模特问题猫鼬-Java 学习之路

This is the model: /doc/proModel.js

module.exports = function (mongooseModels) {
var mongoose = require('mongoose');
mongoose.connect('mongodb://127.0.0.1/DocTest');
var Schema = mongoose.Schema;

var ProSchema = new Schema({
    _id: {type: Schema.Types.ObjectId},
    Titre: {
        type: String,
        //required: true
    },
    Prenom: {
        type: String,
        //required: true
    },
    Nom: {
        type: String,
        //required: true
    }
});

var proModel = {
    Pro: mongoose.model("Pro", ProSchema)
};

return proModel;

This is the main.js:

var mongoose = require('mongoose');
mongoose.connect('mongodb://127.0.0.1/DocTest');
var proModel = require('./doc/proModel');

var pro1 = new proModel().Pro({
_id :{type: new mongoose.Types.ObjectId()},
Nom: "Ok"
});

pro1.save(function (err) {
if (err) return handleError(err);

});

This is the error I'm getting:

发生异常：错误ReferenceError：在Model的/Users/maxime/Documents/Projets/Test/main.js:11:21中未定义handleError . $ wrapCallback（/ Users / maxime / Documents / Projets / Test / node_modules / mongoose /lib/model.js:3835:16）/Users/maxime/Documents/Projets/Test/node_modules/mongoose/lib/services/model/applyHooks.js:167:17 at _combinedTickCallback（internal / process / next_tick.js ：73：7）在ontimeout的timeout.Module.runMain [as _onTimeout]（module.js：606：11）的process._tickCallback（internal / process / next_tick.js：104：9）中（timers.js：386： 14）在Timer.listOnTimeout的tryOnTimeout（timers.js：250：5）（timers.js：214：5）

Any idea would be greatly appreciated

Cheers,

1 回答

所以有多个错误

第一个 handleError(err) ，您的函数 handleError 不存在 .

第二，你保存模型的方式是错误的 . 以下是我编写代码的方法：

/doc/proModel.js

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

const ProSchema = new Schema({
    _id: {type: Schema.Types.ObjectId},
    Titre: {
        type: String,
        //required: true
    },
    Prenom: {
        type: String,
        //required: true
    },
    Nom: {
        type: String,
        //required: true
    }
});

module.exports = mongoose.model("Pro", ProSchema);

/main.js

const mongoose = require('mongoose');
const ProModel = require('./doc/proModel');

mongoose.connect('mongodb://127.0.0.1/DocTest');

const pro1 = new ProModel({
    _id : new mongoose.Types.ObjectId(),
    Nom: "Ok"
});

const handleError = function() {
    console.error(err);
    // handle your error
};

pro1.save(function (err) {
    if (err) return handleError(err);
});

根据模型组织，这是我喜欢的应用程序结构

/models
  pro-model.js
  users-model.js
  books-model.js
  orders-model.js
  index.js

// /models/index.js file
const fs = require('fs');

fs.readdirSync(__dirname)
.forEach((file) => {
    if (file.endsWith("-model.js")) {
        const M = require(`./${file}`);
        exports[M.modelName] = M;
    }
});

那么如果你想获得你所有的模型你可以做到：

const models = require('./models');

new models.Pro({
    _id : new mongoose.Types.ObjectId(),
    Nom: "Ok"
})
.save();

回复于 2024-05-07T09:01:27+08:00

模特问题猫鼬

1 回答

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