MultiValueDictKeyError at /update 'date'

Question

我正在尝试更新数据库，但遇到了MultiValueDictKeyError。

问题由"日期"触发，如：

t.date = request.POST.get('date')

我试过

print(request.POST)

结果：

<QueryDict: {'csrfmiddlewaretoken': ['9mgfDaQRsH4Pv5rvglufS3wC61QDL5i9tcOqmBQwNFAKFpzE79h9wBY8St9CwBsB'], 'ID_number': ['4'], 'date_month': ['1'], 'date_day': ['1'], 'date_year': ['2020'], 'first_name': ['Gedo'], 'last_name': ['Prasad'], 'Membership_Start_date_month': ['1'], 'Membership_Start_date_day': ['1'], 'Membership_Start_date_year': ['2020'], 'Membership_End_date_month': ['4'], 'Membership_End_date_day': ['1'], 'Membership_End_date_year': ['2020'], 'member_type': ['Gym&Sauna'], 'payment_type': ['3 Month'], 'rate': ['23'], 'paid': ['20'], 'due': ['3'], 'Contact_number': ['1121212129'], 'Email': ['[e-mail]'], 'Remarks': ['gsa']}>

请注意，日期字段分别给出"date_month"、"date_day"one_answers"date_year"。也许这就是问题所在。但我不知道答案。任何建议都将是非常有帮助的，因为我是一个学生和初学者。

这是我的型号.py:

class Member(models.Model):
ID_number = models.IntegerField()
date = models.DateField(verbose_name='date')
first_name = models.CharField(max_length=30)
last_name = models.CharField(max_length=30)
member_type = models.CharField(
max_length=30,
choices=MEMBERSHIP_CHOICES,
)
payment_type = models.CharField(
max_length=30,
choices=PAYMENT_TYPE_CHOICES,
)
Membership_Start_date = models.DateField(verbose_name='Membership_Start_date')
Membership_End_date = models.DateField(verbose_name='Membership_End_date')
rate = models.IntegerField()
paid = models.IntegerField()
due = models.IntegerField()
Contact_number = models.CharField(max_length=14)
Email = models.EmailField()
Remarks = models.CharField(max_length=255, blank = True, null = True)
def __str__(self):
return str(self.ID_number) + "  " + self.first_name + " " + self.last_name

Answer 1

因此，我确实找到了一个基于日期字段格式的解决方法，即YYYY-MM-DD:

t.date = request.POST['date_year'] + "-" + request.POST['date_month'] + "-" + request.POST['date_day']

但是还有别的办法吗？