[QRTR-100] minor admin tweaks.

connection/tasks.py

@@ -6,6 +6,9 @@ def get_and_save_transactions(connection, start_date=None, end_date=None):
     client = connection.connect()
     transactions = client.get_transactions(start_date=start_date,
                                            end_date=end_date)
+    if "error" in transactions:
+        return False
+
     for trns in transactions:
         Transaction.objects.update_or_create(
             trans_id=trns.get("transaction_id"),

qrtr_account/admin.py

@@ -19,7 +19,7 @@ class BankAdmin(admin.ModelAdmin):
 
 @admin.register(Transaction)
 class TransactionAdmin(admin.ModelAdmin):
-    pass
+    list_display = ("authorized_date", "bank", "name")
 
 
 @admin.register(Slice)