from typing import Optional
from sqlalchemy.orm import Session
from mooc.crud.crud_base import CRUDBase
from mooc.models.cover_reply import CoverReply
from mooc.schemas.cover_reply import CoverReplyCreate, CoverReplyUpdate

class CRUDCoverReply(CRUDBase[CoverReply, CoverReplyCreate, CoverReplyUpdate]):
    def get_by_id(self, db: Session, *, id: int) -> Optional[CoverReply]:
        return self.get_by_field(db, "id", id)

# 创建实例
cover_reply = CRUDCoverReply(CoverReply)