Question

我一直在看这几个小时，我似乎无法理解为什么我收到这条消息......

int() argument must be a string or a number, not 'tuple'

在我的views.py的这一行上（注意：异常实际上发生在django核心内部更深层，但这是我的代码行，最终触发了异常）......

service_interest = ServiceInterest.objects.get_or_create(service = service, client = client)

为什么我会收到此错误？为了您的利益，请参阅下面的models.py，一个forms.py和来自views.py的代码段。

models.py：

class Client(models.Model):
  name = models.CharField(max_length=100)
  email = models.EmailField()
  site = models.URLField()
  contact_date = models.DateField(default = datetime.date.today())

class Service(models.Model):
  name = models.CharField(max_length=200)

class ServiceInterest(models.Model):
  service = models.ForeignKey('Service')
  client = models.ForeignKey('Client')

  class Meta:
    unique_together = ("service", "client")

... forms.py

class ContactForm(forms.Form):


SERVICE_CHOICES = (
    ('first_choice', 'Description of first choice'),
    ('second_choice', 'Description of second choice'),
    ('third_choice', 'Description of third choice'),
    ('other', 'Other')
  )

  SERVICE_CHOICES_DICT = dict(SERVICE_CHOICES)

  name = forms.CharField(label='What would you like us to call you?', max_length=200, required=False)
  email = forms.EmailField(label='What is your email address?', help_text='Ex: yourname@gmail.com')
  url = forms.URLField(label='If you have a website, please provide a link', required=False, help_text="Ex: www.yoursite.com")
  service_interest = forms.MultipleChoiceField(label="Please check all of the services you're interested in:", widget=forms.widgets.CheckboxSelectMultiple, choices=SERVICE_CHOICES, required=True)
  other = forms.CharField(label='If you selected \"Other\", please specify:', max_length=200, required=False)
  message = forms.CharField(max_length=10000, required=False, label='Any other information you think we should know?', widget=forms.widgets.Textarea)

  def clean_other(self):
    cleaned_data = super(ContactForm, self).clean()
    if 'service_interest' in cleaned_data.keys():
      options = cleaned_data['service_interest']
      if 'other' in options:
        other_input = cleaned_data['other']
        if other_input == None or len(other_input) == 0:
          raise forms.ValidationError('Required when \"Other\" is checked')

    return cleaned_data

来自views.py的相关代码：

  name = form.cleaned_data['name']
  email = form.cleaned_data['email']
  url = form.cleaned_data['url']
  interests = form.cleaned_data['service_interest']
  other = form.cleaned_data['other']
  message = form.cleaned_data['message']

  client = Client.objects.get_or_create(name = name, email = email, site = url)
  for interest in interests:
    service = None
    if(interest != 'other'):
      service = Service.objects.get_or_create(name = ContactForm.SERVICE_CHOICES_DICT[interest])
    else:
      service = Service.objects.get_or_create(name = other)

    # Appears to be responsible for the stack trace, even though exception
    # is one level deeper in...
    # /Library/Python/2.7/site-packages/django/core/handlers/base.py in get_response
    service_interest = ServiceInterest.objects.get_or_create(service = service, client = client)

Answer 1

get_or_create以(instance, created)的形式返回一个元组。第二个参数告诉你是否必须创建它，显然已经足够了。请改为：

client, created = Client.objects.get_or_create(name = name, email = email, site = url)

django - int参数必须是字符串或数字，而不是'元组'

1 个答案: