text: from cities_light.models import City, Country, Region
  from django import shortcuts
  from django.contrib.auth.models import Group, User
  from django.db.models import Q
  
  
  def navigation_autocomplete(request,
      template_name='navigation_autocomplete/autocomplete.html'):
  
      q = request.GET.get('q', '')
      context = {'q': q}
  
      queries = {}
      queries['users'] = User.objects.filter(
          Q(username__icontains=q) |
          Q(first_name__icontains=q) |
          Q(last_name__icontains=q) |
          Q(email__icontains=q)
      ).distinct()[:3]
      queries['groups'] = Group.objects.filter(name__icontains=q)[:3]
      queries['cities'] = City.objects.filter(search_names__icontains=q)[:3]
      queries['regions'] = Region.objects.filter(name_ascii__icontains=q)[:3]
      queries['countries'] = Country.objects.filter(name_ascii__icontains=q)[:3]
  
      context.update(queries)
  
      return shortcuts.render(request, template_name, context)
  