Form handling and validation in Google spreadsheet sidebar - javascript

I have a sidebar in a Google spreadsheet with a HTML form in it.
Now, how do I handle the values submitted?
In index.html:
<form id="configs" action="#">
<fieldset>
////input fields here
<input type="submit" id="enviar" value="Send" onclick="google.script.run.validarForm()" />
</fieldset>
</form>
In code.gs the functin validarForm() is called but how do I pass the submitted values to it so I can validate it first and store them in variables?
Thanks in advance for your help!

You can pass parameters using google.script.run. I'd do something like this:
<form id="configs" action="#">
<fieldset>
<input type="text" id="exampleField1" />
<input type="text" id="exampleField2" />
<input type="submit" id="enviar" value="Send" onclick="enviarForm()" />
</fieldset>
</form>
<script>
function enviarForm(){
var exampleField1Value = document.getElementById("exampleField1").value;
var exampleField2Value = document.getElementById("exampleField2").value;
google.script.run.validarForm(exampleField1Value, exampleField2Value);
}
</script>
Of course, this can be done with event handlers instead of "onclick=", and jQuery too.

Related

Form Id can't recognise addEventListener

How do I solve the error cannot read property of 'addEventListener' of null ? when I add this code,document.getElementById("myForm").addEventListener("submit", SaveBookmark) in my JS file
<form id="myForm">
<input type="text" id="siteName" size="75%" placeholder="Twitter"><tr>
<input type="text" placeholder="Website URL" size="75%" id="siteName"><br>
<button type="button" id="submitBtn">Submit</button>
</form>
First please notice that you're calling DOM is loaded or duplicated formID.
This code is working fine. please change <button type="button"> to be <button type="submit" .../>
<form id="myForm">
<input type="text" id="siteName" size="75%" placeholder="Twitter"><tr>
<input type="text" placeholder="Website URL" size="75%" id="siteName"><br>
<button type="submit" id="submitBtn">Submit</button>
</form>
<script>
document.getElementById("myForm").addEventListener("submit", SaveBookmark);
function SaveBookmark() {
alert('success');
}
</script>
I'm by no means an expert but to avoid that error your JS should look like this
const myForm = document.getElementById("myForm");
if (myForm) {
myForm.addEventListener("submit", SaveBookmark)
}
This ensures that your form element exists before you add the event listener
Should work easily:
document.getElementById('myForm').addEventListener('submit', function() {
alert("yes!")
})
<form id="myForm">
<input type="text" id="siteName" size="75%" placeholder="Twitter"><tr>
<input type="text" placeholder="Website URL" size="75%" id="siteName"><br>
<button type="submit" id="submitBtn">Submit</button>
</form>
It does not work because you have a
<button type="button" id="submitBtn">Submit</button>
instead of:
<button type="submit" id="submitBtn">Submit</button>
and you're trying to reach submit event.
Anyway, i recommend you not to add event listeners due to resource wasting. Use it when it's the only option.
I let you another way to reach the same with default click eventlistener:
<form id="myForm">
<input type="text" id="siteName" size="75%" placeholder="Twitter"><tr>
<input type="text" placeholder="Website URL" size="75%" id="siteName"><br>
<button type="submit" id="submitBtn" onclick="saveBookmark()">Submit</button>
</form>
<script type="text/javascript">
function saveBookmark(){
alert ("Bookmark saved");
}
</script>
You'll click on submit button anyway so, use onclick event instead of creating an eventlistener. It works simplest and waste much less resources...
And remember to add action attribute to the form, trying to re-program defined behaviour will only make your software heavy and heavy on codelines and timeloads. Thats why know the language its important.
Hope it help!

HTML form action search, one text box, 2 buttons, 2 possible results

I am trying these days to do a search form that sends to two different pages with two different buttons with a single text box. So far I am doing this:
<form action="http://www.youtube.com/results" method="get">
<input name="search_query" type="text" maxlength="128" />
<input type="submit" value="YouTube" />
</form>
<form action="https://torrentz.eu/search" method="get">
<input name="q" type="text" maxlength="128" />
<input type="submit" value="TorrentZ" />
</form>
of course the result is this:
I can work with that, but I want to make it "cuter" like this:
So far I have tried using a script but I did not get it so I scraped it, then I tried making an if/elseif but yet again, I was not sure what I was doing, I am not a good planner for what I see, a toggle button or a dropbox is not as fast, as I just need to press tab once or twice and enter to just search where I want.
As an extra note, I am just making my personal "new tab" for chrome, as the basic and the ones I find in extensions are pretty heavy for my mini laptop.
In HTML5 you can use formaction attribute.
<!DOCTYPE html>
<html>
<body>
<form>
<input name="search_query" type="text" maxlength="128" />
<input type="submit" formaction="http://www.youtube.com/results" value="YouTube" />
<input type="submit" formaction="https://torrentz.eu/search" value="TorrentZ" />
</form>
</body>
</html>
Since you tried and failed a script, let's look at ways we can achieve this.
Using form
Be extremely wary of what you do here. It is easy to send a get request using form but it always "flushes" out the query strings already present in the action URL, and submits the request by adding name-value pairs in its child nodes. Make sure to create your query as a child node.
<input type="text" id="box" name="searchbox" maxlength="128" placeholder="Type text to be searched here" autofocus />
<input type="button" value="Youtube" onclick="search_youtube()"/>
<input type="button" value="Torrentz" onclick="search_torrentz()"/>
<script>
function search_youtube(){
var add="https://www.youtube.com/results";
var box = document.getElementById("box");
box.name="search_query"
if(box.value)
{
var form = open().document.createElement("form");
form.action=add;
form.appendChild(box.cloneNode(false))
form.submit();
}
}
function search_torrentz(){
var add="https://www.torrentz.com/search";
var box = document.getElementById("box");
box.name="q"
if(box.value)
{
var form = open().document.createElement("form");
form.action=add;
form.appendChild(box.cloneNode(false))
form.submit();
}
}
</script>
Using HTML5 formaction attribute
<form action="https://www.youtube.com/results" method="GET">
<input type="text" id="box" name="search_query" maxlength="128" placeholder="Type text to be searched here" autofocus />
<input type="submit" value="Torrentz" formaction="https://www.torrentz.com/search" onclick="document.getElementById('box').name='q'" />
<input type="submit" name="submit" value="Youtube" />
</form>

How to get a specific form elements using jQuery

I have a multiple forms in a page and i would like to get the elements of a specific form. For example:
<form class="form" id="1">
<input type="text" name="message" value="message">
<button type="submit" value="submit">Submit</button>
</form>
<form class="form" id="2">
<input type="text" name="message" value="message">
<button type="submit" value="submit">Submit</button>
</form>
How to get the value of message of form id=2...... Thanks in advance
Just use attribute selectors
$('form[id=2]') // get the form with id = 2
.find('input[name=message]') // locate the input element with attribute name = message
.attr("value"); // get the attribute = value
You really shouldn't use raw numbers for ids, let's rename those to form_1 and form_2, then your jquery selector would be:
$("#form_2 [name='message']").val();
Simply query the input from the id of the form you'd like
console.log($('#2 input').val());
//more specific
console.log($('#2 input[name="message"]').val());
<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<form class="form" id="1">
<input type="text" name="message" value="message">
<button type="submit" value="submit">Submit</button>
</form>
<form class="form" id="2">
<input type="text" name="message" value="message">
<button type="submit" value="submit">Submit</button>
</form>
You can use jQuery, or you can use basic JavaScript to return the message value. With basic JS, you would have to give your form a name, but then could return the message value.
Code:
function getValue() {
var message = document.forms["form_name"]["message"].value;
}
You would then have to return the function when the form is submitted
<form class="form" name="form_name" onsubmit="return getValue()">

javascript function call for single form

I have multiple forms in my php file for different buttons. So, if I click on Back button, ramesh.php script should be called and so on. This is the code.
<form action="ramesh.php">
<input type="submit" value="Back" />
</form>
<form action="process.php" method="post">
<input name="rep_skyline" type="text" />
<input type="submit" />
</form>
<form action="update.php" method="post" >
<button type="submit">Update</button>
</form>
However, I need to pass some data to server from my client side on form submit just for the update button. I have a javascript function to send the data to server side as below.
<script type="text/javascript">
$(document).ready(function() {
$('form').submit(function(e) {
var mydata = 3;
if ($(this).is(':not([data-submit="true"])'))
{
$('form').append('<input type="hidden" name="foo" value="'+mydata+'">');
$('form').data('submit', 'true').submit();
e.preventDefault();
return false;
}
})
})
</script>
If I click on the update button, the javascript function is working fine. However, if I click on Back or Submit button, I should not be calling the javascript function. Is there someway to do this?
Give your form an id:
<form action="update.php" method="post" id="update-form">
Then use a more specific selector:
$("#update-form").submit(function() {
// Code
});
I'm not quite sure why you need JavaScript to dynamically add data to your form, however. You should just use an <input type="hidden" /> directly.
type=submit will always load the form's action. Try to specify wich form to submit.
<form name="backForm" id="backForm" action="ramesh.php">
<input type="submit" value="Back" />
</form>
<form name="form2" id="form2" action="process.php" method="post">
<input name="rep_skyline" type="text" />
<input type="submit" />
</form>
Now you can access the form via document.backForm or document.getElementById("backForm") and than use submit(); like document.getElementById("backForm").submit();

javascript, homework, form validation, acknowledgement

I need to verify my form information and send an acknowledgement page.
This is what I've tried but it isn't working. Is there a way to incorporate both?
This verifies that all fields are filled out:
<input type=button value="Verify Information" onclick="verify();">
<input type=reset value="Clear Form"><br>
This directs to acknowledgement page:
</form>
<form action="acknowledgement.html" method="get">
<input type="submit" name="submit"
VALUE="Submit">
</form>
<form action="acknowledgement.html" method="get" onsubmit="verify();">
<input type="submit" name="submit"
VALUE="Submit">
</form>
<script language="javascript">
function verify(){
var isOK = true;
//check all the inputs.
//if one of them incorrect
isOk = false;
return isOk;
}
</script>
Use onSubmit
<form action="acknowledgement.html" method="get" onSubmit="verify()">
<input type="submit" name="submit" value="Submit">
</form>
All of your form elements need to be between the start and end <form> tags. But you knew that already :)

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