package com.gkhy.exam.system.mapper;

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

import java.util.List;

/**
 * <p>
 * 学员与考试题目关系表 Mapper 接口
 * </p>
 *
 * @author kzy
 * @since 2024-06-06 13:53:17
 */
@Mapper
public interface ExPaperStudentMapper extends BaseMapper<ExPaperStudent> {
    /**
     * 根据id获取考卷下的学员
     * @param paperStudentId
     * @return
     */
    ExPaperStudent selectPaperStudentById(Long paperStudentId);

    /**
     * 分页查询考卷下分配的学员
     * @param paperStudent
     * @return
     */
    List<ExPaperStudent> selectPaperStudentList(ExPaperStudent paperStudent);

    /**
     * 批量插入
     * @param paperStudents
     * @return
     */
    int batchInsert(List<ExPaperStudent> paperStudents);

    /**
     * 统计考卷下学员数量
     * @param paperId
     * @return
     */
    int countByPaperId(Long paperId);

    /**
     * 查询数量
     * @param paperId
     * @param studentId
     * @return
     */
    Integer selectCountByPaperStudentId(@Param("paperId") Long paperId, @Param("studentId")Long studentId);

    /**
     * 根据试卷id和学员id查询试卷信息
     * @param paperStudent
     * @return
     */
    ExPaperStudent selectByPaperStudentId(ExPaperStudent paperStudent);
}