Question

当我尝试在将对象插入Mongo集合的客户端上使用Meteor方法时，我得到“TypeError：无法读取未定义的属性'_id'”。我正在使用Collection2-core和Validated Method。尝试调用该方法的客户端代码是：

import { submitNewEvent } from '../../../api/events/events';

const newEvent = {
    eventName: "A String",
    eventDescription: "A String",
    eventPosition: {lat: 40, lng: -70},
};

submitNewEvent.validate(newEvent);
submitNewEvent.call(newEvent, (err, res) => {
    if (err) {
        console.log(err);
    } else {
        console.log(res);
    }
});

方法/集合在模块imports / api / events.js中定义：

import { ValidatedMethod } from 'meteor/mdg:validated-method';

import eventSchema from './eventSchema';

Events = new Mongo.Collection('events');
Events.attachSchema(eventSchema);

export const submitNewEvent = new ValidatedMethod({
    name: 'submitNewEvent',
    validate: eventSchema.validator(),
    run({newEvent}) {
        Events.insert(newEvent);
    }
});

eventSchema本身不指定_id字段，但所有其他字段都会签出。奇怪的是，当我尝试在启动时从服务器直接插入同一个对象时，它工作正常，没有问题。什么可能导致该方法的问题？

整个错误文本是：

TypeError: Cannot read property '_id' of undefined
    at Mongo.Collection.doValidate (http://localhost:3000/packages/aldeed_collection2-core.js?hash=18cc61915c0e22cac3180c5c8c9e0ac91bdd188a:372:33)
    at Mongo.Collection.(anonymous function) [as insert] (http://localhost:3000/packages/aldeed_collection2-core.js?hash=18cc61915c0e22cac3180c5c8c9e0ac91bdd188a:259:25)
    at DDPCommon.MethodInvocation.run (http://localhost:3000/app/app.js?hash=b893ac14f5773e1f67641becf8b78b71756ca168:948:16)
    at ValidatedMethod._execute (http://localhost:3000/packages/mdg_validated-method.js?hash=0d0a63069b7327e1e04768f607f0db947dfe949d:130:45)
    at DDPCommon.MethodInvocation.ValidatedMethod.connection.methods._connection$methods.(anonymous function) (http://localhost:3000/packages/mdg_validated-method.js?hash=0d0a63069b7327e1e04768f607f0db947dfe949d:90:21)
    at http://localhost:3000/packages/ddp-client.js?hash=df770fd9a6a02fd730939b97d266ea2b12938e95:4088:25
    at Meteor.EnvironmentVariable.EVp.withValue (http://localhost:3000/packages/meteor.js?hash=6d285d84547b3dad9717a7c89c664b61b45ea3d8:1090:15)
    at Connection.apply (http://localhost:3000/packages/ddp-client.js?hash=df770fd9a6a02fd730939b97d266ea2b12938e95:4079:60)
    at ValidatedMethod.call (http://localhost:3000/packages/mdg_validated-method.js?hash=0d0a63069b7327e1e04768f607f0db947dfe949d:103:32)
    at MapComponent.newEventSubmitted (http://localhost:3000/app/app.js?hash=b893ac14f5773e1f67641becf8b78b71756ca168:415:28)

Answer 1

通过Buzz Moschetti的提示，弄清楚答案是什么！该方法在newEvent周围有一个斜角括号，它本身已经是一个对象，因此该文档在前往集合的途中迷失了。

Meteor：“从客户端调用Insert Method时，无法读取未定义的属性'_id'

1 个答案: