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Ajax submit an ajax loaded form

I load replies to comments asynchronously in php like in youtube comments.
The ajax handler for forms (ie reply forms) loaded like this is not working. e.preventDefault() is not working. The forms are submitted to the action page itself and page is redirected to action url. If i edit a reply. It works but page is redirected to the action url. This happens only for the ajax loaded replies. The same handler is used for regular comments and it works fine.
A comment :
A comment with loaded replies :
When a reply is edited it just goes to /path/to/submit.php and shows the value of json output like this
result on submitting a reply form
Ajax to show or hide replies:
//load or hide replies
function loadmore(id) {
var val = $('#' + id).data("value");
var count = $('#' + id).data("count");
$.ajax({
type: 'post',
url: '/path/to/submit.php',
data: {
replyof: val
},
success: function(response) {
var content = document.getElementById("show" + val);
content.innerHTML = response;
var clicknum = $('#' + id).data("clicknum");
$('#' + id).data("clicknum", 2);
if (!$("#show" + val).is(":hidden") && clicknum != 1) {
document.getElementById(id).innerHTML =
' View all ' + count + ' replies <i class="fas fa-angle-down"></i>';
$("#show" + val).hide();
} else {
document.getElementById(id).innerHTML =
'Hide all replies <i class="fas fa-angle-up"></i>';
$('#show' + val).show();
}
}
});
}
I use the same class for comments as well as replies and ajax submit the form to the same page /path/to/submit.php using
eg
<form class="replyform" action="/path/to/submit.php">
...
<button type="submit">Delete</button>
...
</form>
The form handler
$(".replyform").submit(function(e) {
var URL = $(location).attr('href');
$.ajax({
async: true,
type: "POST",
url: $(this).attr('action'),
data: $(this).closest('form').serialize(),
success: function(data) {
if (data.result === 1) {
window.location = "/login";
} else if (data.result === 2) {
alert('Some error occured.Please try Later');
} else if (data.result === 3) {
replyer(data.comment);
$('body').load(URL);
} else {
$('body').load(URL);
}
},
dataType: "json"
});
e.preventDefault();
});

The .replyform render by ajax so use on instead of traditional way
$(document).on("submit", ".replyform",function(e) {
var URL = $(location).attr('href');
$.ajax({
async: true,
type: "POST",
url: $(this).attr('action'),
data: $(this).closest('form').serialize(),
success: function(data) {
if (data.result === 1) {
window.location = "/login";
} else if (data.result === 2) {
alert('Some error occured.Please try Later');
} else if (data.result === 3) {
replyer(data.comment);
$('body').load(URL);
} else {
$('body').load(URL);
}
},
dataType: "json"
});
e.preventDefault();
});

I think your calling your form wrong. You need an id attribute. I don't think you can call it by it's class name like that.
<form id="myForm" class="replyform" action="/path/to/submit.php">
...
<button type="submit">Delete</button>
...
</form>
$("#myForm").submit(function(e) {
...rest of script.

how to empty the function parameter once it passes to the function?

I am trying to send the parameter in a function but its in a loop so when i select the same function next time it first send me the previous value then send me the value that i want which causes the function to be empty and not take any value let me show you my code.
$(window).load(function(e) {
loadmore();
select_likes();
select_share();
// get_recieve_friend_requests();
// get_sent_friend_requests();
});
function loadmore() {
var lastID = $('.load-more').attr('lastID');
// alert(lastID);
jQuery.ajax({
type: 'POST',
url: '<?php echo base_url("user/get_all_post"); ?>',
data: {
id: lastID
},
dataType: 'json',
beforeSend: function(data) {
$('.load-more').show();
},
success: function(data) {
var ParsedObject = JSON.stringify(data);
var json = $.parseJSON(ParsedObject);
if (json == "") {
$("#bottom").append('<div class="btn btn-default col-md-6" >' + 'No More Results' + '</div>');
$("#Load_more_data").hide();
} else {
$postID = json[json.length - 1].id;
$('.load-more').attr('lastID', $postID);
$.each(json, function(key, data) {
var post_id = data.id;
var post_status = data.status;
var status_image = data.status_image;
var multimage = data.multimage;
if (!post_status == "" && !status_image == "") {
alert(post_id);
$("#status_data").append('<div class="media-body"><div class="input-group"><form action="" id="form_content_multimage"><textarea name="textdata" id="content_comment_multimage" cols="25" rows="1" class="form-control message" placeholder="Whats on your mind ?"></textarea><button type="submit" id="comment_button_multimage" onclick="comment_here_multimage(' + post_id + ');" >Comment</button><?php echo form_close();?></div></div></li></ul></div></div>');
}
});
}
}
});
}
function comment_here_multimage(post_id) {
$(document).on('click', '#comment_button_multimage', function(e) {
// this will prevent form and reload page on submit.
e.preventDefault();
var post_id_multimage = $('#post_id_multimage').val();
// here you will get Post ID
alert(post_id_multimage);
var Post_id = post_id;
alert(post_id);
if (post_id == post_id_multimage) {
var User_id = $('.id_data').attr('value');
var textdata = $('#content_comment_multimage').val();
alert(textdata);
alert(Post_id);
$.ajax({
type: 'POST',
url: '<?php echo base_url("user/post_comment"); ?>',
data: {
Post_id: Post_id,
User_id: User_id,
textdata: textdata
},
dataType: 'json',
success: function(data) {
console.log(data);
alert('you have like this');
jQuery('#form_content_multimage')[0].reset();
Post_id = "";
}
});
} else {
return false;
}
});
}
The post_id is being passed onclick event of the comment_here_multimage but whenver i click on it after first time same id is being passed again first then the next id passes. what can i fo to empty the post_id value once it completes.
look at these images and tell me if there is something you dont understand.
[![first time comment][1]][1]
[![second time comment][2]][2]
[![second time comment][3]][3]
[1]: https://i.stack.imgur.com/b36o4.png
[2]: https://i.stack.imgur.com/ahg3W.png
[3]: https://i.stack.imgur.com/taHAS.png

Your problem is not isolated in code. However according to my understanding.
You are binding "comment_here_multimage" function on click event of button when creating dynamic html.
Once context is loaded and user clicks that button you again binds another function on same button, which is ultimately added to the event stack.
If user clicks the button first time nothing will happen, there is no action on it. On first time it will register a handler with it.
If user click second time it will fire the handler attached on first click resulting in old postid supplied to it.
I think your problem is with passing parameter. You can set it in a custom parameter and get it later in click handler. Or you can change your handler like below.
You can change your code like this
onclick="comment_here_multimage(this,' + post_id + ');"
function comment_here_multimage(e,post_id) {
// this will prevent form and reload page on submit.
e.preventDefault();
var post_id_multimage = $('#post_id_multimage').val();
// here you will get Post ID
alert(post_id_multimage);
var Post_id = post_id;
alert(post_id);
if (post_id == post_id_multimage) {
var User_id = $('.id_data').attr('value');
var textdata = $('#content_comment_multimage').val();
alert(textdata);
alert(Post_id);
$.ajax({
type: 'POST',
url: '<?php echo base_url("user/post_comment"); ?>',
data: {
Post_id: Post_id,
User_id: User_id,
textdata: textdata
},
dataType: 'json',
success: function(data) {
console.log(data);
alert('you have like this');
jQuery('#form_content_multimage')[0].reset();
Post_id = "";
}
});
} else {
return false;
}
;
}

Using jQuery to grab attributes of link and spit as form post to another script file

I want to grab attributes of <a href> link and spit those attributes to another script file as post data. Following are the details of what I have done till now
Html link
<a href="#" class="submit-button" id="deleteRecord" attr1="xyz" attr2="abc" >Delete</a>
Now the jQuery code is as follows
$(document).ready(function(){
//Other code here
$(document).on('click','#deleteRecord',function(){
//I want to submit variables attr1 and attr2 as post data to delete_post.php
});
});
Thanks in advance.

If you're unsure how many attributes you want to post, use data attribute and loop:
<a href="#" class="submit-button" id="deleteRecord" data-something="blah" data-attr1="xyz" data-attr2="abc" >Delete</a>
Script:
$(document).ready(function(){
$(document).on('click','#deleteRecord',function(e){
e.preventDefault();
var postData = {};
$.each($(this).data(), function(k,v) {
postData[k] = v;
});
$.ajax({
type : 'post',
url : 'delete_post.php',
data : postData,
success : function (data) {
// do something with data...
console.log(data);
},
error : function (obj,status,error) {
// do something when error...
}
});
});
});

You could do this,
$(document).ready(function(){
//Other code here
$(document).on('click','#deleteRecord',function(){
//I want to submit variables attr1 and attr2 as post data to delete_post.php
var link = $("#deleteRecord");
var formData = new FormData();
// perform validations
// append to formData
formData.append("attr1", link.attr("attr1");
formData.append("attr2", link.attr("attr2");
// ajax post
$.post("")
});
});

Try this:
<a href="#" class="submit-button" id="deleteRecord" data-attr1="xyz" data-attr2="abc" >Delete</a>
JQuery:
$(document).on('click','#deleteRecord',function(){
var attr1= $(this).data('attr1');
var attr2= $(this).data('attr2');
$.ajax({
type: "POST",
url: 'delete_record.php',
contentType: "application/json; charset=utf-8",
dataType: "json",
data: '{"attr1":' + attr1+ ', "attr2":"' + attr1+ '"}',
success: function(result){
var data = result.d;
},
error: function (xhr, reason, ex) {
var err = $.parseJSON(xhr.responseText);
if (err != null && xhr.status.toString() != "0") {
showerror('Error Code : ' + xhr.status + "\nError Message :" + xhr.statusText);
}
}
});
});
Reference:
http://api.jquery.com/data/

Getting error on remove var data

I'm making hover card on click for every users so i did for one and its working but i want this to work on every user like i have given them unique title and based on that the server will get the data of that particular users but the problem is this is working on only 1 links not for all the links...maybe its because var data is kept store (please correct me if i'm wrong) so i tried to do this on ajax cache: false but didn't help then i tried return false;, return data; still not use.
So, here is the users links example :
<a class="hover" title="user101" href="#">John</a>
<a class="hover" title="user102" href="#">Tonya</a>
Ajax :
$(document).ready(function () {
$.ajaxSetup({
cache: false
});
$('.hover').click(function () {
var get_val = $('.hover').attr('title');
var data = 'vall=' + get_val + '';
$.ajax({
type: 'POST',
url: 'xx.php',
data: data,
success: function (data) {
box.dialog({
message: data
});
return false;
}
});
});
});

I would do it this way.
HTML
<div class='links'>
<a title="user101" href="#">John</a>
<a title="user102" href="#">Tonya</a>
</div>
JS
$(document).ready(function () {
$.ajaxSetup({
cache: false
});
$('.links').on('click', 'a', function (event) {
event.preventDefault();
var get_val = $(this).prop('title');
$.ajax({
type: 'POST',
url: 'xx.php',
data: {vall: get_val},
success: function (data) {
box.dialog({
message: data
});
}
});
});
});

the problem is this is working on only 1 links not for all the links...maybe its because var data is kept store (please correct me if i'm wrong)
you are wrong.. only 1 links is working beacuse you have same id for multiple elements.. each elements should have unique id.
use class instead
<a class="hover" title="user101" href="#">John</a>
<a class="hover" title="user102" href="#">Tonya</a>
and a class selector and return false after ajax success callback function , at the end
$('.hover').click(function () {
var get_val = $('.hover').attr('title');
....
$.ajax({
....
success:function(){
....
}
});
return false;
..
or simply use preventDefault() instead of return false
$('.hover').click(function (e) {
e.preventDefault();
var get_val = $('.hover').attr('title');
.....

How to pass extra parameter in jquery post request from outside click event?

Hi i have jquery request like below ,
$('#filterForm').submit(function(e){
e.preventDefault();
var dataString = $('#filterForm').serialize();
var class2011 = document.getElementById("2011").className;
//var validate = validateFilter();
alert(dataString);
if(class2011=='yearOn')
{
dataString+='&year=2011';
document.getElementById("2011").className='yearOff';
}
else
{
document.getElementById("2011").className='yearOn';
}
alert (dataString);
$.ajax({
type: "POST",
url: "myServlet",
data: dataString,
success: function(data) {
/*var a = data;
alert(data);*/
}
});
and my Form is like ,
<form method="post" name="filterForm" id="filterForm">
<!-- some input elements -->
</form>
Well, I am triggering jquery submit on submit event of a form ,(it's working fine)
I want pass one extra parameter inside form which is not in above form content but it's outside in page
it's like below
[Check this image link for code preview][1]
So how can i trigger above event , on click of , element with class yearOn ( check above html snippet ) and class yearOff , with additional parameter of year set to either 2011 or 2010

$(document).ready(function () {
$('#filterForm').submit(function (e) {
e.preventDefault();
var dataString = $('#filterForm').serialize();
if ($("#2011").hasClass('yearOn')) {
dataString += '&year=2011';
$("#2011").removeClass('yearOn').addClass('yearOff');
}
else {
$("#2011").removeClass('yearOff').addClass('yearOn');
}
$.ajax({
url: "/myServlet",
type: "POST",
data: dataString,
success: function (data) {
/*var a = data;
alert(data);*/
}
});
});
});

1.) If you are using jQuery already, you can use the $.post() function provided by jquery. It will make your life easier in most cases.
2.) I have always had a successful post with extra parameters this way:
Build you extra parameters here
commands={
year:'2011'
};
Combine it with your form serialize
var dataString=$.param(commands)+'&'+$("#filterForm").serialize();
Perform your post here
$.post("myServlet",data,
function(data) {
/*var a = data;
alert(data);*/
}
);
OR use $.ajax if you really love it
$.ajax({
type: "POST",
url: "myServlet",
data: dataString,
success: function(data) {
/*var a = data;
alert(data);*/
}
In the end, here is the full code the way you are doing it now
$('#filterForm').submit(function(e){
e.preventDefault();
var class2011 = document.getElementById("2011").className;
//var validate = validateFilter();
alert(dataString);
if(class2011=='yearOn') {
dataString+='&year=2011';
document.getElementById("2011").className='yearOff';
} else {
document.getElementById("2011").className='yearOn';
}
commands={
year:'2011'
};
var dataString=$.param(commands)+'&'+$("#filterForm").serialize();
alert (dataString);
$.ajax({
type: "POST",
url: "myServlet",
data: dataString,
success: function(data) {
/*var a = data;
alert(data);*/
}
});