Snippet for Django

django.py

from django.db import models
from django.contrib.humanize.templatetags.humanize import intcomma

class Package(models.Model):
  PACK_STATUS = [('a', 'Aktif'), ('n', 'Non-Aktif')]
  code = models.CharField('Kode', max_length=3, blank=True, null=True)
  price = models.IntegerField('Harga', blank=False, null=False, default=0)    
  state = models.CharField('Status', max_length=1, choices=PACK_STATUS, default='a')
  created_at = models.DateTimeField('dibuat', auto_now_add=True)
  updated_at = models.DateTimeField('diupdate', auto_now=True)
  
  class Meta:
      unique_together = ('code', 'state',)
      verbose_name_plural = 'Paket Pendaftaran'
    
  def __str__(self):
      return self.name+" - "+intcomma(int(self.price))

views.py

from django.shortcuts import render,HttpResponse
from django.http import JsonResponse
from django.views.decorators.csrf import csrf_exempt
from django.contrib.auth.decorators import login_required
from django.core.exceptions import ObjectDoesNotExist

@login_required(login_url='/admin/login?next=/rakornas/presence')
@csrf_exempt
def presence(req, event_id):
    context = {'event': Event.objects.get(pk=event_id)}

    try:
      peserta = Peserta.objects.filter(qr_path=req.POST.get('qr_path'))

      presence = Presence()
      presence.event = context['event']
      presence.peserta = peserta[0]            
      presence.save()
      response = {'error': None, 'peserta': {'name': peserta[0].name }}
      
      return JsonResponse(response)            
    except IntegrityError:
      return HttpResponse('{"error": "%s sudah presensi pada acara %s"}' 
                          % (peserta[0].name, context['event'].name))
    except ObjectDoesNotExist:
      return HttpResponse('{"error": "QR-Code Peserta tidak ditemukan"}')    
    
    return render(req, 'rakornas/form_presence.html', context=context)