This question already has answers here:
JavaScript code to stop form submission
(14 answers)
Closed 2 years ago.
I'm trying to create a form that when submitted, creates a new object with the input values, and then stores that object in an array.
For some reason, the array is "resetting" and not saving the objects.
let myLibrary = []
function Book(title,author,pages,read) {
this.title = title
this.author = author
this.pages = pages
this.read = read
myLibrary.push(this)
}
function checkForm(){
let name = document.querySelector('input[name="title"]').value
let author = document.querySelector('input[name="author"]').value
let pages = document.querySelector('input[name="pages"]').value
let read = document.querySelector('input[name="read"]').checked
new Book(name,author,pages,read)
document.getElementById('library').innerText = JSON.stringify(myLibrary)
}
const submit = document.getElementById('btn1')
submit.addEventListener("click",checkForm);
<input name='title' />
<input name='author' />
<input name='pages' />
<input name='read' />
<button id='btn1'>Click me! </button>
<div >Library:</div>
<div id='library'></div>
You are listening for a click event on the submit button, however the submit button also submits the form. Forms will naturally cause a refresh if the default "submit" event is not prevented.
Instead you could listen to your forms submit event and prevent it:
// Query select the form and
form.addEventListener('submit', function(e){
e.preventDefault();
checkForm();
});
As you have a form in your html, you'll have to prevent its default submission event which results in a reload of the page with preventDefault(). You could, for example, change your checkForm() and add the e.preventDefault() there to prevent the form from being submitted.
let myLibrary = []
function Book(title, author, pages, read) {
this.title = title
this.author = author
this.pages = pages
this.read = read
}
function addtoLibrary(title, author, pages, read) {
let book = new Book(title, author, pages, read)
myLibrary.push(book)
}
let table = document.querySelector(".table");
myLibrary.forEach(function(e) {
table.innerHTML += `<tr><td>${e.title}</td>
<td>${e.author}</td>
<td>${e.pages}</td>
<td>${e.read}</td>
</tr>
`
});
// Selectors
let add = document.querySelector("#add")
let submit = document.querySelector("#submit")
function checkForm(e) {
e.preventDefault(); // prevent the form from being submitted
let name = document.querySelector('input[name="title"]').value
let author = document.querySelector('input[name="author"]').value
let pages = document.querySelector('input[name="pages"]').value
let read = document.querySelector('input[name="read"]').checked
addtoLibrary(name, author, pages, read)
console.log(myLibrary);
}
submit.addEventListener("click", checkForm);
html,
body {
height: 100%;
}
* {
font-family: Graphik Regular;
}
ul {
list-style-type: none;
}
table,
th,
td {
border-collapse: collapse;
text-align: left;
border: 1px solid black;
}
table {
width: 100%;
}
td,
th {
height: 50px;
padding: 10px;
width: 200px;
min-width: 100px;
}
th {
background-color: gray;
margin-bottom: 50px;
}
.headers {
margin-bottom: 5px;
}
button {
background-color: #4CAF50;
/* Green */
border: none;
color: white;
padding: 15px 32px;
text-align: center;
text-decoration: none;
display: inline-block;
font-size: 16px;
margin-top: 30px;
}
.pop-container {
text-align: center;
/* display: none;*/
position: fixed;
left: 0;
top: 0;
width: 100%;
height: 100%;
background-color: rgba(0, 0, 0, 0.6);
}
form {
background-color: gray;
}
input {
font-size: 20px;
width: 300px;
margin-bottom: 5px;
}
<!DOCTYPE html>
<meta charset="UTF-8">
<html lang="en">
<head>
<link rel="stylesheet" type="text/css" href="style.css">
</stylesheet>
<script type="text/javascript" src="http://livejs.com/live.js"></script>
</head>
<body>
<div class="pop-container">
<form id="bookquery">
<input type="text" name="title" id="title" placeholder="Title"></br>
<input type="text" name="author" placeholder="Author"></br>
<input type="text" name="pages" placeholder="Pages"></br>
<p>Have you read it?<input type="checkbox" placeholder="Title" name="read"></p>
</br>
<button id="submit">Submit</button>
</form>
</div>
<table class="headers">
<th>Title</th>
<th>Author</th>
<th>Pages</th>
<th>Read</th>
</table>
<table class="table tstyle">
</table>
<button id="add">Add new book</button>
<script src="script.js"></script>
</body>
</html>
function checkForm(e) {
e.preventDefault(); // prevent the form from being submitted
let name = document.querySelector('input[name="title"]').value
let author = document.querySelector('input[name="author"]').value
let pages = document.querySelector('input[name="pages"]').value
let read = document.querySelector('input[name="read"]').checked
addtoLibrary(name, author, pages, read)
}
The above answers didn't quite work for me so here is a simplified, fully working example. As a general guide to getting things like this to work I always try to simplify as much as possible.
