猫鼬异步模式验证不起作用 [英] Mongoose asynchronous schema validation is not working

问题描述

我有以下代码可验证我的时区"字段:

I have the following code which validates my "timezone" field:

orgSchema.path('timezone').validate(function(value) {
  return Timezone.findOne({_id: value}, "_id", function (err, timezone) { return false; });
}, "Please provide a valid timezone");

即使我在最里面的函数中添加了"return false"，该字段也始终在传递.我知道我在某处缺少回调-非常感谢您的帮助.

The field is always passing, even when I add a "return false" in the innermost function. I know that I am missing a callback somewhere - I would appreciate some help.

推荐答案

一个异步验证器需要接受第二个参数，它是为传递验证的布尔结果而必须调用的回调.

An asynchronous validator needs to accept a second parameter that's the callback it must call to deliver the boolean result of the validation.

orgSchema.path('timezone').validate(function(value, callback) {
  return Timezone.findOne({_id: value}, "_id", function (err, timezone) { 
    callback(timezone != null);
  });
}, "Please provide a valid timezone");

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