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Jquery Validation dynamic inputs [duplicate]

I have a form on which I am using jquery.validate. I initially call validate with a set of rules and custom messages...
$("#formName").validate( {
rules: {
myExistingInput: {
required: true
}
},
messages: {
myExistingInput: {
required: "Enter something"
}
},
ignore: null, // include hidden fields (see below)
submitHandler: function(form) {
// do stuff
},
invalidHandler: function(event, validator) {
// do stuff (some of the fields may have been hidden by a collapsible panel
// if there is an error on one of those fields, expand the panel so the error
// becomes visible)
}
});
Later, I dynamically add fields to the form, and add rules for those fields too...
$("#formName").append(...);
$("#newInputName").rules("add", {
required: true,
messages: {
required: "Enter something else"
}
});
If I then submit the form, I get an error from within jquery.validate...
Exception occured when checking element newInputName, check the
'messages' method.TypeError: Unable to get property 'call' of
undefined or null reference
Debugging in the browser, I can see the error is being thrown from within the "check" function, and that the "method" variable is set to "messages".
If I remove the messages from the call to rules("add",...
$("#newInputName").rules("add", {
required: true
});
it works as expected, but obviously I now have no custom error messages.
I have seen many examples here on SO indicating that my syntax is correct. Any suggestions?
BTW: jQuery Validation Plugin - v1.11.0 - 2/4/2013

Your code seems to be working, without error, as you posted it.
DEMO with DOM ready: http://jsfiddle.net/UZTnE/
DEMO with PageInit & jQuery Mobile: http://jsfiddle.net/xJ3E2/
$(document).on("pageinit", function () {
$('#myform').validate({ // initialize the plugin
rules: {
field1: {
required: true
}
},
messages: {
field1: {
required: "Enter something"
}
}
});
$('[name*="field"]').each(function () {
$(this).rules('add', {
required: true,
messages: {
required: "Enter something else"
}
});
});
});
HTML:
<form id="myform">
<input type="text" name="field1" />
<input type="text" name="field2" />
<input type="submit" />
</form>
BTW:
this...
ignore: null, // include hidden fields
should be...
ignore: [], // include hidden fields
See: jQuery Validate - Enable validation for hidden fields

$(document).ready(function(){
$("#controlId").rules("add", {
required : true,
messages : { required : 'field is required.' }
});
});

as an answer to this old issue, I do like this to get the meassges inside the rules object.
After you have added the rules you can add messages like this:
var inputRules = $('input').rules();
inputRules.messages = {required: 'your message'};
Good luck!

check another validation rules after validating blank field

I need to validate another ready made bad words filter after validating first rules (blank fields). I have all codes in ready made, someone please help me to add this second validation in my page.
This is my jquery codes where I need to include the 2nd validation.
$(function() {
$("#review").focus(function() {
$("#comments").removeClass('hide')
});
$("#sky-form").validate({
rules: {
digits: {
required: true,
digits: true
},
name: {
required: true
}
},
messages: {
digits: {
required: 'Please enter a valid amount of Money'
},
name: {
required: 'Please enter your username',
}
},
submitHandler: function(g) {
$(g).ajaxSubmit({
beforeSend: function() {
$('#sky-form button[type="submit"]').attr('disabled', true)
},
success: function() {success funtion goes here}
This is the 2nd validation codes that I need to include on top. Mainly I need this function - bwords=badwords(textbox_val); - It will verify bad word's after blank fields is okay.
<script language="javascript" type="text/javascript">
function Message()
{
var textbox_val=document.form.textbox.value;
if(textbox_val=="")
{
alert("Please enter a message");
return false;
}
bwords=badwords(textbox_val);
if(bwords>0)
{
alert("Your message contains inappropriate words. Please clean up your message.");
document.form.textbox.focus();
return false;
}
}
</script>
Those both function is working but I just need to include both validation like 2nd one in the top first script.
Sorry for my bad Enlgish.

You can add a new rule in your code. I called this rule badWords and for me the
bad word is BAD so when you try to type BAD in the name field you will get the
validation error message.
$.validator.addMethod("badWords", function(value, element) {
if (value.trim().length == 0) {
return false;
}
if (value == 'BAD') {
return false;
}
return true;
}, "BAD WORD");
$(function () {
$("#sky-form").validate({
rules: {
digits: {
required: true,
digits: true
},
name: {
required: true,
badWords: true
}
},
messages: {
digits: {
required: 'Please enter a valid amount of Money'
},
name: {
required: 'Please enter your username',
}
}
});
});
<script src="http://code.jquery.com/jquery-1.11.3.js"></script>
<script src="http://ajax.aspnetcdn.com/ajax/jquery.validate/1.14.0/jquery.validate.js"></script>
<form id="sky-form">
<label for="ele1">Digits:</label>
<input type="text" id="ele1" name="digits"/>
<br/>
<label for="ele2">Name:</label>
<input type="text" id="ele2" name="name"/>
<br/>
<input type="submit" id="submit"/>
</form>

JQuery Validate is firing both Highlight and Unhighlight in Chrome

I am having a really strange problem with Jquery validate that only occurs in Chrome. The validation on this page seems to be firing both the Highlight and the Unhighlight functions in the .validate() function so if I dont fill out the form it cycles through each element and applies the "invalid" class in the highlight function but then for some reason it goes through and immediately applies the code in unhighlight and I cant work out why?
JS
$(document).ready(function () {
//Validation for form fields on Payment form
/*This adds a method to test whether value is equal to placeholder, and if it is, don't consider it filled out. This is necessary to circumvent IE placeholder plugin*/
jQuery.validator.addMethod("notEqual", function (value, element, param) {
return this.optional(element) || value != param;
}, "Required.");
$('#payment-form').validate({
onfocusout: function (element) {
$(element).valid();
},
rules: {
"data[Payment][card_holder]": { required: true, minlength: 2 },
"data[Payment][card_number]": { required: true, creditcard: true },
"data[User][first_name]": { required: true, notEqual: "First Name" },
"data[User][last_name]": { required: true, notEqual: "Last Name" },
"data[UserDetail][company]": { required: true },
"data[UserDetail][job_title]": { required: true },
"data[UserDetail][telephone]": { required: true },
"data[User][email]": {
required: true,
email: true,
remote: {
url: "/usermgmt/users/email_exists",
type: "post"
}
},
"data[User][password]": { required: true },
"data[Address][billing_line_1]": { required: true },
"data[Address][billing_line_2]": { required: true },
"data[Address][billing_state]": { required: true },
"data[Address][billing_postcode]": { required: true },
credit_exp_month: { required: true, notEqual: "MM", number: true, max: 12, minlength: 2, maxlength: 2 },
credit_exp_year: { required: true, notEqual: "YYYY", number: true, minlength: 2, maxlength: 4 },
"data[Payment][cvv]": { required: true, number: true, minlength: 3, maxlength: 4 },
},
errorClass: 'error',
unhighlight: function (element, errorClass, validClass) {
$(element).removeClass(errorClass).addClass(validClass);
validateIcon(element);
},
highlight: function (element, errorClass, validClass) {
$(element).addClass(errorClass).removeClass(validClass);
validateIcon(element);
}
});
function validateIcon(element) {
$(element).siblings('span.validate_icon').remove();
if ($(element).hasClass('error')) {
alert("error");
$(element).closest('li').find('label>span:first').html('<span class="validate_icon invalid"> <span class="icon-stack"><i class="icon-sign-blank icon-stack-base"></i><i class="icon-exclamation"></i></span></span>');
} else if ($(element).hasClass('valid')) {
alert("valid");
$(element).closest('li').find('label>span:first').html('<span class="validate_icon valid"> <span class="icon-stack"><i class="icon-sign-blank icon-stack-base"></i><i class="icon-ok"></i></span></span>');
}
}
});
PHP Code that handles the email exists:
public function email_exists() {
$this->autoRender = false;
if($this->request->is('post')) {
$this->RequestHandler->respondAs('json');
if(!$this->User->findByEmail($this->request->data['User']['email'])) {
echo json_encode(true);
} else {
echo json_encode(false);
}
}
}
I have also tried simply echo "true"; and echo 1; I have tried everything suggested in the comments below but regardless - the problem exists.

I had the exact same problem, and by seeing your code I might say that you have the same cause, but let's break it down.
Checking
First, let's check that my comment is relevant, and I can actually help you. Comment the remote param on your email validation set up:
"data[User][email]": {
required: true,
email: true
},
Is your problem fixed? Great, keep reading (feel free to skip to the fix section).
The problem
1. When the plugin validates, it creates a list of errors, stored into an array called "errorList".
2. Have you ever used the showErrors functionality? It's there to show all the errors, but also to target-show errors. If you want to show specific errors, or to show errors that are out of the limits of the plugin (ej.: a 60s timeout has expired), you can use that method.
3. When showing specific errors, what that method does is to add the specified error(s) to the errorList.
4. The problem is that before adding new errors that list is cleared up (I didn't write the code, but it seems that it's done in order to keep that list nice and clean, and not having two different errors of the same input).
5. Now, when the email is checked remotely we are in the same situation of a timeout. So it uses the showErrors functionality, and that means that the form is validated when click, and some seconds later (with the PHP response), the email error is shown, but clearing up the errorList. That's what is happening.
The fix
If you are not going to do explicit use of showErrors, truth is that you can comment the line where the errorList is cleared up:
showErrors: function( errors ) {
if ( errors ) {
// add items to error list and map
$.extend( this.errorMap, errors );
//this.errorList = [];
for ( var name in errors ) {
...
If you are going to do an explicit use of that method, you can try this version instead. Doesn't clear the error list, but checks that you're not adding the same error twice:
showErrors: function( errors ) {
if ( errors ) {
// add items to error list and map
$.extend( this.errorMap, errors );
for ( var name in errors ) {
var tempElem = this.findByName(name)[0];
this.errorList = jQuery.grep(this.errorList, function( error, i ) {
return error.element != tempElem;
});
this.errorList.push({
message: errors[name],
element: tempElem
});
}
Let me know if worked or you have any problem.

This code of yours can be a problem...
onfocusout: function (element) {
$(element).valid();
},
You cannot put the .valid() method inside of the .validate() method without causing some serious issues.
This is the default onfocusout function from the plugin...
onfocusout: function( element, event ) {
if ( !this.checkable(element) && (element.name in this.submitted || !this.optional(element)) ) {
this.element(element);
}
}
What's the purpose of your custom onfocusout function? Generally, it's not needed since the onfocusout trigger is already built into the functionality. One constructs their own onfocusout function only to over-ride the built-in default. So if you want the default onfocusout behavior, just remove the onfocusout option entirely.
If you really want to emulate something like in your code, it would need to look like this...
onfocusout: function(element, event) {
this.element(element);
}
Quote OP Comment:
"as I said im not really sure what good it would do you: (I cant get it to format here..)"
$this->RequestHandler->respondAs('json');
if(!$this->User->findByEmail($this->request->data['User']['email'])) {
return json_encode(true);
} else {
return json_encode(false);
}
It does a lot of good to show any code that could be affecting the problem, especially any code that's wrong. This could have been solved two days ago.
return is for returning to the PHP function that called this one. In other words, return will do nothing here since there is no PHP function to return to. On the other hand, echo will output from PHP... and that's what you need for jQuery Validate remote...
if (....) {
echo true;
} else {
echo false;
}
PHP return versus PHP echo
Also see: https://stackoverflow.com/a/21313309/594235

