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:

members/tables.py

@@ -6,6 +6,8 @@ from members.models import Member, Payment, Request
 
 class MemberTable(tables.Table):
 
+    last_paid = tables.DateTimeColumn(accessor='last_paid', verbose_name='Last paid')
+
     options = tables.TemplateColumn(
         '<a class="data-table-button btn btn-primary" href="/members/edit/{{ record.id }}">' +
         _('Edit') +