I tried the code mentioned in this question
my code:
$('.form_contact')
.each(function() {
$(this).data('serialized', $(this).serialize())
})
.on('change input', function() {
$(this)
.find('button:reset, button:submit')
.attr('disabled', $(this).serialize() == $(this).data('serialized'));
})
.find('button:reset, button:submit')
.attr('disabled', true);
And it works perfectly on text input and textarea and select.
But when I upload a picture for example with the following input:
<form class="form_contact" action="/admin/edit-post-logic.php" enctype="multipart/form-data" method="POST">
<input type="file" name="avatar" accept="image/png, image/jpeg">
<button disabled="" class="button_reset_form" type="reset">ביטול שינויים</button>
<button disabled="" class="button_submit_form" type="submit" name="submit">שמירה</button>
</form>
The image appears and everything is fine, but the buttons do not become active and remain disabled, does anyone have any idea what can be done to make it work?
Serialize does not convert the file input's value so it will be ignored. So your check will not get the value. So you need to add another check for the file input.
So you can check it directly $(input[type="file"]).val()
$('.form_contact')
.each(function() {
$(this).data('serialized', $(this).serialize())
})
.on('change input', function() {
$(this)
.find('button:reset, button:submit')
.attr('disabled', $(this).serialize() == $(this).data('serialized') && !$('input[type="file"]').length);
})
.find('button:reset, button:submit')
.attr('disabled', true);
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form class="form_contact" action="/admin/edit-post-logic.php" enctype="multipart/form-data" method="POST">
<input type="file" name="avatar" accept="image/png, image/jpeg">
<button disabled="" class="button_reset_form" type="reset">ביטול שינויים</button>
<button disabled="" class="button_submit_form" type="submit" name="submit">שמירה</button>
</form>
I want to make a signup form in which user type password which contains combination of alphabet,letter and length > 6 otherwise form will not submit
here I have shown function specifically for password only but i have other function for other input types and they are working properly but it is not.
$('#password').hide();
var password = false;
$('#user_password').focusout(function() {
check_password();
});
function check_password() {
var password = new RegExp(/^(?=.*\d)(?=.*[a-z])(?=.*[A-Z])(?=.*[^a-zA-Z0-9])(?!.*\s).{8,15}$/);
var password_length = $('#user_password').val().length;
if (password.test($("#user_password").val()) && password_length > 6) {
alert("hello");
$('#password').hide();
} else {
$('#password').html('Password should be more than 6 character and should contain a letter and number');
$('#password').show();
password = true;
}
}
$('#signupfrm').submit(function() {
password = false;
check_password();
if (password == false) {
return true;
} else {
return false;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form role="form" name="signupfrm" id="signupfrm" method="post" action="<?php $_SERVER['PHP_SELF'] ?>">
//other input types above password input type
<input type="password" class="form-control" placeholder="Password..." name="user_password" id="user_password" required="">
<span id="password">
</span>
<button type="submit" class="btn btn-login" name="signup" id="signup" value="Signup">Create My Account</button>
</form>
You likely meant to do this
But you need to fix your regex https://regex101.com/r/ND19JO/1
I suggest this:
^(?=.{6,})(?=.*[a-z])(?=.*[A-Z])(?=.*[##$%^&+=]).*$
6 chars one lowerCase, one upperCase and one special char
const passwordRe = new RegExp(/^(?=.{6,})(?=.*[a-z])(?=.*[A-Z])(?=.*[##$%^&+=]).*$/);
const check_password = function() {
const pw = $('#user_password').val();
const pwOK = passwordRe.test(pw);
$('#pwError').toggle(!pwOK);
return pwOK;
}
$(function() {
$('#user_password').focusout(check_password)
$('#signupfrm').on("submit", function(e) {
if (!check_password()) e.preventDefault();
})
})
#pwError {
display: none;
}
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form role="form" name="signupfrm" id="signupfrm" method="post" action="">
<input type="password" class="form-control" placeholder="Password..." name="user_password" id="user_password" value="bla" required="">
<span id="pwError">Password should be more than 6 character and should contain a letter and number</span>
