package cn.iocoder.yudao.module.infra.service.demo;
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import cn.hutool.core.collection.CollUtil;
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import org.springframework.stereotype.Service;
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import jakarta.annotation.Resource;
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import org.springframework.validation.annotation.Validated;
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import org.springframework.transaction.annotation.Transactional;
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import java.util.*;
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import java.util.concurrent.atomic.AtomicInteger;
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import cn.iocoder.yudao.module.infra.controller.admin.demo.vo.*;
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import cn.iocoder.yudao.module.infra.dal.dataobject.demo.InfraStudentDO;
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import cn.iocoder.yudao.framework.common.pojo.PageResult;
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import cn.iocoder.yudao.framework.common.pojo.PageParam;
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import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
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import cn.iocoder.yudao.module.infra.dal.mysql.demo.InfraStudentMapper;
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import static cn.iocoder.yudao.framework.common.exception.util.ServiceExceptionUtil.exception;
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import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.convertList;
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import static cn.iocoder.yudao.framework.common.util.collection.CollectionUtils.diffList;
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import static cn.iocoder.yudao.module.infra.enums.ErrorCodeConstants.*;
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/**
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* 学生 Service 实现类
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*
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* @author 芋道源码
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*/
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@Service
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@Validated
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public class InfraStudentServiceImpl implements InfraStudentService {
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@Resource
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private InfraStudentMapper studentMapper;
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@Override
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public Long createStudent(InfraStudentSaveReqVO createReqVO) {
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// 插入
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InfraStudentDO student = BeanUtils.toBean(createReqVO, InfraStudentDO.class);
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studentMapper.insert(student);
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// 返回
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return student.getId();
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}
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@Override
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@Transactional(rollbackFor = Exception.class) // 添加事务，异常则回滚所有导入
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public InfraStudentImportRespVO importStudentList(List<InfraStudentImportExcelVO> importList) {
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if (CollUtil.isEmpty(importList)) {
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return InfraStudentImportRespVO.builder()
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.successCount(0).failureCount(0).failureRows(new LinkedHashMap<>()).build();
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}
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// 遍历，逐个创建
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InfraStudentImportRespVO respVO = InfraStudentImportRespVO.builder()
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.successCount(0).failureCount(0).failureRows(new LinkedHashMap<>()).build();
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AtomicInteger index = new AtomicInteger(1);
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importList.forEach(importItem -> {
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int currentIndex = index.getAndIncrement();
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try {
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createStudent(BeanUtils.toBean(importItem, InfraStudentSaveReqVO.class));
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respVO.setSuccessCount(respVO.getSuccessCount() + 1);
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} catch (Exception ex) {
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respVO.getFailureRows().put(currentIndex, ex.getMessage());
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}
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});
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respVO.setFailureCount(respVO.getFailureRows().size());
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return respVO;
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}
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@Override
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public void updateStudent(InfraStudentSaveReqVO updateReqVO) {
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// 校验存在
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validateStudentExists(updateReqVO.getId());
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// 更新
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InfraStudentDO updateObj = BeanUtils.toBean(updateReqVO, InfraStudentDO.class);
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studentMapper.updateById(updateObj);
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}
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@Override
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public void deleteStudent(Long id) {
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// 校验存在
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validateStudentExists(id);
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// 删除
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studentMapper.deleteById(id);
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}
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@Override
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public void deleteStudentListByIds(List<Long> ids) {
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// 删除
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studentMapper.deleteByIds(ids);
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}
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private void validateStudentExists(Long id) {
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if (studentMapper.selectById(id) == null) {
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throw exception(STUDENT_NOT_EXISTS);
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}
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}
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@Override
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public InfraStudentDO getStudent(Long id) {
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return studentMapper.selectById(id);
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}
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@Override
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public PageResult<InfraStudentDO> getStudentPage(InfraStudentPageReqVO pageReqVO) {
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return studentMapper.selectPage(pageReqVO);
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}
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}
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