old_contents: from django.shortcuts import render
  from django.views.generic.list import ListView
  from django.views.generic.detail import DetailView
  from game.models import *
  class LocationListView(ListView):
  
      template_name = 'game/location_list.html'
      context_object_name = 'location_list'
  
      def get_queryset(self):
          return Detail.objects.all()
  
      def get_context_data(self, **kwargs):
          context = super(LocationListView, self).get_context_data(**kwargs)
          return context
  
  
  
  class LocationDetailView(DetailView):
  
      model = Location
  
      context_object_name = 'location_detail'
  
      def get_context_data(self, **kwargs):
          context = super(LocationDetailView, self).get_context_data(**kwargs)
          context['detail_info'] = Detail.objects.all()
          return context
  
new_contents: from django.shortcuts import render
  from django.views.generic.list import ListView
  from django.views.generic.detail import DetailView
  from game.models import Location
  class LocationListView(ListView):
  
      template_name = 'game/location_list.html'
      context_object_name = 'location_list'
  
      def get_queryset(self):
          return Location.objects.all()
  
      def get_context_data(self, **kwargs):
          context = super(LocationListView, self).get_context_data(**kwargs)
          return context
  
  
  
  class LocationDetailView(DetailView):
  
      model = Location
  
      context_object_name = 'location_detail'
      
      def get_context_data(self, **kwargs):
          l_pk = self.kwargs['pk']
          Location.objects.filter(pk=l_pk).update(visited = True)
          context = super(LocationDetailView, self).get_context_data(**kwargs)
          return context
  
subject: Change View According to model Changes