update 保存节点用户关系

laws-modules/src/main/java/com/jero/modules/activiti/service/ProcessNodeLinkService.java

@@ -1,6 +1,7 @@
 package com.jero.modules.activiti.service;
 
 import com.baomidou.mybatisplus.core.conditions.query.LambdaQueryWrapper;
+import com.baomidou.mybatisplus.core.toolkit.StringUtils;
 import com.baomidou.mybatisplus.core.toolkit.Wrappers;
 import com.jero.modules.activiti.entity.ProcessNode;
 import com.jero.modules.activiti.enums.VariableTypeEnum;
@@ -46,6 +47,10 @@ public class ProcessNodeLinkService extends ServiceImpl<ProcessNodeLinkMapper, P
                 }
             }
             if (!userIdList.isEmpty()) {
+                //如果当前节点绑定人了，先删除之前绑定的，每次都是覆盖
+                LambdaQueryWrapper<ProcessNodeLink> wrapper1 = new LambdaQueryWrapper<>();
+                wrapper1.eq(ProcessNodeLink::getProcessNodeId,processNodeId);
+                this.remove(wrapper1);
                 for (String userId : userIdList) {
                     ProcessNodeLink processNodeLink = new ProcessNodeLink();
                     processNodeLink.setProcessDefinitionId(processDefinitionId);