javascript - 如何知道knockout validation中哪个字段无效？

Question

我有一个相当大的 knockout 模型，我想验证其中的所有嵌套模型:

self.errors = ko.validation.group(self, { deep: true });

验证器发现错误:

> self.errors()
["This field is required."]

我不知道我的巨大模型的哪个字段是无效的。我怎样才能找到它？

Answer 1

我猜你应该在找这样的东西

// Getting errors
var errors = ko.validation.group(this, {
    deep: true,
    observable: false
});

// New method: getting extended details
var details = errors.getDetails();

for (var i = 0; i < details.length; i++) {
    var d = details[i];

    /*
        Every element contains the following fields:

        "observable" - a reference to the target observable.
        "error" - the error message.
        "rule" - the name of the failed validation rule.
        "data" - an object that contains extension data (provided via "extend" method) for every rule. E.g. "data.required == true".
    */
}

PS:您需要在验证文件中添加几行以使 getDetails() 正常工作，即您拥有的验证脚本文件中可能不存在。(检查引用链接&校验码)

引用 Here归功于 volpav，它帮助了我很久。

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