package com.zhongzheng.modules.course.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.zhongzheng.modules.course.domain.CourseChapterBusiness;
import com.zhongzheng.modules.course.domain.CourseChapterSection;
import com.zhongzheng.modules.course.vo.CourseChapterSectionVo;

import java.util.List;

/**
 * 章与节关系Mapper接口
 *
 * @author hjl
 * @date 2021-10-12
 */
public interface CourseChapterSectionMapper extends BaseMapper<CourseChapterSection> {
    List<CourseChapterSectionVo> getListById(Long id);
    Long getListTotalTime(Long id);
}