index.html
<html>
<header></header>
<body>
<div>
<form id="myForm">
<label for="title">title:</label><br>
<input type="text" id="title" name="title" value="title"><br>
<button id="submit">Submit</button>
</form>
</div>
<script type="text/javascript" src="functions.js"></script>
</body>
</html>
functions.html
let myLibrary = [];
function Book(title) {
this.title = title;
myLibrary.push(this);
}
function checkForm(){
let title = document.querySelector('input[name="title"]').value;
new Book(title);
myLibrary.forEach(function(element) {
console.log(element);
});
}
document.getElementById("myForm").addEventListener(
'submit',
function(e) {
e.preventDefault();
checkForm();
}
);
I'll leave it to you to add back in the other fields on the Book object.
I am not sure because I've tried to illustrate that your code actually stores the object. It's either that your form refreshes the page... that might be the cause but as far as the code you've provided is concerned, everything works as expected.
let myLibrary = []
function Book(title,author,pages,read) {
this.title = title
this.author = author
this.pages = pages
this.read = read
myLibrary.push(this)
}
function checkForm(name,author,pages,read)
{
new Book(name,author,pages,read)
}
checkForm("Chris","Jerry","56","65");
checkForm("Sean","John","56","65");
// Both Objects are still stored...
console.log(myLibrary);
Related
I am working on a library project but my function called changeColor inside the readStatus function does not appear to be working.
I've tried separating it but having two event listeners on the same button does not appear to work. My goal is for readStatus function to allow a user to update the status of a book from no to yes when finished with the book.
Likewise, I want to change the background color of the div (class: card) when yes to be green and no to be red.
Can anyone tell me what I'm doing wrong?
let myLibrary = [];
function Book(title, author, pages, read) {
this.title = title;
this.author = author;
this.pages = pages;
this.read = read;
}
function addBookToLibrary(title, author, pages, read) {
let book = new Book(title, author, pages, read);
myLibrary.push(book);
displayOnPage();
}
function displayOnPage() {
const books = document.querySelector(".books");
const removeDivs = document.querySelectorAll(".card");
for (let i = 0; i < removeDivs.length; i++) {
removeDivs[i].remove();
}
let index = 0;
myLibrary.forEach((myLibrarys) => {
let card = document.createElement("div");
card.classList.add("card");
books.appendChild(card);
for (let key in myLibrarys) {
let para = document.createElement("p");
para.textContent = `${key}: ${myLibrarys[key]}`;
card.appendChild(para);
}
let read_button = document.createElement("button");
read_button.classList.add("read_button");
read_button.textContent = "Read ";
read_button.dataset.linkedArray = index;
card.appendChild(read_button);
read_button.addEventListener("click", readStatus);
let delete_button = document.createElement("button");
delete_button.classList.add("delete_button");
delete_button.textContent = "Remove";
delete_button.dataset.linkedArray = index;
card.appendChild(delete_button);
delete_button.addEventListener("click", removeFromLibrary);
function removeFromLibrary() {
let retrieveBookToRemove = delete_button.dataset.linkedArray;
myLibrary.splice(parseInt(retrieveBookToRemove), 1);
card.remove();
displayOnPage();
}
function readStatus() {
let retrieveBookToToggle = read_button.dataset.linkedArray;
Book.prototype = Object.create(Book.prototype);
const toggleBook = new Book();
if (myLibrary[parseInt(retrieveBookToToggle)].read == "yes") {
toggleBook.read = "no";
myLibrary[parseInt(retrieveBookToToggle)].read = toggleBook.read;
} else if (myLibrary[parseInt(retrieveBookToToggle)].read == "no") {
toggleBook.read = "yes";
myLibrary[parseInt(retrieveBookToToggle)].read = toggleBook.read;
}
let colorDiv = document.querySelector(".card");
function changeColor() {
for (let i = 0; i < length.myLibrary; i++) {
if (myLibrary[i].read == "yes") {
colorDiv.style.backgroundColor = "green";
} else if (myLibrary[i].read == "no") {
colorDiv.style.backgroundColor = "red";
}
}
}
displayOnPage();
}
index++;
});
}
let add_book = document.querySelector(".add-book");
add_book.addEventListener("click", popUpForm);
function popUpForm() {
document.getElementById("data-form").style.display = "block";
}
function closeForm() {
document.getElementById("data-form").style.display = "none";
}
let close_form_button = document.querySelector("#close-form");
close_form_button.addEventListener("click", closeForm);
function intakeFormData() {
let title = document.getElementById("title").value;
let author = document.getElementById("author").value;
let pages = document.getElementById("pages").value;
let read = document.getElementById("read").value;
if (title == "" || author == "" || pages == "" || read == "") {
return;
}
addBookToLibrary(title, author, pages, read);
document.getElementById("data-form").reset();
}
let submit_form = document.querySelector("#submit-form");
submit_form.addEventListener("click", function (event) {
event.preventDefault();
intakeFormData();
});
* {
margin: 0;
padding: 0;
background-color: rgb(245, 227, 205);
}
.books {
display: grid;
grid-template-columns: 1fr 1fr 1fr 1fr;
text-align: center;
margin: 20px;
gap: 10px;
}
.card {
border: 1px solid black;
border-radius: 15px;
padding: 10px;
}
.forms {
display: flex;
flex-direction: column;
align-items: center;
}
form {
margin-top: 20px;
}
select,
input[type="text"],
input[type="number"] {
width: 100%;
box-sizing: border-box;
}
.buttons-container {
display: flex;
margin-top: 10px;
}
.buttons-container button {
width: 100%;
margin: 2px;
}
.add-book {
margin-top: 20px;
}
#data-form {
display: none;
}
.read_button {
margin-right: 10px;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8" />
<meta http-equiv="X-UA-Compatible" content="IE=edge" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="style.css" />
<title>Document</title>
</head>
<body>
<div class="container">
<div class="forms">
<button class="add-book">Add Book To Library</button>
<div class="pop-up">
<form id="data-form">
<div class="form-container">
<label for="title">Title</label>
<input type="text" name="title" id="title" />
</div>
<div class="form-container">
<label for="author">Author</label>
<input type="text" name="author" id="author" />
</div>
<div class="form-container">
<label for="pages">Pages</label>
<input type="number" name="pages" id="pages" />
</div>
<div class="form-container">
<label for="read">Read</label>
<select name="read" id="read">
<option value="yes">Yes</option>
<option value="no">No</option>
</select>
</div>
<div class="buttons-container">
<button type="submit" id="submit-form">Submit Form</button>
<button type="button" id="close-form">Close Form</button>
</div>
</form>
</div>
</div>
<div class="books"></div>
</div>
<script src="script.js"></script>
</body>
</html>
A couple things needed.
First, you should put the readStatus and removeFromLibrary functions outside of the foreach loop.
Then I think you are wanting changeColor to run whenever readStatus is run. Either put the changeColor code directly inside the readStatus or put changeColor() inside readStatus.
I think you want the Book to not be a function but a class.
I am using mvc .net core for a project and I have a view page. I need some id values from this page for using them inside partial view. Because I am using those id values for foreign key in another table to post. From main page these values posts in database correctly. I always post 5 values and always 5 id there in database I saw when I checked. But when I click the accordion this id always turns first id from these 5 values. if I posted as 6,7,8,9,10 it just turns me 6 and it doesn't matter if I clicked the last one in the page or first one. But context and title always correct when I check it from database and from page.
I tried a few jquery code but they didn't work correctly. I need the correct id values when I click other accordions.
I would be glad for any kind of help. Thanks a lot.
Here is my code:
#model IEnumerable<match>
#{
ViewData["Title"] = "Home Page";
}
<head>
<script src="~/lib/jquery/dist/jquery.js"></script>
<script src="~/lib/jquery/dist/jquery.min.js"></script>
<script src="~/lib/jquery-validation/dist/jquery.validate.js"></script>
<script src="~/lib/jquery-validation/dist/jquery.validate.min.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.js"></script>
<script src="~/lib/jquery-validation-unobtrusive/jquery.validate.unobtrusive.min.js"></script>
<style>
.accordion {
background-color: #eee;
color: #444;
cursor: pointer;
padding: 18px;
width: 100%;
border: none;
text-align: left;
outline: none;
font-size: 15px;
transition: 0.4s;
}
.active, .accordion:hover {
background-color: #ccc;
}
.panel {
padding: 0 18px;
display: none;
background-color: white;
overflow: hidden;
}
</style>
</head>
<body>
<h4>Title List:</h4>
<table class="table table-hover">
#foreach (var item in Model)
{
<tr class="yzt">
<td class="xyz" id="item_title" >
<button class="accordion" id="title" >#Html.DisplayFor(modelItem => item.title)</button>
<div class="panel">
<p id="modelId" hidden>#Html.DisplayFor(modelItem=>item.Id)</p>
<p>#Html.DisplayFor(modelItem => item.context)</p>
#await Html.PartialAsync("Create", item.Exams#*, Exams*#)
</div>
</td>
</tr>
}
</table>
<script>
var acc = document.getElementsByClassName("accordion");
var i;
for (i = 0; i < acc.length; i++) {
acc[i].addEventListener("click", function () {
this.classList.toggle("active");
var panel = this.nextElementSibling;
if (panel.style.display === "block") {
panel.style.display = "none";
} else {
panel.style.display = "block";
}
});
}
//document.querySelectorAll('.accordion').forEach(link => this.addEventListener('click', myFunction))
//function myFunction() {
// document.getElementById("matchId").value = document.getElementById("modelId").innerHTML;
// console.log("value is" + document.getElementById("matchId").value);
//}
document.querySelectorAll('.panel').forEach(link => this.addEventListener('click', myFunction))
function myFunction() {
document.getElementById("matchId").value = document.getElementById("modelId").innerHTML;
console.log("value is" + document.getElementById("matchId").value);
}
//document.querySelectorAll(".accordion")
//document.getElementById("match_title").value = document.getElementById("title").innerHTML;
</script>
</body>
I recommend you to write like this:
<div class="panel" id=#item.Id onclick="test(#item.Id)">
function test(val){
alert(val);
}
Your code will create multiple having id "title" and multiple having id "modelId", and this is also the reason why you always get the id from the first item, what you write document.getElementById("modelId").innerHTML will always get the first dom element which id = "modelId"
Requirement:
User will enter "Number of Containers" and "Number of Controls"
Random input elements (numeric, checkbox, etc) will be created and equally distributed among the containers.
When user clicks on "Create" again, the input elements shown in the UI will be deleted and new set of random input elements will be populated again.
