DrawLotsGroupItemsServiceImpl.java
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package com.zhongzhi.service.impl;
import com.baomidou.mybatisplus.core.conditions.query.QueryWrapper;
import com.baomidou.mybatisplus.core.metadata.IPage;
import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
import com.baomidou.mybatisplus.extension.service.impl.ServiceImpl;
import com.zhongzhi.common.exception.HttpException;
import com.zhongzhi.common.utils.ConstantUtils;
import com.zhongzhi.dao.DrawLotGroupDictMapper;
import com.zhongzhi.dao.DrawLotsGroupItemsMapper;
import com.zhongzhi.dao.ProjectDAO;
import com.zhongzhi.dto.drawlots.AddProjectToSceneDTO;
import com.zhongzhi.dto.drawlots.AllGroupItemsDTO;
import com.zhongzhi.dto.drawlots.CollegeProjectsDTO;
import com.zhongzhi.dto.drawlots.MatchProjectsDTO;
import com.zhongzhi.model.DrawLotGroupDictDO;
import com.zhongzhi.model.DrawLotsGroupItemsDO;
import com.zhongzhi.model.ProjectDO;
import com.zhongzhi.service.DrawLotsGroupItemsService;
import com.zhongzhi.vo.drawlots.*;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import java.util.*;
/**
* <p>
* 服务实现类
* </p>
*
* @author DengMin
* @since 2025-06-19
*/
@Service
public class DrawLotsGroupItemsServiceImpl extends ServiceImpl<DrawLotsGroupItemsMapper, DrawLotsGroupItemsDO> implements DrawLotsGroupItemsService {
@Autowired
private DrawLotGroupDictMapper drawLotGroupDictMapper;
@Autowired
private ProjectDAO projectDAO;
@Override
public IPage<AllGroupItemsVO> allGroupItems(AllGroupItemsDTO allGroupItemsDTO) {
Page page = new Page(allGroupItemsDTO.getPageNum(), allGroupItemsDTO.getPageSize());
return this.baseMapper.allGroupItems(page,allGroupItemsDTO.getSceneId(), allGroupItemsDTO.getProjectName(), allGroupItemsDTO.getCollege());
}
@Override
public String deleteGroupItem(DrawLotsGroupItemsDO drawLotsGroupItemsDO) {
this.baseMapper.deleteById(drawLotsGroupItemsDO.getId());
return ConstantUtils.DELETE_SUCCESS;
}
@Override
public List<MatchProjectsVO> matchProjects(MatchProjectsDTO matchProjectsDTO) {
return this.baseMapper.matchProjects(matchProjectsDTO.getMatchId(), matchProjectsDTO.getProjectSchedule());
}
@Override
public IPage<CollegeProjectsVO> collegeProjects(CollegeProjectsDTO collegeProjectsDTO) {
Page page = new Page(collegeProjectsDTO.getPageNum(), collegeProjectsDTO.getPageSize());
return this.baseMapper.collegeProjects(page, collegeProjectsDTO.getSceneId(), collegeProjectsDTO.getCollege(), collegeProjectsDTO.getProjectSchedule(), collegeProjectsDTO.getProjectProgress());
}
@Override
@Transactional(rollbackFor = Exception.class)
public DrawlotsVO drawlots(DrawLotsGroupItemsDO drawLotsGroupItemsDO) {
DrawlotsVO drawlotsVO = new DrawlotsVO();
//判断是否已经抽过了
DrawLotsGroupItemsDO dlgid = this.baseMapper.selectById(drawLotsGroupItemsDO.getProjectId());
ProjectDO projectDO = projectDAO.selectById(dlgid.getProjectId());
if (null != dlgid.getGroupId()){
throw new HttpException(10037);
}
//开始抽签
Integer integer = this.baseMapper.sceneCollege(drawLotsGroupItemsDO.getSceneId(),projectDO.getCollege());
//找到还剩余的坑位--组别
List<DrawLotGroupDictDO> drawLotGroupDictDOS = this.baseMapper.noFullGroup(drawLotsGroupItemsDO.getSceneId(),projectDO.getCollege(),integer);
if (drawLotGroupDictDOS.size() == 0) {
throw new HttpException(10036);
}
//随机一个组别
DrawLotGroupDictDO drawLotGroupDictDO = drawLotGroupDictDOS.get(new Random().nextInt(drawLotGroupDictDOS.size()));
List<Integer> array = new ArrayList<>();
for (int i = 1 ; i <= drawLotGroupDictDO.getProjectCnt() ; i++){
array.add(i);
}
//这个组别已经随机到的num
List<Integer> exists = this.baseMapper.existNum(drawLotGroupDictDO.getId());
List<Integer> unselectedElements = findUnselectedElements(array, exists);
DrawLotGroupDictDO groupDictDO = drawLotGroupDictMapper.selectById(drawLotGroupDictDO.getId());
drawlotsVO.setGroupName(groupDictDO.getGroupName());
drawlotsVO.setGroupNum(unselectedElements.get(new Random().nextInt(unselectedElements.size())));
DrawLotsGroupItemsDO drawLotsGroupItemsDO1 = this.baseMapper.selectById(drawLotsGroupItemsDO.getProjectId());
drawLotsGroupItemsDO1.setGroupId(drawLotGroupDictDO.getId());
drawLotsGroupItemsDO1.setGroupNum(drawlotsVO.getGroupNum());
this.baseMapper.updateById(drawLotsGroupItemsDO1);
return drawlotsVO;
}
@Override
public List<GroupProjectScreenVO> groupProjectScreen(DrawLotsGroupItemsDO drawLotsGroupItemsDO) {
List<GroupProjectScreenVO> groupProjectScreenVOS = new ArrayList<>();
// 查每个组别
List<DrawLotGroupDictDO> drawLotGroupDictDOS = drawLotGroupDictMapper.selectList(new QueryWrapper<DrawLotGroupDictDO>()
.lambda()
.eq(DrawLotGroupDictDO::getSceneId, drawLotsGroupItemsDO.getSceneId())
.orderByAsc(DrawLotGroupDictDO::getId));
for (DrawLotGroupDictDO dlgd : drawLotGroupDictDOS) {
GroupProjectScreenVO groupProjectScreenVO = new GroupProjectScreenVO();
groupProjectScreenVO.setId(dlgd.getId());
groupProjectScreenVO.setGroupName(dlgd.getGroupName());
//组别下的每个项目
List<GroupProjectInfoVO> groupProjectInfoVOS = this.baseMapper.groupProjectInfo(dlgd.getId());
groupProjectScreenVO.setGroupProjectInfoVOS(groupProjectInfoVOS);
groupProjectScreenVOS.add(groupProjectScreenVO);
}
return groupProjectScreenVOS;
}
@Override
public String addProjectToScene(AddProjectToSceneDTO addProjectToSceneDTO) {
List<Long> ids = addProjectToSceneDTO.getProjectIds();
for (Long id : ids) {
DrawLotsGroupItemsDO drawLotsGroupItemsDO = new DrawLotsGroupItemsDO();
drawLotsGroupItemsDO.setProjectId(id);
drawLotsGroupItemsDO.setSceneId(addProjectToSceneDTO.getSceneId());
this.baseMapper.insert(drawLotsGroupItemsDO);
}
return ConstantUtils.ADD_SUCCESS;
}
public static <T> List<T> findUnselectedElements(List<T> array, List<T> selected) {
// 使用集合来记录已选择的元素，提升查找效率
Set<T> selectedSet = new HashSet<>(selected);
// 存储未被选中的元素
List<T> result = new ArrayList<>();
// 遍历数组，找出未被选中的元素
for (T element : array) {
if (!selectedSet.contains(element)) {
result.add(element);
}
}
return result;
}
}