smart-reader/src/main/java/com/smart/reader/service/impl/StudentInfoServiceImpl.java

package com.smart.reader.service.impl;

import cn.hutool.core.bean.BeanUtil;
import cn.hutool.core.util.ObjectUtil;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.github.pagehelper.PageHelper;
import com.smart.reader.common.Page;
import com.smart.reader.dao.StudentInfoMapper;
import com.smart.reader.exception.CustomException;
import com.smart.reader.model.bo.StudentInfoAddBo;
import com.smart.reader.model.bo.StudentInfoUpdateBo;
import com.smart.reader.model.po.StudentInfo;
import com.smart.reader.model.vo.StudentInfoVo;
import com.smart.reader.service.StudentInfoService;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.List;

@Service
public class StudentInfoServiceImpl extends ServiceImpl<StudentInfoMapper, StudentInfo> implements StudentInfoService {

    @Override
    public Page<StudentInfoVo> queryInfo(int pageNum, int pageSize) throws CustomException {
        try {
            PageHelper.startPage(pageNum, pageSize);
            List<StudentInfoVo> tableInfoVos = this.baseMapper.queryInfo();
            return new Page<>(pageNum, pageSize, tableInfoVos);
        } catch (Exception e) {
            throw new CustomException("学生信息查询失败");
        }
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean add(StudentInfoAddBo studentInfo) throws CustomException {
        StudentInfo info = BeanUtil.copyProperties(studentInfo, StudentInfo.class);
        boolean save = this.save(info);
        if (!save) {
            throw new CustomException("学生数据添加失败");
        }
        return Boolean.TRUE;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean delete(Long id) throws CustomException {
        boolean remove = this.removeById(id);
        if (!remove) {
            throw new CustomException("学生数据删除失败");
        }
        return Boolean.TRUE;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean edit(StudentInfoUpdateBo studentInfo) throws CustomException {
        StudentInfo info = this.getById(studentInfo.getId());
        if (ObjectUtil.isEmpty(info)) {
            throw new CustomException("学生数据不存在");
        }
        BeanUtil.copyProperties(studentInfo, info);
        boolean update = this.updateById(info);
        if (!update) {
            throw new CustomException("学生数据修改失败");
        }
        return Boolean.TRUE;
    }

    @Override
    public StudentInfoVo detail(Long id) throws CustomException {
        StudentInfoVo vo = this.baseMapper.detail(id);
        if (ObjectUtil.isEmpty(vo)) {
            throw new CustomException("学生详情获取失败");
        }
        return vo;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean batchDelete(List<Long> ids) throws CustomException {
        boolean result = this.removeByIds(ids);
        if (!result) {
            throw new CustomException("学生批量删除失败");
        }
        return Boolean.TRUE;
    }
}