Question

我喜欢在另一个文档中嵌入文档。这里我的第一个猫鼬文件包括第二个“格栅”： chp_bat.js

var mongoose = require('mongoose')
  , Schema = mongoose.Schema
  , ObjectId = Schema.ObjectId
  , Grille = require('../models/grille');

function validatePresenceOf(value) {
  return value && value.length;
}

var Chp_bat = new Schema({
  name : { type: String, validate: [validatePresenceOf, 'a chp_bat is required'] },
  avatar : { type: String },
  description : { type: String },
  grille : [Grille],
  created_at : Date,
  updated_at : Date
});
var Chp_bat = mongoose.model('Chp_bat', Chp_bat);
module.exports = mongoose.model('Chp_bat', Chp_bat);

我的第二份文件：grille.js

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


function validatePresenceOf(value) {
  return value && value.length;
}

var Grille = new Schema({
  name : { type: String, validate: [validatePresenceOf, 'a grille is required'] },
  avatar : { type: String },
  description : { type: String },
  size : { x: Number, y: Number },
  created_at : Date,
  updated_at : Date
});
var Grille = mongoose.model('Grille', Grille);
module.exports = mongoose.model('Grille', Grille);

我的路线：

var User = require('../../models/user')
  , Chp_bat = require('../../models/chp_bat')
  , Grille = require('../../models/grille');

module.exports = function (app){

/*
 * GET New chp_bat.
 */
  app.get('/chp_bat_new', ensureAuthenticated, function (req, res){
      Grille.find({}, function (err, docs) {
        res.render('chp_bat/new', {
          docs: docs,
      user : req.user,
      title : ' Que voulez vous créer Maitre Du Jeu'
        });
      });
    });


/*
 * POST New chp_bat.
 */
  app.post('/maitre-chp_bat-new', ensureAuthenticated, function (req, res){
    var chp_bat = new Chp_bat();
    chp_bat.name = req.body.name;
    chp_bat.avatar = req.body.avatar;
    chp_bat.description = req.body.description;
    chp_bat.grille.push(req.body.grille);
    chp_bat.created_at = new Date();
    chp_bat.save(function (err) {
      if (!err) {
        res.redirect('/maitre-chp_bat-new');
        console.log(req.body);
      }
      else {
        res.redirect('/maitre-chp_bat-new');
      }
    });
    });



};

我收到此错误：对象{size：{}}没有方法'cast' 我觉得自己很好，制作像mongoose docs一样的东西，我不明白我做得不好。

====

所以，就像你发布问题时一样，答案来了。我是为其他人写的：

当您编写嵌入的文档时，请包含_id，如下所示：

grille: [Grille._id],

太容易了。

Answer 1

将你的文档链接在一起考虑做这样的事情：

app.js

var express = require('express'),
    app = express(),
    require('./routes')(app);
}
console.log('Listening on port 8888');

路由/ index.js

module.exports = function(app){
    var Users = require('../controllers/users')(app);
    app.get('/logout',Users.profile);
}

控制器/ users.js

module.exports = function(app){
    var User = require('../models/users')(app),

    return {
        profile: function (req, res) {
            User.findOne(
                {'email' : 'your@email.com'},
                '_id name email modifiedOn',
                function(err, user) {
                    if (!err) {
                        //do something with user
                    } else {
                        res.send({"error": "some error happened"});
                    }
                }
            );
        },
        login: function(req,res){
            //login to login here.  you know like req.body.email and req.body.password etc.
        }
    }
}

模型/ users.js

module.exports = function(app){
var db = require('../lib/db')(app);

var userSchema = new db.Schema({
    first_name: {
        type: String,
        required: true
    },
    last_name: {
        type: String,
        required: true
    },
    email: {
        type: String, 
        unique: true,
        required: true
    },
    password: {
        type: String,
        required: true
    },
    createdOn: { 
        type: Date, 
        default: Date.now
    },
    modifiedOn: { 
        type: Date, 
        default: Date.now
    },
    lastLogin: { 
        type: Date, 
        default: Date.now
    }
});
db.model( 'User', userSchema);

return db.model('User');
}

LIB / db.js

module.exports = function(app){
    var mongoose = require('mongoose');
    var uri = 'mongodb://'+app.get('db_host')+':'+app.get('db_port')+'/'+app.get('db_database');
    var options = {}
    mongoose.connect(uri,options);

    mongoose.connection.on('connected', console.log.bind(console, 'Mongoose connected to ' + uri));
    mongoose.connection.on('error',console.error.bind(console, 'connection error:'));
    mongoose.connection.on('disconnected', console.log.bind('Mongoose disconnected'));

    process.on('SIGINT', function() {
        mongoose.connection.close(function () {
            console.log('Mongoose disconnected through app termination');
            process.exit(0);
        });
    });
    return mongoose;
}

请注意，在此示例中，我使用db_host，port和database的配置项。就个人而言，这个设置对我很有用。当您的应用程序变得更大时，它会派上用场。

Answer 2

由于

，您收到此错误

chp_bat.grille.push(req.body.grille);

Mongoose嵌入式文档/ Object {size：{}}没有方法强制转换

2 个答案: