在 mongodb 数据库中查找目标和成就

Question

我正在尝试使用 express 在 node.js 中开发一个应用程序

我有 activity、target 和 bfdwork 三个不同的 shcmeas

我一直试图得到下面提到的东西，但不知何故无法弄清楚如何

1. 我要月报
2. 一份报告，可以计算特定月份实现了多少目标以及还剩多少目标
3. 上个月剩下的目标结转到下个月

我使用了聚合函数，但它不是填充活动，我无法使目标与其对齐

任何人都可以帮忙吗？

1) Activity Schema 
var mongoose = require("mongoose");
var addactivitySchema = new mongoose.Schema({
    nmeofactivity:
    {type:String,
    required:true,
    unique:true
    },
    categoryofactivity:{
        type:String,
        required:true,
    }
});



module.exports=mongoose.model("Addactivity", addactivitySchema);

2) BFD work

//schema to add activities
var mongoose = require("mongoose");
var Addactivity = require("./addactivity");
var Village = require("./village");
var User = require("./users");

var bfdworkSchema = new mongoose.Schema({
    nameofbfd:{
    type: mongoose.Schema.Types.ObjectId,
    ref: 'User'
  },
    activityname:{
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Addactivity'
  },
    villagename:{
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Village'
  },
    wadiname:{type: String, required:true},
    dateofcamp:{type: Date, required:true},
    beneficiaries:{type:Number, required:true},
    followup:{type:Number},
    treatment:{type:Number},
    
    
    createdon:{ type: Date, default: Date.now }

});



module.exports=mongoose.model("BFDWork", bfdworkSchema);

3) Target Schema 

//schema for targets
var mongoose = require("mongoose");
var Addactivity = require("./addactivity");

var targetSchema = new mongoose.Schema({
    year:Number,
    activity: {
    type: mongoose.Schema.Types.ObjectId,
    ref: 'Addactivity'
  },
    jantarget:Number,
    febtarget:Number,
    martarget:Number,
    aprtarget:Number,
    maytarget:Number,
    juntarget:Number,
    jultarget:Number,
    augtarget:Number,
    septarget:Number,
    octtarget:Number,
    novtarget:Number,
    dectarget:Number,
    createdon:{ type: Date, default: Date.now },
});

module.exports=mongoose.model("Target", targetSchema);

Below is the aggregate code
app.get("/getdata", (req,res)=>{
    res.render("totalwork");
});

app.post("/getdata", (req, res) => {
  const startDate = new Date(req.body.fromdate);
  const endDate = new Date(req.body.todate);
  BFDWork.find({})
.populate('activityname')   
  BFDWork.aggregate([
    {
      $match: {
        dateofcamp: {
          $gte: startDate,
          $lte: endDate
        }
      }
    },
    {
      $group: {
        _id: "$activityname",
        totalBeneficiaries: { $sum: "$beneficiaries" },
        count: { $sum: 1 }
      }
    },
    {
      $project: {
        _id: 0,
        activity: "$_id",
        totalBeneficiaries: 1,
        count: 1
      }
    }
  ])
    
  .exec(function(err, results) {
    if (err) {
      // Handle error
    } else {
      Target.find({}, (err, foundtarget)=>{
          if(err){
              res.redirect("/");
              console.log(err);
          }else{
              Addactivity.find({}, (err, foundacti)=>{
                  if(err){
                      console.log(err);
                      res.redirect("/");
                  }else{
                      res.render("showdata", {results:results, foundtarget:foundtarget, foundacti:foundacti});  
                  }
              })
              
          }
      });
    
    }
  });
});