覆盖save_formset以在Django Admin中填充内联

Question

我有1个充当主要表单的ModelAdmin和2个与之配套的admin.TabularInlines。当通过一个名为RoomList的单独模型通过多对多关系保存CleaningLog时，我试图用数据预填充CleaningEntryInline。

因此，我应该从CleaningAction模型中选择带有FK的所有记录，并将其用作EntryInline中的FK引用，但是每当我尝试保存它时，都会引发错误，但不提供任何回溯。据我了解，您需要重写save_formset（）方法，但实际上并不知道从那里去。任何帮助将是救生员！

class CleaningActionAdmin(admin.ModelAdmin):
    list_display = ['room', 'action']
    list_filter = ['room']

class CleaningEntryInline(admin.TabularInline):
    model = CleaningEntry
    extra = 0
    autocomplete_fields = ['cleaning_item']

    fieldsets = [
        (None,{'fields':[('cleaning_item', 'checked', 'na', 'grade', 'notes')]})
    ]

class CleaningLogAdmin(admin.ModelAdmin):
    def save_formset(self, request, form, formset, change):
        instances = formset.save(commit=False)
        pre_instance = form.save(commit=False)
        get_actions = EquipmentAction.objects.filter(machine_action_id=pre_instance.cleaned_machine_id)
        # This is where I'm lost...
        for action in get_actions:
          new_action, is_new_action = CleaningEntry.objects.update_or_create(
              log_entry_id=pre_instance.id,
              cleaning_item_id=action.id
              )
          new_action.save()


        for obj in formset.deleted_objects:
          obj.delete()
        for instance in instances:
            instance.save()
        formset.save_m2m()

    def save_model(self, request, obj, form, change): 
        obj.auditor = request.user.username
        obj.save()

    ordering = ('-start_time',)
    list_display = ['room_cleaned', 'order_cleaned', 'start_time', 'clean_time','cleaning_users','auditor']
    list_filter = ['stop_time', 'room_cleaned']
    fieldsets = [
        ('Cleaning Info',{'fields':[('room_cleaned', 'order_cleaned')]}),   
        (None,{'fields':[('start_time')]}),
        (None,{'fields':[('clean_time','auditor')]})
    ]
    inlines = [CleaningUserInline, CleaningEntryInline]