package cn.iocoder.yudao.module.erp.service.purchase;
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import cn.hutool.core.collection.CollUtil;
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import cn.iocoder.yudao.framework.common.pojo.PageResult;
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import cn.iocoder.yudao.framework.common.util.object.BeanUtils;
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import cn.iocoder.yudao.module.bpm.api.task.BpmProcessInstanceApi;
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import cn.iocoder.yudao.module.bpm.api.task.dto.BpmProcessInstanceCreateReqDTO;
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import cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmProcessDefinitionInfoDO;
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import cn.iocoder.yudao.module.bpm.enums.task.BpmTaskStatusEnum;
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import cn.iocoder.yudao.module.bpm.service.definition.BpmCategoryService;
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import cn.iocoder.yudao.module.bpm.service.definition.BpmProcessDefinitionService;
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import cn.iocoder.yudao.module.erp.controller.admin.purchase.vo.plan.ErpPurchasePlanPageReqVO;
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import cn.iocoder.yudao.module.erp.controller.admin.purchase.vo.plan.ErpPurchasePlanSaveReqVO;
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import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchasePlanDO;
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import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchasePlanItemDO;
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import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchaseRequestDO;
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import cn.iocoder.yudao.module.erp.dal.dataobject.purchase.ErpPurchaseRequestItemDO;
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import cn.iocoder.yudao.module.erp.dal.mysql.purchase.ErpPurchasePlanItemMapper;
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import cn.iocoder.yudao.module.erp.dal.mysql.purchase.ErpPurchasePlanMapper;
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import cn.iocoder.yudao.module.erp.dal.mysql.purchase.ErpPurchaseRequestItemMapper;
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import cn.iocoder.yudao.module.erp.dal.mysql.purchase.ErpPurchaseRequestMapper;
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import cn.iocoder.yudao.module.erp.dal.redis.no.ErpNoRedisDAO;
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import cn.iocoder.yudao.module.erp.enums.ErpPurchasePlanStatusEnum;
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import cn.iocoder.yudao.module.erp.enums.ErpPurchaseRequestStatusEnum;
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import cn.iocoder.yudao.module.mes.api.item.MesMdItemApi;
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import cn.iocoder.yudao.module.mes.api.item.dto.MesMdItemSafetyStockRespDTO;
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import cn.iocoder.yudao.module.mes.api.wms.MesWmStockApi;
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import cn.iocoder.yudao.module.system.api.user.AdminUserApi;
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import cn.iocoder.yudao.module.system.api.user.dto.AdminUserRespDTO;
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import jakarta.annotation.Resource;
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import lombok.extern.slf4j.Slf4j;
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import org.flowable.engine.repository.ProcessDefinition;
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import org.springframework.stereotype.Service;
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import org.springframework.transaction.annotation.Transactional;
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import org.springframework.validation.annotation.Validated;
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import java.math.BigDecimal;
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import java.time.LocalDateTime;
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import java.util.*;
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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.module.erp.enums.ErrorCodeConstants.*;
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/**
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* ERP 采购计划 Service 实现类
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*
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* @author xiaoyi
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*/
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@Service
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@Validated
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@Slf4j
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public class ErpPurchasePlanServiceImpl implements ErpPurchasePlanService {
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/**
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* BPM 采购计划审批分类编码
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*/
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private static final String PURCHASE_PLAN_APPROVE_CATEGORY_CODE = "purchase_plan_approve";
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/**
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* 需求来源：库存预警
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*/
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public static final Integer DEMAND_SOURCE_STOCK_ALERT = 1;
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/**
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* 需求来源：运维/生产计划
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*/
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public static final Integer DEMAND_SOURCE_PLAN = 2;
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@Resource
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private ErpPurchasePlanMapper purchasePlanMapper;
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@Resource
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private ErpPurchasePlanItemMapper purchasePlanItemMapper;
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@Resource
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private ErpPurchaseRequestMapper purchaseRequestMapper;
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@Resource
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private ErpPurchaseRequestItemMapper purchaseRequestItemMapper;
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@Resource
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private ErpNoRedisDAO noRedisDAO;
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@Resource
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private BpmProcessInstanceApi processInstanceApi;
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@Resource
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private BpmCategoryService bpmCategoryService;
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@Resource
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private BpmProcessDefinitionService bpmProcessDefinitionService;
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@Resource
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private AdminUserApi adminUserApi;
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@Resource
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private MesMdItemApi mesMdItemApi;
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@Resource
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private MesWmStockApi mesWmStockApi;
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@Override
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@Transactional(rollbackFor = Exception.class)
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public Long createPurchasePlan(ErpPurchasePlanSaveReqVO createReqVO) {
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// 1. 校验明细
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List<ErpPurchasePlanItemDO> planItems = convertList(createReqVO.getItems(), item ->
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BeanUtils.toBean(item, ErpPurchasePlanItemDO.class));
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if (CollUtil.isEmpty(planItems)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 2. 生成计划单号
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String no = noRedisDAO.generate(ErpNoRedisDAO.PURCHASE_PLAN_NO_PREFIX);
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if (purchasePlanMapper.selectByNo(no) != null) {
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throw exception(PURCHASE_PLAN_NO_EXISTS);
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}
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// 3. 获取当前用户信息
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Long userId = Long.parseLong(getCurrentUserId());
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AdminUserRespDTO user = adminUserApi.getUser(userId);
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Long deptId = user != null ? user.getDeptId() : null;
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// 4. 插入采购计划
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ErpPurchasePlanDO plan = BeanUtils.toBean(createReqVO, ErpPurchasePlanDO.class, req -> req
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.setNo(no)
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.setStatus(ErpPurchasePlanStatusEnum.DRAFT.getStatus())
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.setPlanUserId(userId)
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.setPlanDeptId(deptId)
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.setGeneratedFlag(false)
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.setTotalCount(planItems.stream()
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.map(ErpPurchasePlanItemDO::getCount).filter(Objects::nonNull)
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.reduce(BigDecimal.ZERO, BigDecimal::add)));
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purchasePlanMapper.insert(plan);
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// 5. 插入明细
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purchasePlanItemMapper.insertBatch(convertList(planItems, item -> item.setPlanId(plan.getId())));
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return plan.getId();
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void updatePurchasePlan(ErpPurchasePlanSaveReqVO updateReqVO) {
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// 1.1 校验存在 + 草稿状态
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ErpPurchasePlanDO oldPlan = validatePurchasePlanCanModify(updateReqVO.getId());
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// 1.2 校验明细
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List<ErpPurchasePlanItemDO> planItems = convertList(updateReqVO.getItems(), item ->
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BeanUtils.toBean(item, ErpPurchasePlanItemDO.class));
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if (CollUtil.isEmpty(planItems)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 2. 更新主表
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ErpPurchasePlanDO updateObj = BeanUtils.toBean(updateReqVO, ErpPurchasePlanDO.class, req -> req
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.setNo(oldPlan.getNo())
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.setStatus(oldPlan.getStatus())
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.setPlanUserId(oldPlan.getPlanUserId())
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.setPlanDeptId(oldPlan.getPlanDeptId())
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.setGeneratedFlag(oldPlan.getGeneratedFlag())
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.setTotalCount(planItems.stream()
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.map(ErpPurchasePlanItemDO::getCount).filter(Objects::nonNull)
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.reduce(BigDecimal.ZERO, BigDecimal::add)));
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purchasePlanMapper.updateById(updateObj);
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// 3. 更新明细：先删后插
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purchasePlanItemMapper.deleteByPlanId(updateReqVO.getId());
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purchasePlanItemMapper.insertBatch(convertList(planItems, item -> item.setPlanId(updateReqVO.getId())));
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void deletePurchasePlan(Collection<Long> ids) {
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if (CollUtil.isEmpty(ids)) {
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return;
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}
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for (Long id : ids) {
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// 1. 校验存在 + 草稿状态
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validatePurchasePlanCanModify(id);
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// 2. 删除明细
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purchasePlanItemMapper.deleteByPlanId(id);
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// 3. 删除主表
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purchasePlanMapper.deleteById(id);
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}
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}
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@Override
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public ErpPurchasePlanDO getPurchasePlan(Long id) {
