update layercake version

http-api/app/rules/org.py

@@ -1,5 +1,5 @@
 from layercake.dateutils import now
-from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair, TransactItems
+from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
 
 
 def update_policies(
@@ -11,30 +11,30 @@ def update_policies(
     persistence_layer: DynamoDBPersistenceLayer,
 ):
     now_ = now()
-    transact = TransactItems(persistence_layer.table_name)
 
-    if payment_policy:
-        transact.put(
-            item={
-                'id': id,
-                'sk': 'metadata#payment_policy',
-                'create_date': now_,
-            }
-            | payment_policy
-        )
-    else:
-        transact.delete(key=KeyPair(id, 'metadata#payment_policy'))
+    with persistence_layer.transact_writer() as transact:
+        if payment_policy:
+            transact.put(
+                item={
+                    'id': id,
+                    'sk': 'metadata#payment_policy',
+                    'create_date': now_,
+                }
+                | payment_policy
+            )
+        else:
+            transact.delete(key=KeyPair(id, 'metadata#payment_policy'))
 
-    if billing_policy:
-        transact.put(
-            item={
-                'id': id,
-                'sk': 'metadata#billing_policy',
-                'create_date': now_,
-            }
-            | billing_policy
-        )
-    else:
-        transact.delete(key=KeyPair(id, 'metadata#billing_policy'))
+        if billing_policy:
+            transact.put(
+                item={
+                    'id': id,
+                    'sk': 'metadata#billing_policy',
+                    'create_date': now_,
+                }
+                | billing_policy
+            )
+        else:
+            transact.delete(key=KeyPair(id, 'metadata#billing_policy'))
 
-    return persistence_layer.transact_write_items(transact)
+    return True