From 8f6a2f208c775eae7689f18155d86b2e38ba458e Mon Sep 17 00:00:00 2001 From: aitbc Date: Sun, 3 May 2026 10:20:59 +0200 Subject: [PATCH] Fix missing _fetch_chain_head method in PoAProposer --- apps/blockchain-node/src/aitbc_chain/consensus/poa.py | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/apps/blockchain-node/src/aitbc_chain/consensus/poa.py b/apps/blockchain-node/src/aitbc_chain/consensus/poa.py index 27f06847..eddcf101 100755 --- a/apps/blockchain-node/src/aitbc_chain/consensus/poa.py +++ b/apps/blockchain-node/src/aitbc_chain/consensus/poa.py @@ -109,6 +109,14 @@ class PoAProposer: self._last_proposer_id: Optional[str] = None self._last_block_timestamp: Optional[datetime] = None + def _fetch_chain_head(self) -> Optional[Block]: + """Fetch the current chain head block from the database.""" + from ..database import session_scope + with session_scope(self._config.chain_id) as session: + return session.exec( + select(Block).where(Block.chain_id == self._config.chain_id).order_by(Block.height.desc()).limit(1) + ).first() + async def start(self) -> None: if self._task is not None: return