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return purchasePlanMapper.selectById(id);
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}
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@Override
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public List<ErpPurchasePlanItemDO> getPurchasePlanItemListByPlanId(Long planId) {
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return purchasePlanItemMapper.selectListByPlanId(planId);
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}
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@Override
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public List<ErpPurchasePlanItemDO> getPurchasePlanItemListByPlanIds(Collection<Long> planIds) {
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return purchasePlanItemMapper.selectListByPlanIds(planIds);
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}
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@Override
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public PageResult<ErpPurchasePlanDO> getPurchasePlanPage(ErpPurchasePlanPageReqVO pageReqVO) {
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return purchasePlanMapper.selectPage(pageReqVO);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void submitPurchasePlan(Long id, String processDefinitionKey, Long userId) {
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// 1. 校验存在 + 草稿状态
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ErpPurchasePlanDO plan = validatePurchasePlanCanModify(id);
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// 2. 校验是否有明细
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List<ErpPurchasePlanItemDO> items = purchasePlanItemMapper.selectListByPlanId(id);
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if (CollUtil.isEmpty(items)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 3. 创建 BPM 流程实例
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String processInstanceId = processInstanceApi.createProcessInstance(userId,
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new BpmProcessInstanceCreateReqDTO()
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.setProcessDefinitionKey(processDefinitionKey)
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.setBusinessKey(String.valueOf(id)));
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// 4. 更新采购计划状态为审批中
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purchasePlanMapper.updateById(new ErpPurchasePlanDO()
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.setId(id)
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.setStatus(ErpPurchasePlanStatusEnum.PROCESS.getStatus())
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.setProcessInstanceId(processInstanceId));
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}
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@Override
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public List<Map<String, Object>> getPurchasePlanApproveProcessDefinitionList() {
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// 1. 校验分类和流程定义是否存在
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validatePurchasePlanApproveCategoryAndProcessDefinition();
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// 2. 获取分类下的流程定义信息
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List<BpmProcessDefinitionInfoDO> definitionInfoList = bpmProcessDefinitionService
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.getProcessDefinitionInfoListByCategory(PURCHASE_PLAN_APPROVE_CATEGORY_CODE);
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if (CollUtil.isEmpty(definitionInfoList)) {
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return Collections.emptyList();
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}
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// 3. 遍历获取流程定义详情，过滤激活状态，保留最新版本
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Map<String, ProcessDefinition> latestVersionMap = new HashMap<>();
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for (BpmProcessDefinitionInfoDO info : definitionInfoList) {
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ProcessDefinition pd = bpmProcessDefinitionService.getProcessDefinition(info.getProcessDefinitionId());
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if (pd == null || pd.isSuspended()) {
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continue;
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}
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ProcessDefinition existing = latestVersionMap.get(pd.getKey());
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if (existing == null || pd.getVersion() > existing.getVersion()) {
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latestVersionMap.put(pd.getKey(), pd);
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}
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}
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// 4. 返回流程定义列表
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List<Map<String, Object>> result = new ArrayList<>();
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for (ProcessDefinition pd : latestVersionMap.values()) {
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Map<String, Object> item = new HashMap<>();
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item.put("id", pd.getId());
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item.put("key", pd.getKey());
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item.put("name", pd.getName());
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result.add(item);
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}
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return result;
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public void updatePurchasePlanAuditStatus(Long id, Integer bpmResult) {
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// 1. 校验存在
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ErpPurchasePlanDO plan = validatePurchasePlanExists(id);
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if (!ErpPurchasePlanStatusEnum.PROCESS.getStatus().equals(plan.getStatus())) {
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log.warn("[updatePurchasePlanAuditStatus] 采购计划({}) 不处于审批中状态", id);
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return;
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}
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// 2. 根据审批结果更新状态
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Integer newStatus = convertBpmResultToStatus(bpmResult);
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if (newStatus != null) {
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purchasePlanMapper.updateById(new ErpPurchasePlanDO().setId(id).setStatus(newStatus));
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}
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// 3. 审批通过且未生成申请，自动生成采购申请