Issue:
Every time I create new set of input elements, the time taken for creating increases linearly up to a point then decreases little and increases again
I use the below code to empty the div that accommodates the containers and create input elements
Emptying the overall div
node.innerHTML = ""
Creating a numeric control with label
function createNumber(display) {
let controlWrap = document.createElement("div");
let label = document.createElement("label")
let control = document.createElement("input")
control.type = "number";
label.append("Numeric Input");
label.append(control);
controlWrap.append(label);
controlWrap.style.display = display;
controlWrap.classList.add("ctrl");
return controlWrap;
}
Find the entire code below,
//Constands
const CTRL_DISPLAY_TYPE = "block"
//Selection
const numOfContainers = document.querySelector("#numOfContainers");
const numOfControls = document.querySelector("#numOfControls");
const createContainersBtn = document.querySelector("#create");
const containerWrapper = document.querySelector(".containerWrapper");
const controlHeading = document.querySelectorAll(".ctrlHeading");
//Event Listeners
createContainersBtn.addEventListener("click",createContainers);
controlHeading.forEach(element => element.addEventListener("click"),expandControl);
//Support-functions
function createControl(newControlContainer){
let newControlWrapper = document.createElement("div")
newControlWrapper.classList.add("ctrlWrapper");
let newControl = createNumber(CTRL_DISPLAY_TYPE);
newControlWrapper.appendChild(newControl);
newControlContainer.appendChild(newControlWrapper);
}
function createNumber(display){
let controlWrap = document.createElement("div");
let label = document.createElement("label")
let control = document.createElement("input")
control.type = "number";
label.append("Numeric Input");
label.append(control);
controlWrap.append(label);
controlWrap.style.display = display;
controlWrap.classList.add("ctrl");
return controlWrap;
}
function calculateControlPerContainer(numOfContainers,numOfControls,maxLimit){
let controlsPerContainer = []
let pendingControls = numOfControls%numOfContainers
let controlPerContainerNum = Math.floor(numOfControls/numOfContainers)
for (let i=0;i<numOfContainers;i++){
if (pendingControls>0){
newControlsPerContainer=controlPerContainerNum+1;
controlsPerContainer.push(newControlsPerContainer);
--pendingControls;
}
else{
controlsPerContainer.push(controlPerContainerNum);
}
}
return controlsPerContainer
}
function expandControl(event){
const control = event.currentTarget.nextElementSibling;
if (control.style.display === "none"){
control.style.display = "block";
}
else {
control.style.display = "none"
}
}
//utility-functions
function removeChild(node){
while(node.firstChild){
node.removeChild(node.firstChild);
}
}
function clearNodeData(node){
node.innerHTML = ""
}
//main-Functions
function createContainers(event){
console.time("Deleting controls");
const controlsPerContainer = calculateControlPerContainer(parseInt(numOfContainers.value),parseInt(numOfControls.value));
clearNodeData(containerWrapper);
//removeChild(containerWrapper);
console.timeEnd("Deleting controls");
console.time("populating controls");
controlsPerContainer.forEach(num=>{
let newControlContainer = document.createElement("div")
newControlContainer.classList.add("ctrlContainer");
for(let j=0;j<num;j++){
createControl(newControlContainer);
}
containerWrapper.appendChild(newControlContainer);
})
console.timeEnd("populating controls");
}
* {
box-sizing: border-box;
}
html, body {
margin: 0;
padding: 0;
border: 0;
height:100%
}
.containerWrapper{
display:flex;
flex-direction: row;
height: 90%;
}
.ctrlContainer{
/* flex-grow:1; */
flex-shrink: 0;
border-style: solid;
border-width: 0.5px;
margin:0 2px;
flex-basis: calc(25% - 4px);
align-items: stretch;
display:flex;
flex-direction: column;
overflow: auto;
}
.ctrlWrapper{
border-style: solid;
border-width: .5px;
margin:2px
}
.ctrlHeading{
display:block;
width: 100%;
text-align: left;
border: 0;
}
.ctrl{
display:none;
}
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="UTF-8">
<meta http-equiv="X-UA-Compatible" content="IE=edge">
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<title>Dynamic Controls</title>
<link rel="stylesheet" href="style/main.css">
</head>
<body>
<label for="numOfContainers">Number of Containers</label>
<input type="number" id="numOfContainers" name="numOfContainers" min="1" max="500" value="100">
<label for="numOfControls">Number of Controls</label>
<input type="number" id="numOfControls" name="numOfControls" min="1" max="1500" value="1500"><br>
<button id="create">Create</button>
<div class="containerWrapper">
<!-- <div class="ctrlContainer">
<div class="ctrlWrapper">
<button class="ctrlHeading">Checkbox</button>
<input class="ctrl" type="checkbox">
</div>
<div class="ctrlWrapper">
<button class="ctrlHeading">Checkbox</button>
<input class="ctrl" type="checkbox">
</div>
</div>
<div class="ctrlContainer">2</div>
<div class="ctrlContainer">3</div> -->
</div>
<script type="module" src="scripts/MainBackup.js"></script>
</body>
</html>
I tried analyzing using chrome developer tools and could see "append" function is taking more total time. Please let me know if I am doing something wrong in deleting or adding controls and how to avoid this time build up with every run.
