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426 lines
18 KiB
426 lines
18 KiB
package cn.teammodel.service.impl;
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import cn.hutool.core.lang.UUID;
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import cn.teammodel.common.ErrorCode;
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import cn.teammodel.common.PK;
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import cn.teammodel.config.exception.ServiceException;
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import cn.teammodel.dao.*;
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import cn.teammodel.model.dto.Appraise.*;
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import cn.teammodel.model.entity.User;
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import cn.teammodel.model.entity.appraise.Appraise;
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import cn.teammodel.model.entity.appraise.AppraiseRecord;
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import cn.teammodel.model.entity.appraise.AppraiseRecordItem;
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import cn.teammodel.model.entity.appraise.AppraiseTreeNode;
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import cn.teammodel.model.entity.school.ClassInfo;
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import cn.teammodel.model.entity.school.School;
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import cn.teammodel.model.entity.school.Student;
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import cn.teammodel.security.utils.SecurityUtil;
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import cn.teammodel.service.EvaluationService;
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import cn.teammodel.utils.RepositoryUtil;
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import cn.teammodel.utils.SchoolDateUtil;
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import com.azure.cosmos.models.CosmosPatchOperations;
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import org.apache.commons.lang3.ObjectUtils;
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import org.apache.commons.lang3.StringUtils;
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import org.springframework.beans.BeanUtils;
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import org.springframework.stereotype.Service;
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import javax.annotation.Resource;
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import java.time.LocalDate;
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import java.time.LocalDateTime;
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import java.util.*;
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import java.util.stream.Collectors;
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/**
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* @author winter
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* @create 2023-11-20 17:47
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*/
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@Service
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public class EvaluationServiceImpl implements EvaluationService {
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/**
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* 评价记录对象的类型
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*/
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private final static String TARGET_STUDENT = "student";
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private final static String TARGET_CLASS = "class";
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@Resource
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private ClassRepository classRepository;
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@Resource
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private StudentRepository studentRepository;
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@Resource
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private SchoolRepository schoolRepository;
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@Resource
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private AppraiseRecordRepository appraiseRecordRepository;
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@Resource
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private AppraiseRepository appraiseRepository;
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/**
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* 通用的获取用户学校和学段对应的 appraise 的方法: 判断参数,判断数据是否为空 <br/>
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* 从 token 中获取 schoolId
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*/
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private Appraise findAppraise(String periodId) {
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// 默认学区为 default
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periodId = StringUtils.isEmpty(periodId) ? "default" : periodId;
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User loginUser = SecurityUtil.getLoginUser();
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String schoolId = loginUser.getSchoolId();
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// 拿到要新增节点的原始数据
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Appraise appraise = appraiseRepository.findAppraiseBySchoolIdAndPeriodIdAndCode(schoolId, periodId, PK.PK_APPRAISE);
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if (appraise == null) {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "学校评价数据不存在");
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}
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return appraise;
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}
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@Override
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public Appraise getTree(GetEvaluateTreeDto getEvaluateTreeDto) {
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String periodId = getEvaluateTreeDto.getPeriodId();
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// 默认学区为 default
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periodId = StringUtils.isEmpty(periodId) ? "default" : periodId;
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User loginUser = SecurityUtil.getLoginUser();
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String schoolId = loginUser.getSchoolId();
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Appraise appraise = appraiseRepository.findAppraiseBySchoolIdAndPeriodIdAndCode(schoolId, periodId, PK.PK_APPRAISE);
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// todo: 是否要对学段进行鉴权
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if (appraise != null) {
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return this.buildTree(appraise);
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}
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// 如果传参 period 所在没有 tree 的话,则复制一份模板 tree 给他 (处理节点 id)
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appraise = RepositoryUtil.findOne(appraiseRepository.findTemplateTree(), "获取模板评价树失败");
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if (appraise == null) {
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throw new ServiceException();
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}
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refreshAppraiseTree(appraise.getNodes());
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appraise.setPeriodId(periodId);
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appraise.setSchoolId(schoolId);
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appraise.setId(null);
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appraise = appraiseRepository.save(appraise);
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return this.buildTree(appraise);
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}
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/**
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* 将树的节点的 id 进行替换(天才)
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*/
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private void refreshAppraiseTree(List<AppraiseTreeNode> nodes) {
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List<AppraiseTreeNode> children = nodes.stream().filter(item -> item.getPid() != null).collect(Collectors.toList());
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// 将非 root 的 nodes 通过 pid 收集成 list, 再遍历 nodes, 将其每一个 id 对应 map 中的 list 的 pid修改成新的 id 即可
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Map<String, List<AppraiseTreeNode>> pidNodeMap = children.stream().collect(Collectors.groupingBy(AppraiseTreeNode::getPid));
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nodes.forEach(item -> {
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String newId = UUID.randomUUID().toString();
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String oldId = item.getId();
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List<AppraiseTreeNode> appraiseTreeNodes = pidNodeMap.get(oldId);
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if (appraiseTreeNodes != null) {
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appraiseTreeNodes.forEach(node -> node.setPid(newId));
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}
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// 处理每个节点属性
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item.setId(newId);
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item.setCreator("template");
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});
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}
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@Override
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public Appraise buildTree(Appraise appraise) {
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if (appraise == null) {
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return null;
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}
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List<AppraiseTreeNode> nodes = appraise.getNodes();
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List<AppraiseTreeNode> parents = new ArrayList<>();
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// pid 为 null 或者 "" 则为 parents
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for (AppraiseTreeNode node : nodes) {
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if (StringUtils.isBlank(node.getPid())) {
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parents.add(node);
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}
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}
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// 迭代构建孩子节点
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for (AppraiseTreeNode parent : parents) {
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buildChildren(parent, nodes);
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}
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appraise.setNodes(parents);
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return appraise;
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}
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@Override
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public void flattenTree(List<AppraiseTreeNode> trees, List<AppraiseTreeNode> nodes) {
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// 递归结束条件
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if (ObjectUtils.isEmpty(trees)) return;
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// 这里的每个 tree 都是组装好的树,区别于单个节点
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for (AppraiseTreeNode tree : trees) {
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// 递归
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flattenTree(tree.getChildren(), nodes);
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// 回溯时删除 children,添加进列表
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tree.setChildren(null);
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nodes.add(tree);
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}
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}
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@Override
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public Appraise insertNode(InsertNodeDto insertNodeDto) {
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Appraise appraise = findAppraise(insertNodeDto.getPeriodId());
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User loginUser = SecurityUtil.getLoginUser();
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List<AppraiseTreeNode> originNodes = appraise.getNodes();
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// 拷贝数据到新节点
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AppraiseTreeNode newNode = new AppraiseTreeNode();
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BeanUtils.copyProperties(insertNodeDto, newNode);
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String newNodePid = newNode.getPid();
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// 根节点直接添加
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if (StringUtils.isNotEmpty(newNodePid)) {
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boolean invalid = originNodes.stream().noneMatch(item -> newNodePid.equals(item.getId()));
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if (invalid) {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "父节点不存在");
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}
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}
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// todo: 可不可以添加默认值 order ?
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newNode.setId(UUID.randomUUID().toString());
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newNode.setCreatorId(loginUser.getId());
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newNode.setCreator(loginUser.getName());
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newNode.setCreateTime(LocalDateTime.now());
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originNodes.add(newNode);
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return buildTree(appraiseRepository.save(appraise));
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}
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@Override
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public Appraise updateNode(UpdateNodeDto updateNodeDto) {
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String updateNodeId = updateNodeDto.getId();
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Appraise appraise = findAppraise(updateNodeDto.getPeriodId());
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List<AppraiseTreeNode> originNodes = appraise.getNodes();
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// 每个节点都有 id, 直接校验是否合法
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AppraiseTreeNode updateNode = originNodes.stream()
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.filter(item -> updateNodeId.equals(item.getId()))
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.findFirst()
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.orElseThrow(() -> new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "更新节点不存在"));
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// 更新字段,考虑直接 copy properties
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updateNode.setName(updateNodeDto.getName());
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updateNode.setLogo(updateNodeDto.getLogo());
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updateNode.setOrder(updateNodeDto.getOrder());
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updateNode.setPraise(updateNodeDto.isPraise());
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// todo: 为新节点赋值必须参数 (id, creator), 可不可以添加默认值 order ?
