Required attribute not working using javascript submit - javascript

I make some form different action within different button
<form id="form" method="post" class="form-horizontal" enctype="multipart/form-data">
<input name="name" class="form-control" type="text" required>
</form>
<button type="button" class="btn btn-primary" onClick="submitForm('<?php echo base_url('order/add');?>')">Submit</button>
<button type="button" class="btn btn-warning" onClick="submitForm('<?php echo base_url('order/print');?>')">Print</button>
Javascript
function submitForm(action)
{
document.getElementById('form').action = action;
document.getElementById('form').submit(
);
}
Then, my required attribute not working. Did I do something wrong? Let me know if there is other solution.
Thanks,

I can't give you a good explanation but you need the submit buttons inside the form.
So if you would have a button like:
<input type="submit" value="Submit">,
it will trigger the required attribute.
#Remn If you would still stay on your structure with submit inside a function you could trigger yourself the validation like:
if ($("form")[0].checkValidity())
{
$("form").submit()
}
and then do something with inputs that are invalid by passing through each required element ( input is set in code ):
$('form :input[required="required"]').each(function()
{
if(!this.validity.valid)
{
$(this).focus();
// break
return false;
}
});
In the below case the invalid inputs will be focused one by one.
The whole code is:
$( function () {
$("body").on("click", "#trigger", function() {
if ($("form")[0].checkValidity())
{
$("form").submit()
}
$('form :input[required="required"]').each(function()
{
if(!this.validity.valid)
{
$(this).focus();
// break
return false;
}
});
});
});
Where #trigger is an id I set on the button to submit, you can make your own functions to achieve your goal I just used on().
I hope it helps!

Please try bellow code. i hope solve your problem.
<html>
<head>
<title>Submit</title>
<script type="text/javascript" language="javascript">
function submitForm(action)
{
document.getElementById('form').action = action;
document.getElementById('form').submit(
);
//alert(document.getElementById('form').action);
}
</script>
</head>
<body>
<form id="form" method="get" class="form-horizontal" enctype="multipart/form-data">
<input name="name" class="form-control" type="text" required="required">
<button type="submit" class="btn btn-primary" onclick="return submitForm('<?php echo base_url('order/add');?>');" id="submit">Submit</button>
<button type="submit" class="btn btn-warning" onclick="return submitForm('<?php echo base_url('order/print');?>');" id="print">Print</button>
</form>
</body>
</html>

I have test your code by adding Javascript part in Script tag it is working fine. And i tested it on Chrome Windows 10.
<form id="form" method="post" class="form-horizontal" enctype="multipart/form-data">
<input name="name" class="form-control" type="text" required>
</form>
<button type="button" class="btn btn-primary" onClick="submitForm('<?php echo base_url('order/add'); ?>')">Submit</button>
<button type="button" class="btn btn-warning" onClick="submitForm('<?php echo base_url('order/print'); ?>')">Print</button>
<script>
function submitForm(action) {
document.getElementById('form').action = action;
document.getElementById('form').submit();
}
</script>

Using javascript's form.submit() function will cause input validation to be bypassed (according to the HTML specification in point 4 of the form submission algorithm). The only way to trigger HTML input validation is to use a click event on a submit button inside the form, either by the user actually clicking, or in javascript with something like form.querySelector('input[type="submit"]').click().

Related

How to validate HTML elements when submitting through JQuery?

I have an HTML form as shown below with some form fields and a submit and a delete button:
There is also a floating component which appears whenever there are changes in the form as shown in the same diagram with text: You have unsaved changes. This is a common component which appears for all the forms in my website.
When I submit the form using the form's Submit button, it validates all the fields as per the validations.
(for example: <input type="number" min="0"> will check that the number should be positive)
But if I submit the form from the Save button on the floating element, it does not checks for any validation, and just posts the request.
I tried using the following code, but the reportValidity() function doesn't do anything.
if (!form.checkValidity()) {
form.reportValidity();
}
form.checkValidity() and form.reportValidity() both are returning false when I do a console.log.
What am I missing here, and how can I fix this?
P.S. I tried this on chrome v98.
Edit: Adding HTML code:
<form method="post" action="/products/manage/{{.Product.ID}}/submit/">
<div class="form-group col-md-5">
<label>Product Quantity</label>
<input type="number" min="0" name="ProductQuantity" value="{{if .Product}}{{.Product.Qunatity}}{{else}}10{{end}}">
</div>
<button type="submit" class="btn btn-success" value="Submit">Submit</button>
<button type="submit" class="btn btn-danger" value="Delete" formaction="/products/manage/{{.Product.ID}}/delete/">Delete</button>
</form>
Save button calls this function:
function submitForm(form, url) {
const form = $(form)[0]
if (!form.checkValidity()) { //<- Added the code here
form.reportValidity();
}
var serialized = serializeForm(form);
// Do some more things then use HTTP to request the API
}
You can easily use the jQuery event handlers do the work for you.
A simplified example below:
Give your form some identifier (example: id="form1")
Catch the click event on button click
Trigger the submit event to submit that form
$('.unsavedChangesBtn').on('click',function(){
$('#form1').submit();
});
In below example you can submit the form either by clicking the submit button or the save button.
$('document').ready(function(){
$('#form1').on('submit',function(){
alert("SUBMITTED");
});
$('.unsavedChangesBtn').on('click',function(){
$('#form1').submit();
});
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form method="post" id="form1" action="javascript:void(0);">
<div class="form-group col-md-5">
<label>Product Quantity</label>
<input type="number" min="0" name="ProductQuantity" value="{{if .Product}}{{.Product.Qunatity}}{{else}}10{{end}}">
</div>
<button type="submit" class="btn btn-success" value="Submit">Submit</button>
<button type="submit" class="btn btn-danger" value="Delete" formaction="/products/manage/{{.Product.ID}}/delete/">Delete</button>
</form>
<button class="unsavedChangesBtn"> SAVE </button>

I have to click the button twice to make the onclick work

Here is my html and JS code. When I first click on the button it submits the form but doesn't call the onclick function. I've tried adding onsubmit method to the form and make button type=button. However, that didn't change anything.
The form submission is for Django btw.
<form action='' method='GET' required id='form_id'>
<input class='url_box' type='url' name='url_value' placeholder='Paste the URL...'/> <br>
<button class='submit-btn' type='submit' onclick="delayRedirect()">Listen</button>
</form>
JavaScript
function delayRedirect(){
setTimeout(function(){
window.location = 'player';
}, 1500);
}
Thanks in advance!
Changed the button type to button, and it logs "clicked." before submitting the form.
$('.submit-btn').click((e) => {
console.log('clicked.');
$('form').submit();
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form action='' method='GET' required id='form_id'>
<input class='url_box' type='url' name='url_value' placeholder='Paste the URL...'/> <br>
<button class='submit-btn' type='button'>Listen</button>
</form>
<form required id='form_id'>
<input class='url_box' type='url' name='url_value' placeholder='Paste the URL...'/> <br>
<button class='submit-btn'>Listen</button>
</form>
/JS
const btn = document.querySelector('.sumbit-btn')
btn.addEventListener("click", (e)=>{
e.preventDefault() // becuse the btn in <form></form>
// send to Django
})
HTML
<form action='' target="you_dont_see_me" method='POST' required id='form_id'>
<input class='url_box' type='url' name='url_value' placeholder='Paste the URL...'/> <br>
<button class='submit-btn' type='button' onclick="delayRedirect()">Listen</button>
</form>
<iframe name="you_dont_see_me" style="display:none"></iframe>
JS
function delayRedirect(){
document.getElementById('form_id').submit();
setTimeout(function(){
//do whatever you want
}, 1500);
}
You can use iframe, but your method needs to be changed to POST.
I personally would use ajax to handle this kind of situation

Form with two buttons

I am trying to create multiple forms which have two buttons, each will submit the form to different script, one via ajax and second one will just submit the form.
<?php foreach($objects as $object) : ?>
<div class="card-body">
<form id="edit-form" action="#" method="POST">
<input name="subject" value="<?=$object['subject']?>" type="text" id="title" class="input-xxlarge">
<textarea id="content" name="content" rows="25"><?=$object['content']?></textarea>
<button type="button" id="send-button" class="btn btn-primary">Send</button>
<input type="submit" id="submit-button" value="Submit"/>
</form>
</div>
<?php endforeach; ?>
First I am trying to get the current form, but I have problem with that. console.log shows something only on the first form, if I click on the buttons from other forms then It will do nothing.
$('#send-button').on('click', function(e) {
e.defaultPrevented;
$form = $(this);
$url = $form.attr('action');
$data = $form.serialize(); console.log($form);
console.log($url);
});
Is it because my button has same ID for every form ?
You shouln't use ID's multiple times on the same page. Try to use a class for that case. Also as stated in the comments use e.preventDefault(); to stop the event.
$(this) will result in the #send-button beeing targeted. To access the form you need to find the closest form element like this:
$form = $(this).closest('form');
html:
<form method="POST" action="#">
<input type="text">
<button type="button">send</button>
<input type="submit" value="submit" />
</form>
<form method="POST" action="#">
<input type="text">
<button type="button">send</button>
<input type="submit" value="submit" />
</form>
js:
$("form").each(function() {
var form = this;
$(form).find('button').on('click', function(e) {
e.preventDefault();
console.log(form);
console.log(this);
})
});
this will add events on every form you have on your page, button will submit form via script and submit will just submit it. also here's a fiddle to play with

How can I pass variable from the onclick of a button to the javascript code?

This code works:
<script type="text/javascript">
function submit_form()
{
if(confirm('My message here.'))
{
document.my_form_name.submit();
}
}
</script>
<form action="index.php" method="post" name="my_form_name">
<input type="button" value="Skip" onclick="submit_form()">
<input name="submit" type="submit" value="Save and continue">
</form>
HIGHLIGHTS:
function submit_form()
document.my_form_name.submit()
form action="index.php" method="post" name="my_form_name"
input type="button" value="Skip" onclick="submit_form()"
This does not work (but I want it to):
<script type="text/javascript">
function submit_form(variable)
{
if(confirm('My message here.'))
{
document.variable.submit();
}
}
</script>
<form action="index.php" method="post" name="my_form_name">
<input type="button" value="Skip" onclick="submit_form('my_form_name')">
<input name="submit" type="submit" value="Save and continue">
</form>
HIGHLIGHTS:
function submit_form(variable)
document.variable.submit()
form action="index.php" method="post" name="my_form_name"
input type="button" value="Skip" onclick="submit_form('my_form_name')"
I'm quite ok with PHP but lack decent JavaScript knowledge so if someone could point me in the right direction I'd be very happy!
And why do I need 2 buttons? Well, I want to display the skip-button to the left of the continue-button (first in HTML flow) but I do not want it to be default action if form is submitted by pressing enter key, therefore I let skip-button be "just" a button (controlled by JavaScript for submitting) and only the continue-button to be a "real" submit-button...
When you are using document.variable, it looks for something named variable. If you want it to look for the variable's value ('my_form_name'), use document[variable]:
if(confirm('My message here.'))
{
document[variable].submit();
}
#Blex has provided the right answer. Even though I am not a fan of inline JS, the following can save some typing and improve readability of your code:
HTML:
<input type="button" value="Skip" onclick="submit_form(this)">
<!-- use this instead of 'my_form_name' -->
JS:
variable.form.submit(); //instead of document[variable].submit();

HTML form with two submit buttons and two "target" attributes

I have one HTML <form>.
The form has only one action="" attribute.
However I wish to have two different target="" attributes, depending on which button you click to submit the form. This is probably some fancy JavaScript code, but I haven't an idea where to begin.
How could I create two buttons, each submitting the same form, but each button gives the form a different target?
I do this on the server-side.
That is, the form always submits to the same target, but I've got a server-side script who is responsible for redirecting to the appropriate location depending on what button was pressed.
If you have multiple buttons, such as
<form action="mypage" method="get">
<input type="submit" name="retry" value="Retry" />
<input type="submit" name="abort" value="Abort" />
</form>
Note: I used GET, but it works for POST too
Then you can easily determine which button was pressed - if the variable retry exists and has a value then retry was pressed, and if the variable abort exists and has a value then abort was pressed. This knowledge can then be used to redirect to the appropriate place.
This method needs no Javascript.
Note: This question and answer was from so many years ago when "wanting to avoid relying on Javascript" was more of a thing than it is today. Today I would not consider writing extra server-side functionality for something like this. Indeed, I think that in most instances where I would need to submit form data to more than one target, I'd probably be doing something that justified doing a lot of the logic client-side in Javascript and using XMLHttpRequest (or indeed, the Fetch API) instead.
It is more appropriate to approach this problem with the mentality that a form will have a default action tied to one submit button, and then an alternative action bound to a plain button. The difference here is that whichever one goes under the submit will be the one used when a user submits the form by pressing enter, while the other one will only be fired when a user explicitly clicks on the button.
Anyhow, with that in mind, this should do it:
<form id='myform' action='jquery.php' method='GET'>
<input type='submit' id='btn1' value='Normal Submit'>
<input type='button' id='btn2' value='New Window'>
</form>
With this javascript:
var form = document.getElementById('myform');
form.onsubmit = function() {
form.target = '_self';
};
document.getElementById('btn2').onclick = function() {
form.target = '_blank';
form.submit();
}
Approaches that bind code to the submit button's click event will not work on IE.
In case you are up to HTML5, you can just use the attribute formaction. This allows you to have a different form action for each button.
<!DOCTYPE html>
<html>
<body>
<form>
<input type="submit" formaction="firsttarget.php" value="Submit to first" />
<input type="submit" formaction="secondtarget.php" value="Submit to second" />
</form>
</body>
</html>
This works for me:
<input type='submit' name='self' value='This window' onclick='this.form.target="_self";' />
<input type='submit' name='blank' value='New window' onclick='this.form.target="_blank";' />
In this example, taken from
http://www.webdeveloper.com/forum/showthread.php?t=75170
You can see the way to change the target on the button OnClick event.
function subm(f,newtarget)
{
document.myform.target = newtarget ;
f.submit();
}
<FORM name="myform" method="post" action="" target="" >
<INPUT type="button" name="Submit" value="Submit" onclick="subm(this.form,'_self');">
<INPUT type="button" name="Submit" value="Submit" onclick="subm(this.form,'_blank');">
Simple and easy to understand, this will send the name of the button that has been clicked, then will branch off to do whatever you want. This can reduce the need for two targets. Less pages...!
<form action="twosubmits.php" medthod ="post">
<input type = "text" name="text1">
<input type="submit" name="scheduled" value="Schedule Emails">
<input type="submit" name="single" value="Email Now">
</form>
twosubmits.php
<?php
if (empty($_POST['scheduled'])) {
// do whatever or collect values needed
die("You pressed single");
}
if (empty($_POST['single'])) {
// do whatever or collect values needed
die("you pressed scheduled");
}
?>
Example:
<input
type="submit"
onclick="this.form.action='new_target.php?do=alternative_submit'"
value="Alternative Save"
/>
Voila.
Very "fancy", three word JavaScript!
Here's a quick example script that displays a form that changes the target type:
<script type="text/javascript">
function myTarget(form) {
for (i = 0; i < form.target_type.length; i++) {
if (form.target_type[i].checked)
val = form.target_type[i].value;
}
form.target = val;
return true;
}
</script>
<form action="" onSubmit="return myTarget(this);">
<input type="radio" name="target_type" value="_self" checked /> Self <br/>
<input type="radio" name="target_type" value="_blank" /> Blank <br/>
<input type="submit">
</form>
HTML:
<form method="get">
<input type="text" name="id" value="123"/>
<input type="submit" name="action" value="add"/>
<input type="submit" name="action" value="delete"/>
</form>
JS:
$('form').submit(function(ev){
ev.preventDefault();
console.log('clicked',ev.originalEvent,ev.originalEvent.explicitOriginalTarget)
})
http://jsfiddle.net/arzo/unhc3/
<form id='myForm'>
<input type="button" name="first_btn" id="first_btn">
<input type="button" name="second_btn" id="second_btn">
</form>
<script>
$('#first_btn').click(function(){
var form = document.getElementById("myForm")
form.action = "https://foo.com";
form.submit();
});
$('#second_btn').click(function(){
var form = document.getElementById("myForm")
form.action = "http://bar.com";
form.submit();
});
</script>
It is do-able on the server side.
<button type="submit" name="signin" value="email_signin" action="/signin">Sign In</button>
<button type="submit" name="signin" value="facebook_signin" action="/facebook_login">Facebook</button>
and in my node server side script
app.post('/', function(req, res) {
if(req.body.signin == "email_signin"){
function(email_login) {...}
}
if(req.body.signin == "fb_signin"){
function(fb_login) {...}
}
});
Have both buttons submit to the current page and then add this code at the top:
<?php
if(isset($_GET['firstButtonName'])
header("Location: first-target.php?var1={$_GET['var1']}&var2={$_GET['var2']}");
if(isset($_GET['secondButtonName'])
header("Location: second-target.php?var1={$_GET['var1']}&var2={$_GET['var2']}");
?>
It could also be done using $_SESSION if you don't want them to see the variables.
Alternate Solution. Don't get messed up with onclick,buttons,server side and all.Just create a new form with different action like this.
<form method=post name=main onsubmit="return validate()" action="scale_test.html">
<input type=checkbox value="AC Hi-Side Pressure">AC Hi-Side Pressure<br>
<input type=checkbox value="Engine_Speed">Engine Speed<br>
<input type=submit value="Linear Scale" />
</form>
<form method=post name=main1 onsubmit="return v()" action=scale_log.html>
<input type=submit name=log id=log value="Log Scale">
</form>
Now in Javascript you can get all the elements of main form in v() with the help of getElementsByTagName(). To know whether the checkbox is checked or not
function v(){
var check = document.getElementsByTagName("input");
for (var i=0; i < check.length; i++) {
if (check[i].type == 'checkbox') {
if (check[i].checked == true) {
x[i]=check[i].value
}
}
}
console.log(x);
}
This might help someone:
Use the formtarget attribute
<html>
<body>
<form>
<!--submit on a new window-->
<input type="submit" formatarget="_blank" value="Submit to first" />
<!--submit on the same window-->
<input type="submit" formaction="_self" value="Submit to second" />
</form>
</body>
</html>
On each of your buttons you could have the following;
<input type="button" name="newWin" onclick="frmSubmitSameWin();">
<input type="button" name="SameWin" onclick="frmSubmitNewWin();">
Then have a few small js functions;
<script type="text/javascript">
function frmSubmitSameWin() {
form.target = '';
form.submit();
}
function frmSubmitNewWin() {
form.target = '_blank';
form.submit();
}
</script>
That should do the trick.
e.submitEvent.originalEvent.submitter.value
if you use event of form

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