Question

我正在尝试实施一个平均时间功能，允许用户输入医生的等待时间。但我一直得到这个错误，我不知道如何解决它。我尝试过研究，但我仍然很困惑。

Traceback:
File "/Library/Python/2.7/site-packages/django/core/handlers/base.py" in get_response
  114.                     response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "/Library/Python/2.7/site-packages/django/contrib/auth/decorators.py" in _wrapped_view
  22.                 return view_func(request, *args, **kwargs)
File "views.py" in addWaitingTime
  111.     time = escape(post['time'])
File "/Library/Python/2.7/site-packages/django/utils/datastructures.py" in __getitem__
  301.             raise MultiValueDictKeyError(repr(key))

Exception Type: MultiValueDictKeyError at /waiting_time/
Exception Value: "'time'"

views.py

@login_required
def addWaitingTime(request):
    post = request.POST
    time = escape(post['time'])
    doctor_seeker = post['userId']
    doctor = post['doctorId']

    if len(time) > 1:
        newTime = WaitingTime(time=time, doctor_seeker_id = userId, doctor_id = doctorId)
        newTime.save()

    url = "/docprofile/"+str(doctor_id)+"/"
    return HttpResponseRedirect(url)

models.py

class WaitingTime(models.Model):
    time_choices = ( (10, 'Less than 10 Minutes'), (20, 'Less than 20 Minutes'), (30, 'Less than 30 Minutes'))
    time = models.IntegerField(choices = time_choices)
    doctor_id = models.IntegerField()
    doctor_seeker_id = models.IntegerField()

    def __unicode__(self):
        return u"%s %s" % (self.time, self.doctor_id)

class Doctor(models.Model):
    name = models.CharField(max_length=30)
    specialization = models.ForeignKey(Specialization)
    clinic = models.ForeignKey(Clinic)
class DoctorSeeker(models.Model):
    name = models.CharField(max_length=30)
    email = models.EmailField()
    user = models.OneToOneField(User, unique=True)

Answer 1

问题是post对象中没有变量'time'。

我建议的是：

1）通过将其打印出来或将其写入文件，查看帖子对象的外观。（我想你可能会使用get而不是post。）

2）当您使用用户输入的数据时，总是希望它可能与预期的不同。（恶意用户或蜘蛛可能正在抓取您的网站。）而是使用：

time = post.get('time')
if time:
    time = escape()
else:
    # No time value was submitted ....

Answer 2

正如cchristelis所说，错误是因为您的POST数据中没有time值。

真的，你应该使用Django＆＃39; forms framework。这是验证用户输入和使用它的适当工具。

Django 1.6：MultiValueDictKeyError

2 个答案: