Question

我有一个名为＆＃34; User＆＃34;每个用户都有公司类型＆＃34;公司＆＃34;。

我试图对公司阵列进行更改，但我无法访问公司属性，这是我得到的错误：

authentication.service.ts (72,25): Property 'companies' does not exist on type 'User'.)

这是我的用户类：

import { Company } from './company';

export class User {
    constructor(
        public email:string,
        public name:string,
        public token:string,
        public companies: Company[]
    ){
}

这是我公司的课程：

export class Company {
    constructor(
        public id:number,
        public name:string,
        public is_active:boolean
    ){}
}

我首先在下面的AuthService上设置用户，然后在使用＆＃34; updateCompany＆＃34;时收到错误。功能

import { Injectable } from '@angular/core';
import { User } from "../_models/user";
import { Observable } from 'rxjs/Rx';
import { Http, Headers, Response } from '@angular/http';
import { Router } from "@angular/router";
import 'rxjs/add/operator/map';

@Injectable()
export class AuthenticationService {
  private user: User;

  constructor(private http: Http,private router:Router) {
    // set token if saved in local storage
    var currentUser = JSON.parse(localStorage.getItem('currentUser'));
    this.user = currentUser;
  }

    login(email:string,password:string): Observable<boolean> {
        const body = JSON.stringify({ email: email, password: password });
        const headers = new Headers({
         'Content-Type' : 'application/json'
        });

        return this.http.post("http://localhost:8000/api/v1/user/signin",body,{headers:headers})
            .map(
            (response: Response) => {
                // login successful if there's a token in the response
                let token = response.json() && response.json().token;
                if(token){

                    // store username and jwt token in local storage to keep user logged in between page refreshes
                    localStorage.setItem('currentUser', JSON.stringify(response.json()));

                    // set user object
                    this.user = JSON.parse(localStorage.getItem('currentUser'));
                    // return true to indicate successful login
                    return true;
                } else {
                    // return false to indicate failed login
                    return false;
                }
                //return response.json();
            }
          );
    }

    getUser(){
        return this.user;
    }

    updateCompany(company_id){
        console.log(this.user.companies);
    }

}

更新：这就是我如何调用updateCompany：

import { Component, OnInit } from '@angular/core';
import { AuthenticationService } from '../../../../_services/index';
import { User } from "../../../../_models/user";

@Component({
  selector: 'app-header',
  templateUrl: './header.component.html',
  styleUrls: ['./header.component.css']
})
export class HeaderComponent implements OnInit {
  private user: User;

  constructor(
        private authenticationService: AuthenticationService
  ) { }

  ngOnInit() {
    this.user = this.authenticationService.getUser();
  }

  changeCompany(company_id){
    this.authenticationService.updateCompany(company_id);
  }

  onLogout(){
    this.authenticationService.logout();
  }
}

Angular2问题访问对象的属性

0 个答案: