File size: 4,525 Bytes
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import uuid
from typing import Optional
from sqlalchemy.orm import Session
from open_webui.internal.db import Base, get_db, get_db_context
from pydantic import BaseModel, ConfigDict
from sqlalchemy import BigInteger, Column, String, Text
####################
# Memory DB Schema
####################
class Memory(Base):
__tablename__ = "memory"
id = Column(String, primary_key=True, unique=True)
user_id = Column(String)
content = Column(Text)
updated_at = Column(BigInteger)
created_at = Column(BigInteger)
class MemoryModel(BaseModel):
id: str
user_id: str
content: str
updated_at: int # timestamp in epoch
created_at: int # timestamp in epoch
model_config = ConfigDict(from_attributes=True)
####################
# Forms
####################
class MemoriesTable:
def insert_new_memory(
self,
user_id: str,
content: str,
db: Optional[Session] = None,
) -> Optional[MemoryModel]:
with get_db_context(db) as db:
id = str(uuid.uuid4())
memory = MemoryModel(
**{
"id": id,
"user_id": user_id,
"content": content,
"created_at": int(time.time()),
"updated_at": int(time.time()),
}
)
result = Memory(**memory.model_dump())
db.add(result)
db.commit()
db.refresh(result)
if result:
return MemoryModel.model_validate(result)
else:
return None
def update_memory_by_id_and_user_id(
self,
id: str,
user_id: str,
content: str,
db: Optional[Session] = None,
) -> Optional[MemoryModel]:
with get_db_context(db) as db:
try:
memory = db.get(Memory, id)
if not memory or memory.user_id != user_id:
return None
memory.content = content
memory.updated_at = int(time.time())
db.commit()
db.refresh(memory)
return MemoryModel.model_validate(memory)
except Exception:
return None
def get_memories(self, db: Optional[Session] = None) -> list[MemoryModel]:
with get_db_context(db) as db:
try:
memories = db.query(Memory).all()
return [MemoryModel.model_validate(memory) for memory in memories]
except Exception:
return None
def get_memories_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> list[MemoryModel]:
with get_db_context(db) as db:
try:
memories = db.query(Memory).filter_by(user_id=user_id).all()
return [MemoryModel.model_validate(memory) for memory in memories]
except Exception:
return None
def get_memory_by_id(
self, id: str, db: Optional[Session] = None
) -> Optional[MemoryModel]:
with get_db_context(db) as db:
try:
memory = db.get(Memory, id)
return MemoryModel.model_validate(memory)
except Exception:
return None
def delete_memory_by_id(self, id: str, db: Optional[Session] = None) -> bool:
with get_db_context(db) as db:
try:
db.query(Memory).filter_by(id=id).delete()
db.commit()
return True
except Exception:
return False
def delete_memories_by_user_id(
self, user_id: str, db: Optional[Session] = None
) -> bool:
with get_db_context(db) as db:
try:
db.query(Memory).filter_by(user_id=user_id).delete()
db.commit()
return True
except Exception:
return False
def delete_memory_by_id_and_user_id(
self, id: str, user_id: str, db: Optional[Session] = None
) -> bool:
with get_db_context(db) as db:
try:
memory = db.get(Memory, id)
if not memory or memory.user_id != user_id:
return None
# Delete the memory
db.delete(memory)
db.commit()
return True
except Exception:
return False
Memories = MemoriesTable()
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