Question

我使用单个脚本将虚拟数据插入到我的应用程序的数据库中。我是node.js的新手并且怀疑我可能正在吹堆栈内存......但是：

我正在获取流程退出代码3，根据文档：

3 Internal JavaScript Parse Error - The JavaScript source code internal in Node's bootstrapping process caused a parse error. This is extremely rare, and generally can only happen during development of Node itself.

我使用3个循环，它是所有嵌套的回调代码。由于我是JavaScript后端编程的新手，我不确定堆栈是否可能成为问题，但退出代码并不能让它听起来像堆栈问题。

以下是代码：

var mongoose = require('mongoose');

var UserModel = require('../models/UserModel');
UserModel.registerSchema(mongoose);
var TeamModel = require('../models/TeamModel');
TeamModel.registerSchema(mongoose);
var PlayerModel = require('../models/PlayerModel');
PlayerModel.registerSchema(mongoose);


var fs = require('fs');
var parsedJSON = JSON.parse(fs.readFileSync('../dummy_data/dummy_player_data', 'utf8'));

var system_db = mongoose.connect('mongodb://localhost:27017/local_dev_db');

var userz = UserModel.getNewUser(system_db).find({}, function (err, users) {

    users.forEach(function (user, userIndex) {

        var user_id = user._id.toString();
        var teamz = TeamModel.getNewTeam(system_db, user_id).find({}, function (err, teams) {
            teams.forEach(function (team, teamIndex) {


                parsedJSON.forEach(function (player, playerIndex) {

                    var Player = PlayerModel.getNewPlayer(system_db, user_id);

                    var newPlayer = new Player({
                        team_id: team._id,
                        firstName: player.firstName,
                        lastName: player.lastName,
                        hidden: player.hidden,
                        email: player.email,
                        phone: player.phone,
                        gender: player.gender,
                        age: player.age,
                        shirtNumber: player.shirtNumber
                    });

                    newPlayer.save(function (err, result) {
                        if (err) {
                            console.log("error in player save method:", err);
                        }
                        if (result) {
                            //console.log('Added!', result);
                        }
                    });

                });
            });
        });
    });
});

我在使用大量数据时只收到错误代码，这就是让我觉得它是堆栈问题的原因。我正在使用Mongoose进行MongoDB。关于可能发生什么的任何想法？

在getNewUser，getNewTeam，getNewPlayer里面我有：

exports.getNewUser = function (system_db) {
    return system_db.model('users', userSchema);;
};

exports.getNewTeam = function (system_db,user_id) {
    return system_db.model('teams_'.concat(user_id.toString()), teamSchema);
};

exports.getNewPlayer = function (system_db,user_id) {
    return system_db.model('players_'.concat(user_id.toString()), playerSchema);
};

这些函数正在为每个用户，团队和玩家返回mongoose模型。

Node.js - 将虚拟数据插入数据库 - 获取进程退出代码3

0 个答案: