BatchExamServiceImpl.java
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package com.meishu.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.meishu.dto.exam.ExamPaperDTO;
import com.meishu.mapper.BatchExamsStudentsMapper;
import com.meishu.mapper.ExerciseDoneHistoryMapper;
import com.meishu.mapper.PaperDictMapper;
import com.meishu.model.*;
import com.meishu.mapper.BatchExamMapper;
import com.meishu.service.BatchExamService;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.meishu.util.ConstantUtils;
import com.meishu.vo.exam.ExamPaperVO;
import com.meishu.vo.exam.ExamsVO;
import com.meishu.vo.exercise.ExercisesWithAnswerVO;
import com.meishu.vo.paper.ExercisesVO;
import com.meishu.vo.student.StudentVO;
import net.sf.json.JSONArray;
import org.springframework.beans.BeanUtils;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.ArrayList;
import java.util.Collections;
import java.util.HashMap;
import java.util.List;
/**
* <p>
* 服务实现类
* </p>
*
* @author Tuyp
* @since 2023-07-12
*/
@Service
public class BatchExamServiceImpl extends ServiceImpl<BatchExamMapper, BatchExamDO> implements BatchExamService {
@Autowired
private BatchExamsStudentsMapper batchExamsStudentsMapper;
@Autowired
private PaperDictMapper paperDictMapper;
@Autowired
private ExerciseDoneHistoryMapper exerciseDoneHistoryMapper;
public List<ExamsVO> exams(BatchExamDO batchExamDO) {
List<ExamsVO> exams = this.baseMapper.exams(batchExamDO.getBatchId());
for (ExamsVO examsVO : exams) {
//考生名单
List<StudentVO> studentVOS = batchExamsStudentsMapper.batchExamStudents(examsVO.getId());
examsVO.setStudentVOS(studentVOS);
}
return exams;
}
@Transactional(rollbackFor = Exception.class)
public String addExam(BatchExamDO batchExamDO) {
this.baseMapper.insert(batchExamDO);
return ConstantUtils.ADD_SUCCESS;
}
@Transactional(rollbackFor = Exception.class)
public String deleteExam(BatchExamDO batchExamDO) {
this.baseMapper.deleteById(batchExamDO.getId());
batchExamsStudentsMapper.delete(new QueryWrapper<BatchExamStudentsDO>()
.lambda()
.eq(BatchExamStudentsDO::getBatchExamId, batchExamDO.getId()));
return ConstantUtils.DELETE_SUCCESS;
}
public String updateExam(BatchExamDO batchExamDO) {
this.baseMapper.updateById(batchExamDO);
return ConstantUtils.SET_SUCCESS;
}
public ExamPaperVO examPaper(ExamPaperDTO examPaperDTO) {
ExamPaperVO examPaperVO = new ExamPaperVO();
BatchExamDO batchExamDO = this.baseMapper.selectById(examPaperDTO.getExamId());
examPaperVO.setStartDate(batchExamDO.getStartDate());
examPaperVO.setEndDate(batchExamDO.getEndDate());
examPaperVO.setExamName(batchExamDO.getExamName());
//查看是否已经查看过卷子，没有的话重新生成一次，有的话就用以前的
int count = exerciseDoneHistoryMapper.selectCount(new QueryWrapper<ExerciseDoneHistoryDO>()
.lambda()
.eq(ExerciseDoneHistoryDO::getStudentId, examPaperDTO.getUserId())
.eq(ExerciseDoneHistoryDO::getBatchExamId, examPaperDTO.getExamId()));
//试卷 不返回答案
List<ExercisesVO> exercisesVOS = new ArrayList<>();
if (count == 0) {
List<ExercisesWithAnswerVO> exercisesWithAnswerVOS = new ArrayList<>();
//查卷子题型
List<String> types = paperDictMapper.exerciseTypes(examPaperDTO.getPaperId());
//每个 题型的题目随机 然后组卷
for (String type : types) {
List<ExercisesWithAnswerVO> exerciseTmp = paperDictMapper.exercisesWithAnswer(examPaperDTO.getPaperId(), type);
Collections.shuffle(exerciseTmp);
exercisesWithAnswerVOS.addAll(exerciseTmp);
}
//返回
int i = 1;
for (ExercisesWithAnswerVO exercise : exercisesWithAnswerVOS) {
ExercisesVO exercisesVO = new ExercisesVO();
BeanUtils.copyProperties(exercise, exercisesVO);
ExerciseDoneHistoryDO exerciseDoneHistoryDO = new ExerciseDoneHistoryDO();
exerciseDoneHistoryDO.setStudentId(examPaperDTO.getUserId());
exerciseDoneHistoryDO.setBatchExamId(examPaperDTO.getExamId());
exerciseDoneHistoryDO.setPaperId(examPaperDTO.getPaperId());
exerciseDoneHistoryDO.setExerciseId(exercise.getId());
exerciseDoneHistoryDO.setOrderNo(i);
exerciseDoneHistoryMapper.insert(exerciseDoneHistoryDO);
if ("填空题".equals(exercise.getExerciseType()) || "主观题".equals(exercise.getExerciseType())) {
JSONArray jsonArray = JSONArray.fromObject(exercise.getRightAnswer());
exercisesVO.setCnt(jsonArray.size());
}
exercisesVO.setId(exerciseDoneHistoryDO.getId());
exercisesVOS.add(exercisesVO);
i++;
}
} else {
List<ExercisesWithAnswerVO> exercisesWithAnswerVOS = paperDictMapper.examExercises(examPaperDTO.getExamId(), examPaperDTO.getUserId(), examPaperDTO.getPaperId());
for (ExercisesWithAnswerVO exercise : exercisesWithAnswerVOS) {
ExercisesVO exercisesVO = new ExercisesVO();
BeanUtils.copyProperties(exercise, exercisesVO);
if ("填空题".equals(exercise.getExerciseType()) || "主观题".equals(exercise.getExerciseType())) {
JSONArray jsonArray = JSONArray.fromObject(exercise.getRightAnswer());
exercisesVO.setCnt(jsonArray.size());
}
exercisesVOS.add(exercisesVO);
}
}
examPaperVO.setExercises(exercisesVOS);
return examPaperVO;
}
}