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fix: cleanup orphaned entities after episode deletion #1130

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fix: cleanup orphaned entities after episode deletion #1130

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18 changes: 18 additions & 0 deletions graphiti_core/graphiti.py
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Original file line number Diff line number Diff line change
Expand Up @@ -1315,3 +1315,21 @@ async def remove_episode(self, episode_uuid: str):
await Node.delete_by_uuids(self.driver, [node.uuid for node in nodes_to_delete])

await episode.delete(self.driver)

orphan_query: LiteralString = """
MATCH (n:Entity)
WHERE NOT EXISTS { (e:Episodic)-[:MENTIONS]->(n) }
AND n.group_id = $group_id
RETURN n.uuid AS uuid
"""

records, _, _ = await self.driver.execute_query(
orphan_query,
group_id=episode.group_id,
routing_="r",
)

orphaned_uuids = [record["uuid"] for record in records]

if orphaned_uuids:
await Node.delete_by_uuids(self.driver, orphaned_uuids)