jquery - Django-ajax-验证: Validate form fields on click of specified button with ajax

Question

我已经成功获得Django-ajax-validation (版本 1.3)通过设置 focusout 在我的项目中工作模板脚本中的事件与我的表单如下:

$('#ajax_validated_form').validate('{% url contact_form_validate %}', {type: 'ul', event: 'focusout'});

每次我将焦点移出表单的任何输入字段(单击输入后单击其他内容)时，都会通过ajax验证表单的每个字段。

但是，我只想在单击 <button id="ajax_submit">Ajax submit</button> 时进行验证元素。

所以我尝试了以下方法:

$('#ajax_validated_form').validate('{% url validate_entity %}', {type: 'ul', event: $("#ajax_submit").on("click")});

但这行不通。我该怎么做？

Answer 1

我必须通过作为第二个参数传递给验证方法。

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 不一定必须引用 form 元素才能让验证工作，如果表单输入在其中，它也同样有效包含在 div 内!

例如:

<div id="ajax_validated_form">
    {{ ajax_val_form }}
</div>

效果一样好

<form id="ajax_validated_form" action="" method="post">
    {{ ajax_val_form }}
</form>

编辑2:

不要忘记在页面脚本中包含以下内容(来自 django docs ):

    /// 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);
            }
        }
    });
    /////////////////////////////////////////////////////////////////