api/src/main/java/com/xjrsoft/module/base/service/impl/BaseCourseSubjectServiceImpl.java

package com.xjrsoft.module.base.service.impl;

import cn.dev33.satoken.stp.StpUtil;
import com.baomidou.mybatisplus.core.toolkit.Wrappers;
import com.github.yulichang.base.MPJBaseServiceImpl;
import com.xjrsoft.module.base.entity.BaseCourseSubject;
import com.xjrsoft.module.base.entity.CourseSubjectDetail;
import com.xjrsoft.module.base.mapper.BaseCourseSubjectMapper;
import com.xjrsoft.module.base.mapper.CourseSubjectDetailMapper;
import com.xjrsoft.module.base.service.IBaseCourseSubjectService;
import lombok.AllArgsConstructor;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;

import java.util.Date;
import java.util.List;
import java.util.Objects;
import java.util.stream.Collectors;

/**
 * @title: 课程学科
 * @Author dzx
 * @Date: 2025-02-28
 * @Version 1.0
 */
@Service
@AllArgsConstructor
public class BaseCourseSubjectServiceImpl extends MPJBaseServiceImpl<BaseCourseSubjectMapper, BaseCourseSubject> implements IBaseCourseSubjectService {
    private final BaseCourseSubjectMapper baseCourseSubjectBaseCourseSubjectMapper;

    private final CourseSubjectDetailMapper baseCourseSubjectCourseSubjectDetailMapper;


    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean add(BaseCourseSubject baseCourseSubject) {
        baseCourseSubjectBaseCourseSubjectMapper.insert(baseCourseSubject);
        for (CourseSubjectDetail courseSubjectDetail : baseCourseSubject.getCourseSubjectDetailList()) {
            courseSubjectDetail.setBaseCourseSubjectId(baseCourseSubject.getId());
            courseSubjectDetail.setCreateDate(new Date());
            courseSubjectDetail.setCreateUserId(StpUtil.getLoginIdAsLong());
            baseCourseSubjectCourseSubjectDetailMapper.insert(courseSubjectDetail);
        }

        return true;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean update(BaseCourseSubject baseCourseSubject) {
        baseCourseSubjectBaseCourseSubjectMapper.updateById(baseCourseSubject);
        //********************************* CourseSubjectDetail  增删改  开始 *******************************************/
        {
            // 查出所有子级的id
            List<CourseSubjectDetail> courseSubjectDetailList = baseCourseSubjectCourseSubjectDetailMapper.selectList(Wrappers.lambdaQuery(CourseSubjectDetail.class).eq(CourseSubjectDetail::getBaseCourseSubjectId, baseCourseSubject.getId()).select(CourseSubjectDetail::getId));
            List<Long> courseSubjectDetailIds = courseSubjectDetailList.stream().map(CourseSubjectDetail::getId).collect(Collectors.toList());
            //原有子表单 没有被删除的主键
            List<Long> courseSubjectDetailOldIds = baseCourseSubject.getCourseSubjectDetailList().stream().map(CourseSubjectDetail::getId).filter(Objects::nonNull).collect(Collectors.toList());
            //找到需要删除的id
            List<Long> courseSubjectDetailRemoveIds = courseSubjectDetailIds.stream().filter(item -> !courseSubjectDetailOldIds.contains(item)).collect(Collectors.toList());

            for (CourseSubjectDetail courseSubjectDetail : baseCourseSubject.getCourseSubjectDetailList()) {
                //如果不等于空则修改
                if (courseSubjectDetail.getId() != null) {
                    courseSubjectDetail.setCreateDate(new Date());
                    courseSubjectDetail.setCreateUserId(StpUtil.getLoginIdAsLong());
                    baseCourseSubjectCourseSubjectDetailMapper.updateById(courseSubjectDetail);
                }
                //如果等于空 则新增
                else {
                    courseSubjectDetail.setBaseCourseSubjectId(baseCourseSubject.getId());
                    courseSubjectDetail.setCreateDate(new Date());
                    courseSubjectDetail.setCreateUserId(StpUtil.getLoginIdAsLong());
                    baseCourseSubjectCourseSubjectDetailMapper.insert(courseSubjectDetail);
                }
            }
            //已经不存在的id 删除
            if (courseSubjectDetailRemoveIds.size() > 0) {
                baseCourseSubjectCourseSubjectDetailMapper.deleteBatchIds(courseSubjectDetailRemoveIds);
            }
        }
        //********************************* CourseSubjectDetail  增删改  结束 *******************************************/

        return true;
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public Boolean delete(List<Long> ids) {
        baseCourseSubjectBaseCourseSubjectMapper.deleteBatchIds(ids);
        baseCourseSubjectCourseSubjectDetailMapper.delete(Wrappers.lambdaQuery(CourseSubjectDetail.class).in(CourseSubjectDetail::getBaseCourseSubjectId, ids));

        return true;
    }
}