LIL-274. Fix succes & error urls

apps/payment/views.py

@@ -15,6 +15,7 @@ class CourseBuyView(TemplateView):
     template_name = 'payment/paymentwall_widget.html'
 
     def get(self, request, pk=None, *args, **kwargs):
+        host = request.scheme + '://' + request.get_host()
         course = Course.objects.get(id=pk)
         course_payment = CoursePayment.objects.create(
             user=request.user,
@@ -31,9 +32,9 @@ class CourseBuyView(TemplateView):
             'pw',
             [product],
             extra_params={
-                'lang': 'ru_RU',
-                'success_url': reverse_lazy('payment-success'),
-                'failure_url': reverse_lazy('payment-error'),
+                'lang': 'ru',
+                'success_url': host + str(reverse_lazy('payment-success')),
+                'failure_url': host + str(reverse_lazy('payment-error')),
             }
         )