Question

我有一个架构设计，用户可以在其中提交语言翻译请求。翻译请求文档引用了用户文档，属性被称为＆＃34; _requester＆＃34;和＆＃34; _翻译＆＃34;。我希望能够在对翻译请求集合执行某些查询时填充这些内容。当我执行某个查询时，会出现问题，填充_translator并且结果看起来很完美。然后，如果我执行完全相同的查询，则第二次失败，并显示错误消息架构尚未注册模型＆＃34;用户＆＃34;。

以下是我的代码编码方式。有两个文件。 mongoose所在的一个js文件和另一个通过模型使用它的js文件，就像依赖注入一样。

（适用猫鼬-util.js中）

function MongooseUtil(){
    var mongoose = require('mongoose');
    var mongoosePaginate = require('mongoose-paginate');
    var Schema = {
        User: {
            userId: String,
            password: String,
            nickName: String,
            state: String,
            emailVerificationCode: String,
            avatarUrl: String,
            points: Number
        },
        TranslationRequest: {
            _requester: { type: mongoose.Schema.ObjectId, ref: "User" },
            _translator: { type: mongoose.Schema.ObjectId, ref: "User" },
            to: String,
            from: String,
            textToTranslate: String,
            translatedText: String,
            state: String,
            requestedTime: Number,
            translatedTime: Number,
            gradedTime: Number,
            grade: Number,
            requesterUserId: String,
            translatorUserId: String,
            graderUserId: String
        }
    };

    // user
    var userSchema = mongoose.Schema(Schema.User);
    var userModel = mongoose.model('User', userSchema);

    // translation request
    var translationRequestSchema = mongoose.Schema(Schema.TranslationRequest);
    translationRequestSchema.plugin(mongoosePaginate);
    var translationRequestModel = mongoose.model('TranslationRequest', translationRequestSchema);

    this.getUserModel = function(){
        return userModel;
    }

    this.getTranslationRequestModel = function(){
        return translationRequestModel;
    }
}

module.exports = new MongooseUtil();

（适用翻译请求-service.js）

function TranslationRequestService(){
    var mongooseUtil = require('../../../utils/mongoose-util/mongoose-util');
    var TranslationRequest = mongooseUtil.getTranslationRequestModel();
    var _this = this;

    this.getTranslationResultById = function(id){
        return TranslationRequest.findOne({ _id: id })
            .populate('_translator', 'nickName avatarUrl')
            .exec();
    }
}

module.exports = new TranslationRequestService();

（如何使用处理程序）

// following lines are executed twice by user's repeated action on UI
var service = require('./translation-request-service);
service.getTranslationResultById(id);

Answer 1

我通过立即克隆返回的结果并运行我的逻辑来修复问题。我仍然不知道是什么导致了这个问题。我所做的就是将填充结果发送到我的Web套接字到客户端。

由于Schema尚未注册，Mongoose第二次抛出错误

1 个答案: