在jquery.validate.unobtrusive中覆盖ErrorPlacement函数的正确方法是什么？

查看jquery.validate.unobtrusive.js脚本,看起来开发人员的意图是允许您通过设置$jQval.unobtrusive.options来应用自己的ErrorPlacement函数.

在定义errorPlacement函数的validationInfo(form)函数中,我们看到对execInContext(“errorPlacement”,arguments)的调用.

看来如果我们在$.validator.unobtrusive.options下创建一个errorPlacement函数,那么就会调用它.

   $.validator.unobtrusive.options = {
        errorPlacement: function () {
            console.log("hello");
        }
    };

问题是必须在jquery.validate.js之后和引用jquery.validate.unobtrusive.js之前配置它.否则$jQval.unobtrusive.options为null,并且不会再次设置$form.data(data_validation,result).

    function validationInfo(form) {
    var $form = $(form),result = $form.data(data_validation),onResetProxy = $.proxy(onReset,form),defaultOptions = $jQval.unobtrusive.options || {},execInContext = function (name,args) {
            var func = defaultOptions[name];
            func && $.isFunction(func) && func.apply(form,args);
        }

    if (!result) {
        result = {
            options: {  // options structure passed to jQuery Validate's validate() method
                errorClass: defaultOptions.errorClass || "input-validation-error",errorElement: defaultOptions.errorElement || "span",errorPlacement: function () {
                    onError.apply(form,arguments);
                    execInContext("errorPlacement",arguments);
                },invalidHandler: function () {
                    onErrors.apply(form,arguments);
                    execInContext("invalidHandler",messages: {},rules: {},success: function () {
                    onSuccess.apply(form,arguments);
                    execInContext("success",arguments);
                }
            },attachValidation: function () {
                $form
                    .off("reset." + data_validation,onResetProxy)
                    .on("reset." + data_validation,onResetProxy)
                    .validate(this.options);
            },validate: function () {  // a validation function that is called by unobtrusive Ajax
                $form.validate();
                return $form.valid();
            }
        };
        $form.data(data_validation,result);
    }

    return result;
}

解决这个问题的另一种方法是

>设置$.validator.unobtrusive.options错误放置功能
>删除Unobtrusive验证
>重新应用不显眼的验证

$.validator.unobtrusive.options = {
    errorPlacement: function () {
        console.log("errorPlacement");
    }
};


$("#form_selector").removeData("unobtrusiveValidation");

// reapply the form's validator
$.validator.unobtrusive.parse(document);

或者另一种选择是覆盖函数调用.

var validator = $("#form_selector").data('validator');
var originalFunction = validator.settings.errorPlacement;
validator.settings.errorPlacement = function(error,element) {
    console.log("errorPlacement");
    originalFunction(error,element);
};

哪个是实现自己的errorPlacement方法的正确方法？