Question

我有两个要以“用户”和“工人”身份登录的组件。它们的数据在两个集合名称中分别是“用户”，“工人”。这是我的“用户登录”功能。

const browser = await puppeteer.launch({
        headless: false,
        executablePath: "path/to/brave",
        userDataDir: "path/to/profile/dir"
});

所以在这个功能中我可以使用'workers'收集数据登录，这意味着'Worker'可以使用'User login'组件登录。那么如何解决呢？请帮助我。

这是我的“工作人员登录”功能

SignIn(email, password) {
    this.value = this.afs.collection( 'users'  , ref =>
      ref.where('email', '==', email)
    ).valueChanges();
    this.value.subscribe(data => {
      this.datas = data;
      console.log(this.datas )
        return this.afAuth.auth.signInWithEmailAndPassword(email, password).then((result) => {
          this.ngZone.run(() => {
            this.router.navigate(['home']);
          });
        }).catch((error) => {
          window.alert(error);
          this.router.navigateByUrl('signinu');
        })
    });
  }

Answer 1

在登录页面中，创建一个下拉菜单，用户可以在其中选择自己是<!DOCTYPE html> <html lang='en'> <head> <meta charset='utf-8'> <style></style> </head> <body> <article> <pre> I am the egg man They are the egg men I am the walrus Goo goo g'joob </pre> </article> <script> /*! * Convert a given elements (1st param - selector) text into an <a>nchor tag * that when clicked, will jump to translate.google.com site and translates the * text within the <a>nchor to a given language (3rd param - langB). ** * @param {String} selector The reference of the element (aka tag) to convert. * @param {String} langA The original language text is in. * @param {String} langB The language to which the text will be translated to. ** * @return {Object} The new DOM Object/tag. */ /* Pass the selector string of target tag, the current language as a two letter abbreviation, and the two letter abbreviation of the language that the text will be translated to */ const transLink = (selector, langA, langB) => { // Reference the target tag const tag = document.querySelector(selector); // Get the text of tag and encode it. let encoded = encodeURIComponent(tag.textContent); // Interpolate values into a template literal of the new URI const uri = `https://translate.google.com/?hl=en&op=translate&sl=${langA}&tl=${langB}&text=${encoded}`; // Interpolate values into a template literal of the new <a>nchor const link = `<a href="${uri}" target='_blank'>${decodeURIComponent(encoded)}</a>`; // Make a Range Object to facilitate selection of tag content let range = document.createRange(); // Select all content within tag range.selectNodeContents(tag); // Delete the content range.deleteContents(); // Prepend and render the htmlString "link" tag.insertAdjacentHTML('afterbegin', link); // return tag return tag; } /* Find the first <pre> then covert its contents from English text into a link with Spanish text */ console.log(transLink('pre', 'en', 'es')); </script> </body> </html>还是user，然后在worker方法中添加另一个名为{{1 }}：

signin

然后检查类型是否等于type，然后使用集合SignIn(email, password, type)；否则，如果类型等于user，则使用集合user。检索时，您已经在使用worker来查询电子邮件在worker集合或where集合中是否存在。如果用户是user，并且他们单击了worker，则由于您正在执行查询以检查电子邮件，因此不会检索到任何内容，并且可以显示警报。

如何在Firebase中读取特定集合？

1 个答案: