Develop Reference

How to prevent adding double input with onclick button

Hi guys so when I try to add a question and answers this code works. But if I have made 2 questions and want to add a answer it will put an extra "answer" field in BOTH of the question. But ofcourse I only want to add an answer field to the "question" button i clicked on
var question = 0;
function add_question() {
question++;
var allquestions = document.getElementById('all_questions')
var divquestion = document.createElement("div");
divquestion.innerHTML = `
<div id="all_questions">
<div class="form-group">
<label for="question" class="col-form-label">Question `+ question + `:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-question"></i></span></div>
<input type="text" class="form-control" name="question">
</div>
</div>
<div class="form-group mx-5">
<label for="answer" class="col-form-label">answer 1:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
<div class="form-group mx-5">
<label for="title" class="col-form-label">answer 2:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
<div id="all_answers">
</div>
<button type="button" class="btn btn-success m-1" onclick="add_answer()">add answer</button>
<hr>
</div>
`;
allquestions.appendChild(divquestion)
}
var answer = 2;
function add_answer() {
answer++;
var allanswers = document.getElementById('all_answers')
var divanswer = document.createElement("div");
divanswer.innerHTML = `
<div class="form-group mx-5">
<label for="title" class="col-form-label">answer ` + answer + `:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
`;
allanswers.appendChild(divanswer)
}
<div class="modal-body">
<div class="row">
<div class="col">
<form class="form-horizontal" action="functions/postSurveyActions.php" method="POST" enctype="multipart/form-data">
<div class="form-group">
<label for="title" class="col-form-label">Title:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-tags"></i></span></div>
<input type="hidden" name="hiddenSurveyGet"/>
<input type="text" class="form-control" name="title">
</div>
</div>
<div class="form-group">
<label for="description" class="col-form-label">Description:</label>
<textarea type="text" class="form-control" rows="4" name="description"></textarea>
</div>
<div class="list-group" id="myList">
<a class="list-group-item active main-color-bg">Survey:</a>
</div>
<button type="button" class="btn btn-success m-2" onclick="add_question()">add question</button>
<div id="all_questions">
<!-- this is the place where all questions get included with javascript -->
<hr>
</div>
<button type="button" class="btn btn-success m-2 float-right btnAddSurvey">Add survey</button>
</form>
</div>
</div>
</div>
If something is unclear I will try to explain it.
Please dont be to harsh I am pretty new to javascript...

All you needed to do was specify in your questions container an ID for where to put your answers in your add answer function i just used the question increment as an id and added that to the <div id="all_answers_${id}"> id and passed the id in the click function onclick="add_answer(${id})".
var question = 0;
function add_question() {
question++;
var allquestions = document.getElementById('all_questions')
var divquestion = document.createElement("div");
var id = question;
divquestion.innerHTML = `
<div id="all_questions">
<div class="form-group">
<label for="question" class="col-form-label">Question `+ question + `:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-question"></i></span></div>
<input type="text" class="form-control" name="question">
</div>
</div>
<div class="form-group mx-5">
<label for="answer" class="col-form-label">answer 1:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
<div class="form-group mx-5">
<label for="title" class="col-form-label">answer 2:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
<div id="all_answers_${id}">
</div>
<button type="button" class="btn btn-success m-1" onclick="add_answer(${id})">add answer</button>
<hr>
</div>
`;
allquestions.appendChild(divquestion)
}
var answer = 2;
function add_answer(id) {
answer++;
var allanswers = document.getElementById('all_answers_'+id)
var divanswer = document.createElement("div");
divanswer.innerHTML = `
<div class="form-group mx-5">
<label for="title" class="col-form-label">answer ` + answer + `:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-file"></i></span></div>
<input type="text" class="form-control" name="answer">
</div>
</div>
`;
allanswers.appendChild(divanswer)
}
<div class="modal-body">
<div class="row">
<div class="col">
<form class="form-horizontal" action="functions/postSurveyActions.php" method="POST" enctype="multipart/form-data">
<div class="form-group">
<label for="title" class="col-form-label">Title:</label>
<div class="input-group">
<div class="input-group-prepend"><span class="input-group-text"><i class="fas fa-tags"></i></span></div>
<input type="hidden" name="hiddenSurveyGet"/>
<input type="text" class="form-control" name="title">
</div>
</div>
<div class="form-group">
<label for="description" class="col-form-label">Description:</label>
<textarea type="text" class="form-control" rows="4" name="description"></textarea>
</div>
<div class="list-group" id="myList">
<a class="list-group-item active main-color-bg">Survey:</a>
</div>
<button type="button" class="btn btn-success m-2" onclick="add_question()">add question</button>
<div id="all_questions">
<!-- this is the place where all questions get included with javascript -->
<hr>
</div>
<button type="button" class="btn btn-success m-2 float-right btnAddSurvey">Add survey</button>
</form>
</div>
</div>
</div>

Jquery Ajax POST is not getting dynamically added inputs inputs have names and I have tried other solutions

Ajax Post request is only getting the first of the dynamically added input fields at the bottom all others are ignored
I have tried .on() .live() .submit() functions but get the same result. My php file consists of a print_r($_POST); and nothing else this is put into the console.
https://pastebin.com/CuAPSzKe - I have put the full code on the pastebin as the whole table and the script used to add the new inputs is included.
This is the code to make the call:
$('input#submitButton').on('click', function(e) {
e.preventDefault(); // avoid to execute the actual submit of the form.
var form = $('form#orderForm');
var url = form.attr('action');
$.ajax({
type: "POST",
url: url,
data: form.serialize(), // serializes the form's elements.
success: function(data)
{
console.log(data);
}
});
});
My expected result is to be able to post all dynamically added fields with their names as an array, alternatively all dynamically added fields in their own array.

It is having a major issue due to the way your html is arbitrarily structured and you are missing a end div tag for your item information container. Fix these issues and it will run. You also may want to go ahead and start your first item information with a start of 0 and set your counter to 1 so it is easier to aparse on the backend once you recieve the info.
Move your form tag under your first container:
<div class="container">
<form id="orderForm" method="POST" action="test.php">
<h2>Address Information</h2>
End tag
<input type="submit" id="submitButton" name="submitButton" value="Submit">
</div>
</div>
</form>
</div>
Full example of cleaned up code running:
function test() {
var billName = document.getElementById('bill_name');
var shipName = document.getElementById('ship_name');
var billLine1 = document.getElementById('bill_line_1');
var shipLine1 = document.getElementById('ship_line_1');
var billLine2 = document.getElementById('bill_line_2');
var shipLine2 = document.getElementById('ship_line_2');
var billLine3 = document.getElementById('bill_line_3');
var shipLine3 = document.getElementById('ship_line_3');
var billLine4 = document.getElementById('bill_line_4');
var shipLine4 = document.getElementById('ship_line_4');
var billCounty = document.getElementById('bill_county');
var shipCounty = document.getElementById('ship_county');
var billPostcode = document.getElementById('bill_post');
var shipPostcode = document.getElementById('ship_post');
var billTele = document.getElementById('bill_telephone');
var shipTele = document.getElementById('ship_telephone');
var billEmail = document.getElementById('bill_email');
var shipEmail = document.getElementById('ship_email');
shipName.value = billName.value;
shipLine1.value = billLine1.value;
shipLine2.value = billLine2.value;
shipLine3.value = billLine3.value;
shipLine4.value = billLine4.value;
shipCounty.value = billCounty.value;
shipPostcode.value = billPostcode.value;
shipTele.value = billTele.value;
shipEmail.value = billEmail.value;
}
$('input#submitButton').on('click', function(e) {
e.preventDefault(); // avoid to execute the actual submit of the form.
var form = $('form#orderForm');
var url = form.attr('action');
var test = form.serialize();
alert(test);
});
$(document).ready(function () {
var counter = 0;
$("#addrow").on("click", function () {
var newRow = $("<tr>");
var cols = "";
cols += '<td> <input type="text" class="form-control" name="sku' + counter + '" /></td> ';
cols += '<td> <input type="text" class="form-control" name="quantity' + counter + '" /></td> ';
cols += ' <td> <input type="text" class="form-control" name="price' + counter + '" /></td>';
cols += ' <td> <input type="button" class="ibtnDel btn btn-md btn-danger " value="Delete"></td>';
newRow.append(cols);
$("table.order-list").append(newRow);
counter++;
});
$("table.order-list").on("click", ".ibtnDel", function (event) {
$(this).closest("tr").remove();
counter -= 1
});
});
<link rel="stylesheet" href="https://stackpath.bootstrapcdn.com/bootstrap/4.1.3/css/bootstrap.min.css">
<link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/font-awesome/4.7.0/css/font-awesome.min.css">
<div class="container">
<form id="orderForm" method="POST" action="test.php">
<h2>Address Information</h2>
<div class="row">
<div class="col-6">
<div class="form-group">
<label for="bill_name"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Name</div>
</div>
<input id="bill_name" name="bill_name" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_line_1"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Line 1</div>
</div>
<input id="bill_line_1" name="bill_line_1" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_line_2"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Line 2</div>
</div>
<input id="bill_line_2" name="bill_line_2" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_line_3"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Line 3</div>
</div>
<input id="bill_line_3" name="bill_line_3" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_line_4"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Line 4</div>
</div>
<input id="bill_line_4" name="bill_line_4" type="text" aria-describedby="bill_line_4HelpBlock" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
<span id="bill_line_4HelpBlock" class="form-text text-muted">(Not always Needed)</span>
</div>
<div class="form-group">
<label for="bill_county"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing County</div>
</div>
<input id="bill_county" name="bill_county" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-globe"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_post"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Postcode</div>
</div>
<input id="bill_post" name="bill_post" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-area-chart"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_telephone"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Telephone Number</div>
</div>
<input id="bill_telephone" name="bill_telephone" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-phone"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="bill_email"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Billing Email Address</div>
</div>
<input id="bill_email" name="bill_email" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-tablet"></i>
</div>
</div>
</div>
</div>
</div>
<div class="col-6">
<div class="form-group">
<label for="ship_name"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Name</div>
</div>
<input id="ship_name" name="ship_name" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_line_1"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Line 1</div>
</div>
<input id="ship_line_1" name="ship_line_1" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_line_2"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Line 2</div>
</div>
<input id="ship_line_2" name="ship_line_2" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_line_3"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Line 3</div>
</div>
<input id="ship_line_3" name="ship_line_3" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_line_4"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Line 4</div>
</div>
<input id="ship_line_4" name="ship_line_4" type="text" aria-describedby="ship_line_4HelpBlock" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-building-o"></i>
</div>
</div>
</div>
<span id="ship_line_4HelpBlock" class="form-text text-muted">(Not always Needed)</span>
</div>
<div class="form-group">
<label for="ship_county"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping County</div>
</div>
<input id="ship_county" name="ship_county" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-globe"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_post"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Postcode</div>
</div>
<input id="ship_post" name="ship_post" type="text" required="required" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-area-chart"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_telephone"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Telephone Number</div>
</div>
<input id="ship_telephone" name="ship_telephone" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-phone"></i>
</div>
</div>
</div>
</div>
<div class="form-group">
<label for="ship_email"></label>
<div class="input-group">
<div class="input-group-prepend">
<div class="input-group-text">Shipping Email Address</div>
</div>
<input id="ship_email" name="ship_email" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-tablet"></i>
</div>
</div>
</div>
</div>
<button type="button" onclick="test()" class="btn btn-primary pull-right"><i class="fa fa-copy"></i></button>
</div>
</div>
<br>
<div class="container">
<h2>Extra Information</h2>
<div class="row">
<div class="col-6">
<div class="form-group row">
<label for="ship_method" class="col-5 col-form-label">Shipping Method</label>
<div class="col-7">
<div class="input-group">
<input id="ship_method" name="ship_method" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-anchor"></i>
</div>
</div>
</div>
</div>
</div>
<div class="form-group row">
<label for="extra_shipping" class="col-5 col-form-label">Extra Shipping</label>
<div class="col-7">
<div class="input-group">
<input id="extra_shipping" name="extra_shipping" type="text" class="form-control" aria-describedby="extra_shippingHelpBlock">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-money"></i>
</div>
</div>
</div>
<span id="extra_shippingHelpBlock" class="form-text text-muted">(Leave Blank For Free Shipping)</span>
</div>
</div>
<div class="form-group row">
<label for="mage_order_number" class="col-5 col-form-label">Magento Order Number</label>
<div class="col-7">
<div class="input-group">
<input id="mage_order_number" name="mage_order_number" type="text" class="form-control">
<div class="input-group-append">
<div class="input-group-text">
<i class="fa fa-bars"></i>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<br><br>
<div class="container">
<h2>Item Information</h2>
<div class="row">
<div class="col-12">
<table id="myTable" class=" table order-list">
<thead>
<tr>
<td>SKU</td>
<td>Quantity</td>
<td>Price</td>
</tr>
</thead>
<tbody>
<tr>
<td>
<input type="text" name="sku" class="form-control" />
</td>
<td>
<input type="number" name="quantity" class="form-control" />
</td>
<td>
<input type="number" name="price" class="form-control" />
</td>
<td>
<a class="deleteRow"></a>
</td>
</tr>
</tbody>
<tfoot>
<tr>
<td colspan="5" style="text-align: left;">
<input type="button" class="btn btn-lg btn-block " id="addrow" value="Add Row" />
</td>
</tr>
<tr></tr>
</tfoot>
</table>
<input type="submit" id="submitButton" name="submitButton" value="Submit">
</div>
</div>
</div>
</form>
</div>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.14.7/umd/popper.min.js" integrity="sha384-UO2eT0CpHqdSJQ6hJty5KVphtPhzWj9WO1clHTMGa3JDZwrnQq4sF86dIHNDz0W1" crossorigin="anonymous"></script>
<script src="https://stackpath.bootstrapcdn.com/bootstrap/4.3.1/js/bootstrap.min.js" integrity="sha384-JjSmVgyd0p3pXB1rRibZUAYoIIy6OrQ6VrjIEaFf/nJGzIxFDsf4x0xIM+B07jRM" crossorigin="anonymous"></script>

Validate form before Bootstrap modal popup

in php file i have simple form and bootstrap modal . after clicking submit button bootstrap modal will display.
Form is:
i need to validate above form fields. if it is success then i need to display the modal and validate those fields.
Modal is:
My Code is:
<div class="modal fade" id="squarespaceModal" tabindex="-1" role="dialog" aria-labelledby="modalLabel" aria-hidden="true">
<div class="modal-dialog">
<div class="modal-content">
<div class="modal-header">
<button type="button" class="close" data-dismiss="modal"><span aria-hidden="true">×</span><span class="sr-only">Close</span></button>
<h3 class="modal-title" id="lineModalLabel">Fill Below Details</h3>
</div>
<div class="modal-body">
<div class="main-login pop-up-form">
<form class="" method="post" action="#"><br>
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-user fa" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="name" id="name" placeholder="Enter your Name"/>
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-envelope fa" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="email" id="email" placeholder="Enter your Email"/>
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-map-marker" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="username" id="username" placeholder="Enter your Address"/>
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-phone" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="username" id="username" placeholder="Enter your Phone No"/>
</div>
</div>
</div>
<div class="form-group ">
CLICK For Enquiry
</div>
</form>
</div>
</div>
<div class="modal-footer">
<div class="btn-group btn-group-justified" role="group" aria-label="group button">
<div class="btn-group" role="group">
<button type="button" class="btn btn-default" data-dismiss="modal" role="button">Close</button>
</div>
<div class="btn-group btn-delete hidden" role="group">
<button type="button" id="delImage" class="btn btn-default btn-hover-red" data-dismiss="modal" role="button">Delete</button>
</div>
</div>
</div>
</div>
</div>
</div>
Form code is showed below:
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-calendar" aria-hidden="true"></i></span>
<input type="date" class="form-control" name="udate" id="udate" placeholder="ghf" style="height: 39px !important;" />
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10 food">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-user fa" aria-hidden="true"></i></span>
<select name="ftime" id="ftime">
<option value="">---Select---</option>
<option value="1">Breakfast</option>
<option value="2">Lunch</option>
<option value="3">Dinner</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10 food">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-envelope fa" aria-hidden="true"></i></span>
<select id="ftype" name="ftype" onchange="validate()">
<option value="">--select--</option>
<option value="hai">V</option>
<option value="hai">NV</option>
</select>
</div>
</div>
</div>
<div class="form-group">
<div class="cols-sm-10">
<div class="input-group">
<span class="input-group-addon"><i class="fa fa-money fa" aria-hidden="true"></i></span>
<input type="text" class="form-control" name="amount" id="amount" placeholder="hai" readonly="readonly" />
</div>
</div>
</div>
<div class="form-group ">
<a href="#" data-toggle="modal" data-target="#squarespaceModal" type="button" id="button" class="btn btn-primary btn-lg btn-block login-button" onclick="
validate2()">Submit</a>
</div>
</form>
i was not able to validate both the form and modal. please help me on this..
thanks in advance

You can write a simple validation method
An example could be....
function checkValidation()
{
var isValid = true;
if($("#date").val() == null){
isValid = false;
}
if($("#person").val() == null){
isValid = false;
}
if($("#mail").val() == null){
isValid = false;
}
return isValid;
}
if(checkValidation())
$("#modalDialog").show();
else
alert("Form is not valid");

Try this code:
First attach an click listener to your form submit button and validate your form when button is clicked and if validation is successful then you can show your modal.
$(document).on('click', '#submit', function(e){
e.preventDefault();
var validated = validateform();
if(validated){
$('#modal').modal('show');
}
});
Write your validation logic inside this function and return true if validation passes tests.
function validateform(){
// logic for form validation
// return true if validated successfully
}

Serialize data in AJax

I having trouble for adding a multiple Sub Author in my form, I have a form that you can add a sub author. The code works if I only submit one sub author but if multiple sub author the codes not working.
Here's the code of my text box in FormAddBook.
<input type="text" class="form-control" placeholder="Sub Authors" name="SubAuthors[]" maxlength="50" />
And when you want to add another sub author, text box will appear when yun click the Add Sub Author with the same name of textbox.
The codes work when one sub author only but if multiple sub authors the codes not working.
Here's the code of my jquery.
$.ajax({
type: 'POST',
url: 'proc/exec/exec-insert-book.php',
data: $('#FormAddBook').serialize(),
});
Does the Serialize cannot recognize the another text box?
Sorry for my bad english.
Here's the HTML Form code.
<form id="FormAddBook">
<div class="modal-body">
<div class="row">
<div class="col-lg-6 hide" >
<label>Accession No:</label>
<div class="form-group">
<input type="text" class="form-control" placeholder="Accession No" name="AccessionNo" readonly/>
</div>
</div>
<div class="col-lg-12">
<div class="form-group">
<label>ISBN:</label>
<input type="text" class="form-control" placeholder="ISBN" name="BookISBN" maxlength="20" />
</div>
</div>
<div class="col-lg-6">
<div class="form-group">
<label>Date Book Added:</label>
<div id="DateBookAdded" class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span></span>
<input type="text" class="form-control" placeholder="Date Book Added" name="DateBookAdded" readonly/>
</div>
</div>
</div>
<div class="col-lg-6">
<div class="form-group">
<label>Archived Date Extension:</label>
<div id="BookAuthLast" class="input-group">
<span class="input-group-addon"><span class="glyphicon glyphicon-calendar"></span></span>
<input type="text" class="form-control" placeholder="" name="ArchivedDateExt" readonly/>
</div>
</div>
</div>
<div id="subauthcont">
<div class="subAuthors col-lg-12">
<div class="form-group">
<label>Sub authors:</label>
<div class="input-group">
<input type="text" class="form-control" placeholder="Sub Authors" name="SubAuthors[]" maxlength="50" />
<span class="input-group-btn" disabled>
<button id="btnAddSubAuth" class="btn btn-info" type="button" ><i class="fa fa-user" aria-hidden="true"></i></button>
</span>
</div>
</div>
</div>
</div>
<div class="col-lg-8">
<div class="form-group">
<label>Subject:</label>
<select class="form-control" name="Description">
<option>Generalities</option>
<option>Philosophy and Psychology</option>
<option>Religion</option>
<option>Social Science</option>
<option>Languages</option>
<option>Science</option>
<option>Technology</option>
<option>Arts and Recreation</option>
<option>Literature</option>
<option>Geography and History</option>
</select>
</div>
</div>
<div class="col-lg-4">
<div class="form-group">
<label>Status:</label>
<select class="form-control" name="Status" readonly>
<option>Available</option>
</select>
</div>
</div>
</div>
</div>
<div class="modal-footer">
<button type="button" class="btn btn-default" data-dismiss="modal">Close</button>
<button id="btnSave2" type="submit" class="btn btn-primary asd">Save</button>
</div>
</form>
</div>

Bootstrap validation states with file upload

I used bootstrap to return feedback to user about upload result.
So when the upload go well I use green success feedback, otherwise I return red error feedback.
But if he push browse button I would like to return to no feedback input tag, how can i do it?
This is part of my code:
<form class="input-group col-xs-12" method="post"
enctype="multipart/form-data" th:action="#{/file/excelFileRead}">
<div class="btn btn-primary btn-file col-xs-2">
<!-- Using accept the browse window allows only excel files -->
Browse… <input type="file" name="file"
accept=".xls, .xlsx, .xlsm" />
</div>
<!-- Manage success message -->
<div th:if="${opened == 'true'}">
<div class="form-group has-success has-feedback col-xs-8">
<input type="text" class="form-control" readonly="readonly"
id="inputSuccess2" aria-describedby="inputSuccess2Status"
th:value="${fileName}"> <span
class="glyphicon glyphicon-ok form-control-feedback"
aria-hidden="true"></span> <span id="inputSuccess2Status"
class="sr-only">(success)</span>
<label class="control-label"
for="inputSuccess2" th:text="${successMessage}"></label>
</div>
</div>
<div th:if="${opened == 'false'}">
<div class="form-group has-error has-feedback">
<input type="text" class="form-control" readonly="readonly"
id="inputError2" th:value="${fileName}"
aria-describedby="inputError2Status"> <label
class="control-label" for="inputError2"
th:text="${errorMessage}"></label> <span
class="glyphicon glyphicon-remove form-control-feedback"
aria-hidden="true"></span> <span id="inputError2Status"
class="sr-only">(error)</span>
</div>
</div>
<!-- <div th:if="${opened == null}">
<div class="col-xs-8">
<input type="text" class="form-control" readonly="readonly"
th:value="${fileName}" />
</div>
</div>-->
<div class="col-xs-2">
<input type="submit" class="btn btn-info" value="Open" />
</div>
</form>