code: def page(
      request,
      slug,
      rev_id=None,
      template_name='wakawaka/page.html',
      extra_context=None,
  ):
      
      try:
          queryset = WikiPage.objects.all()
          page = queryset.get(slug=slug)
          rev = page.current
  
          # Display an older revision if rev_id is given
          if rev_id:
              revision_queryset = Revision.objects.all()
              rev_specific = revision_queryset.get(pk=rev_id)
              if rev.pk != rev_specific.pk:
                  rev_specific.is_not_current = True
              rev = rev_specific
  
      # The Page does not exist, redirect to the edit form or
      # deny, if the user has no permission to add pages
      except WikiPage.DoesNotExist:
          if request.user.is_authenticated:
              kwargs = {'slug': slug}
              redirect_to = reverse('wakawaka_edit', kwargs=kwargs)
              return HttpResponseRedirect(redirect_to)
          raise Http404
      template_context = {'page': page, 'rev': rev}
      template_context.update(extra_context or {})
      return render(request, template_name, template_context)
docs: Displays a wiki page. Redirects to the edit view if the page doesn't exist.