我浏览了许多其他文章-但找不到适合我的情况的任何内容。我在POST中遇到了一些数据,但是当我保存表单时-数据没有出现在数据库中。
我对为什么会这样有些困惑,我尝试了各种方法,但是似乎没有一种方法真正适用于我的情况。大多数情况与未发布数据有关,我的数据已发布,只是没有保存。
我有以下模型:
class Payment(models.Model):
METHODS = (
("Cash", "Cash"),
("Check", "Check"),
("Credit Card", "Credit Card")
)
amount = models.DecimalField(decimal_places=2, max_digits=6)
method = models.CharField(
max_length=15,
choices=METHODS,
default="Credit Card"
)
stripe_id = models.CharField(max_length=255, blank=True, null=True)
check_number = models.IntegerField(blank=True, null=True)
created_at = models.DateTimeField(auto_now_add=True)
这是我的PaymentForm:
class PaymentForm(forms.ModelForm):
method = forms.CharField(
max_length=25,
widget=forms.TextInput(attrs={
"class": "form-control",
"readonly": "True",
})
)
amount = forms.DecimalField(
decimal_places=2,
max_digits=6,
widget=forms.TextInput(attrs={
"class": "form-control",
"readonly": "True",
})
)
stripe_id = forms.CharField(
widget=forms.HiddenInput(),
required=False
)
check_number = forms.IntegerField(
widget=forms.TextInput(attrs={"class": "form-control"}),
required=False
)
class Meta:
model = Payment
fields = (
'amount',
'method',
'stripe_id',
'check_number',
)
def clean_check_number(self):
method = self.cleaned_data["method"]
check_number = self.cleaned_data["check_number"]
if method == "Check" and not check_number:
raise forms.ValidationError("Check number is required.")
这里是我的与开机自检相关的view.py
函数:
if request.method == "POST":
# Create a copy of the POST data so we can input data for CC payments
post_data = request.POST.copy()
# Set the PaymentForm with the copied data (muteable)
# required for some of the stripe stuff we do
payment_form = PaymentForm(post_data)
if 'stripeToken' in request.POST:
# This is wrapped in extensive try/catch in reality but I left
# it out for brevity
charge = stripe.Charge.create(
amount=stripe_cost,
currency="usd",
description="Payment",
source=request.POST["stripeToken"],
receipt_email=request.POST["stripeEmail"],
)
# add things to the form that aren't there
# from the stripe reply
payment_form.data['method'] = "Credit Card"
payment_form.data['stripe_id'] = charge["id"]
# This part works fine
if payment_form.is_valid():
# either a non-stripe payment
# or the next step after the stripe stuff is don
payment_form.save(commit=False)
print(payment_form.data)
payment = payment_form.save()
# The data saves to the DB, but the check_number is empty!
messages.success(request, "Thank you for your payment!")
return redirect("my_app:index")
表格有效后的打印声明将像这样打印出来:
<QueryDict: {'csrfmiddlewaretoken': ['3blahblahblah'], 'amount': ['9.10'], 'method': ['Check'], 'check_number': ['123455'], 'stripe_id': ['']}>
我遇到的问题是:当用户选择Check
作为付款并保存付款(带有支票号码)时,支票号码没有保存到数据库中。
如我们所见,request.POST
数据显示了那里的所有数据(包括支票号码)-但是当check_number
运行时,.save()
没有存储在数据库中。
可能导致这种情况发生,以及如何对此进行修正?
is_valid之后,您应该打印form.cleaned_data
,而不是form.data
。如果这样做,您会看到check_number为空。这样做的原因是,您没有从clean_check_number
方法中返回任何内容。您始终需要从这些方法中返回清理后的值。