隐式异步自定义验证器（带有 2 个参数的自定义验证器）在 mongoose >= 4.9.0 中被弃用

Question

我正在使用猫鼬 4.9.0。虽然下面的代码有效，但我收到如下警告：

(node:24769) DeprecationWarning: Implicit async custom validators (custom validators that take 2 arguments) are deprecated in mongoose >= 4.9.0. See http://mongoosejs.com/docs/validation.html#async-custom-validators for more info.

我怀疑错误来自模型验证器。

const mongoose = require('mongoose');
const isEmail = require('validator/lib/isEmail');

const Schema = mongoose.Schema;

const userSchema = new Schema({
  email: {
    type: String,
    unique: true,
    required: true,
    validate: [{ validator: isEmail, msg: 'Invalid email.' }],
  },
});

module.exports = mongoose.model('User', userSchema);

我似乎拥有的唯一自定义验证器是 validator 库中的 isEmail，它给出了一个字符串值 returns 是否有效。

Answer 1

您的自定义验证器中存在一个偷偷摸摸的错误。

isEmail function from the validator 库有两个参数，尽管第二个参数是完全可选的。

isEmail(str [, options])

您可以通过在其上创建一个函数来防止 mongoose 看到它：

validate: [{ validator: value => isEmail(value), msg: 'Invalid email.' }]

Answer 2

//add validator to user model schema 

var validator = require('validator');

validate:{
       validator: (value)=>{

         return validator.isEmail(value);  

       },

       message:'{VALUE} is not a valid Email'

  },

Answer 3

只需复制以下代码即可正常运行

email: {
    type: String,
    required : true,
    lowercase : true,
    unique:true,
    validate: { 
    validator:function validateEmail(email) {
    var re = /^(([^<>()\[\]\.,;:\s@"]+(\.[^<>()\[\]\.,;:\s@"]+)*)|(".+"))@((\[[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}\.[0-9]{1,3}])|(([a-zA-Z\-0-9]+\.)+[a-zA-Z]{2,}))$/;
    return re.test(email);
},   message: '{email} Invalid' 
     }
  }

Answer 4

问题

import validate from 'mongoose-validator'

[...]
    email: {
      type: String,
      validate: validate({
        validator: 'isEmail',
        message: 'is not valid',
      })
    }
[...]

解决方案

import validate from 'mongoose-validator'

const isEmail = validate.validatorjs.isEmail

[...]
    email: {
      type: String,
      validate: {
        validator: value => isEmail(value),
        message: 'is not valid'
      }
    }
[...]

Answer 5

根据 mongoose 文档，您可以通过将验证器的 isAsync 属性设置为 false 来消除警告。 Mongoose 假设所有接受两个参数的函数都是异步的

validate: [{ isAsync:false, validator: isEmail, msg: 'Invalid email.' }]

http://mongoosejs.com/docs/validation.html#async-custom-validators

Answer 6

  var validator = require('validator');
   validate: {
        validator: (value) => validator.isEmail(value),
        message: "{VALUE} is not a valid email"
    }

隐式异步自定义验证器（带有 2 个参数的自定义验证器）在 mongoose >= 4.9.0 中被弃用

Implicit async custom validators (custom validators that take 2 arguments) are deprecated in mongoose >= 4.9.0

mongoose

node.js

validator.js