jQuery验证:提交之前在验证之后删除元素?

问题描述：

我有一个城市的SVG地图，当单击该地图时，会在我的表单中的div中创建隐藏的元素.

I have a SVG map of a city that when clicked, creates hidden elements in a div in my form.

我正在使用 jQuery验证插件来验证我的表单.

I'm using the jQuery Validation Plugin to validate my form.

为了确保用户单击了地图的某个区域，我想在普通隐藏元素所在的位置内创建一个虚拟隐藏元素，并在其上放置验证规则.我编写了自己的验证规则，以检查隐藏元素的数量(指示用户单击了地图上的某个位置).那条规则是这样的:

In order to make sure that the user has clicked on an area of the map, I thought to create a dummy hidden element inside where the normal hidden elements are and put the validation rule on that. I wrote my own validation rule to check for the number of hidden elements (indicating that a user has clicked somewhere on the map). That rule is this:

$.validator.methods.zones = function (value, element, param) {
   return ($('#search_form #zone-selectors input').length > 1); // 1 instead of 0 to account for the dummy element
};

<div id="zone-selectors">
  <input type="hidden" name="dummy">
</div>

但是，我不能将该伪元素与表单的其余部分一起提交；我需要在表单经过验证之后但在提交表单之前将其删除.自然，我想对validate()使用submitHandler选项:

However, I cannot allow that dummy element to be submitted with the rest of the form; I need to remove it AFTER the form has been validated but BEFORE the form is submitted. Naturally, I thought to use the submitHandler option for validate():

// ...
submitHandler: function(form) {
   $(form).find('input[name=dummy]').remove();
   $(form).submit();
},
// ...

...但是这似乎会造成无限循环，并且我的浏览器使脚本超时.我在做什么错了?

... but this seems to create an infinite loop, and my browser times-out the script. What am I doing wrong?

答

submitHandler需要进行调整，如下所示:

The submitHandler needs a tweak, like this:

submitHandler: function(form) {
   $(form).find('input[name=dummy]').remove();
   form.submit();
}

调用jQuery .submit() 触发器会再次导致验证，并且无限循环...您要在此处调用本机 .submit() 函数.

Calling the jQuery .submit() trigger causes validation again, and an infinite loop...you want to call the native .submit() function here.

jQuery验证:提交之前在验证之后删除元素?

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