from typing import Optional
from sqlalchemy.orm import Session
from mooc.crud.crud_base import CRUDBase
from mooc.models.rule import Rule
from mooc.schemas.rule import RuleCreate, RuleUpdate

class CRUDRule(CRUDBase[Rule, RuleCreate, RuleUpdate]):
    def get_by_id(self, db: Session, *, id: int) -> Optional[Rule]:
        return self.get_by_field(db, "Id", id)  # 注意这里使用 "Id" 而不是 "id"

# 创建实例
rule = CRUDRule(Rule)