[英]Prevent AJAX form from submitting twice?
我無法弄清楚為什么這個AJAX表單正在處理並發送兩次電子郵件。 代碼中是否存在某種明顯的hickup,你可以看到導致這種情況發生?
HTML
<form class="submit-form" method="post">
<input type="url" class="content-link" name="content_link" placeholder="Link" />
<input type="email" class="email" name="email" placeholder="Your Email Address" />
<button class="submit-modal-button submit-button"><span>Send<span class="ss-icon">send</span></span></button>
<p class="terms">By clicking Submit you agree to our <a href="<?php echo home_url('terms-of-use'); ?>">Terms & Conditions</a></p>
</form>
JavaScript的
processSubmitModal : function () {
var form = $('.submit-form'),
content_link = $('.submit-form input[type="url"]'),
email = $('.submit-form input[type="email"]'),
viewport_size = $(window).width() + "x" + $(window).height(),
user_browser = BrowserDetect.browser,
user_os = BrowserDetect.OS,
current_page = document.location.href;
$('.submit-form input[type="url"],.submit-form input[type="email"]').blur(function () {
if ($.trim($(this).val()) == '') {
$(this).addClass('form-validation-error');
return false;
} else {
$(this).removeClass('form-validation-error');
}
});
form.submit(function () {
if ($.trim(content_link.val()) == '' && $.trim(email.val()) == '') {
content_link.addClass('form-validation-error');
email.addClass('form-validation-error');
return false;
}
else if ($.trim(content_link.val()) == '') {
content_link.addClass('form-validation-error');
return false;
}
else if ($.trim(email.val()) == '') {
email.addClass('form-validation-error');
return false;
} else {
var env = TTB.getEnvironment();
$('.submit-modal-button').attr('disabled','disabled');
$(document).ajaxStart(function () {
$('.submit-modal .screen-1').delay(300).append('<span class="loading2"></span>');
});
$.ajax({
url: env.submit_modal_process,
type: 'POST',
data: {
content_link: content_link.val(),
email: email.val(),
viewportsize: viewport_size,
browser: user_browser,
os: user_os,
current_page: current_page
},
success: function () {
$('.submit-modal .screen-1').delay(1000).fadeOut(300, function () {
$('.submit-modal .screen-1').fadeOut(500, function () {
$('span.loading2').detach();
$('.submit-modal .screen-2').fadeIn(500, function () {
$('.submit-modal .screen-2').append('<img class="carlton" src=' + env.the_environment + TTB.config.image_path() + 'submit-modal-success.gif' + ' />');
});
$('.submit-modal .screen-2').css('display','block').delay(4200).fadeOut(500, function () {
$('.carlton').hide();
$('.submit-modal .screen-1').fadeIn(500);
content_link.val('');
email.val('');
content_link.focus();
email.removeClass('form-validation-error');
$('.submit-modal-button').removeAttr('disabled');
});
});
});
}
});
return false;
}
});
}
EXAMPLE.processSubmitModal();
試試這樣吧
form.submit(function (event) {
if(event.handled !== true)
{
//put your ajax code
event.handled = true;
}
return false;
});
如果要從您的代碼段中刪除與問題代碼無關的所有內容,我們將獲得以下內容:
HTML
<form class="submit-form" method="post">
<input type="url" name="content_link" />
<input type="email" name="email" />
<button>Send</button>
</form>
JavaScript的
$(function() {
var EXAMPLE = {
processSubmitModal : function () {
var form = $('.submit-form'),
content_link = $('.submit-form input[type="url"]'),
email = $('.submit-form input[type="email"]');
form.submit(function () {
$.ajax({
url: document.location.href,
type: 'POST',
data: {
content_link: content_link.val(),
email: email.val()
},
success: function () { // <-- The function that is executed twice
// Do something
}
});
return false;
});
}
};
EXAMPLE.processSubmitModal();
// And somewhere in the code that was not presented in snippet...
EXAMPLE.processSubmitModal();
});
我玩了你的代碼片段,除了唯一的情況外,它總是只執行一次AJAX調用並處理一次email
- 當你在代碼中的某處再次調用EXAMPLE.processSubmitModal()
時。 在你的代碼中搜索,我幾乎可以肯定這是原因。 請注意,每次調用EXAMPLE.processSubmitModal()
,都要添加另一個處理程序來submit
表單事件而不是覆蓋它。
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