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if (ErpPurchasePlanStatusEnum.APPROVE.getStatus().equals(newStatus)
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&& !Boolean.TRUE.equals(plan.getGeneratedFlag())) {
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try {
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List<Long> requestIds = doGeneratePurchaseRequests(plan);
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log.info("[updatePurchasePlanAuditStatus] 采购计划({}) 自动生成采购申请({})", id, requestIds);
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} catch (Exception e) {
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log.error("[updatePurchasePlanAuditStatus] 采购计划({}) 自动生成采购申请失败", id, e);
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// 不抛出异常，避免影响状态更新
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}
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}
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public ErpPurchasePlanDO generatePlanFromStockAlert(String name, Long supplierId) {
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// 1. 获取启用安全库存的物料
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List<MesMdItemSafetyStockRespDTO> safetyStockItems = mesMdItemApi.getSafetyStockItemList();
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if (CollUtil.isEmpty(safetyStockItems)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 2. 计算缺量，生成计划明细
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List<ErpPurchasePlanSaveReqVO.Item> items = new ArrayList<>();
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for (MesMdItemSafetyStockRespDTO item : safetyStockItems) {
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if (item.getMinStock() == null) {
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continue;
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}
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BigDecimal stock = mesWmStockApi.getStockQuantity(item.getId());
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BigDecimal shortage = item.getMinStock().subtract(stock == null ? BigDecimal.ZERO : stock);
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if (shortage.compareTo(BigDecimal.ZERO) <= 0) {
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continue;
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}
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ErpPurchasePlanSaveReqVO.Item planItem = new ErpPurchasePlanSaveReqVO.Item();
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planItem.setProductId(item.getMdmItemId());
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planItem.setProductUnitId(item.getUnitMeasureId());
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planItem.setCount(shortage);
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items.add(planItem);
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}
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if (CollUtil.isEmpty(items)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 3. 创建草稿采购计划
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ErpPurchasePlanSaveReqVO createReqVO = new ErpPurchasePlanSaveReqVO();
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createReqVO.setName(name != null ? name : "库存预警采购计划");
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createReqVO.setDemandSource(DEMAND_SOURCE_STOCK_ALERT);
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createReqVO.setPlanDate(LocalDateTime.now());
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createReqVO.setSupplierId(supplierId);
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createReqVO.setItems(items);
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Long planId = createPurchasePlan(createReqVO);
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return purchasePlanMapper.selectById(planId);
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}
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@Override
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@Transactional(rollbackFor = Exception.class)
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public List<Long> generatePurchaseRequests(Long id) {
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// 1. 校验存在 + 审核通过状态
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ErpPurchasePlanDO plan = validatePurchasePlanExists(id);
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if (!ErpPurchasePlanStatusEnum.APPROVE.getStatus().equals(plan.getStatus())) {
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throw exception(PURCHASE_PLAN_NOT_APPROVE);
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}
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// 2. 校验是否已生成申请
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if (Boolean.TRUE.equals(plan.getGeneratedFlag())) {
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throw exception(PURCHASE_PLAN_REQUEST_EXISTS);
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}
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// 3. 生成采购申请
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return doGeneratePurchaseRequests(plan);
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}
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/**
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* 执行生成采购申请（一个计划生成一张申请单）
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*
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* @param plan 采购计划
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* @return 采购申请编号列表
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*/
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private List<Long> doGeneratePurchaseRequests(ErpPurchasePlanDO plan) {
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// 1. 获取计划明细
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List<ErpPurchasePlanItemDO> planItems = purchasePlanItemMapper.selectListByPlanId(plan.getId());
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if (CollUtil.isEmpty(planItems)) {
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throw exception(PURCHASE_PLAN_ITEM_EMPTY);
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}
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// 2. 生成申请单号
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String requestNo = noRedisDAO.generate(ErpNoRedisDAO.PURCHASE_REQUEST_NO_PREFIX);
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if (purchaseRequestMapper.selectByNo(requestNo) != null) {
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throw exception(PURCHASE_REQUEST_NO_EXISTS);
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}
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// 3. 创建采购申请
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ErpPurchaseRequestDO request = new ErpPurchaseRequestDO();
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request.setNo(requestNo);
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request.setStatus(ErpPurchaseRequestStatusEnum.DRAFT.getStatus());
