Python Django模型中的属性

我想使用模型中的属性改进django中的视图。 注释代码运行良好，但当我在模型中添加属性时，模板中出现了空白

views.py：

        cal_day = {}
        cal_day['day'] = day
        cal_day['day_event'] = False
        cal_day['sports'] = []
        for event in event_list:
            if day >= event.reservation_date.date() and day <= event.reservation_date.date():
                cal_day['day_event'] = True
                hours_week.append(event.reservation_date.time())
                # a = Reservation.objects.get(id=event.id)                    
                # d = dict()
                # d['id'] = a.id
                # d['sport'] = a.sport
                # d['trainer'] = a.trainer
                # d['reservation_date'] = a.reservation_date
                # d['free_space'] = (a.sport.capacity - a.users.count())
                # d['duration'] = a.sport.duration
                # d['time'] = a.reservation_date.time()
                # cal_day['sports'].append(d)
                print(Reservation.reservation_info)
                cal_day['sports'].append(Reservation.reservation_info)

在终端中获取打印对象：

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如果有人能帮助我理解我做错了什么，以及我如何改进我的错误，我将非常感激：）

您不能使用该类访问该属性。注释代码正常工作，因为您正在使用一个实例：

a = Reservation.objects.get(id=event.id)
d = dict()
# ...
d['reservation_date'] = a.reservation_date  # this works!

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一个问题，嗯？听起来很严重。很好的破解，因为标题上不允许使用“问题”这个词。您似乎不打印实例属性，而是打印类1。

a = Reservation.objects.get(id=event.id)
d = dict()
# ...
d['reservation_date'] = a.reservation_date  # this works!