package com.tcm.training.admin.live.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.tcm.training.admin.live.entity.LiveSessionQuestion;
import org.apache.ibatis.annotations.Delete;
import org.apache.ibatis.annotations.Mapper;
import org.apache.ibatis.annotations.Param;

@Mapper
public interface LiveSessionQuestionMapper extends BaseMapper<LiveSessionQuestion> {

    /**
     * 物理删除指定场次的全部题目，避免逻辑删除记录占用唯一索引。
     */
    @Delete("DELETE FROM tcm_live_session_question WHERE session_id = #{sessionId}")
    int hardDeleteBySessionId(@Param("sessionId") Long sessionId);
}