Javascript 使用AJAX调用忽略Forn验证_Javascript_Jquery_Ajax_Forms

Javascript 使用AJAX调用忽略Forn验证

javascript jquery ajax forms

Javascript 使用AJAX调用忽略Forn验证,javascript,jquery,ajax,forms,Javascript,Jquery,Ajax,Forms,我有一个表单，它使用AJAX调用将信息提交到googlesheets，除了我尝试添加表单验证时，它工作正常。然后它只是运行AJAX调用以下是我的HTML表单： <!DOCTYPE html> <html class="no-js" lang="en"> <head> <title>MooWoos Stall Booking</title> <meta http-equiv="x-ua-compatible" co

我有一个表单，它使用AJAX调用将信息提交到googlesheets，除了我尝试添加表单验证时，它工作正常。然后它只是运行AJAX调用

以下是我的HTML表单：

<!DOCTYPE html>
<html class="no-js" lang="en">
<head>
    <title>MooWoos Stall Booking</title>
    <meta http-equiv="x-ua-compatible" content="ie=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1.0" />

    <link rel="stylesheet" href="https://fonts.googleapis.com/css?family=Raleway:400,800">
    <link rel='stylesheet' href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">

    <!--build:css css/styles.min.css-->
        <link rel="stylesheet" href="/css/bootstrap.css">
        <link rel="stylesheet" href="/css/style.css">
    <!--endbuild-->

</head>

<body>
<!-- Page Content -->
<div class="container">
    <nav class="navbar navbar-toggleable-md navbar-light">
        <a class="logo"><img src="assets/logo_opt.png"></a>
    </nav>

    <hr>

    <div class="modal fade" id="redirect_page" role="dialog">
        <div class="modal-dialog">
            <div class="modal-content">
                <div class="form-horizontal">

                    <div class="modal-body">
                        <button type="button" class="close" data-dismiss="modal" aria-label="Close"><span aria-hidden="true">&times;</span></button>
                        <div id="user_msg" align="left">Booking successful! Redirecting to PayPal... </div>
                    </div>

                </div>
            </div>
        </div>
    </div>

    <div class="row">
        <div class="col-md-6 col-md-offset-3 bookingform">
            <h1>Stall Booking Form</h1>
            <p class="lead">
                Fill out the form to book and pay for your stall!
            </p>
            <form id="bookingForm">
                <div class="form-group">
                    <label for="name">Name: </label>
                    <input type="text" name="name" class="form-control" placeholder="Your Name" value="" title="Please enter your name" required/>
                </div>
                <div class="form-group">
                    <label for="address">Address: </label>
                    <textarea name="address" class="form-control" placeholder="Your Address" value="" title="Please enter your address"></textarea>
                </div>
                <div class="form-group">
                    <label for="phone">Telephone Number: </label>
                    <input type="text" name="phone" class="form-control" placeholder="Your Telephone Number" value="" title="Please enter the best telephone number to contact you on"/>
                </div>
                <div class="form-group">
                    <label for="email">Email: </label>
                    <input type="text" name="email" class="form-control" placeholder="Your Email" value="" title="Please enter your Email address"/>
                </div>
                <div class="form-group">
                    <label for="date">Which date would you like to book?: </label>
                    <p><input type="radio" name="date" value="13th September" /> Sunday 13th September</p>
                    <p><input type="radio" name="date" value="6th February" /> Saturday 6th February</p>
                </div>
                <div class="form-group">
                    <label>What type of stall do you require?</label>
                    <div>
                        <input type="radio" name="stallType" id="stallType-Preloved" value="Preloved">
                        <label for="stallType-Preloved">Preloved</label>
                        <div class="reveal-if-active">
                            <label for="c-rail">Will you be bringing a clothes rail?: </label>
                            <input type="radio" name="c-rail" value="Yes" /> Yes
                            <input type="radio" name="c-rail" value="No" /> No
                        </div>
                    </div>
                    <div>
                        <input type="radio" name="stallType" id="stallType-Craft" value="Craft">
                        <label for="stallType-Craft">Craft</label>
                        <div class="reveal-if-active">
                            <label for="craftName">What name do you use?</label>
                            <input type="text" id="craftName" name="craftName" class="require-if-active" placeholder="Craft Name" title="Please provide us with your Craft name" value="" />
                        </div>
                    </div>
                    <div>
                        <input type="radio" name="stallType" id="stallType-Business" value="Business">
                        <label for="stallType-Business">Business</label>
                        <div class="reveal-if-active">
                            <label for="bizName">What is your business name?</label>
                            <input type="text" id="bizName" name="bizName" class="require-if-active" placeholder="Business Name" title="Please provide us with your Business name" value="" />
                            <label for="insurance">Do you have Public Liability Insurance?</label>
                            <input type="radio" id="insurance" name="insurance" class="require-if-active" data-require-pair="#stallType-Business" title="We will require proof of this prior to market day" value="Yes"/> Yes
                            <input type="radio" id="insurance" name="insurance" class="require-if-active" data-require-pair="#stallType-Business" title="Our insurance does not cover other businesses. Please ensure you have adequate cover and provide us with proof prior to market day" value="No"/> No
                        </div>
                    </div>
                </div>
                <input type="button" id="submit-form" class="btn btn-success btn-lg" value="Book & Pay" />
            </form>

        </div>

    </div>
    <!-- /.row -->

    <hr>

    <!-- Footer -->
    <footer>
        <div class="row">
            <div class="col-lg-12">
                <p>Copyright &copy; MooWoos 2018. Website by Luke Brewerton</p>
            </div>
        </div>
        <!-- /.row -->
    </footer>

</div>
<!-- /.container -->

<!--build:js js/mwbookings-min.js -->
<script src="js/jquery.min.js"></script>
<script src="js/tether.min.js"></script>
<script src="js/bootstrap.min.js"></script>
<script src="js/jquery.serialize-object.min.js"></script>
<script src="js/main.js"></script>
<!-- endbuild -->

</body>
</html>

我有一种隐秘的感觉，在AJAX调用之前，我需要在submit函数中执行表单验证，但我对使用JS来执行此操作还不熟悉，以前我都是使用PHP来完成的。

主要问题是，您没有在任何地方调用

validateForm（）

函数。您需要在提交表单之前调用该函数以检查其有效性

var $form = $('form#bookingForm'),
url = 'https://script.google.com/macros/s/AKfycbwaEsXX1iK8nNkkvL57WCYHJCtMAbXlfSpSn3rsJj2spRi-41Y/exec'

function validateForm() {
var errorMessage="";
var name=document.forms["bookingForm"]["name"].value;
if (name==null ||name==""){
    errorMessage = "Your Name is required.\
    ";
return true;
}

if (errorMessage !=""){
    alert(errorMessage);
    return false;
}
}

$('#submit-form').on('click', function(e) {
//e.preventDefault();

var res = validateForm();
if(res != false) {

var jqxhr = $.ajax({
    url: url,
    method: "GET",
    dataType: "json",
    data: $form.serializeObject(),
    success: function () {
        $('#redirect_page').modal('show');
        window.setTimeout(function(){location.reload()},3000);
    }
});
} else {
//handle else condition however u want
}
});

出于可访问性的原因，您还应该在表单中使用

type=“submit”

按钮。这还允许用户在字段处于焦点时按return键提交表单。然后，您可以钩住

submit

事件来处理表单提交。试试这个：

<form id="bookingForm">
  <!-- form fields... -->

  <input type="submit" id="submit-form" class="btn btn-success btn-lg" value="Book & Pay" />
</form>

但是，您应该注意，在大多数浏览器中，

required

属性将为您实现此逻辑，而无需任何JS干预。

您不是在任何地方调用

validateForm（）

。。？当您所做的只是在页面完成时刷新页面时，发送AJAX请求似乎也毫无意义？在submit函数中？这将是最有意义的。只需确保在发送AJAX之前检查函数调用的响应，这很有意义。我会的！它目前正在重新加载，因为当我到达该点时，它将重定向到PayPal，我在编写AJAX调用时进行了刷新，因此我不必每次提交表单时都手动重新加载。啊，好的。我将为您添加一个答案，因为一般来说，您可以做一些事情来改进代码。这实际上是一个注释，而不是答案。再重复一点，。谢谢你编辑它，但是一些关于问题是什么以及为什么你的代码有助于指导OP未来发生的事情的描述。谢谢。当然我会提供一些关于未来答案的描述。@Kiran你的答案没有对你所做的解释，为什么它会工作以及操作代码中的问题是什么。请编辑并显示解释。我确实尝试过使用HTML5的required属性，但似乎没有效果

<form id="bookingForm">
  <!-- form fields... -->

  <input type="submit" id="submit-form" class="btn btn-success btn-lg" value="Book & Pay" />
</form>