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return buildTree(appraiseRepository.save(appraise));
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}
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@Override
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public Appraise deleteNode(DeleteNodeDto deleteNodeDto) {
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// 删除指定节点,可能是(一级,二级,三级),设计一个通用的
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Appraise appraise = findAppraise(deleteNodeDto.getPeriodId());
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List<AppraiseTreeNode> nodes = appraise.getNodes();
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List<AppraiseTreeNode> nodesToDelete = new ArrayList<>();
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// 迭代器安全删除
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for (AppraiseTreeNode node : nodes) {
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if (node.getId().equals(deleteNodeDto.getId())) {
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// 删除当前节点
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nodesToDelete.add(node);
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// 递归删除其孩子节点
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this.collectNodesToDelete(node.getId(), nodes, nodesToDelete);
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}
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}
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if (ObjectUtils.isEmpty(nodesToDelete)) {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "删除节点不存在");
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}
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nodes.removeAll(nodesToDelete);
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return buildTree(appraiseRepository.save(appraise));
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}
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@Override
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public void vote(AppraiseVoteDto appraiseVoteDto) {
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String targetId = appraiseVoteDto.getTargetId();
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boolean spread = appraiseVoteDto.isSpread();
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String targetType = appraiseVoteDto.getTargetType();
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String appraiseId = appraiseVoteDto.getAppraiseId();
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User loginUser = SecurityUtil.getLoginUser();
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String schoolId = loginUser.getSchoolId();
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String classId;
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String periodId;
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String name;
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String avatar = null;
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// 分别对班级和学生的关键信息取值
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if (targetType.equals(TARGET_STUDENT)) {
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Student student = studentRepository.findStudentByIdAndCode(targetId, String.format(PK.STUDENT, schoolId));
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if (student == null) {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "该学生不存在");
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}
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classId = student.getClassId();
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periodId = student.getPeriodId();
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name = student.getName();
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avatar = student.getPicture();
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} else if (targetType.equals(TARGET_CLASS)){
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ClassInfo classInfo = classRepository.findClassByIdAndCode(targetId, String.format(PK.CLASS, schoolId));
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if (classInfo == null) {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "班级不存在");
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}
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classId = targetId;
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periodId = classInfo.getPeriodId();
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name = classInfo.getName();
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} else {
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throw new ServiceException(ErrorCode.PARAMS_ERROR.getCode(), "不受支持的评价对象");
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}
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// 获取评价项节点
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List<AppraiseTreeNode> nodes = appraiseRepository.findNodeById(PK.PK_APPRAISE, appraiseId);
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AppraiseTreeNode appraiseTreeNode = RepositoryUtil.findOne(nodes, "获取评价项失败");
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// 通过 periodId 获取 semesters
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List<School.Period> periodById = schoolRepository.findPeriodById(schoolId, periodId);
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School.Period period = RepositoryUtil.findOne(periodById, "获取学段失败");
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List<School.Semester> semesters = period.getSemesters();
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// 获取当前学年学期组合 ID
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String academicYearId = SchoolDateUtil.generateAcademicId(semesters, LocalDate.now());
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// 查询是否存在记录
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AppraiseRecord record = appraiseRecordRepository.findAppraiseRecordByTargetIdAndClassIdAndAcademicYearIdAndCode(
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targetId,
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classId,
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academicYearId,
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String.format(PK.PK_APPRAISE_RECORD,schoolId)
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);
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// 初始化新的评价节点
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AppraiseRecordItem item = new AppraiseRecordItem();
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item.setId(UUID.randomUUID().toString());
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item.setAppraiseNode(appraiseTreeNode);
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item.setCreator(loginUser.getName());
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item.setCreatorId(loginUser.getId());
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item.setCreateTime(LocalDateTime.now());
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// 不存在或者学生的班级不一样则创建一条新的,存在则处理一下分值后再向其 nodes 中插入一条 item
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if (record == null || !classId.equals(record.getClassId())) {
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List<AppraiseRecordItem> items = Collections.singletonList(item);
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record = new AppraiseRecord();
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record.setTargetId(targetId);
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record.setTargetType(targetType);
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record.setClassId(classId);
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record.setName(name);
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record.setAvatar(avatar);
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record.setAcademicYearId(academicYearId);
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record.setPraiseCount(appraiseTreeNode.isPraise() ? 1 : -1);
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record.setScore(ObjectUtils.isEmpty(appraiseTreeNode.getScore()) ? 0 : appraiseTreeNode.getScore());
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record.setNodes(items);
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record.setCode(String.format(PK.PK_APPRAISE_RECORD, schoolId));
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appraiseRecordRepository.save(record);
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} else {
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// 处理学校与学生的差异
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if (targetType.equals(TARGET_CLASS)){
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item.setSpread(spread);
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}
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CosmosPatchOperations operations = CosmosPatchOperations.create();
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operations.add("/nodes/0", item);
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// 表扬
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long praise = appraiseTreeNode.isPraise() ? 1 : -1;
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operations.increment("/praiseCount", praise);
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// 加分
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int scoreToPlus = ObjectUtils.isEmpty(appraiseTreeNode.getScore()) ? 0 : appraiseTreeNode.getScore();
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operations.increment("/score", scoreToPlus);
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// patch doc
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appraiseRecordRepository.save(record.getId(), PK.buildOf(PK.PK_APPRAISE_RECORD, schoolId), AppraiseRecord.class, operations);
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}
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}
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@Override
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public List<AppraiseRecordItem> findVoteRecord(FindVoteRecordDto findVoteRecordDto) {
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String periodId = findVoteRecordDto.getPeriodId();
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String targetId = StringUtils.isBlank(findVoteRecordDto.getTargetId()) ? null : findVoteRecordDto.getTargetId();
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String targetType = StringUtils.isBlank(findVoteRecordDto.getTargetType()) ? null : findVoteRecordDto.getTargetType();
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String classId = StringUtils.isBlank(findVoteRecordDto.getClassId()) ? null : findVoteRecordDto.getClassId();
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User loginUser = SecurityUtil.getLoginUser();
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String teacherId = loginUser.getId();
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String schoolId = loginUser.getSchoolId();
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List<School.Semester> semesters = schoolRepository.findSemestersById(schoolId, periodId);
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String academicYearId = SchoolDateUtil.generateAcademicId(semesters, LocalDate.now());
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List<AppraiseRecordItem> appraiseRecordItems = appraiseRecordRepository.searchNodesByCondition(
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targetId,
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targetType,
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classId,
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teacherId,
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academicYearId,
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String.format(PK.PK_APPRAISE_RECORD, schoolId)
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);
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return appraiseRecordItems;
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}
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@Override
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public void recallVote(RecallVoteDto recallVoteDto) {
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String recordId = recallVoteDto.getRecordId();
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String nodeId = recallVoteDto.getNodeId();
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User loginUser = SecurityUtil.getLoginUser();
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String schoolId = loginUser.getSchoolId();
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String userId = loginUser.getId();
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Optional<AppraiseRecord> optional = appraiseRecordRepository.findById(recordId, PK.buildOf(PK.PK_APPRAISE_RECORD, schoolId));
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AppraiseRecord appraiseRecord = optional.orElseThrow(() -> new ServiceException("该记录不存在"));
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AppraiseRecordItem record = appraiseRecord.getNodes()
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.stream()
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.filter(item -> nodeId.equals(item.getId()))
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.findFirst().orElseThrow(() -> new ServiceException("该记录节点不存在"));
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// 鉴权(不是创建老师不能撤回)
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if (!userId.equals(record.getCreatorId())) {
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throw new ServiceException(ErrorCode.NO_AUTH_ERROR.getCode(), "您不是创建老师，不能撤回");
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}
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// 删除评价项并且恢复评分
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appraiseRecord.getNodes().removeIf(item -> nodeId.equals(item.getId()));
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boolean praise = record.getAppraiseNode().isPraise();
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Integer newPraiseCount = appraiseRecord.getPraiseCount() + (praise ? -1 : 1);
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appraiseRecord.setPraiseCount(newPraiseCount);
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int score = record.getAppraiseNode().getScore() == null ? 0 : record.getAppraiseNode().getScore();
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Integer newScore = appraiseRecord.getScore() - score;
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appraiseRecord.setScore(newScore);
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// 保存
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appraiseRecordRepository.save(appraiseRecord);
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}
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/**
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* 递归收集 id 的节点及 id 节点的孩子节点 (迭代器删除居然也报错)
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*/
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private void collectNodesToDelete(String id, List<AppraiseTreeNode> nodes, List<AppraiseTreeNode> nodesToDelete) {
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for (AppraiseTreeNode node : nodes) {
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if (id.equals(node.getPid())) {
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// 收集
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nodesToDelete.add(node);
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// 递归收集
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collectNodesToDelete(node.getId(), nodes, nodesToDelete);
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}
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}
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}
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/**
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* 递归的构建父亲节点的孩子,以及孩子的孩子 (理论支持无极树,但应该考虑是否增加递归深度)
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*/
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private void buildChildren(AppraiseTreeNode parent, List<AppraiseTreeNode> nodes) {
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List<AppraiseTreeNode> children = getChildren(parent, nodes);
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if (children.size() == 0) return;
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parent.setChildren(children);
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for (AppraiseTreeNode child : children) {
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// 如果子节点还有孩子的话,就继续递归构建
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if (getChildren(child, nodes).size() > 0) {
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buildChildren(child, nodes);
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}
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}
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}
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/**
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* 获取节点的孩子节点列表
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*/
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private List<AppraiseTreeNode> getChildren(AppraiseTreeNode parent, List<AppraiseTreeNode> nodes) {
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List<AppraiseTreeNode> children = new ArrayList<>();
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for (AppraiseTreeNode node : nodes) {
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if (StringUtils.isNotBlank(node.getPid()) && node.getPid().equals(parent.getId())) {
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children.add(node);
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}
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}
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return children;
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}
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}
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