12 - Changing Payment Methods

src/billing/models.py

@@ -1,7 +1,7 @@
 from django.conf import settings
 from django.db import models
 from django.db.models.signals import post_save, pre_save
-
+from django.core.urlresolvers import reverse
 from accounts.models import GuestEmail
 User = settings.AUTH_USER_MODEL
 
@@ -52,14 +52,17 @@ def charge(self, order_obj, card=None):
     def get_cards(self):
         return self.card_set.all()
 
+    def get_payment_method_url(self):
+        return reverse('billing-payment-method')
+
     @property
     def has_card(self): # instance.has_card
         card_qs = self.get_cards()
         return card_qs.exists() # True or False
 
     @property
     def default_card(self):
-        default_cards = self.get_cards().filter(default=True)
+        default_cards = self.get_cards().filter(active=True, default=True)
         if default_cards.exists():
             return default_cards.first()
         return None
@@ -128,6 +131,15 @@ def __str__(self):
         return "{} {}".format(self.brand, self.last4)
 
 
+def new_card_post_save_receiver(sender, instance, created, *args, **kwargs):
+    if instance.default:
+        billing_profile = instance.billing_profile
+        qs = Card.objects.filter(billing_profile=billing_profile).exclude(pk=instance.pk)
+        qs.update(default=False)
+
+
+post_save.connect(new_card_post_save_receiver, sender=Card)
+
 
 
 # stripe.Charge.create(

src/carts/templates/carts/checkout.html

@@ -72,9 +72,11 @@ <h1>Finalize Checkout</h1>
                 <p>Cart Items: {% for product in object.cart.products.all %}{{ product }}{% if not forloop.last %}, {% endif %}{% endfor %}</p>
                 <p>Shipping Address: {{ object.shipping_address.get_address }}</p>
                 <p>Billing Address: {{ object.shipping_address.get_address }}</p>
+                <p>Payment Method: {{ billing_profile.default_card }} (<a href="{{ billing_profile.get_payment_method_url }}?next={{ request.build_absolute_uri }}">Change</a>)</p>
                 <p>Cart Total: {{ object.cart.total }}</p>
                 <p>Shipping Total: {{ object.shipping_total }}</p>
                 <p>Order Total: {{ object.total }}</p>
+
                 <form class='form' method='POST' action="">{% csrf_token %}
                     <button type='submit' class='btn btn-success'>Checkout</button>
                 </form>