Question

我知道如何使用电子邮件和密码创建用户，我尝试使用其他属性（用户名，性别，DOB）创建用户。

我在控制台中收到如下错误。

Failed to login!
register.component.ts:62 TypeError: Cannot read property 
'createUserWithEmailAndPassword' of undefined
    at Observable._subscribe (auth.service.ts:95)
    at Observable.push../node_modules/rxjs/_esm5/internal/Observable.js.Observable._trySubscribe (Observable.js:42)
    at Observable.push../node_modules/rxjs/_esm5/internal/Observable.js.Observable.subscribe (Observable.js:28)
    at RegisterComponent.push../src/app/register/register.component.ts.RegisterComponent.singUp (register.component.ts:58)
    at Object.eval [as handleEvent] (RegisterComponent.html:5)
    at handleEvent (core.js:10258)
    at callWithDebugContext (core.js:11351)
    at Object.debugHandleEvent [as handleEvent] (core.js:11054)
    at dispatchEvent (core.js:7717)
    at core.js:8161

在我写Service.ts文件时，下面有我的代码。请帮助我找到错误

import { Injectable } from '@angular/core';
import { Observable } from 'rxjs';
import { AngularFireAuth } from 'angularfire2/auth';
import { HttpHeaders, HttpClient } from '@angular/common/http';
import { environment } from '../../environments/environment';

 @Injectable({
    providedIn: 'root'
 })

export class AuthService {
authService: any;
angularFireAuth: any;
af: any;

constructor(private firebaseAuth: AngularFireAuth,
            private http:HttpClient,
            private afAuth:AngularFireAuth) {

    this.user = firebaseAuth.authState;
    this.af = firebaseAuth.authState;

}

singUp(email: string, username: string, password: string, compassword:string, gender: string, bday: Date, stripeID:string): Observable<any>{
return new Observable( obs => {
  debugger

  this.af.auth.createUserWithEmailAndPassword({
    // Create user
    email: email,
    password: password
    }).then((user) => {
        // User created now create the database user
        debugger
        return this.af.database.object(`/users/${user.uid}`).update({
            name: username,
            gender: gender
        });
    }).then((success) => {
      debugger
        // Success
        console.log(success);

    }).catch((error) => {
      debugger

        // Error
        console.log(error);
    });
  })
 }
}

请帮助我解决此错误

Answer 1

我不知道这是否是Cannot read property 'createUserWithEmailAndPassword' of undefined错误的原因（我不知道角度），但是这样做时您应该得到一个错误：

.then((user) => {
        // User created now create the database user
        debugger
        return this.af.database.object(`/users/${user.uid}`).update({
            name: username,
            gender: gender
        });
    })

事实上，createUserWithEmailAndPassword()方法返回UserCredential，如doc中所述。反过来，UserCredential的{{3}}解释说，它包含一个User对象。

所以您应该这样做：

.then((userCredential) => {
        // User created now create the database user
        debugger
        return this.af.database.object(`/users/${userCredential.user.uid}`).update({
            name: username,
            gender: gender
        });
    })

Answer 2

从构造函数zip中删除实例化并在注册方法中使用var array = ["1-2", "50-100", "0.125-0.25", "100-200"] array.append("1000-2000") let firstDoubleArray = array.map{Double($0.components(separatedBy: "-").first!)!} let sortedArray = zip(array, firstDoubleArray).sorted {$0.1 < $1.1}.map{$0.0} print(sortedArray)。这需要两个参数而不是一个对象：

this.af = firebaseAuth.authState;

也请参考雷诺关于this.firebaseAuth.auth.createUserWithEmailAndPassword()返回类型的答案。因此，根据您的情况，uid位于singUp(email: string, username: string, password: string, gender: string): Observable<any> { return new Observable(obs => { this.firebaseAuth.auth.createUserWithEmailAndPassword( // Create user email, password ).then((user) => { // User created now create the database user return this.af.database.object(`/users/${user.user.uid}`).update({ name: username, gender: gender }); }).then((success) => { // Success console.log(success); }).catch((error) => { // Error console.log(error); }); }); }

中

为什么还要在构造函数中注入createUserWithEmailAndPassword() 2次？

auth.createUser不仅创建用户

2 个答案: