add cancel

http-api/app/rules/course.py

@@ -1,37 +1,24 @@
 from layercake.dateutils import now
 from layercake.dynamodb import DynamoDBPersistenceLayer, KeyPair
 
-from models import Course, Org
+from models import Course
 
 
 def create_course(
     course: Course,
-    org: Org,
     /,
+    tenant_id: str,
     persistence_layer: DynamoDBPersistenceLayer,
 ):
     now_ = now()
-
-    with persistence_layer.transact_writer() as transact:
-        transact.put(
-            item={
-                'sk': '0',
-                'tenant_id': {org.id},
-                'created_at': now_,
-                **course.model_dump(),
-            }
-        )
-        transact.put(
-            item={
-                'id': course.id,
-                'sk': 'metadata#tenant',
-                'org_id': org.id,
-                'name': org.name,
-                'created_at': now_,
-            }
-        )
-
-    return True
+    return persistence_layer.put_item(
+        item={
+            'sk': '0',
+            'tenant_id': tenant_id,
+            'created_at': now_,
+            **course.model_dump(),
+        }
+    )
 
 
 def update_course(