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fix: remove old mem #361

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Merged
merged 1 commit into from
Oct 13, 2025
Merged

fix: remove old mem #361

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27 changes: 13 additions & 14 deletions src/memos/graph_dbs/nebular.py
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Original file line number Diff line number Diff line change
Expand Up @@ -443,21 +443,20 @@ def remove_oldest_memory(self, memory_type: str, keep_latest: int) -> None:
if not self.config.use_multi_db and self.config.user_name:
optional_condition = f"AND n.user_name = '{self.config.user_name}'"

count = self.count_nodes(memory_type)

if count > keep_latest:
delete_query = f"""
MATCH (n@Memory)
WHERE n.memory_type = '{memory_type}'
{optional_condition}
ORDER BY n.updated_at DESC
OFFSET {keep_latest}
DETACH DELETE n
"""
try:
try:
count = self.count_nodes(memory_type)
if count > keep_latest:
delete_query = f"""
MATCH (n@Memory)
WHERE n.memory_type = '{memory_type}'
{optional_condition}
ORDER BY n.updated_at DESC
OFFSET {keep_latest}
DETACH DELETE n
"""
self.execute_query(delete_query)
except Exception as e:
logger.warning(f"Delete old mem error: {e}")
except Exception as e:
logger.warning(f"Delete old mem error: {e}")

@timed
def add_node(self, id: str, memory: str, metadata: dict[str, Any]) -> None:
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