I am not able to populate tpaigns data that reference to user? i linked campaigns to user. I want to render campaigns created concerned user only

问题

Campaign data is storing except user reference in MongoDB campaign collection. How do I render only campaigns that were created by the user but not all campaigns by every user? I need this after the user logged in to website.

Campaign schema

var mongoose = require('mongoose');    
var Schema = mongoose.Schema;

var campaignSchema = new Schema({
    Title: {type: String},
    Description:  { type: String },
    Rules:  {} ,
    Banner:  { type: String },
    user: { 
      type: mongoose.Schema.Types.ObjectId, 
      ref: 'User' 
    }       
  });

 module.exports = mongoose.model('Campaigns', campaignSchema);

User schema

const bcrypt = require('bcryptjs');
const crypto = require('crypto');
const mongoose = require('mongoose');

const userSchema = new mongoose.Schema({
  username: String,
  email: { type: String, unique: true },
  password: String,
  phonenumber: Number,
  passwordResetToken: String,
  passwordResetExpires: Date,
  emailVerificationToken: String,
  emailVerified: Boolean,   
  snapchat: String,
  facebook: String,
  twitter: String,
  google: String,
  github: String,
  instagram: String,
  linkedin: String,
  steam: String,
  quickbooks: String,
  tokens: Array,    
  profile: {
    name: String,
    gender: String,
    location: String,
    website: String,
    picture: String
  }    
}, { timestamps: true });

/**
 * Password hash middleware.
 */
userSchema.pre('save', function save(next) {
  const user = this;
  if (!user.isModified('password')) { return next(); }
  bcrypt.genSalt(10, (err, salt) => {
    if (err) { return next(err); }
    bcrypt.hash(user.password, salt, (err, hash) => {
      if (err) { return next(err); }
      user.password = hash;
      next();
    });
  });
});

/**
 * Helper method for validating user's password.
 */
userSchema.methods.comparePassword = function comparePassword(candidatePassword, cb) {
  bcrypt.compare(candidatePassword, this.password, (err, isMatch) => {
    cb(err, isMatch);
  });
};

/**
 * Helper method for getting user's gravatar.
 */
userSchema.methods.gravatar = function gravatar(size) {
  if (!size) {
    size = 100;
  }
  if (!this.email) {
    return `https://gravatar.com/avatar/?s=${size}&d=blank`;
  }
  const md5 = crypto.createHash('md5').update(this.email).digest('hex');
  return `https://gravatar.com/avatar/${md5}?s=${size}&d=blank`;
};

const User = mongoose.model('User', userSchema);

module.exports = User;

Route to render my campaigns created by the user. This is where I want to send campaign details created by the user.

router.get('/camptab', function(req, res, next) {
   User.findById({ userid:req.user.id })
    .populate('campaign').exec((err, campaign) => {
      res.render('camptab', {  camplist : campaign });
    })
});

来源：https://stackoverflow.com/questions/59915784/i-am-not-able-to-populate-tpaigns-data-that-reference-to-user-i-linked-campaign

标签

mongodb

express

mongoose

mongoose-populate