docs: def post(self, request, *args, **kwargs):
          """
          Method for handling POST requests.
          Validates submitted form and
          formsets. Saves if valid, re displays
          page with errors if invalid.
          """
  
          self.object = self.get_object()
          form_class = self.get_form_class()
          form = self.get_form(form_class)
          formsets = self.get_formsets(form, saving=True)
  
          valid_formsets = True
          for formset in formsets.values():
              if not formset.is_valid():
                  valid_formsets = False
                  break
  
          if self.is_valid(form, formsets):
              return self.form_valid(form, formsets)
          else:
              adminForm = self.get_admin_form(form)
              adminFormSets = self.get_admin_formsets(formsets)
              context = {
                  'adminForm': adminForm,
                  'formsets': adminFormSets,
                  'obj': self.object,
              }
              return self.form_invalid(form=form, **context)