python - 如何在 Django 电子商务项目中将 Paypal 添加到付款
问题描述
我一直在寻找将 PayPal 付款添加到我的电子商务项目的最佳方式，但我目前不知道从哪里开始，我已经阅读了 PayPal 文档
https://developer.paypal.com/demo/checkout/#/pattern/radio
目前，当用户将商品添加到购物车时，在结帐页面中有一个要填写的表格，所以在添加地址后有一个单选按钮可以从中选择是继续使用 Stripe 还是 PayPal，所以我的问题是应该我这样做是为了在选择 PayPal 收音机时打开 PayPal 登录窗口？
这是models.py
class Payment(models.Model):
stripe_charge_id = models.CharField(max_length=50)
user = models.ForeignKey(settings.AUTH_USER_MODEL,
on_delete=models.SET_NULL, blank=True, null=True)
amount = models.FloatField()
timestamp = models.DateTimeField(auto_now_add=True)
def __str__(self):
return self.user.username
这是views.py
class CheckoutView(View):
def get(self, *args, **kwargs):
try:
order = Order.objects.get(user=self.request.user, ordered=False)
form = CheckoutForm()
context = {
'form': form,
'couponform': CouponForm(),
'order': order,
'DISPLAY_COUPON_FORM': True
}
shipping_address_qs = Address.objects.filter(
user=self.request.user,
address_type='S',
default='True'
)
if shipping_address_qs.exists():
context.update(
{'default_shipping_address': shipping_address_qs[0]})
billing_address_qs = Address.objects.filter(
user=self.request.user,
address_type='B',
default='True'
)
if billing_address_qs.exists():
context.update(
{'default_billing_address': billing_address_qs[0]})
return render(self.request, "checkout.html", context)
except ObjectDoesNotExist:
messages.info(self.request, "You do not have an active order")
return redirect("core:checkout")
def post(self, *args, **kwargs):
form = CheckoutForm(self.request.POST or None)
try:
order = Order.objects.get(user=self.request.user, ordered=False)
if form.is_valid():
use_default_shipping = form.cleaned_data.get(
'use_default_shipping')
if use_default_shipping:
print("Using the defualt shipping address")
address_qs = Address.objects.filter(
user=self.request.user,
address_type='S',
default=True
)
if address_qs.exists():
shipping_address = address_qs[0]
order.shipping_address = shipping_address
order.save()
else:
messages.info(
self.request, "No default shipping address available")
return redirect('core:checkout')
else:
print("User is entering a new shipping address")
shipping_address1 = form.cleaned_data.get(
'shipping_address')
shipping_address2 = form.cleaned_data.get(
'shipping_address2')
shipping_province = form.cleaned_data.get(
'shipping_province')
shipping_country = form.cleaned_data.get(
'shipping_country')
shipping_postal_code = form.cleaned_data.get(
'shipping_postal_code')
shipping_phone_number = form.cleaned_data.get(
'shipping_phone_number')
if is_valid_form([shipping_address1, shipping_province, shipping_country, shipping_postal_code,
shipping_phone_number]):
shipping_address = Address(
user=self.request.user,
street_address=shipping_address1,
apartment_address=shipping_address2,
province=shipping_province,
country=shipping_country,
postal_code=shipping_postal_code,
phone_number=shipping_phone_number,
address_type='S'
)
shipping_address.save()
order.shipping_address = shipping_address
order.save()
set_default_shipping = form.cleaned_data.get(
'set_default_shipping')
if set_default_shipping:
shipping_address.default = True
shipping_address.save()
else:
messages.info(
self.request, "Please fill in the required shipping address fields")
use_default_billing = form.cleaned_data.get(
'use_default_billing')
same_billing_address = form.cleaned_data.get(
'same_billing_address')
if same_billing_address:
billing_address = shipping_address
billing_address.pk = None
billing_address.save()
billing_address.address_type = 'B'
billing_address.save()
order.billing_address = billing_address
order.save()
elif use_default_billing:
print("Using the default billing address")
address_qs = Address.objects.filter(
user=self.request.user,
address_type='B',