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request.setRequestUserId(plan.getPlanUserId());
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request.setRequestDeptId(plan.getPlanDeptId());
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request.setRequestTime(LocalDateTime.now());
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request.setSupplierId(plan.getSupplierId());
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request.setTotalCount(planItems.stream()
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.map(ErpPurchasePlanItemDO::getCount).filter(Objects::nonNull)
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.reduce(BigDecimal.ZERO, BigDecimal::add));
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request.setTotalPrice(BigDecimal.ZERO);
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request.setTotalProductPrice(BigDecimal.ZERO);
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request.setTotalTaxPrice(BigDecimal.ZERO);
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request.setRemark(plan.getRemark());
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request.setInStatus(0);
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purchaseRequestMapper.insert(request);
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// 4. 创建采购申请明细
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List<ErpPurchaseRequestItemDO> requestItems = convertList(planItems, item -> {
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ErpPurchaseRequestItemDO requestItem = new ErpPurchaseRequestItemDO();
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requestItem.setRequestId(request.getId());
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requestItem.setProductId(item.getProductId());
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requestItem.setProductUnitId(item.getProductUnitId());
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requestItem.setCount(item.getCount());
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requestItem.setDemandTime(item.getDemandTime());
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requestItem.setRemark(item.getRemark());
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requestItem.setInCount(BigDecimal.ZERO);
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return requestItem;
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});
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purchaseRequestItemMapper.insertBatch(requestItems);
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// 5. 回写计划已生成标记
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purchasePlanMapper.updateById(new ErpPurchasePlanDO()
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.setId(plan.getId()).setGeneratedFlag(true));
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return List.of(request.getId());
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}
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private Integer convertBpmResultToStatus(Integer bpmResult) {
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if (BpmTaskStatusEnum.APPROVE.getStatus().equals(bpmResult)) {
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return ErpPurchasePlanStatusEnum.APPROVE.getStatus();
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}
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if (BpmTaskStatusEnum.REJECT.getStatus().equals(bpmResult)) {
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return ErpPurchasePlanStatusEnum.REJECT.getStatus();
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}
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if (BpmTaskStatusEnum.CANCEL.getStatus().equals(bpmResult)) {
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return ErpPurchasePlanStatusEnum.CANCEL.getStatus();
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}
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return null;
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}
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private void validatePurchasePlanApproveCategoryAndProcessDefinition() {
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List<cn.iocoder.yudao.module.bpm.dal.dataobject.definition.BpmCategoryDO> categories =
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bpmCategoryService.getCategoryListByCode(Collections.singletonList(PURCHASE_PLAN_APPROVE_CATEGORY_CODE));
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if (CollUtil.isEmpty(categories)) {
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throw exception(PURCHASE_PLAN_BPM_CATEGORY_NOT_EXISTS);
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}
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List<BpmProcessDefinitionInfoDO> definitionInfoList = bpmProcessDefinitionService
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.getProcessDefinitionInfoListByCategory(PURCHASE_PLAN_APPROVE_CATEGORY_CODE);
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if (CollUtil.isEmpty(definitionInfoList)) {
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throw exception(PURCHASE_PLAN_BPM_PROCESS_DEFINITION_NOT_EXISTS);
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}
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}
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private ErpPurchasePlanDO validatePurchasePlanExists(Long id) {
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ErpPurchasePlanDO plan = purchasePlanMapper.selectById(id);
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if (plan == null) {
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throw exception(PURCHASE_PLAN_NOT_EXISTS);
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}
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return plan;
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}
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private ErpPurchasePlanDO validatePurchasePlanCanModify(Long id) {
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ErpPurchasePlanDO plan = validatePurchasePlanExists(id);
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if (!ErpPurchasePlanStatusEnum.DRAFT.getStatus().equals(plan.getStatus())) {
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throw exception(PURCHASE_PLAN_UPDATE_FAIL_NOT_DRAFT, plan.getNo());
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}
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return plan;
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}
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private String getCurrentUserId() {
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return cn.iocoder.yudao.framework.security.core.util.SecurityFrameworkUtils.getLoginUserId().toString();
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}
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}
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