lingo: track transaction status, handle cancellations (#6999)

combo/apps/lingo/migrations/0006_transaction_status.py

@@ -0,0 +1,20 @@
+# -*- coding: utf-8 -*-
+from __future__ import unicode_literals
+
+from django.db import models, migrations
+
+
+class Migration(migrations.Migration):
+
+    dependencies = [
+        ('lingo', '0005_auto_20150307_1242'),
+    ]
+
+    operations = [
+        migrations.AddField(
+            model_name='transaction',
+            name='status',
+            field=models.IntegerField(null=True),
+            preserve_default=True,
+        ),
+    ]

combo/apps/lingo/models.py

@@ -94,6 +94,17 @@ class Transaction(models.Model):
     bank_data = JSONField(blank=True)
     order_id = models.CharField(max_length=200)
     user = models.ForeignKey(settings.AUTH_USER_MODEL)
+    status = models.IntegerField(null=True)
+
+    def is_paid(self):
+        return self.status == eopayment.PAID
+
+    def get_status_label(self):
+        return {
+            0: _('Running'),
+            eopayment.PAID: _('Paid'),
+            eopayment.CANCELLED: _('Cancelled'),
+        }.get(self.status) or _('Unknown')
 
 
 @register_cell_class

combo/apps/lingo/templates/lingo/combo/recent_transactions.html

@@ -4,11 +4,15 @@
 <ul>
   {% for transaction in transactions %}
   <li>{{ transaction.start_date|date:"d E o H:i"|lower }}
+    {% if transaction.is_paid %}
     <ul>
     {% for item in transaction.items.all %}
       <li>{{ item.subject }}: {{ item.amount }} €</label> (<a href="{{ item.source_url}}">voir</a>)</li>
     {% endfor %}
     </ul>
+    {% else %}
+    {{ transaction.get_status_label }}
+    {% endif %}
   </li>
   {% endfor %}
 </ul>

combo/apps/lingo/views.py

@@ -93,6 +93,7 @@ class PayView(View):
         transaction.user = request.user
         transaction.save()
         transaction.items = items
+        transaction.status = 0
         transaction.save()
 
         total_amount = sum([x.amount for x in items])
@@ -126,12 +127,19 @@ class CallbackView(View):
         regie = Regie.objects.get(id=kwargs.get('regie_pk'))
         payment = eopayment.Payment(regie.service, regie.service_options)
         payment_response = payment.response(request.environ['QUERY_STRING'])
-        assert payment_response.signed is True
-        assert payment_response.result == eopayment.PAID
+        if not payment_response.result == eopayment.CANCELLED:
+            # cancellation are not signed...
+            assert payment_response.signed is True
+
         transaction = Transaction.objects.get(order_id=payment_response.order_id)
+        transaction.status = payment_response.result
         transaction.bank_data = payment_response.bank_data
         transaction.end_date = timezone.now()
         transaction.save()
+
+        if payment_response.result != eopayment.PAID:
+            return HttpResponseRedirect('/')
+
         for item in transaction.items.all():
             item.payment_date = transaction.end_date
             item.save()