Add "last paid" column to member list

members/models.py

@@ -97,6 +97,15 @@ class Member(BaseMember):
     '''
     created = models.DateTimeField(default=datetime.now)
 
+    def last_paid(self):
+        try:
+            payments = Payment.objects.filter(member=self)
+            latest = payments.latest('date')
+            date = latest.date
+            return date
+        except DoesNotExist:
+            return None
+
     @staticmethod
     def from_array(array):
         if len(array) != 6: