package com.gkhy.exam.system.mapper;

import com.baomidou.mybatisplus.core.mapper.BaseMapper;
import com.gkhy.exam.system.domain.ExCoursePhase;
import org.apache.ibatis.annotations.Mapper;

import java.util.List;

/**
 * <p>
 * 课时批次表 Mapper 接口
 * </p>
 *
 * @author kzy
 * @since 2024-06-05 15:07:36
 */
@Mapper
public interface ExCoursePhaseMapper extends BaseMapper<ExCoursePhase> {
    /**
     * 分页获取批次列表
     * @param coursePhase
     * @return
     */
    List<ExCoursePhase> selectCoursePhaseList(ExCoursePhase coursePhase);

    /**
     * 根据id获取批次信息
     * @param phaseId
     * @return
     */
    ExCoursePhase selectCoursePhaseById(Long phaseId);

    /**
     * 校验批次名称是否唯一
     * @param name
     * @return
     */
    ExCoursePhase checkNameUnique(String name);

    /**
     * 根据课程id获取批次数量
     * @param courseId
     * @return
     */
    Integer selectCountByCourseId(Long courseId);

    /**
     * 根据id删除批次
     * @param phaseId
     * @return
     */
    int deleteByPhaseId(Long phaseId);
}