Question

问题：

我正在尝试使用以下方法查询我的前端角度2服务中当前登录的用户：

 UserModel.findById(userID, function (err, user) {

看来这种行为可以从浏览器中获取，如何从我的服务中查询用户？

错误：

使用webpack运行npm run build，然后npm start：

user.js?b9cb:19 Uncaught TypeError: mongoose.model is not a function

这让我在网上搜索错误的含义，并有效地发现mongoose不支持来自客户端的查询？

https://github.com/Automattic/mongoose/issues/4779

CODE：

模型/用户

var mongoose = require('mongoose');
var Schema = mongoose.Schema;
var mongooseUniqueValidator = require('mongoose-unique-validator');

var schema = new Schema({
    firstName: {type: String, required: true},
    lastName: {type: String, required: true},
    password: {type: String, required: true},
    email: {type: String, required: true, unique: true},
    polls: [{type: Schema.Types.ObjectId, ref: 'Poll'}],
    votes: [{
      poll: {type: Schema.Types.ObjectId, ref: 'Poll'},
      choice: {type: Number},
    }],
});

schema.plugin(mongooseUniqueValidator);

module.exports = mongoose.model('User', schema);

client.service

var UserModel = require('../../../models/user');

voted(poll: Poll, userID: string, choice: number) {
          UserModel.findById(userID, function (err, user) {
            var result = "";
            for (var i = 0; i < user.votes.length; i ++) {
              if (user.votes[i].poll == poll.pollId) {
                result = "disabled";
                if (user.votes[i].choice == choice) {
                  result =  "selected";
                }
              }
            }
            return result;
          })
        }

Answer 1

检查Angular2的http模块以发出请求。这是一个GET请求，但我确定如果您愿意，可以提出所有其他请求。

import { Component } from '@angular/core';
import { Http } from '@angular/http';

@Component({
  selector: 'http-app',
  templateUrl: 'your-template.html'
})
class YourComponent {
  constructor(http: Http) {
    http.get('your-endpoint')
      .map(response => response.json())
      .subscribe(json => this.json = json);
  }
}

如何从Angular前端服务查询用户？

1 个答案: