Check Form Before Submit Use Ajax Django - ajax

I use Ajax to send data from form to server. But I want to check data in form before Submit by Ajax:
<form id='#id_form' onsubmit='return checkInputSubmit();' >
...
</form>
In Ajax:
$('#id_form').submit(function(e) {
e.preventDefault();
$.ajax({
type: 'POST',
url: url,
dataType: 'json',
data: $('#id_form').serialize(), // serializes the form's elements.
success: function(data) {
if(data.result == true) {
//My code
}
else {
//My code
}
}
});
});
But checkInputSubmit() can't prevent submit from Ajax. You can explain for me and give me solution to check data in form before Submit by Ajax.
Thanks.

in the $('#id_form').submit(function(e) event, you can check/edit/return... any thing you want before call Ajax. Within Ajax, i think it won't work and don't good. (we just check ajax result, not input)

#Blurp, I found the solution by use your help.
$('#id_form').validate({
submitHandler: function(form) {
e.preventDefault();
$.ajax({
type: 'POST',
url: url,
dataType: 'json',
data: $('#id_form').serialize(), // serializes the form's elements.
success: function(data) {
if(data.result == true) {
//My code
}
else {
//My code
}
}
});
}
});

Related

Laravel - ajax creates double input

I have made this ajax request to show the validation errors and prevent the page to reload
$(document).on('mousedown', ':submit', function() {
//alert('clicked submit');
var form = $("form");
$.ajax({
type: 'post',
url: '/events',
headers: { 'X-CSRF-TOKEN': "{{csrf_token()}}" },
data: form.serialize(),
dataType: 'json',
success: function(data){
},
error: function(data) {
for(errors in data.responseJSON){
swal({text:data.responseJSON[errors]});
}
}
});
});
All is fine with this code! The problem is that after successfull submit i have 2 inputs in DB...how can i prevent this?
Are you sure the form isn't actually submitting and saving the values once by post and once by ajax? Usually if you're capturing a submit event you listen for the forms submit even not the mousedown event of the submit button e.g.
$('form').on('submit', function(e) {
// Stop the forms default submit action
e.preventDefault();
//alert('clicked submit');
var form = $("form");
$.ajax({
type: 'post',
url: '/events',
headers: { 'X-CSRF-TOKEN': "{{csrf_token()}}" },
data: form.serialize(),
dataType: 'json',
success: function(data){
},
error: function(data) {
for(errors in data.responseJSON){
swal({text:data.responseJSON[errors]});
}
}
});
});
Also the e.preventDefault() will prevent the form from submitting itself along with your ajax action. Also you'd best off selecting your form by an ID or class name.

Ajax request type POST returning GET

I'm currently trying to make an ajax POST request to send a testimonial simple form to a Django view. The problem is this request is returning a GET instead of a POST.
This is my ajax:
<script>
$(document).ready(function(){
$("form.testimonial-form").submit(function(e){
e.preventDefault();
var dataString = $(this).serialize();
$.ajax({
type: "POST",
url: "/testimonials",
data: dataString,
success: function(_data) {
if (_data[0]){
$('.modal-text').css({display: "none"});
}
else{
$('.unsuccess').css({display: "block"});
}
}
});
});
});
</script>
Any idea what could I be doing wrong?
replace type by method
method: 'post',
also you may need send headers:
headers: {
'X-CSRFToken': getCSRFToken()
},
where getCSRFToken is:
function getCSRFToken() {
return $('input[name="csrfmiddlewaretoken"]').val();
}
I am not really sure why this is happening, but i would write the function in a bit different way. since ajax();'s default type is "GET", i suspect somewhere it is being set to default.
first set the type="button" of submit button (whose id is e.g. "submit_button_id"), so it doesnot submits if you click on it. or put the button outside of <form>
then try this code
<script>
$(function(){ // same as "$(document).ready(function()"..
$("#submit_button_id").on('click',function(){
var dataString = $('form.testimonial-form').serialize();
$.ajax({
type: "POST",
url: "/testimonials",
data: dataString,
success: function(_data) {
if (_data[0]){
$('.modal-text').css({display: "none"});
}
else{
$('.unsuccess').css({display: "block"});
}
}
});
});
});
</script>

Redirecting after Ajax post

I want the success on ajax post to go to the home page. For some reason I keep doing it wrong. Any idea what I should do to fix this?
window.APP_ROOT_URL = "<%= root_url %>";
Ajax
$.ajax({ url: '#{addbank_bankaccts_path}',
type: 'POST',
beforeSend: function(xhr) {xhr.setRequestHeader('X-CSRF-Token', '#{form_authenticity_token}')},
dataType: "json",
data: 'some_uri=' + response.data.uri ,
success: function(APP_ROOT_URL) {
window.location.assign(APP_ROOT_URL);
}
});
success: function(response){
window.location.href = response.redirect;
}
Hope the above will help because I had the same problem
You can return the JSON from server with redirect status and redirect URL.
{"redirect":true,"redirect_url":"https://example.com/go/to/somewhere.html"}
And in your jQuery ajax handler
success: function (res) {
// check redirect
if (res.redirect) {
window.location.href = res.redirect_url;
}
}
Note you must set dataType: 'json' in ajax config. Hope this is helpful.
Not sure why, but window.location.href did not work for me. I ended up using window.location.replace instead, which actually worked.
$('#checkout').click(function (e) {
e.preventDefault();
$.ajax('/post/url', {
type: 'post',
dataType: 'json'
})
.done(function (data) {
if (data.cartCount === 0) {
alert('There are no items in cart to checkout');
}
else {
window.location.replace('/Checkout/AddressAndPayment');
}
});
});

when ajax post success i want to refresh a particular <div> in page

i want to refresh a particular div on ajax success, im using the below code but the whole page getting refreshed.
<script type="text/javascript">
$('#post_submit').click(function() {
var form_data = {
csrfsecurity: $("input[name=csrfsecurity]").val(),
post_text: $('#post_text').val()
};
$.ajax({
url: "<?php echo site_url('/post_status'); ?>",
type: 'POST',
data: form_data,
success: function(response){
$(".home_user_feeds").html("markUpCreatedUsingResponseFromServer");
}
return false;
});
return false;
});
</script>
you have an extra return false which is inside the $.ajax block which most probably causes an error so your form isn't submitted via ajax. If you remove that, you shouldn't have any issues.
Use the submit event of the form and remove the return false from the ajax callback:
$('#myFormId').on('submit', function() {
var form_data = {
csrfsecurity: $("input[name=csrfsecurity]").val(),
post_text: $('#post_text').val()
};
$.ajax({
url: "<?php echo site_url('/post_status'); ?>",
type: 'POST',
data: form_data,
success: function(response){
$(".home_user_feeds").html("markUpCreatedUsingResponseFromServer");
}
});
return false;
});
Remove the return false from inside your $.ajax function. Its a syntax error. The $.ajax function only expects a json object as an argument. "return false" cannot be part of a json object. You should keep the JavaScript console open during testing at all times - Press Ctrl-Shift-J in Chrome and select console to see any JS errors.
Also suggest you use <input type=button> instead of <input type=submit> or <button></button>

Transmit AJAX data after submit

I use the code below to submit my form without reloading the page, but when data.a="a", or "b", etc. in the success part of AJAX, I still would like to submit the form as conventionally done by php without jQuery.
So in this case, the aim is to transmit the AJAX data ("data:myForm.serialize()+"&id_town="+id_town,") to the url specified in the "action" html attribute of the form.
Do you have any idea ?
Html code:
<form id="inscription_form_home" action="index.php?module=membres&action=inscription" method="post" >
...
</form>
jQuery code:
$("#inscription_form_home").submit(function() {
var myForm = $(this);
$.ajax({
dataType: 'json',
type: "POST",
url: "traitement_profil.php",
data:myForm.serialize()+"&id_town="+id_town,
success: function(data){
if (data.a == "a" || data.a == "b" ){
// Transmit the data part to the form url
}else{
alert("Inscription OK.");
}
}
});
return false;
});
As allready been said, you can do another ajax call inside the
Edition after comments, :
Try this...
<form id="inscription_form_home" action="index.php?module=membres&action=inscription"
method="post" >
...
<button id="mButton">Submot<button>
</form>
$(document).ready(function() {$("#mButton").bind('click', mysubmit($));});
function mysubmit()
{
$.ajax({
dataType: 'json',
type: "POST",
url: "traitement_profil.php",
data:myForm.serialize()+"&id_town="+id_town,
success: function(data){
if (data.a == "a" || data.a == "b" ){
//do your new call here, or you can also submit the form
}else{
alert("Inscription OK.");
}
}
});
return false;
}
You can make like this :
$(location).attr('href',YOUR URL);

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