Angular2 UID 作为主键使用 Firebase 数据库 [英] Angular2 UID as primary key using Firebase Database

问题描述

我使用 Firebase 作为身份验证方法和数据库在我的应用中创建了一个注册组件.当我注册一个新用户时，会生成一个密钥，然后我将所有用户信息(包括来自身份验证的 UID)保存在我的数据库中.我想要做的是使用身份验证中的 UID 作为我的主键，而不是 Firebase 生成的键.

Im creating a signup component in my app using Firebase as Auth method and Database. When I register a new user, a key is generated and then I save all the user info including the UID from authentication in my database. What I want to do is to use UID from authentication as my primary key instead of the key generated by Firebase.

这是我的代码:

component.ts

component.ts

  signupUser(user: User) {
    this.firebaseAuth.auth
      .createUserWithEmailAndPassword(user.email, user.password)
      .then(value => {
        console.log('Success!', value);
        this.afdb.list('users').push({
          firstname: user.firstname,
          lastname: user.lastname,
          email: user.email,
          uid: value.uid
        });
      })
      .catch(err => {
        console.log('Something went wrong:',err.message);
      });
  }

Firebase 中的 json

json in Firebase

users {
    -KpgNYJ0adjVyOGJiyBF {
        email: [e-mail]
        firstname: dasdsa
        lastname: dsadsads
        uid: 021oxk8X6rQL6gAfC0UhZpB4vZx2
        }
    }

我想要的

users {
    021oxk8X6rQL6gAfC0UhZpB4vZx2 {
        email: [e-mail]
        firstname: dasdsa
        lastname: dsadsads
        }
    }

一如既往地感谢您的帮助.谢谢.

Your help is deeply appreciated as always. Thanks.

我忘了告诉我使用的是 AngularFire2.

I forgot to tell Im using AngularFire2.

推荐答案

使用 update 而不是 push.push 创建一个新节点和该节点的唯一键.update 更新指定的节点，或者如果它不存在则创建它.

Use update instead of push. push creates a new node and a unique key for that node. While update updates the specified node, or creates it if it doesn't already exist.

signupUser(user: User) {
    this.firebaseAuth.auth.createUserWithEmailAndPassword(user.email, user.password)
    .then(value => {
        console.log('Success!', value);

        let userDetails = {
            firstname: user.firstname,
            lastname: user.lastname,
            email: user.email
        }

        this.afdb.list('users').update(value.uid, userDetails);
    })
    .catch(err => {
        console.log('Something went wrong:',err.message);
    });
}

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