如何在填充中使用查找猫鼬

问题描述

我想将一个字符串与员工 ID、员工姓名、项目名称相匹配

我的模特：（员工）

const employeeSchema = new mongoose.Schema(
  {
    employeeID: { type: String,unique: true,required: true },departmentID: { type: mongoose.Types.ObjectId,ref: 'Department',default: null },employeeName: { type: String,gender: { type: String,default: "",enum: ["Male","Female"] },designation: { type: String,default: "" },email: { type: String,branchName: { type: String,employeeType: { type: String,jobStatus: { type: String,joiningDate: { type: Date,leavingDate: { type: Date,comments: { type: String,managerID: { type: mongoose.Types.ObjectId,ref: 'Employee',region: { type: String,}
);

（项目）

const projectSchema = new mongoose.Schema(
  {
    projectName: {type: String,required: true},tech: {type: String,startDate: {type: Date,required:true},endDate: {type: Date,customerID:{type:mongoose.Types.ObjectId,ref:'Customer'}
  }
);

（员工-项目）

const employeeProjectSchema = new mongoose.Schema(
  {
    empID: {type: mongoose.Types.ObjectId,required: true,ref: 'Employee'},projectID: {type: mongoose.Types.ObjectId,ref: 'Project'},allocation: {type: [Number]},assignStartDate: {type: Date},assignEndDate: {type: Date},}
);

我正在从员工项目表运行我的查询，这是我的主表。

我想做的是将一个字符串与employeeID 和employeeName(employee table) 以及projectName(project table) 匹配。 我现在在做什么（这是错误的）

async rpSearch(data): Promise<any> {
    try {
      const result = await MongooseEmployeeProject.find()
      .populate({
        path: 'empID',select: 'employeeID employeeName designation region comments resourceManager',match:{
          type:{data}
        }
      })
      .populate({
        path: 'projectID',select: 'projectName tech startDate endDate customerID'
        match:{
          type:{data}
      })

请指导我

解决方法

首先，path 必须是架构的字段名称。您将 path 设置为“employeeID”，但“empID”作为employeeProjectSchema 的字段名称是正确的。

其次，您设置了 match，但您的 type 和 employeeSchema 中都没有 employeeProjectSchema 字段。所以你必须删除 match。

async rpSearch(data): Promise<any> {
    try {
      const result = await MongooseEmployeeProject.find()
      .populate({
        path: 'empID',select: 'employeeID employeeName designation region comments resourceManager'
      })
      .populate({
        path: 'projectID',select: 'projectName tech startDate endDate customerID'
      })