<button type="submit" class="btn btn-login" name="signup" id="signup" value="Signup">Create My Account</button>
</form>
If you have the correct regex, you don't have to test separately for the length:
var password = /^(?=.*\d)(?=.*[a-zA-Z])(?!.*\s).{7,15}$/;
It seems you also do not allow white space in your password. The way to prevent the form from submitting is to execute event.preventDefault() in your submit handler if the password is invalid. So the function check_password needs to return a flag that will be checked. I have removed the code that hides and unhides the password field to reduce the code to its essence:
function check_password() {
var password = /^(?=.*\d)(?=.*[a-zA-Z])(?!.*\s).{7,15}$/;
if (password.test($("#user_password").val())) {
return true;
}
else {
console.log('Password should be more than 6 character and should contain a letter and number and no spaces');
return false;
}
}
$(function() {
$('#signupfrm').submit(function() {
if (!check_password(event)) {
event.preventDefault();
}
});
})
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form role="form" name="signupfrm" id="signupfrm" method="post" action="<?php $_SERVER['PHP_SELF'] ?>">
<input type="password" class="form-control" placeholder="Password..." name="user_password" id="user_password" required="">
<span id="password">
</span>
<button type="submit" class="btn btn-login" name="signup" id="signup" value="Signup">Create My Account</button>
</form>
Note that you should only attempt to create the submit handler once you are sure that the document's elements have been created, i.e. element id signupform in this case. That is why that code is placed in a jQuery.ready() block (or its shortcut version). See .ready().
I am editing the file, here i can change the filename as well as i can add another file for versions, If I have chosen the file, filename edit field should be disabled immediately. I have tried this following code, but its not get disabled until i type something in filename field.
My View code:
<div class="ipfield">
<label class="plclabel">Choose file</label>
<input type="file" class="txt_box" id="newfile"
onchange="angular.element(this).scope().fileNameChanged()">
</div
<div class="ipfield" >
<label class="plclabel">File Name</label>
<input type="text" class="txt_box" ng-disabled="filechoosen" ng-
model="filenameedit" id="filenameedit">
</div>
My app.js
In my controller I have wrote function:
$scope.filechoosen = false
$scope.fileNameChanged = function() {
$scope.filechoosen= true
}
Is there any mistake in my code.
Can you please try with $scope.$apply() inside the click function
<!DOCTYPE html>
<html>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.6.4/angular.min.js"></script>
<body>
<div ng-app="myApp" ng-controller="myCtrl">
<div class="ipfield">
<label class="plclabel">Choose file</label>
<input type="file" class="txt_box" id="newfile"
onchange="angular.element(this).scope().fileNameChanged()">
</div
<div class="ipfield" >
<label class="plclabel">File Name</label>
<input type="text" class="txt_box" ng-disabled="filechoosen" ng-
model="filenameedit" id="filenameedit">
</div>
</div>
</body>
</html>
<script>
var app = angular.module('myApp', []);
app.controller('myCtrl', function($scope) {
$scope.filechoosen = false
$scope.fileNameChanged = function() {
$scope.filechoosen= true
$scope.$apply()
}
});
</script>
as below
try ng-change insted of onchange
<input type="file" class="txt_box" id="newfile"
onchange="angular.element(this).scope().fileNameChanged()">
to
<input type="file" class="txt_box" id="newfile"
data-ng-change="fileNameChanged()">
The user #sqren (https://stackoverflow.com/users/434980/sqren) has made a custom directive which will help to solve this since angularjs doesn't have any ng-change support for file.
view.html
<input type="file" custom-on-change="uploadFile">
controller.js:
app.controller('myCtrl', function($scope){
$scope.uploadFile = function(event){
var files = event.target.files;
};
});
directive.js:
app.directive('customOnChange', function() {
return {
restrict: 'A',
link: function (scope, element, attrs) {
var onChangeHandler = scope.$eval(attrs.customOnChange);
element.on('change', onChangeHandler);
element.on('$destroy', function() {
element.off();
});
}
};
});
He has also created a JSFiddle which help you to understand this.
