我已经阅读了每篇“InterityError”+“may no be NULL”的帖子,但仍然无法找出导致此错误的原因。
我有一个由两部分组成的注册表单。第一部分只是选择产品。这会将产品 ID 作为 URL 的一部分传递到下一页,在那里他们输入个人信息。在我开始删除字段之前,我可以让表单正常工作——我正在使用模型表单——因为不需要显示某些字段。
这是我的模型和modelForm:
class SimpleSubscriber(models.Model):
name = models.CharField(max_length=255)
address = models.CharField(max_length=200)
city = models.CharField(max_length=100)
state = models.CharField(max_length=2)
zipcode = models.CharField(max_length=9)
phone = models.CharField(max_length=10)
email = models.EmailField()
date_created = models.DateTimeField(null=True)
sub_type = models.ForeignKey(Product)
def __unicode__(self):
return self.name
class SubscriberForm(ModelForm):
class Meta:
model = SimpleSubscriber
fields = ('name', 'address', 'city', 'state', 'zipcode', 'phone', 'email', 'sub_type',)#'date_created',
这是我的观点:
def select_product(request):
title = "get yourself an e-edition. wurd."
pform = Product.objects.order_by('product_active')
if request.method == 'POST': # If the form has been submitted...
pform = ProductForm(request.POST) # A form bound to the POST data
if pform.is_valid(): # All validation rules pass
# ...
return HttpResponseRedirect('signup/%i' % pform.id) # Redirect after POST
else:
form = ProductForm() # An unbound form
return render_to_response('signup/index.html', {'title': title, 'pform': pform}, context_instance=RequestContext(request))
def subscriber_signup(request, product_id):
productchoice = Product.objects.get(id=product_id)
now = datetime.datetime.now()
title = "We need some information."
if request.method == 'POST': # If the form has been submitted...
sform = SubscriberForm(request.POST) # A form bound to the POST data
if sform.is_valid(): # All validation rules pass
sform.date_created = now
sform.sub_type = productchoice
sform.save()
return HttpResponseRedirect('thankyou/') # Redirect after POST
else:
sform = SubscriberForm() # An unbound form
return render_to_response('signup/detail.html', {'title': title, 'sform': sform, 'productchoice': productchoice, 'now': now.date(),}, context_instance=RequestContext(request))
我认为它与modelForm有关,但我很新,所以我真的不知道。如果我将所有字段添加到 SubscriberForm,那么它们会被填写并且一切正常。但是我不希望用户在填写表格时必须说出来,所以我现在输入 sform.date_created = 并且我希望通过他们在上一页中选择的选项自动填写 product_id。但是如果我从表单中排除这些字段,它会抛出 IntegrityError,这对于解释要更改的内容没有多大帮助。
关于我在哪里搞砸的任何提示?
谢谢,