尝试使用 mongodb 创建登录

Question

我正在尝试检查用户在登录表单中输入的详细信息是否与 mongodb 数据 egemail 和密码匹配。但是此功能不起作用。 当用户输入正确的信息时，它应该将他们引导到主页。

const logindetails = new Vue({
  el: '#logindetails',
  data: {
    errors: [],
    email: "",
    passwordInput: ""
  },

  methods: {
    login: function () {
      var account = db.collection('users')(userdetails.email === userdetails.email &&
        userdetails.passwordInput === userdetails.password) ? userdetails : null;
    });

if (account) {
  window.location.href = "welcomepage.html?email=" + account.email;
} else {
  alert("Email/Password has not been identified.");
     }
   }
  }
 });

Answer 1

在尝试重新格式化您的问题以删除 HTML 时，我注意到您有几个不匹配的括号。

你有一个额外的行}); 在阻止您的login功能进入if语句的代码中。

正确的缩进可以帮助您发现这样的错误。

这是已删除行的更正代码。

const logindetails = new Vue({
  el: '#logindetails',
  data: {
    errors: [],
    email: "",
    passwordInput: ""
  },

  methods: {
    login: function () {
      var account = db.collection('users')(userdetails.email === userdetails.email &&
        userdetails.passwordInput === userdetails.password) ? userdetails : null;
      if (account) {
        window.location.href = "welcomepage.html?email=" + account.email;
      } else {
        alert("Email/Password has not been identified.");
      }
    }
  }
});

这是原始代码，问题行旁边有注释

const logindetails = new Vue({
  el: '#logindetails',
  data: {
    errors: [],
    email: "",
    passwordInput: ""
  },

  methods: {
    login: function () {
      var account = db.collection('users')(userdetails.email === userdetails.email &&
        userdetails.passwordInput === userdetails.password) ? userdetails : null;
    });  //<-- looks wrong, stops 'login' function


if (account) {
  window.location.href = "welcomepage.html?email=" + account.email;
} else {
  alert("Email/Password has not been identified.");
}
    }
}
});