How to call ajax function on buttonclick in laravel? - ajax

View Code:
<script>
function getMessage(){
$.ajax({
type:'POST',
url:'/getmsg',
data:'_token = <?php echo csrf_token() ?>',
success:function(data){
$("#msg").html(data.msg);
}
});
}
</script>
<body>
<div id = 'msg'>This message will be replaced using Ajax. Click the button to replace the message.</div>
<input type="button" value="Replace Message" onclick='getMessage()'>
</body>
Here ,When I click on the button it should be replaced by the other text. But nothings appears on clicking.
Controller code:
public function index(){
$msg = "This is a simple message.";
return response()->json(array('msg'=> $msg), 200);
}

In pure js that code work fine
function getMessage(){
alert('Its working!');
}
<body>
<div id = 'msg'>This message will be replaced using Ajax.
Click the button to replace the message.</div>
<input type="button" value="Replace Message" onclick='getMessage()'>
</body>

Looks OK.
Put a breakpoint in your success and see what data is.
Or do a console.log
Mick

in your ajax code you didn't define dataType, add dataType:"json", to retrive the json data, change your ajax code as
function getMessage(){
$.ajax({
type:'POST',
url:'/getmsg',
dataType:'json',
data:{
_token = '<?php echo csrf_token() ?>'
},
success:function(data){
$("#msg").html(data.msg);
}
});

Update your code with below mentioned code, and let's try.. i will working for me..
<script type="text/javascript" charset="utf-8">
$(document).on('click', '#btnSelector', function(event) {
event.preventDefault();
/* Act on the event */
getMessage();
});
var getMessage = function(){
$.ajax({
type:'POST',
url:'/getmsg', //Make sure your URL is correct
dataType: 'json', //Make sure your returning data type dffine as json
data:'_token = <?php echo csrf_token() ?>',
success:function(data){
console.log(data); //Please share cosnole data
if(data.msg) //Check the data.msg isset?
{
$("#msg").html(data.msg); //replace html by data.msg
}
}
});
}
</script>
<body>
<div id = 'msg'>This message will be replaced using Ajax. Click the button to replace the message.</div>
<input type="button" value="Replace Message" id='btnSelector'>
</body>

<script src="http://ajax.googleapis.com/ajax/libs/jquery/1.7.1/jquery.min.js" type="text/javascript"></script>
<body>
<div id='msg'>This message will be replaced using Ajax. Click the button to replace the message.</div>
<input type="button" id="ajax_call" value="Replace Message">
</body>
<script>
$(function () {
$('#ajax_call').on('click', function () {
$.ajax({
type:'POST',
url:'<?php echo url("/getms"); ?>',
data:'_token = <?php echo csrf_token() ?>',
success:function(data){
$("#msg").html(data.msg);
},
complete: function(){
alert('complete');
},
error: function(result) {
alert('error');
}
});
});
});
</script>
Jquery onclick function: jquery onclick function not defined
Also check: Function not calling within an onclick event

Related

Ajax laravel 5.2 doesn't work

I want to develop simple ajax with laravel5.2 with this code
This oneline_help.php view
<html>
<head>
<title>Ajax Example</title>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.12.4/jquery.min.js"></script>
<script>
function getMessage(){
$.ajax({
type:'POST',
url:'/getmsg',
data:'_token = <?php echo csrf_token() ?>',
success:function(data){
$("#msg").html(data.msg);
}
});
}
</script>
</head>
<body>
<div id = 'msg'>This message will be replaced using Ajax.
Click the button to replace the message.</div>
<?php
echo Form::button('Replace Message',['onClick'=>'getMessage()']);
?>
</body>
</html>
This is the routes
Route::get('/ajax','front#support');
Route::post('/getmsg','Hello#index');
This is front #support
public function support()
{
return view('online_help', array('title' => 'Welcome', 'description' => '', 'page' => 'online_help','subscribe'=>"",'brands' => $this->brands));
}
This is Hallo #index controller
public function index(){
echo"i in in hello index";
$msg = "This is a simple message.";
return response()->json(array('msg'=> $msg), 200);
}
The button appear But when click on it, The text doesn't change .
Please tell me why and how to resolve it.
Here is my working example of AJAX....
You don't need to add token in your ajax request, make it global so with every ajax request, your CSRF token will be added automatically.
In your HTML Head section add this meta tag
<meta name="csrf-token" content="<?php echo csrf_token() ?>">
Then add this code in your Javascript tags. this will add CSRF token in every ajax request.
Note this required jquery file should be included in your page. once include call this method below from the file.
<script type="text/javascript">
var csrf_token = $('meta[name="csrf-token"]').attr('content');
$.ajaxSetup({
headers: {"X-CSRF-TOKEN": csrf_token}
});
</script>
I have modified your method....
<script>
function getMessage(){
$.ajax({
type:'POST',
url:'/getmsg',
data:'_token = <?php echo csrf_token() ?>', //remove this line
dataType:'json', // you skipped this line
beforeSend:function(){
alert('loading....'); //this will show loading alert
},
success:function(data){
$("#msg").html(data.msg);
},
error:function(){
alert('loading error...')
}
});
}
</script>

how to write laravel show method route url in jquery

i have created a link using HTML
<a style="text-decoration: none; " href="{{URL::route('category.show', $category->id) }}">{{$category->name}}</a>
instead of using the normal link, i want to use jQuery to achieve this
<input type="button" value="<?php echo $category->name; ?>" onClick="getPage(<?php echo $category->id; ?>);" /><?php ?>
<script type="text/javascript">
function getPage(id) {
$('#output').html('<img src="LoaderIcon.gif" />');
jQuery.ajax({
url: "{{ URL::route('category.show', $category->id) }}",
// i don't know how to declare the route URL in jQuery.
data:'id='+id,
type: "POST",
success:function(data){
$('#output').html(data);
}
});
}
getPage(1);
</script>
Define your URL path as below:-
<script type="text/javascript">var BASEURL = "'.$this->baseUrl.'"; </script>
<script type="text/javascript">
function getPage(id) {
$('#output').html('<img src="LoaderIcon.gif" />');
var path=BASEURL+'/category/'+id; // define path here
jQuery.ajax({
url: path,
data : {id: id},
type: "POST",
success:function(data){$('#output').html(data);}
});
}
getPage(1);
</script>
Hope it will help you :-)

Sending AJAX request before submitting the form

Problem: I'm trying to send ajax reguest, and then submit the form.
Aproaches:
1. I solved the problem by putting
success: function() {
document.myform.submit();
}
But i think it's not the most elegant solution. Can you explain me why it works only if i put document.myform.submit(); in success? Is there any other way to solve this problem?
<div class="buttons">
<div class="right">
<form name="myform" onsubmit="javascript: startAjax(); return false;" action="https://example.com/payment.php" method="get">
<input type="hidden" name="merchantId" value="<?php echo $merchantIdKZM; ?>">
<input type="submit" value="<?php echo $button_confirm; ?>" id="button-confirm2" class="button" name="PayKZM" />
</form>
</div>
</div>
<script type="text/javascript">
function startAjax() {
console.log("dafaaaa");
$.ajax({
type: 'get',
url: 'index.php?route=payment/bank_transfer/confirm',
async: 'false',
success: function() {
// location = '<?php echo $continue; ?>';
}
});
} // Calls ajaxComplete() when finished
function ajaxComplete()
{
console.log("dafa");
document.myform.submit();
}
</script>
success's function is called upon the get request receiving a valid response as #harsh pointed out. Thus it will occur after the get request. I believe something similar to the following would do as you request though I haven't tested it:
<script type="text/javascript">
$(function () {
$("#form").on('submit', function () {
var $form = $(this);
$.ajax({
type: 'GET',
url: 'index.php?route=payment/bank_transfer/confirm',
data: $form.serialize(),
async: 'false',
success: function () {
$.ajax({
type: 'GET',
url: 'https://example.com/payment.php',
data: $form.serialize(),
});
}
});
});
});
</script>

JSONP callback successful but javascript not updating .html when jQueryMobile included

I am building a PhoneGap app using jQuery Mobile. My JSONP cross domain communication works, but have an issue when jQuery Mobile is included. Without it everything works as expected, included, it stops working.
I've reduced code to simplest form - Serialize data, encode and call CrossDomain PHP file using JSONP. Execute success function. I thought it might be bad JS but "alert" works and no JS errors. But the $('#section1').html("SECTION 1 - " + data.message); doesn't update. Note: When I remove jQM it all works!
Below is the HTML and the PHP code it calls. It's as though the jQueryMobile AJAX call is interfering with the update of the .html code. Any ideas? I'm stumped.
Ajax4d.htm
<html><head><title>First jQueryMobile Example</title>
<link rel="stylesheet" href="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.css" />
<script src="http://code.jquery.com/jquery-1.7.1.min.js"></script>
<script src="http://code.jquery.com/mobile/1.1.0/jquery.mobile-1.1.0.min.js"></script>
<script>
$(document).ready(function() {
$("#foo").submit(function(event) {
event.preventDefault();
var $form = $(this),
$inputs = $form.find("input, select, button, textarea"),
serializedData = $form.serialize();
var postData = serializedData;
var urlStr = "http://www.fohost.co/testURLd.php?";
alert (urlStr + encodeURI(postData));
$.ajax({
url: urlStr,
data: encodeURI(postData),
dataType: "jsonp",
success: function(data){
alert("SUCCESS callback before HTML update: " + data.message);
$('#section1').html("SECTION 1 - " + data.message);
}
});
});
});
</script>
</head>
<body>
<section id="register_page" data-role="page" data-theme="b">
<div data-role="content">
<form id="foo" method="get" action="">
<fieldset data-role="fieldcontain">
<label for="username">Username:</label>
<input type="text" name="username" id="username" value="Chris" placeholder="Username"/>
</fieldset>
<fieldset class="ui-grid-a"><input type="submit" value="Send" /></fieldset>
</form>
</div>
<div id="section1">SECTION</div>
</section>
</body>
</html>
testURLd.php
<?php
header("content-type: application/json");
$user = $_GET['username'];
$rtnjsonobj->success = "true";
$rtnjsonobj->user = $user;
$rtnjsonobj->message = "Stored User: " . $user;
echo $_GET['callback']. '('. json_encode($rtnjsonobj) . ')';
?>
When you use the submit() method, but fire an ajax call, you aren't prohibiting the form from submitting.
Add a return false; to the end of the $("#foo").submit method. This will prohibit the page from reloading onclick.
Use pageinit instead of document ready..
check this link..
http://jquerymobile.com/test/docs/api/events.html
try this one..
$( document ).delegate("#register_page" ,"pageinit", function() {
$("#foo").submit(function(event) {
event.preventDefault();
var $form = $(this),
$inputs = $form.find("input, select, button, textarea"),
serializedData = $form.serialize();
var postData = serializedData;
var urlStr = "http://www.fohost.co/testURLd.php?";
alert (urlStr + encodeURI(postData));
$.ajax({
url: urlStr,
data: encodeURI(postData),
dataType: "jsonp",
success: function(data){
alert("SUCCESS callback before HTML update: " + data.message);
$('#section1').html("SECTION 1 - " + data.message);
}
});
});
});

Why Ajax Jquery form click not working vs div that works?

Ajax Jquery form not working vs div why its happen and how can i fix my error?
view.html-Code with form
not working
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
</head>
<body>
<form id="parse-form" action="#" method="post">
<button type="submit" id="submit-html">submit ajax request without parameters</button>
</form>
<div>array values: <div id="array-values"></div></div>
<script type="text/javascript">
$(document).ready(function() {
$('#submit-html').click(function() {
$.ajax({
url: 'controller.php',
type: 'POST',
dataType:'json',
success: function(data) {
alert("response begin");
alert(data);
$.each(data, function (i, elem) {
$('#array-values').append('<div>'+elem+'</div>');
});
}
});
});
});
</script>
</body>
</html>
view.html -form replaced by div
working
<html>
<head>
<script type="text/javascript" src="http://code.jquery.com/jquery-1.4.2.min.js"></script>
</head>
<body>
<div id="parse-form">
<button type="submit" id="submit-html">submit ajax request without parameters</button>
</div>
<div>array values: <div id="array-values"></div></div>
<script type="text/javascript">
$(document).ready(function() {
$('#submit-html').click(function() {
$.ajax({
url: 'controller.php',
type: 'POST',
dataType:'json',
success: function(data) {
alert("response begin");
alert(data);
$.each(data, function (i, elem) {
$('#array-values').append('<div>'+elem+'</div>');
});
}
});
});
});
</script>
</body>
</html>
controller.php -simple php file that return json array:
<?php
$arr=array ('a'=>1,'b'=>2,'c'=>3,'d'=>4,'e'=>5);
echo json_encode($arr);
?>
Thanks
The form has a default action with a type="submit" button, which is submitting, so you'll need to stop that from happening by adding return false or event.preventDefault() , like this:
$(document).ready(function() {
$('#submit-html').click(function(e) {
$.ajax({
url: 'controller.php',
type: 'POST',
dataType:'json',
success: function(data) {
alert("response begin");
alert(data);
$.each(data, function (i, elem) {
$('#array-values').append('<div>'+elem+'</div>');
});
}
});
return false;
//or e.preventDefault();
});
});
Without this, the form is submitting as it normally would with no JavaScript, leaving the page. So effectively it's doing a refresh, instead of AJAX submitting your form (which doesn't have time to complete...because you left :)
An element of type=submit inside a <form> will perform the form request when clicked on.
You need to abort the default behavior by running event.preventDefault() inside the click callback.
My guess is that the form is submitting and refreshing the page before the ajax has a chance to respond.
Try putting return false; at the end of the click handler.
$('#submit-html').click(function() {
$.ajax({
url: 'controller.php',
type: 'POST',
dataType: 'json',
success: function(data) {
alert("response begin");
alert(data);
$.each(data, function(i, elem) {
$('#array-values').append('<div>' + elem + '</div>');
});
}
});
return false;
});
Of course you'll have the same issue if the user hits Enter in one of the fields. Unless you're preventing the Enter key from submitting the form, you may want to the handle the event using the submit() handler.
$('#parse-form').submit(function() {
$.ajax({
url: 'controller.php',
type: 'POST',
dataType: 'json',
success: function(data) {
alert("response begin");
alert(data);
$.each(data, function(i, elem) {
$('#array-values').append('<div>' + elem + '</div>');
});
}
});
return false;
});
Try using submit() http://api.jquery.com/submit/ , this should work with keyboard events as well as clicks. You can use serialize() to get any form data into the ajax objects data variable.

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