added error message for doc retriver (#807)

Author: vasanthasaikalluri

backend/score.py

@@ -296,8 +296,7 @@ async def post_processing(uri=Form(), userName=Form(), password=Form(), database
             logging.info(f'Entity Embeddings created')
 
         if "enable_communities" in tasks:
-            model = "openai-gpt-4o"
-            await asyncio.to_thread(create_communities, uri, userName, password, database,model)
+            await asyncio.to_thread(create_communities, uri, userName, password, database)
             josn_obj = {'api_name': 'post_processing/create_communities', 'db_url': uri, 'logging_time': formatted_time(datetime.now(timezone.utc))}
             logging.info(f'created communities')
 

backend/src/communities.py

@@ -13,7 +13,8 @@
 NODE_PROJECTION_ENTITY = "__Entity__"
 MAX_WORKERS = 10
 MAX_COMMUNITY_LEVELS = 3 
-MIN_COMMUNITY_SIZE = 1
+MIN_COMMUNITY_SIZE = 1 
+COMMUNITY_CREATION_DEFAULT_MODEL = "openai_gpt_4o"
 
 
 CREATE_COMMUNITY_GRAPH_PROJECTION = """
@@ -466,7 +467,7 @@ def clear_communities(gds):
         raise
 
 
-def create_communities(uri, username, password, database,model):
+def create_communities(uri, username, password, database,model=COMMUNITY_CREATION_DEFAULT_MODEL):
     try:
         gds = get_gds_driver(uri, username, password, database)
         clear_communities(gds)