The answer credit goes to #sqren, I am just mentioning it over here.
More information on the actual answer can be seen here - https://stackoverflow.com/a/19647381/1723852
<div>
ToDo<br>
<input ng-show="add" type="checkbox" >{{val}}
</div>
<div>
<input type="text" ng-model="ToDo">
<input type="button" ng-click="addToDo()" name="btn" placeholder="add todo here" ng-model="add" value="add" />
</div>
And the javascript:
var app = angular.module("myapp",[]);
app.controller("myctrl",function($scope,$log){
$scope.addToDo = function(){
$scope.val = $scope.ToDo;
}
});
If i click on the 'add' button, a checkbox should appear along with the text of the texxtbox. But only text is showing, no checkbox. How do i display the checkbox?
You have to call the function in your controller and update some variable to true/ false. Based on the value and using ng-if directive, you can toggle the HTML element.
$scope.displayCheckBox = false;
$scope.val = "someRandoValue";
$scope.addToDo = function() {
$scope.displayCheckBox = true;
};
<div>
ToDo<br>
<span ng-if="displayCheckBox">
<input type="checkbox" >{{val}}
</span>
</div>
When using the newer browsers that support HTML5 (FireFox 4 for example);
and a form field has the attribute required='required';
and the form field is empty/blank;
and the submit button is clicked;
the browsers detects that the "required" field is empty and does not submit the form; instead browser shows a hint asking the user to type text into the field.
Now, instead of a single text field, I have a group of checkboxes, out of which at least one should be checked/selected by the user.
How can I use the HTML5 required attribute on this group of checkboxes?
(Since only one of the checkboxes needs to be checked, I can't put the required attribute on each and every checkbox)
ps. I am using simple_form, if that matters.
UPDATE
Could the HTML 5 multiple attribute be helpful here? Has anyone use it before for doing something similar to my question?
UPDATE
It appears that this feature is not supported by the HTML5 spec: ISSUE-111: What does input.#required mean for #type = checkbox?
(Issue status: Issue has been marked closed without prejudice.)
And here is the explanation.
UPDATE 2
It's an old question, but wanted to clarify that the original intent of the question was to be able to do the above without using Javascript - i.e. using a HTML5 way of doing it. In retrospect, I should've made the "without Javascript" more obvious.
Unfortunately HTML5 does not provide an out-of-the-box way to do that.
However, using jQuery, you can easily control if a checkbox group has at least one checked element.
Consider the following DOM snippet:
<div class="checkbox-group required">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
<input type="checkbox" name="checkbox_name[]">
</div>
You can use this expression:
$('div.checkbox-group.required :checkbox:checked').length > 0
which returns true if at least one element is checked.
Based on that, you can implement your validation check.
Its a simple trick. This is jQuery code that can exploit the html5 validation by changing the required properties if any one is checked. Following is your html code (make sure that you add required for all the elements in the group.)
<input type="checkbox" name="option[]" id="option-1" value="option1" required/> Option 1
<input type="checkbox" name="option[]" id="option-2" value="option2" required/> Option 2
<input type="checkbox" name="option[]" id="option-3" value="option3" required/> Option 3
<input type="checkbox" name="option[]" id="option-4" value="option4" required/> Option 4
<input type="checkbox" name="option[]" id="option-5" value="option5" required/> Option 5
Following is jQuery script, which disables further validation check if any one is selected. Select using name element.
$cbx_group = $("input:checkbox[name='option[]']");
$cbx_group = $("input:checkbox[id^='option-']"); // name is not always helpful ;)
$cbx_group.prop('required', true);
if($cbx_group.is(":checked")){
$cbx_group.prop('required', false);
}
Small gotcha here: Since you are using html5 validation, make sure you execute this before the it gets validated i.e. before form submit.
// but this might not work as expected
$('form').submit(function(){
// code goes here
});
// So, better USE THIS INSTEAD:
$('button[type="submit"]').on('click', function() {
// skipping validation part mentioned above
});
HTML5 does not directly support requiring only one/at least one checkbox be checked in a checkbox group. Here is my solution using Javascript:
HTML
<input class='acb' type='checkbox' name='acheckbox[]' value='1' onclick='deRequire("acb")' required> One
<input class='acb' type='checkbox' name='acheckbox[]' value='2' onclick='deRequire("acb")' required> Two
JAVASCRIPT
function deRequireCb(elClass) {
el = document.getElementsByClassName(elClass);
var atLeastOneChecked = false; //at least one cb is checked
for (i = 0; i < el.length; i++) {
if (el[i].checked === true) {
atLeastOneChecked = true;
}
}
if (atLeastOneChecked === true) {
for (i = 0; i < el.length; i++) {
el[i].required = false;
}
} else {
for (i = 0; i < el.length; i++) {
el[i].required = true;
}
}
}
The javascript will ensure at least one checkbox is checked, then de-require the entire checkbox group. If the one checkbox that is checked becomes un-checked, then it will require all checkboxes, again!
I guess there's no standard HTML5 way to do this, but if you don't mind using a jQuery library, I've been able to achieve a "checkbox group" validation using webshims' "group-required" validation feature:
The docs for group-required say:
If a checkbox has the class 'group-required' at least one of the
checkboxes with the same name inside the form/document has to be
checked.
And here's an example of how you would use it:
<input name="checkbox-group" type="checkbox" class="group-required" id="checkbox-group-id" />
<input name="checkbox-group" type="checkbox" />
<input name="checkbox-group" type="checkbox" />
<input name="checkbox-group" type="checkbox" />
<input name="checkbox-group" type="checkbox" />
I mostly use webshims to polyfill HTML5 features, but it also has some great optional extensions like this one.
It even allows you to write your own custom validity rules. For example, I needed to create a checkbox group that wasn't based on the input's name, so I wrote my own validity rule for that...
we can do this easily with html5 also, just need to add some jquery code
Demo
HTML
<form>
<div class="form-group options">
<input type="checkbox" name="type[]" value="A" required /> A
<input type="checkbox" name="type[]" value="B" required /> B
<input type="checkbox" name="type[]" value="C" required /> C
<input type="submit">
</div>
</form>
Jquery
$(function(){
var requiredCheckboxes = $('.options :checkbox[required]');
requiredCheckboxes.change(function(){
if(requiredCheckboxes.is(':checked')) {
requiredCheckboxes.removeAttr('required');
} else {
requiredCheckboxes.attr('required', 'required');
}
});
});
Inspired by the answers from #thegauraw and #Brian Woodward, here's a bit I pulled together for JQuery users, including a custom validation error message:
$cbx_group = $("input:checkbox[name^='group']");
$cbx_group.on("click", function () {
if ($cbx_group.is(":checked")) {
// checkboxes become unrequired as long as one is checked
$cbx_group.prop("required", false).each(function () {
this.setCustomValidity("");
});
} else {
// require checkboxes and set custom validation error message
$cbx_group.prop("required", true).each(function () {
this.setCustomValidity("Please select at least one checkbox.");
});
}
});
Note that my form has some checkboxes checked by default.
Maybe some of you JavaScript/JQuery wizards could tighten that up even more?
I added an invisible radio to a group of checkboxes.
When at least one option is checked, the radio is also set to check.
When all options are canceled, the radio is also set to cancel.
Therefore, the form uses the radio prompt "Please check at least one option"
You can't use display: none because radio can't be focused.
I make the radio size equal to the entire checkboxes size, so it's more obvious when prompted.
HTML
<form>
<div class="checkboxs-wrapper">
<input id="radio-for-checkboxes" type="radio" name="radio-for-required-checkboxes" required/>
<input type="checkbox" name="option[]" value="option1"/>
<input type="checkbox" name="option[]" value="option2"/>
<input type="checkbox" name="option[]" value="option3"/>
</div>
<input type="submit" value="submit"/>
</form>
Javascript
var inputs = document.querySelectorAll('[name="option[]"]')
var radioForCheckboxes = document.getElementById('radio-for-checkboxes')
function checkCheckboxes () {
var isAtLeastOneServiceSelected = false;
for(var i = inputs.length-1; i >= 0; --i) {
if (inputs[i].checked) isAtLeastOneCheckboxSelected = true;
}
radioForCheckboxes.checked = isAtLeastOneCheckboxSelected
}
for(var i = inputs.length-1; i >= 0; --i) {
inputs[i].addEventListener('change', checkCheckboxes)
}
CSS
.checkboxs-wrapper {
position: relative;
}
.checkboxs-wrapper input[name="radio-for-required-checkboxes"] {
position: absolute;
margin: 0;
top: 0;
left: 0;
width: 100%;
height: 100%;
-webkit-appearance: none;
pointer-events: none;
border: none;
background: none;
}
https://jsfiddle.net/codus/q6ngpjyc/9/
I had the same problem and I my solution was this:
HTML:
<form id="processForm.php" action="post">
<div class="input check_boxes required wish_payment_type">
<div class="wish_payment_type">
<span class="checkbox payment-radio">
<label for="wish_payment_type_1">
<input class="check_boxes required" id="wish_payment_type_1" name="wish[payment_type][]" type="checkbox" value="1">Foo
</label>
</span>
<span class="checkbox payment-radio">
<label for="wish_payment_type_2">
<input class="check_boxes required" id="wish_payment_type_2" name="wish[payment_type][]" type="checkbox" value="2">Bar
</label>
</span>
<span class="checkbox payment-radio">
<label for="wish_payment_type_3">
<input class="check_boxes required" id="wish_payment_type_3" name="wish[payment_type][]" type="checkbox" value="3">Buzz
</label>
<input id='submit' type="submit" value="Submit">
</div>
</form>
JS:
var verifyPaymentType = function () {
var checkboxes = $('.wish_payment_type .checkbox');
var inputs = checkboxes.find('input');
var first = inputs.first()[0];
inputs.on('change', function () {
this.setCustomValidity('');
});
first.setCustomValidity(checkboxes.find('input:checked').length === 0 ? 'Choose one' : '');
}
$('#submit').click(verifyPaymentType);
https://jsfiddle.net/oywLo5z4/
You don't need jQuery for this. Here's a vanilla JS proof of concept using an event listener on a parent container (checkbox-group-required) of the checkboxes, the checkbox element's .checked property and Array#some.
const validate = el => {
const checkboxes = el.querySelectorAll('input[type="checkbox"]');
return [...checkboxes].some(e => e.checked);
};
const formEl = document.querySelector("form");
const statusEl = formEl.querySelector(".status-message");
const checkboxGroupEl = formEl.querySelector(".checkbox-group-required");
checkboxGroupEl.addEventListener("click", e => {
statusEl.textContent = validate(checkboxGroupEl) ? "valid" : "invalid";
});
formEl.addEventListener("submit", e => {
e.preventDefault();
if (validate(checkboxGroupEl)) {
statusEl.textContent = "Form submitted!";
// Send data from e.target to your backend
}
else {
statusEl.textContent = "Error: select at least one checkbox";
}
});
<form>
<div class="checkbox-group-required">
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
</div>
<input type="submit" />
<div class="status-message"></div>
</form>
If you have multiple groups to validate, add a loop over each group, optionally adding error messages or CSS to indicate which group fails validation:
const validate = el => {
const checkboxes = el.querySelectorAll('input[type="checkbox"]');
return [...checkboxes].some(e => e.checked);
};
const allValid = els => [...els].every(validate);
const formEl = document.querySelector("form");
const statusEl = formEl.querySelector(".status-message");
const checkboxGroupEls = formEl.querySelectorAll(".checkbox-group-required");
checkboxGroupEls.forEach(el =>
el.addEventListener("click", e => {
statusEl.textContent = allValid(checkboxGroupEls) ? "valid" : "invalid";
})
);
formEl.addEventListener("submit", e => {
e.preventDefault();
if (allValid(checkboxGroupEls)) {
statusEl.textContent = "Form submitted!";
}
else {
statusEl.textContent = "Error: select at least one checkbox from each group";
}
});
<form>
<div class="checkbox-group-required">
<label>
Group 1:
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
</label>
</div>
<div class="checkbox-group-required">
<label>
Group 2:
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
<input type="checkbox">
</label>
</div>
<input type="submit" />
<div class="status-message"></div>
</form>
I realize there are a ton of solutions here, but I found none of them hit every requirement I had:
No custom coding required
Code works on page load
No custom classes required (checkboxes or their parent)
I needed several checkbox lists to share the same name for submitting Github issues via their API, and was using the name label[] to assign labels across many form fields (two checkbox lists and a few selects and textboxes) - granted I could have achieved this without them sharing the same name, but I decided to try it, and it worked.
The only requirement for this one is jQuery, which could easily be eliminated if you wanted to rewrite it in vanilla JS. You can combine this with #ewall's great solution to add custom validation error messages.
/* required checkboxes */
jQuery(function ($) {
var $requiredCheckboxes = $("input[type='checkbox'][required]");
/* init all checkbox lists */
$requiredCheckboxes.each(function (i, el) {
//this could easily be changed to suit different parent containers
var $checkboxList = $(this).closest("div, span, p, ul, td");
if (!$checkboxList.hasClass("requiredCheckboxList"))
$checkboxList.addClass("requiredCheckboxList");
});
var $requiredCheckboxLists = $(".requiredCheckboxList");
$requiredCheckboxLists.each(function (i, el) {
var $checkboxList = $(this);
$checkboxList.on("change", "input[type='checkbox']", function (e) {
updateCheckboxesRequired($(this).parents(".requiredCheckboxList"));
});
updateCheckboxesRequired($checkboxList);
});
function updateCheckboxesRequired($checkboxList) {
var $chk = $checkboxList.find("input[type='checkbox']").eq(0),
cblName = $chk.attr("name"),
cblNameAttr = "[name='" + cblName + "']",
$checkboxes = $checkboxList.find("input[type='checkbox']" + cblNameAttr);
if ($checkboxList.find(cblNameAttr + ":checked").length > 0) {
$checkboxes.prop("required", false);
} else {
$checkboxes.prop("required", true);
}
}
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form method="post" action="post.php">
<div>
Type of report:
</div>
<div>
<input type="checkbox" id="chkTypeOfReportError" name="label[]" value="Error" required>
<label for="chkTypeOfReportError">Error</label>
<input type="checkbox" id="chkTypeOfReportQuestion" name="label[]" value="Question" required>
<label for="chkTypeOfReportQuestion">Question</label>
<input type="checkbox" id="chkTypeOfReportFeatureRequest" name="label[]" value="Feature Request" required>
<label for="chkTypeOfReportFeatureRequest">Feature Request</label>
</div>
<div>
Priority
</div>
<div>
<input type="checkbox" id="chkTypeOfContributionBlog" name="label[]" value="Priority: High" required>
<label for="chkPriorityHigh">High</label>
<input type="checkbox" id="chkTypeOfContributionBlog" name="label[]" value="Priority: Medium" required>
<label for="chkPriorityMedium">Medium</label>
<input type="checkbox" id="chkTypeOfContributionLow" name="label[]" value="Priority: Low" required>
<label for="chkPriorityMedium">Low</label>
</div>
<div>
<input type="submit" />
</div>
</form>
Really simple way to verify if at least one checkbox is checked:
function isAtLeastOneChecked(name) {
let checkboxes = Array.from(document.getElementsByName(name));
return checkboxes.some(e => e.checked);
}
Then you can implement whatever logic you want to display an error.
Here is another simple trick using Jquery!!
HTML
<form id="hobbieform">
<div>
<input type="checkbox" name="hobbies[]">Coding
<input type="checkbox" name="hobbies[]">Gaming
<input type="checkbox" name="hobbies[]">Driving
</div>
</form>
JQuery
$('#hobbieform').on("submit", function (e) {
var arr = $(this).serialize().toString();
if(arr.indexOf("hobbies") < 0){
e.preventDefault();
alert("You must select at least one hobbie");
}
});
That's all.. this works because if none of the checkbox is selected, nothing as regards the checkbox group(including its name) is posted to the server
Pure JS solution:
const group = document.querySelectorAll('[name="myCheckboxGroup"]');
function requireLeastOneChecked() {
var atLeastOneChecked = false;
for (i = 0; i < group.length; i++)
if (group[i].checked)
atLeastOneChecked = true;
if (atLeastOneChecked)
for (i = 0; i < group.length; i++)
group[i].required = false;
else
for (i = 0; i < group.length; i++)
group[i].required = true;
}
requireLeastOneChecked(); // onload
group.forEach(function ($el) {
$el.addEventListener('click', function () { requireLeastOneChecked(); })
});
Hi just use a text box additional to group of check box.When clicking on any check box put values in to that text box.Make that that text box required and readonly.
A general Solution without change the submit event or knowing the name of the checkboxes
Build a Function, which marks the Checkbox as HTML5-Invalid
Extend Change-Event and check validity on the start
jQuery.fn.getSiblingsCheckboxes = function () {
let $this = $(this);
let $parent = $this.closest('form, .your-checkbox-listwrapper');
return $parent.find('input[type="checkbox"][name="' + $this.attr('name')+'"]').filter('*[required], *[data-required]');
}
jQuery.fn.checkRequiredInputs = function() {
return this.each(function() {
let $this = $(this);
let $parent = $this.closest('form, .your-checkbox-list-wrapper');
let $allInputs = $this.getSiblingsCheckboxes();
if ($allInputs.filter(':checked').length > 0) {
$allInputs.each(function() {
// this.setCustomValidity(''); // not needed
$(this).removeAttr('required');
$(this).closest('li').css('color', 'green'); // for debugging only
});
} else {
$allInputs.each(function() {
// this.reportValidity(); // not needed
$(this).attr('required', 'required');
$(this).closest('li').css('color', 'red'); // for debugging only
});
}
return true;
});
};
$(document).ready(function() {
$('input[type="checkbox"][required="required"], input[type="checkbox"][required]').not('*[data-required]').not('*[disabled]').each(function() {
let $input = $(this);
let $allInputs = $input.getSiblingsCheckboxes();
$input.attr('data-required', 'required');
$input.removeAttr('required');
$input.on('change', function(event) {
$input.checkRequiredInputs();
});
});
$('input[type="checkbox"][data-required="required"]').checkRequiredInputs();
});
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/2.0.0/jquery.min.js"></script>
</head>
<form>
<ul>
<li><input type="checkbox" id="checkbox1" name="countries" value="Argentina" required="required">Argentina</li>
<li><input type="checkbox" id="checkbox2" name="countries" value="France" required="required">France</li>
<li><input type="checkbox" id="checkbox3" name="countries" value="Germany" required="required">Germany</li>
<li><input type="checkbox" id="checkbox4" name="countries" value="Japan" required="required">Japan</li>
<li><input type="checkbox" id="checkbox5" name="countries" value="Australia" required="required">Australia</li>
</ul>
<input type="submit" value="Submit">
</form>
Try:
self.request.get('sports_played', allow_multiple=True)
or
self.request.POST.getall('sports_played')
More specifically:
When you are reading data from the checkbox array, make sure array has:
len>0
In this case:
len(self.request.get('array', allow_multiple=True)) > 0