- Added PricingPlan Model

- Implement a complete cycle for buying a Matrix Chat Host
- Refactor the Payement cycle and stripe related methods

uncloud_pay/admin.py

@@ -4,7 +4,6 @@ from django.urls import path
 from django.shortcuts import render
 from django.conf.urls import url
 
-from uncloud_pay.views import BillViewSet
 from hardcopy import bytestring_to_pdf
 from django.core.files.temp import NamedTemporaryFile
 from django.http import FileResponse
@@ -90,14 +89,15 @@ admin.site.register(Bill, BillAdmin)
 admin.site.register(Product, ProductAdmin)
 
 for m in [
-        BillRecord,
         BillingAddress,
         Order,
+        BillRecord,
         Payment,
         ProductToRecurringPeriod,
         RecurringPeriod,
         StripeCreditCard,
         StripeCustomer,
-        VATRate,
+        PricingPlan,
+        VATRate
 ]:
     admin.site.register(m)