default='True'
)
if address_qs.exists():
billing_address = address_qs[0]
order.billing_address = billing_address
order.save()
else:
messages.info(
self.request, "No default billing address available")
return redirect('core:checkout')
else:
print("User is entering a new billing address")
billing_address1 = form.cleaned_data.get(
'billing_address')
billing_address2 = form.cleaned_data.get(
'billing_address2')
billing_province = form.cleaned_data.get(
'billing_province')
billing_country = form.cleaned_data.get(
'billing_country')
billing_postal_code = form.cleaned_data.get(
'billing_postal_code')
billing_phone_number = form.cleaned_data.get(
'billing_phone_number')
if is_valid_form([billing_address1, billing_province, billing_country, billing_postal_code,
billing_phone_number]):
billing_address = Address(
user=self.request.user,
street_address=billing_address1,
apartment_address=billing_address2,
province=billing_province,
country=billing_country,
postal_code=billing_postal_code,
phone_number=billing_phone_number,
address_type='B'
)
billing_address.save()
order.billing_address = billing_address
order.save()
set_default_billing = form.cleaned_data.get(
'set_default_billing')
if set_default_billing:
billing_address.default = True
billing_address.save()
else:
messages.info(
self.request, "Please fill in the required billing address fields")
return redirect('core:checkout')
payment_option = form.cleaned_data.get('payment_option')
if payment_option == 'S':
return redirect('core:payment', payment_option='stripe')
elif payment_option == 'P':
return redirect('core:payment', payment_option='paypal')
else:
messages.warning(
self.request, "Invalid payment option selected")
return redirect('core:checkout')
except ObjectDoesNotExist:
messages.warning(self.request, "You do not have an active order")
return redirect("core:order-summary")
这是forms.py
PAYMENT_CHOICES = (
('S', 'Stripe'),
('P', 'Paypal')
)
class CheckoutForm(forms.Form):
shipping_address = forms.CharField(required=False)
shipping_address2 = forms.CharField(required=False)
shipping_province = forms.CharField(required=False)
shipping_country = CountryField(blank_label='(select country)').formfield(
required=False,
widget=CountrySelectWidget(attrs={
'class': 'custom-select d-block w-100'
}))
shipping_postal_code = forms.CharField(required=False)
shipping_phone_number = forms.CharField(required=False)
billing_address = forms.CharField(required=False)
billing_address2 = forms.CharField(required=False)
billing_province = forms.CharField(required=False)
billing_country = CountryField(blank_label='(select country)').formfield(
required=False,
widget=CountrySelectWidget(attrs={
'class': 'custom-select d-block w-100'
}))
billing_postal_code = forms.CharField(required=False)
billing_phone_number = forms.CharField(required=False)
same_billing_address = forms.BooleanField(required=False)
set_default_shipping = forms.BooleanField(required=False)
use_default_shipping = forms.BooleanField(required=False)
set_default_billing = forms.BooleanField(required=False)
use_default_billing = forms.BooleanField(required=False)
payment_option = forms.ChoiceField(
widget=forms.RadioSelect, choices=PAYMENT_CHOICES)
解决方案
我建议在您的服务器上创建两条路由，一条用于“设置交易”，一条用于“捕获交易”，记录在此：https ://developer.paypal.com/docs/checkout/reference/server-integration/
选择 PayPal 单选按钮后，您可以让此事件触发 javascript 以取消隐藏 paypal 按钮容器 div，类似于：https ://developer.paypal.com/demo/checkout/#/pattern/server
对于您的用例，layout: 'horizontal'可能是最好的。
有一个示例基本 HTML/JS 实现将其与单选按钮相结合：https ://developer.paypal.com/demo/checkout/#/pattern/radio
值得拥有黄色的 PayPal 按钮和任何本地“替代”支付方式，如 PP Credit PayPal 决定在其旁边显示买家默认可见（单选按钮预选，或者根本没有单选按钮，只显示信用卡表格在它下面）。这将增加您的转化率，点击次数越少越好——PayPal 的卖点是让买家在尽可能少的点击次数中通过安全结账。
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