content: package com.ruoyi.flowable.service.impl;
  
  import cn.hutool.core.bean.BeanUtil;
  import cn.hutool.core.util.ObjectUtil;
  import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
  import com.baomidou.mybatisplus.core.toolkit.Wrappers;
  import com.baomidou.mybatisplus.extension.plugins.pagination.Page;
  import com.ruoyi.common.exception.ServiceException;
  import com.ruoyi.common.utils.DateUtils;
  import com.ruoyi.common.utils.SecurityUtils;
  import com.ruoyi.flowable.domain.WfCategory;
  import com.ruoyi.flowable.domain.bo.WfModelBo;
  import com.ruoyi.flowable.domain.vo.WfCategoryVo;
  import com.ruoyi.flowable.domain.vo.WfModelVo;
  import com.ruoyi.flowable.mapper.WfCategoryMapper;
  import com.ruoyi.flowable.page.PageQuery;
  import com.ruoyi.flowable.page.TableDataInfo;
  import com.ruoyi.flowable.service.IWfCategoryService;
  import com.ruoyi.flowable.service.IWfModelService;
  import com.ruoyi.flowable.utils.StringUtils;
  import lombok.RequiredArgsConstructor;
  import org.springframework.stereotype.Service;
  import org.springframework.transaction.annotation.Transactional;
  
  import java.util.Collection;
  import java.util.List;
  import java.util.Map;
  
  /**
   * 流程分类Service业务层处理
   *
   * @author fengcheng
   * @date 2022-01-15
   */
  @RequiredArgsConstructor
  @Service
  public class WfCategoryServiceImpl implements IWfCategoryService {
      private final WfCategoryMapper baseMapper;
  
      private final IWfModelService modelService;
  
      /**
       * 获取流程分类详细信息
       *
       * @param categoryId 分类主键
       * @return
       */
      @Override
      public WfCategoryVo queryById(String categoryId) {
          return baseMapper.selectVoById(categoryId);
      }
  
      /**
       * 查询流程分类列表
       *
       * @param category  流程分类对象
       * @param pageQuery 分页参数
       * @return
       */
      @Override
      public TableDataInfo<WfCategoryVo> queryPageList(WfCategory category, PageQuery pageQuery) {
          LambdaQueryWrapper<WfCategory> lqw = buildQueryWrapper(category);
          Page<WfCategoryVo> result = baseMapper.selectVoPage(pageQuery.build(), lqw);
          return TableDataInfo.build(result);
      }
  
      /**
       * 查询全部的流程分类列表
       *
       * @param category 流程分类对象
       * @return
       */
      @Override
      public List<WfCategoryVo> queryList(WfCategory category) {
          LambdaQueryWrapper<WfCategory> lqw = buildQueryWrapper(category);
          return baseMapper.selectVoList(lqw);
      }
  
      private LambdaQueryWrapper<WfCategory> buildQueryWrapper(WfCategory category) {
          Map<String, Object> params = category.getParams();
          LambdaQueryWrapper<WfCategory> lqw = Wrappers.lambdaQuery();
          lqw.like(StringUtils.isNotBlank(category.getCategoryName()), WfCategory::getCategoryName, category.getCategoryName());
          lqw.eq(StringUtils.isNotBlank(category.getCode()), WfCategory::getCode, category.getCode());
          return lqw;
      }
  
      /**
       * 新增流程分类
       *
       * @param category 流程分类信息
       * @return 结果
       */
      @Override
      public int insertCategory(WfCategory category) {
          WfCategory add = BeanUtil.toBean(category, WfCategory.class);
          add.setCreateTime(DateUtils.getNowDate());
          add.setCreateBy(SecurityUtils.getLoginUser().getUser().getNickName());
          return baseMapper.insert(add);
      }
  
      /**
       * 修改流程分类
       *
       * @param category 流程分类对象
       * @return
       */
      @Override
      public int updateCategory(WfCategory category) {
          WfCategory update = BeanUtil.toBean(category, WfCategory.class);
          update.setUpdateTime(DateUtils.getNowDate());
          update.setUpdateBy(SecurityUtils.getLoginUser().getUser().getNickName());
          return baseMapper.updateById(update);
      }
  
      /**
       * 校验并删除数据
       *
       * @param ids 主键集合
       * @param isValid 是否校验,true-删除前校验,false-不校验
       * @return 结果
       */
      @Override
      @Transactional(rollbackFor = Exception.class)
      public int deleteWithValidByIds(Collection<String> ids, Boolean isValid) {
          if (isValid) {
              WfModelBo modelBo = new WfModelBo();
              for (String id : ids) {
                  modelBo.setCategory(baseMapper.selectVoById(id).getCode());
                  List<WfModelVo> wfModelVos = modelService.selectList(modelBo);
                  if (wfModelVos.size() > 0) {
                      throw new ServiceException("分类下存在流程模型，不允许删除");
                  }
              }
          }
          return baseMapper.deleteBatchIds(ids);
      }
  
      /**
       * 校验分类编码是否唯一
       *
       * @param category 流程分类
       * @return 结果
       */
      @Override
      public boolean checkCategoryCodeUnique(WfCategory category) {
          return baseMapper.exists(new LambdaQueryWrapper<WfCategory>()
                  .eq(WfCategory::getCode, category.getCode())
                  .ne(ObjectUtil.isNotNull(category.getCategoryId()), WfCategory::getCategoryId, category.getCategoryId()));
      }
  }
  