how to check for HTML tags and then add error in jQuery Validation

I am trying to validate my form using jQuery Validation plugin.
Here is the code
$(document).ready(function(){
var productsForm=$('#products-form');
productsForm.validate({
//debug:true,
invalidHandler: function(event, validator) {
// 'this' refers to the form
var errors = validator.numberOfInvalids();
if (errors) {
var message = errors == 1
? 'You missed 1 field. It has been highlighted'
: 'You missed ' + errors + ' fields. They have been highlighted';
$("div.error span").html(message);
$("div.error").show();
} else {
$("div.error").hide();
}
},
rules:{
productName: {
required: true,
minlength:2,
//here i tried to create a function
onfocusout: function(element){
var myValue=$(element).val();
if(myValue.match(/[<>$]/))
{
alert('Please enter the Name without any tags.');
$(element).valid=false;
}
}
},
productType: {
required: true,
minlength:2,
},
productBrand: {
required: true,
minlength:2,
},
description: {
required: true,
minlength:10,
maxlength:150,
},
updatedBy:{
required:true,
minlength:2,
}
},
messages:{
productName:{
required: "Please enter the productName",
minLength: "The name should be atleast 2 characters long",
},
productType: {
required: "Please enter the productType",
minlength:"The type should be atleast 2 characters long",
},
productBrand: {
required: "Please enter the productBrand",
minlength:"The Brand Name should be atleast 2 characters long",
},
description: {
required: "Please describe your product",
minlength: "The description should be atleast 10 characters long",
maxlength: "You can not enter more than 150 characters",
},
updatedBy:{
required: "PLease Your name",
minlength: "The name should be atleast 2 characters long",
}
},
submitHandler: function(form){
if(productsForm.valid())
{
alert('tada');
return false;
}
else
{
alert('not valid');
return false;
}
}
});
});
Now I am trying to create a function which checks whether the input values contain HTML tags or not. If yes then show the error msg and do not submit the form. But I do not know how to do that. Can anyone help please?
I tried to create a function as onfocusout but do not know how to add error.

Quote Title:
"how to check for HTML tags and then add error in jQuery Validation"
If you're using the jQuery Validate plugin, you only need to specify a rule for a field and the corresponding error message is toggled automatically. There are built-in methods for creating custom rules and built-in methods for over-riding any error text with your custom text. The plugin automatically blocks the form submission during any error including errors triggered from your custom rules.
Quote OP:
"Now I am trying to create a function which checks whether the input
values contain html tags or not. If yes then show the error msg and
do not submit the form."
Your second sentence merely describes what every single validation rule does. Checks the input data and blocks submission on failure of this test. Your first sentence is what you want your rule to do... make sure the input contains no tags.
Quote OP:
"I tried to create a function as onfocusout but do not know how to add error."
Your code attempt indicates that you're making this way way more complicated than it needs to be. You do not need to tinker with any single callback function of the plugin just to create one new rule... at that point you might as well write your own validation plugin from scratch.
To achieve what you want, you simply need to use the addMethod method to write your own custom jQuery Validation rule. In this case, you'll need a regex that will exclude HTML tags... perhaps by only allowing letters and numbers. (Tweak the regex or replace the function with anything you see fit).
Refer to this really basic example:
jQuery.validator.addMethod("noHTML", function(value, element) {
// return true - means the field passed validation
// return false - means the field failed validation and it triggers the error
return this.optional(element) || /^([a-z0-9]+)$/.test(value);
}, "No HTML tags are allowed!");
$('#myform').validate({
rules: {
field1: {
required: true,
noHTML: true
}
}
});
DEMO: http://jsfiddle.net/mM2JF/
However, the additional-methods.js file already includes various rules that would automatically exclude any HTML...
letterswithbasicpunc => "Letters or punctuation only please"
alphanumeric => "Letters, numbers, and underscores only please"
lettersonly => "Letters only please"
$('#myform').validate({
rules: {
field1: {
required: true,
alphanumeric: true // <- will also not allow HTML
}
}
});
DEMO 2: http://jsfiddle.net/mM2JF/1/

Try this Code to Validate the HTML tags
jQuery.validator.addMethod("noHTMLtags", function(value, element){
if(this.optional(element) || /<\/?[^>]+(>|$)/g.test(value)){
return false;
} else {
return true;
}
}, "HTML tags are Not allowed.");
$('#form').validate({
rules: {
message: {
required: true , noHTMLtags: true
}
}});
I Hope this is also a good example.

Here is the exmple of what i hve done
$.validator.addMethod("CHECKDOB", function(value, element) {
return this.optional(element) || check_blank_dob(element);
}, "Please Enter Birth Date");
//See checkdob function is added to validator
Now
In rules
rules:{
<%=txtfirstname.UniqueID %>: {required: true}, <%=txtlastname.UniqueID %>: {required: true},
<%=txtdateofbirth.UniqueID %>: { required: true,
CHECKDOB:"Please Enter Birth Date",//see here i have called that function
date:true
},
now messages
messages: {
<%=txtfirstname.UniqueID %>:{required: "Please Enter First Name"},
<%=txtlastname.UniqueID %>:{required: "Please Enter Last Name"},
<%=txtdateofbirth.UniqueID %>:{
required: "Please Enter Birth Date",
CHECKDOB:"Please Enter Birth Date",
date:"Invalid Date! Please try again"
},
Here is your function
function check_blank_dob()
{
var birth=document.getElementById("<%=txtdateofbirth.ClientID%>").value
if(birth=="__/__/____")
{
return false;
}
return true;
}
See this function i have called at checkdob function when adding method to validator
This is just the example how to add you have to implement your method i hope this will help you regards....:)

I use regular expression for preventing HTML tags in my textarea
$.validator.addMethod(
"no_html",
function(value, element) {
if(/<(.|\n)*?>/g.test( value )){
return false;
}else{
return true;
}
},
"HTML tag is not allow."
);
$('#myform').validate({
rules: {
field1: {
required: true,
no_html: true
}
}
});

jQuery Validation plugin with CKEditor

I know this question has been asked before and I have read all the previous questions and I still can't get the jQuery validator to properly validate CKEditor fields.
My form is below:
<form id="faq-form">
<p>
<label>Title:</label>
<input type="text" id="faq-title" name="faq-title" class="faq-title" />
</p>
<p>
<label for="question">Question:</label>
<textarea name="question" id="question"></textarea>
</p>
<p>
<label for="answer">Answer:</label>
<textarea name="answer" id="answer"></textarea>
</p>
<p>
<input id="submit-faq" name="submit-faq" type="submit" value="Submit" />
</p>
</form>
Both textareas are converted to CKEditor fields using:
<script>
CKEDITOR.replace('question', { toolbar : 'forum' });
CKEDITOR.replace('answer', { toolbar : 'forum' });
</script>
When I try to validate, only the title field gets validated. I am not sure what I am doing wrong. Here is my javascript code for validating (the following sits in a jQuery document ready function).
$('#faq-form').submit(function() {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
// Validate the form
if ( ! $('#faq-form').validate({
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
}
}).form()) {
console.log('Form errors');
return false;
}
Once the validation is complete, I will use a $.post method instead of a normal form get or post so I can update my page without reloading. The $.post comes after the validation method but I didn't think it was necessary to show.

I was finally able to get it working. CKEditor hides the textareas when it runs and the jQuery validator ignores hidden elements. In the validate function, this can be changed. So my new code is below:
if ( ! $('#faq-form').validate({
ignore: "input:hidden:not(input:hidden.required)",
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
},
messages: {
'faq-title': {
required: "The title field is required"
},
answer: {
required: "The answer field is required"
},
question: {
required: "The question field is required."
}
},
errorElement: "span",
errorPlacement: function (error, element) {
error.appendTo(element.prev());
}
}).form()) {
console.log('Form errors');
return false;
}
I also added messages and modified the element and location of the errors when they are displayed. I figured that might be helpful to anyone else who stumbles across this.

