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9 changes: 6 additions & 3 deletions src/memos/graph_dbs/neo4j.py
Original file line number Diff line number Diff line change
Expand Up @@ -74,13 +74,16 @@ def _flatten_info_fields(metadata: dict[str, Any]) -> dict[str, Any]:

def _sanitize_neo4j_value(value: Any) -> Any:
"""Convert values unsupported by Neo4j properties into safe serializations."""
if value is None or isinstance(value, (str, int, float, bool)):
if value is None or isinstance(value, str | int | float | bool):
return value

if isinstance(value, list):
if all(item is None or isinstance(item, (str, int, float, bool)) for item in value):
if all(item is None or isinstance(item, str | int | float | bool) for item in value):
return value
return [json.dumps(item, ensure_ascii=False) if isinstance(item, (dict, list)) else str(item) for item in value]
return [
json.dumps(item, ensure_ascii=False) if isinstance(item, dict | list) else str(item)
for item in value
]

if isinstance(value, dict):
return json.dumps(value, ensure_ascii=False, sort_keys=True)
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