More Information after some more exploration:
I am seeing this behavior only in chrome. In firefox and edge, there is no time buildup.
Firefox:
This occurs only in my system. Others are not able to replicate.
The time build-up occurs in portion of code in which I append inputs to the label to assign it to the input without using id. If I directly append the input to container, the time buildup doesn't happen
I have seen many similar problems but when I try them they end up failing. It has gotten to the point where my code is totally messed up and I need some help both cleaning it up and fixing my issue. (using chrome)
So far I have tried selecting the value of the form and putting that into a div,
I have tried to use the button as just a link to start the script so that the page doesn't reset and also many other answers found on-line, none of them are helping so I am asking for a personalised help.
function on_comment_add() {
var main = document.getElementById("div1");
var add_user_name = document.createElement("div");
var add_user_comment = document.createElement("div");
add_user_name.setAttribute("id", "add_user_name");
add_user_comment.setAttribute("id", "add_user_comment");
<!-- var node = document.createTextNode("This is new."); -->
var node_1 = document.getElementById("user_name").value;
var node_2 = document.getElementById("user_comment").value;
add_user_name.appendChild(node_1);
add_user_comment.appendChild(node_2);
var element = document.createElement("div");
element.setAttribute("id", "display_comment_div");
element.appendChild(add_user_name);
element.appendChild(add_user_comment);
main.appendChild(element);
main.innerHTML = element;
return false;
}
body {
background-color: lightGreen;
}
div.middle {
width: 80%;
margin-left: 10%;
background-color: #47e077;
height: 940px;
font-size: 10pt;
font-family: aubrey;
border: 3px solid gold;
}
.comments-form {
text-align: center;
}
#display_comment_div {
background: rgba(200, 54, 54, 0.1);
width: 80%;
margin-left: 9%;
border: 0.1px solid lightGreen;
border-radius: 25px;
}
#add_user_name {
width: 45%;
float: left;
}
#add_user_comment {
width: 45%;
display: inline-block;
float: right;
}
<div class="middle">
<div class="comments-form">
<form>
<label for="name" style="width:100px; display:inline-block;">Name</label>
<input id="user_name" type="text" placeholder="name goes here" style="width:300px; margin-left:5px;" />
<br><br>
<label for="comment" style="width:100px; display:inline-block;">Comment</label>
<textarea id="user_comment" placeholder="comment goes here" maxlength="150" style="width:300px;max-width:300px;"></textarea><br>
<button style="margin-left:310px;" onmousedown="return on_comment_add">Submit</button>
</form>
<div id="div1">
</div>
</div>
</div>
I guess what I am asking is if anyone can help me display the username and comment below the form but it seems tricky for me because I have gone through so many answers that don't work for me that I cannot think of any other ways to do it.
For clarification this code is not meant to keep the comments from the form nor is it meant to be a fully functioning site. I am just making slight modifications to some code so that I can hand it in as a college assignment.
Using onclick and pass the event inside:
<button style="margin-left:310px;" onclick="on_comment_add(event)">Submit</button>
And disable the default form submit action:
function on_comment_add(e) {
e.preventDefault()
var main = document.getElementById("div1");
var add_user_name = document.createElement("div");
var add_user_comment = document.createElement("div");
add_user_name.setAttribute("id", "add_user_name");
add_user_comment.setAttribute("id", "add_user_comment");
var node_1 = document.createElement("div");
node_1.innerHTML= document.getElementById("user_name").value;
var node_2 = document.createElement("div");
node_2.innerHTML = document.getElementById("user_comment").value;
add_user_name.appendChild(node_1);
add_user_comment.appendChild(node_2);
var element = document.createElement("div");
element.setAttribute("id", "display_comment_div");
element.appendChild(add_user_name);
element.appendChild(add_user_comment);
main.appendChild(element);
return false;
}
Workable example: https://jsfiddle.net/kingychiu/z6gnqswn/
Change type to "button" to prevent automatical form sending and add parentheses to onmousedown expression:
<button type="button" style="margin-left:310px;" onmousedown="return on_comment_add()">Submit</button>
Then change this
add_user_name.appendChild(node_1);
add_user_comment.appendChild(node_2);
to this (since node_1, node_2 are values, not elements):
add_user_name.innerHTML = node_1;
add_user_comment.innerHTML = node_2;
And remove that line
main.innerHTML = element;
above
return false;
That should work.
