Remove delete_entity and delete_entity_relation from RediskKVStorage

This commit is contained in:
yangdx
2025-03-31 01:34:41 +08:00
parent 0a82356d08
commit 77bc9594cf

View File

@@ -8,8 +8,8 @@ if not pm.is_installed("redis"):
pm.install("redis")
# aioredis is a depricated library, replaced with redis
from redis.asyncio import Redis
from lightrag.utils import logger, compute_mdhash_id
from redis.asyncio import Redis # type: ignore
from lightrag.utils import logger
from lightrag.base import BaseKVStorage
import json
@@ -83,67 +83,3 @@ class RedisKVStorage(BaseKVStorage):
logger.info(
f"Deleted {deleted_count} of {len(ids)} entries from {self.namespace}"
)
async def delete_entity(self, entity_name: str) -> None:
"""Delete an entity by name
Args:
entity_name: Name of the entity to delete
"""
try:
entity_id = compute_mdhash_id(entity_name, prefix="ent-")
logger.debug(
f"Attempting to delete entity {entity_name} with ID {entity_id}"
)
# Delete the entity
result = await self._redis.delete(f"{self.namespace}:{entity_id}")
if result:
logger.debug(f"Successfully deleted entity {entity_name}")
else:
logger.debug(f"Entity {entity_name} not found in storage")
except Exception as e:
logger.error(f"Error deleting entity {entity_name}: {e}")
async def delete_entity_relation(self, entity_name: str) -> None:
"""Delete all relations associated with an entity
Args:
entity_name: Name of the entity whose relations should be deleted
"""
try:
# Get all keys in this namespace
cursor = 0
relation_keys = []
pattern = f"{self.namespace}:*"
while True:
cursor, keys = await self._redis.scan(cursor, match=pattern)
# For each key, get the value and check if it's related to entity_name
for key in keys:
value = await self._redis.get(key)
if value:
data = json.loads(value)
# Check if this is a relation involving the entity
if (
data.get("src_id") == entity_name
or data.get("tgt_id") == entity_name
):
relation_keys.append(key)
# Exit loop when cursor returns to 0
if cursor == 0:
break
# Delete the relation keys
if relation_keys:
deleted = await self._redis.delete(*relation_keys)
logger.debug(f"Deleted {deleted} relations for {entity_name}")
else:
logger.debug(f"No relations found for entity {entity_name}")
except Exception as e:
logger.error(f"Error deleting relations for {entity_name}: {e}")