Ok lets cut it down, I have spent hours to get the error message of CKEditor in the right place, because every time it showing up on top of the CKEditor or just after the label which is not look nice.
As CKEditor hides the textarea and put its span tag right after the textarea. Please use browser tool to inspect the dom elements, then you can see the textarea is hidden.
I just adjusted the code to get the error message label/span just under the CKEditor.
$('#messageForm').validate(
{
ignore: 'input:hidden:not(input:hidden.required)',
rules: {
msgTitle: {
minlength: 2,
required: true
},
msgText: {
minlength: 2,
required: true
}
},
errorElement: "span", // can be 'label'
errorPlacement: function (error, element) {
if ($(element).attr('id') == 'msgText') {
$('#cke_msgText').after(error);
} else {
element.after(error);
}
},
highlight: function (element) {
$(element).closest('.form-group').removeClass('text-success').addClass('error');
},
success: function (element) {
element
.closest('.form-group').removeClass('error').addClass('text-success');
}
});
Here, 'msgText' is the id of the textarea which is hidden, and cke_msgText id of the ckeditor, you can find the id by inspecting the dom element, perhaps ckeditor takes the id attribute of textarea and prefix 'cke_' with it.

My guess is that CKEditor doesn't play nicely with validation, at least by default. You'd need to remove the editors before validation (CKEditor works by hiding the thing being edited and then inserting an iframe and sticking the editable content in there; when you remove the editor it shuts down the iframe and copies over the content -- at least that's from memory). My guess is that if you inspect the DOM you'll see that the content of the textareas isn't changing.
You may find NicEdit more useful in this context -- see this thread:
https://stackoverflow.com/questions/3914510/wysiwyg-editor-without-iframe

Your code:
$('#faq-form').submit(function() {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
if ( ! $('#faq-form').validate({
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
}
}).form()) {
console.log('Form errors');
return false;
}
....
You should not use .validate() inside a conditional. That's what the .valid() method is for. .validate() is only used for initializing the plugin once on DOM ready with your rules & options. Once initialized, then .valid() can be used inside conditionals to trigger a test and return a boolean.
Also, you should not have .validate() inside of submit handler. The plugin has it's own submitHandler callback function.
Your code should be changed into something like:
$(document).ready(function() {
$('#faq-form').validate({ // initialize the plugin
// rules & options,
rules: {
'faq-title': {
required: true,
minlength: 5
},
answer: {
required: true,
minlength: 20
},
question: {
required: true,
minlength: 20
}
},
submitHandler: function (form) {
// Update textareas with ckeditor content
for (var i in CKEDITOR.instances) {
CKEDITOR.instances[i].updateElement();
$.trim($('#' + i).val());
}
}
})
if ( ! $('#faq-form').valid() ) { // test the form for validity
console.log('Form errors');
return false;
}
});

Best solution I found so far, simple and elegant:
$('#form1').validate({
ignore: [],
rules: {
corpo : {
required: function()
{
CKEDITOR.instances.corpo.updateElement();
}
}
}
})
Font: http://devlog.waltercruz.com/usando-ckeditor-e-jquery-validate-juntos

<form>
<textarea class="ckeditor" id="noticeMessage" name="message"></textarea>
</form>
<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
<form>
<textarea class="ckeditor" id="noticeMessage" name="message"></textarea>
</form>
<script type="text/javascript" src="ckeditor/ckeditor.js"></script>
<script type="text/javascript">
$("form").submit( function() {
var messageLength = CKEDITOR.instances['noticeMessage'].getData().replace(/<[^>]*>/gi, '').length;
if( !messageLength ) {
alert( 'Please enter a message' );
}
}
</script>
see for full reference
----------------------
http://christierney.com/2012/12/14/ckeditor-4-required-field-validation/