Searched, but wasn't able to find any similar problems or solutions.
I have some templated HTML which builds a form based on data from a spreadsheet, as I have a variable number of dropdowns and options in those dropdowns.
On click of submit I want to display a spinning gif to the user, so they know it is processing.
If the backend code in code.gs passes the input through all the tests I want to update a div with a success message, if any of the checks fail with an error message.
I've got this to work, before with the create .createHtmlOutputFromFile method, but now with .createTemplateFromFile it just wipes the whole page.
HTML template
<style type="text/css">
#import url(http://fonts.googleapis.com/css?family=Open+Sans:400,600,300);
#container{
padding-left:10px;
font-family: 'Open Sans', Arial, sans-serif;
}
#header{
width: 75%;
margin: 0 auto;
text-align: center;
margin-bottom:10px;
}
form{
text-align: center;
margin-top:10px;
}
#nameField{
width:400px;
margin-bottom:10px;
}
#reqIndic{
color:#FF0000;
}
select{
margin-top: 5px;
width:150px;
}
#submit{
margin-top:20px;
width:125px;
height:40px;
}
#confirmation{
width: 30%;
margin: 0 auto;
min-height:60px;
border-radius: 5px;
}
#padding{
width: 30%;
margin: 0 auto;
min-height:60px;
border-radius: 5px;
}
</style>
<div id="container">
<div id="header">
<h2>Cheltenham Classic</h2>
</div>
<br>
<form name="projectsForm">
<span id="reqIndic">*</span>
<span> Name</span>
<input id="nameField" type="text" name="name" required>
<br>
<? for (var race in races) { ?>
<span><?= race ?></span>
<select>
<? for (var i = 0; i < races[race].length; i++) { ?>
<option value="<?= races[race][i] ?>"><?= races[race][i] ?></option>
<? } ?>
</select>
<br>
<? } ?>
<br>
<input id="submit" type="submit" value="Submit Form" onclick="google.script.run
.withSuccessHandler(updateDiv)
.onEvent(this.parentNode);spinner()">
</form>
</div>
<div id="confirmation" style ="text-align:center"></div>
<div id="padding" style ="text-align:center"></div>
<script type="text/javascript">
function updateDiv(returnValue){
alert('debug');
var div = document.getElementById('confirmation');
if(returnValue == false){
var errStr = '<p>ERROR: Please check your rankings for blank fields or multiple entries of the same project and re-submit your rankings</p>';
div.innerHTML = errStr;
}
else{
div.innerHTML = '<p>Success! Your results were submitted successfully</p>';
}
}
function spinner(){
var div = document.getElementById('confirmation');
div.innerHTML = '<img src="http://loadinggif.com/images/image-selection/32.gif">'
}
</script>
Back end code
I've cut the onEvent function right down to just returning an object with a key value pair without making any checks.
The updateDiv function runs and the alert shows then the entire page is wiped.
function doGet(){
var raceForm = HtmlService.createTemplateFromFile('RaceForm');
raceForm.races = getRaces();
return raceForm.evaluate().setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function onEvent(e){
return {'valid': true};
}
function getRaces(){
var url = //spreadsheet url
var wb = SpreadsheetApp.openByUrl(url);
var ws = wb.getSheetByName('Races Log');
var racesObj = {};
var wsValues = ws.getDataRange().getValues();
for(var i = 0; i <wsValues.length;i++){
var race = wsValues[i][0];
racesObj[race] = [];
racesObj[race].push('0');
for(var j = 1; j<wsValues[i].length;j++){
racesObj[race].push(wsValues[i][j]);
}
}
return racesObj;
}
Any help much appreciated.
If I hard code the racesObj object:
var racesObj = {one:["one","two"], two:["one", "two"], "races":["belmont", "kentucky"]};
The page looks like this: (Using the template)
If I click the submit button, I get this: