['subject', 'konto', 'revenue_expenses', 'classification', 'name', 'money', 'year']
  TEXT_FIELDS = ['subject', 'name', 'revenue_expenses', 'classification', 'konto']
  
  
  def get_data(request):
      budgets = filter_model(request, Budget.objects.all())
      data = [model_to_dict(budget,
                            fields=FIELDS,
                            exclude=[])
              for budget in budgets]
      classifications = list(set(list(budgets.values_list('classification',
                                                          flat=True))))
  
      return JsonResponse({'data': data,
                           'classifications': classifications}, safe=False)
  
  
  def set_data(request):
      if request.POST:
          data = json.loads(request.content)
          Budget(subject=data['subject'],
                 konto=data['konto'],
                 revenue_expenses=data['classification'],
                 name=data['name'],
                 money=data['money'],
                 yeat=data['year']).save()
          return JsonResponse({"saved": True})
      else:
          return JsonResponse({"saved": False})
  
  
  def filter_model(request, objects):
      args = {}
      for field in TEXT_FIELDS:
          data = request.GET.get(field, None)
          if data:
              args[field + '__icontains'] = data
      objects = objects.filter(**args)
  
      data = request.GET.get('year', None)
      if data:
          years = list(map(int, data.split(',')))
          objects = objects.filter(year__in=years)
  
      data = request.GET.get('money', None)
      if data:
          money = list(map(int, data.split(',')))
          objects = objects.filter(money__gte=money[0],
                                   money__lte=money[1])
      return objects
  
  
  
  
  
  
subject: fix args