fix/add_optional_to_model

- Fixed the nested model automatically generation.

Author: JCGCosta

CHANGELOG.txt

@@ -1,10 +1,7 @@
 Change Log
 ===============
-VERSION="0.0.21"
+VERSION="0.0.22"
 LAST_UPDATE="11/02/2026"
 ------------------
-- Added a mechanism to automatically get the expected output
-  from the ontology and add the expected response schema.
-- Added to the example the updates required to test the new
-  feature of response schema.
+- Fixed the nested model automatically generation.
 ------------------

OntologyToAPI/core/Utility.py

@@ -5,7 +5,7 @@
 import logging
 from pathlib import Path
 from pydantic import BaseModel, create_model, ConfigDict
-from typing import Any, List, Dict, Union
+from typing import Any, List, Dict, Union, Optional
 import rdflib
 from Settings import auto_config as cfg
 
@@ -97,12 +97,12 @@ def generate_pydantic(model_name: str, node_dict: Dict) -> type[BaseModel]:
             if children:
                 sub_model = generate_pydantic(f"{field_name}Model", children)
                 if field_type_str == 'object_list':
-                    fields[field_name] = (List[sub_model], ...)
+                    fields[field_name] = (Optional[List[sub_model]], None)
                 else:
-                    fields[field_name] = (sub_model, ...)
+                    fields[field_name] = (Optional[sub_model], None)
             else:
                 python_type = TYPE_MAP.get(field_type_str, Any)
-                fields[field_name] = (python_type, ...)
+                fields[field_name] = (Optional[python_type], None)
         return create_model(model_name, **fields, __config__=ConfigDict(extra='allow'))
 
     return generate_pydantic(name, tree)

example/bm.py

@@ -7,15 +7,7 @@ async def convert_temperature_c_to_f(data):
             "converted": data.params["temperature_c"] * 9 / 5 + 32,
             "test": {
                 "inner": "lorem ipsum",
-            },
-            "test2": [
-                {
-                    "inner1": "lorem ipsum 1",
-                },
-                {
-                    "inner1": "lorem ipsum 2",
-                }
-            ]
+            }
         }
     else:
         return {