update

controller/userController.js

 const crypto = require('crypto');
 const _ = require('lodash');
+const mongoose = require('mongoose');
 
 const createError = require('http-errors');
 
@@ -330,6 +331,8 @@ async function updateRole(req, res, next) {
 
 async function deleteRole(req, res, next) {
     try {
+        // 角色删除 将用户中的角色去掉。$pull 从数组中删除一个指定元素
+        await DB.User.updateMany({}, {$pull: {roles: (req.body._id)}}); 
         const ret = await DB.Role.findOneAndUpdate({ _id: req.body._id }, { del: 1 });
         res.sendData(ret)
     } catch (error) {

db/models/letianAgrDecision.js

+const mongoose = require('mongoose');
+const Schema = mongoose.Schema;
+const moment = require('moment');
+
+/**
+ * 农事决策--由专家录入
+ */
+const AgrTaskSchema = new Schema({
+    
+    name: {
+        type: "任务名称",
+    },
+
+    agrType: {
+        type: Number,
+        comment: "农事类型",
+    },
+    startTime: {
+        type: Date,
+        omment: "任务开始日期",
+    },
+    endTime: {
+        type: Date,
+        omment: "任务结束日期",
+    },
+    leader: {
+        type: mongoose.Types.ObjectId,
+        ref: 'User',
+        comment: "负责人--从分配负责人开始, 任务就开启"
+    },
+
+    status: {
+        type: Number,
+        comment: "1. 待分配(没有leader), 3. 进行中,  5 已完成"
+    },
+    auditStatus: {
+        type: Number,
+        comment: "1. 待审核,  2,  审核通过,  3.审核不通过, 记录最新的审核记录"
+    },
+
+    creator: {
+        type: mongoose.Types.ObjectId,
+        ref: 'User',
+        comment: "创建人"
+    },
+
+
+    createdAt: {
+        type: Date,
+        default: Date.now,
+        get: v => moment(v).format("YYYY-MM-DD HH:mm:ss"),
+    },
+    updatedAt: {
+        type: Date,
+        default: Date.now,
+        get: v => moment(v).format("YYYY-MM-DD HH:mm:ss"),
+    },
+    del: {
+        type: Number,
+        default: 0,
+        comment: '默认0 ,  1:表示删除, 若有其他隐藏业务 不要混用此字段。'
+    }
+}, {
+    toJSON: {
+        getters: true
+
+    }
+});
+
+
+const AgrTask = mongoose.model('AgrTask', AgrTaskSchema, 'letianAgrTask');
+module.exports = AgrTask;
\ No newline at end of file