fix relationshipt

konviva-events/app/events/enroll.py

@@ -4,6 +4,7 @@ from aws_lambda_powertools.utilities.data_classes import (
     event_source,
 )
 from aws_lambda_powertools.utilities.typing import LambdaContext
+from layercake.dateutils import now
 from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
 
 import konviva
@@ -20,6 +21,7 @@ def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
     new_image = event.detail['new_image']
     user_id = new_image['user_id']
     class_id = new_image['class_id']
+    now_ = now()
 
     try:
         enrollment_id = konviva.enroll(
@@ -30,11 +32,22 @@ def lambda_handler(event: EventBridgeEvent, context: LambdaContext) -> bool:
         logger.exception(err)
         return False
 
-    return enrollment_layer.update_item(
+    with enrollment_layer.transact_writer() as transact:
-        key=KeyPair(new_image['id'], 'konviva'),
+        transact.update(
-        update_expr='SET enrollment_id = :enrollment_id',
+            key=KeyPair(new_image['id'], 'konviva'),
-        cond_expr='attribute_exists(sk)',
+            update_expr='SET enrollment_id = :enrollment_id',
-        expr_attr_values={
+            cond_expr='attribute_exists(sk)',
-            ':enrollment_id': enrollment_id,
+            expr_attr_values={
-        },
+                ':enrollment_id': enrollment_id,
-    )
+            },
+        )
+        transact.put(
+            item={
+                'id': 'konviva',
+                'sk': str(enrollment_id),
+                'enrollment_id': new_image['id'],
+                'created_at': now_,
+            }
+        )
+
+        return True