old_contents: from django.http import HttpResponse
  from monitor import driver
  from core.models import *
  import json
  
  def Stats(request):
      model = request.GET['model_name']
      pk = int(request.GET['pk'])
      meter = request.GET['meter']
      controller_name = request.GET['controller_name']
      
      controller = Controller.objects.filter(name=controller_name)[0]
      keystone = {'username':controller.admin_user, 'password':controller.admin_password, 'tenant_name':controller.admin_tenant, 'auth_url':controller.auth_url, 'cacert':'/etc/ssl/certs/ca-certificates.crt'}
  
      for k,v in keystone.items():
          keystone['os_'+k] = v
      
      meters = driver.get_meter(meter, model, pk, keystone)
      return HttpResponse(json.dumps(meters))
  
new_contents: from django.http import HttpResponse
  from monitor import driver
  from core.models import *
  import json
  
  def Stats(request):
      model = request.GET['model_name']
      pk = int(request.GET['pk'])
      meter = request.GET['meter']
      controller_name = request.GET['controller_name']
      
      controller = Controller.objects.filter(name=controller_name)
  
      if len(controller)==0:
          # controller was not found...
          # probably should put some kind of error response here
          return HttpResponse(json.dumps({"stat_list": []}))
  
      controller=controller[0]
      keystone = {'username':controller.admin_user, 'password':controller.admin_password, 'tenant_name':controller.admin_tenant, 'auth_url':controller.auth_url, 'cacert':'/etc/ssl/certs/ca-certificates.crt'}
  
      for k,v in keystone.items():
          keystone['os_'+k] = v
  
      meters = driver.get_meter(meter, model, pk, keystone)
      return HttpResponse(json.dumps(meters))
  
subject: return empty statistics if controller is not found