使用ThreadLocal与Atomic(Using ThreadLocal vs Atomic)

 我必须通过作为第二个参数传递给validate方法的对象中的dom键（ dom: $("#ajax_submit") ）的值来指定我想要将事件耦合到的元素。 
 
 所以我需要的是以下内容： 
 
$('#ajax_validated_form').validate('{% url validate_entity %}', {type: 'ul', dom: $("#ajax_submit"), event: "click"});
 
 编辑： 
 
 还要知道#ajax_validated_form不一定要引用form元素来让验证工作，如果表单输入div中包含的内容，它也可以正常工作！ 
 
 例如： 
 
<div id="ajax_validated_form">
    {{ ajax_val_form }}
</div>
 
 同样有效 
 
<form id="ajax_validated_form" action="" method="post">
    {{ ajax_val_form }}
</form>
 
 编辑2： 
 
 不要忘记在页面的脚本中包含以下内容（来自django文档 ）： 
 
    /// To enable Ajax calls with csrf_token protection ///////////////////
    function getCookie(name) {
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
    var csrftoken = getCookie('csrftoken');

    function csrfSafeMethod(method) {
        // these HTTP methods do not require CSRF protection
        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
    }
    function sameOrigin(url) {
        // test that a given url is a same-origin URL
        // url could be relative or scheme relative or absolute
        var host = document.location.host; // host + port
        var protocol = document.location.protocol;
        var sr_origin = '//' + host;
        var origin = protocol + sr_origin;
        // Allow absolute or scheme relative URLs to same origin
        return (url == origin || url.slice(0, origin.length + 1) == origin + '/') ||
            (url == sr_origin || url.slice(0, sr_origin.length + 1) == sr_origin + '/') ||
            // or any other URL that isn't scheme relative or absolute i.e relative.
            !(/^(\/\/|http:|https:).*/.test(url));
    }
    $.ajaxSetup({
        beforeSend: function(xhr, settings) {
            if (!csrfSafeMethod(settings.type) && sameOrigin(settings.url)) {
                // Send the token to same-origin, relative URLs only.
                // Send the token only if the method warrants CSRF protection
                // Using the CSRFToken value acquired earlier
                xhr.setRequestHeader("X-CSRFToken", csrftoken);
            }
        }
    });
    /////////////////////////////////////////////////////////////////

I had to specify the element I wanted to couple the event to via the value of the dom key (dom: $("#ajax_submit")) in the object passed as second argument to the validate method.
 
So what I needed was the following:
 
$('#ajax_validated_form').validate('{% url validate_entity %}', {type: 'ul', dom: $("#ajax_submit"), event: "click"});
 
Edit:
 
Also know that the #ajax_validated_form doesn't necessarily have to refer to a form element to let the validation work, it works just as well if the form inputs where contained inside a div!
 
E.g.:
 
<div id="ajax_validated_form">
    {{ ajax_val_form }}
</div>
 
works just as well as
 
<form id="ajax_validated_form" action="" method="post">
    {{ ajax_val_form }}
</form>
 
Edit 2:
 
Don't forget to include the following (from the django docs) in the script of your page:
 
    /// To enable Ajax calls with csrf_token protection ///////////////////
    function getCookie(name) {
        var cookieValue = null;
        if (document.cookie && document.cookie != '') {
            var cookies = document.cookie.split(';');
            for (var i = 0; i < cookies.length; i++) {
                var cookie = jQuery.trim(cookies[i]);
                // Does this cookie string begin with the name we want?
                if (cookie.substring(0, name.length + 1) == (name + '=')) {
                    cookieValue = decodeURIComponent(cookie.substring(name.length + 1));
                    break;
                }
            }
        }
        return cookieValue;
    }
    var csrftoken = getCookie('csrftoken');

    function csrfSafeMethod(method) {
        // these HTTP methods do not require CSRF protection
        return (/^(GET|HEAD|OPTIONS|TRACE)$/.test(method));
    }
    function sameOrigin(url) {
        // test that a given url is a same-origin URL
        // url could be relative or scheme relative or absolute
        var host = document.location.host; // host + port
        var protocol = document.location.protocol;
        var sr_origin = '//' + host;
        var origin = protocol + sr_origin;
        // Allow absolute or scheme relative URLs to same origin
        return (url == origin || url.slice(0, origin.length + 1) == origin + '/') ||
            (url == sr_origin || url.slice(0, sr_origin.length + 1) == sr_origin + '/') ||
            // or any other URL that isn't scheme relative or absolute i.e relative.
            !(/^(\/\/|http:|https:).*/.test(url));
    }
    $.ajaxSetup({
        beforeSend: function(xhr, settings) {
            if (!csrfSafeMethod(settings.type) && sameOrigin(settings.url)) {
                // Send the token to same-origin, relative URLs only.
                // Send the token only if the method warrants CSRF protection
                // Using the CSRFToken value acquired earlier
                xhr.setRequestHeader("X-CSRFToken", csrftoken);
            }
        }
    });
    /////////////////////////////////////////////////////////////////