Uploading file using Google Apps Script using HtmlService - forms

How can I upload files to google drive?
I want to create a web app using google app script - htmlservice.
I don't know how to point form in html to existing google app script.
I am having hard time to find a right example in google documentation.
I found hundreds of examples using UI but according to https://developers.google.com/apps-script/sunset it will be deprecated soon.
Thank you in advance!
Janusz
<html>
<body>
<form>
<input type="file"/>
<input type="button">
</form>
</body>
</html>
Script
function doGet() {
return HtmlService.createHtmlOutputFromFile('myPage');
}
function fileUploadTest()
{
var fileBlob = e.parameter.upload;
var adoc = DocsList.createFile(fileBlob);
return adoc.getUrl();
}

Have the button run the server side function using google.script.run, passing in the entire form as the only parameter. (Inside the button's onClick, 'this' is the button, so 'this.parentNode' is the form.) Make sure to give the file input a name.
<html>
<body>
<form>
<input type="file" name="theFile">
<input type="hidden" name="anExample">
<input type="button" onclick="google.script.run.serverFunc(this.parentNode)">
</form>
</body>
</html>
On the server, have your form handling function take one parameter - the form itself. The HTML form from the client code will be transformed into an equivalent JavaScript object where all named fields are string properties, except for files which will be blobs.
function doGet() {
return HtmlService.createHtmlOutputFromFile('myPage');
}
function serverFunc(theForm) {
var anExampleText = theForm.anExample; // This is a string
var fileBlob = theForm.theFile; // This is a Blob.
var adoc = DocsList.createFile(fileBlob);
return adoc.getUrl();
}
If you actually want to use that URL you are generating and returning, be sure to add a success handler to the google.script call. You can modify it like this:
// Defined somewhere before the form
function handler(url) {
// Do something with the url.
}
<input type="button" onclick=
"google.script.run.withSuccessHandler(handler).serverFunc(this.parentNode)">

try: return HtmlService.createTemplateFromFile('myPage').evaluate();
More: html service reference

I found an answer for my question.
Submit a Form using Google App Script's HtmlService
The code in the Google App Script link below is:
function doGet(e) {
var template = HtmlService.createTemplateFromFile('Form.html');
template.action = ScriptApp.getService().getUrl();
return template.evaluate();
}
function doPost(e) {
var template = HtmlService.createTemplateFromFile('Thanks.html');
template.name = e.parameter.name;
template.comment = e.parameter.comment;
template.screenshot = e.parameter.screenshot;
return template.evaluate();
}
https://script.google.com/d/1i65oG_ymE1lreHtB6WBGaPHi3oLD_-wPd5Ter1nsN7maFAWgUA9DbE4C/edit
Thanks!

Related

Powershell webinvoke with Google Script webapp

Is there a way to web invoke from PowerShell connection to web app created in google app script ?
When im running the request on normal sites I will receive back information containing Forms[], Images[], InputFields[] etc. However when I'm trying to run the same request on a https://script.google.com/a/macros/ web app all those fields are blank and i can only see a variable called el linking to field called sandboxFrame.
The app is a simple upload site to one of my google folders, everything is working when I'm in browser. I'm trying to automate the process through PowerShell script
HTML file
<!DOCTYPE html>
<html>
<body>
<input name="file" id="files" type="file" multiple>
<input type='button' value='Upload' onclick='getFiles()'>
</body>
<script>
function getFiles() {
const f = document.getElementById('files');
[...f.files].forEach((file, i) => {
const fr = new FileReader();
fr.onload = (e) => {
const data = e.target.result.split(",");
const obj = {fileName: f.files[i].name, mimeType: data[0].match(/:(\w.+);/)[1], data: data[1]};
google.script.run.withSuccessHandler((id) => {
console.log(id);
}).saveFile(obj);
}
fr.readAsDataURL(file);
});
}
</script>
</html>
GS script
function saveFile(obj) {
var folder = DriveApp.getFolderById('1w586veZcOZN_NnB90jaTZ12DF-jP005u');
var blob = Utilities.newBlob(Utilities.base64Decode(obj.data), obj.mimeType, obj.fileName);
return folder.createFile(blob).getId();
}
You would need to take advantage of the doPost function.
I assume you already know about the doGet function, but there is another function that you can use as part of a web app called doPost. This allows you to post data using something like the following from powershell:
Invoke-WebRequest https://script.google.com/a/macros/[SCRIPTID]?[QUERYSTRING] -Method POST
Where the [QUERYSTRING] is something like:
name=bartosz&stack=BartoszWolas&reputation=1000
Then within the doPost on the web app side you would write a function like this:
function doPost(e) {
const name = e.parameter.name; // bartosz
const stackAlias = e.parameter.stack; // BartoszWolas
const reputation = e.parameter.reputation; // 1000
}
Reference
web app

Google Apps Script HTMLService display confirmation page after form submit

I created a web app form using Google Apps Script and the HTMLService.
It is a one-page form with a submit button at the bottom.
When submitted, the form validates whether the data input into the form is valid, and if valid, it logs the form data to a spreadsheet.
That all works so far.
I now need the user to be sent to a confirmation page, and the confirmation page needs to be able to have parameters passed to it (to display certain information on the confirmation page).
main.gs:
function doGet(e) {
var template = HtmlService.createTemplateFromFile('form');
return template.evaluate().setSandboxMode(HtmlService.SandboxMode.IFRAME);
}
function processFormSubmission(formData) {
Logger.log('starting processPoRequest');
Logger.log('po: ' + JSON.stringify(formData, null, 2));
// code for appending data to sheet here
}
form.html:
<!DOCTYPE html>
<form id="form1" name="form1">
<label for="info" id="info_label">Info</label>
<input id="info" name="info" type="text">
<input class="btn" id="button" onclick="onClickFunctions(document.getElementById('form1'))" type="submit" value="Submit">
</form>
<script>
function onClickFunctions(formData) {
console.log('starting onClickFunctions');
var allDataValid = validateForm(formData);
if (allDataValid === true) {
google.script.run.withSuccessHandler().processFormSubmission(formData);
}
}
function validateForm(form) {
console.log('starting validateForm');
var errors = 0;
var element = document.getElementById('info');
if (!form.info) { element.classList.add("validation_error"); errors++; if (errors === 1) element.focus(); }
else element.classList.remove("validation_error");
if (errors > 0) return false;
else return true;
}
</script>
confirmation.html:
<!DOCTYPE html>
<?!= confirmationMessage ?>
I don't know what to put in .withSuccessHandler() to make it so that the user is brought to the confirmation page.
I've Googled this extensively and found these results on Stack Overflow, and each one suggests a different solution, but none of them actually include complete working code for a solution:
Possible solutions using doPost:
Send form by email and track responses in spreadsheet
HtmlService doPost With Google Docs Form
HtmlService doPost
I messed around with doPost but I couldn't figure out how to get it to be invoked, and I couldn't find any official documentation in the HTMLService docs.
Possible solution using the link to the web app in an a href:
href in HtmlService
If my button was a link that looked like a button, I'm not sure how I would execute the form validation function when the link is clicked.
I have done this two different ways.
had a hidden statement that gets shown, and the form gets hidden.
or
use .withSuccessHandler(google.script.host.close()), but have the processFormSubmission function open a new dialogue.

Google Script Form with uploads, how to connect to spreadsheet

Hi the below script has allowed me to upload files to Google drive however I can not seem to get the data entered in 'Name' and 'Date" to enter in to a spreadsheet.
Can anyone help me create or link a spreadsheet for the data to populate into.
Thanks
code.gs
function doGet(e) {
return HtmlService.createHtmlOutputFromFile('form.html');
}
function uploadFiles(form) {
try {
var dropbox = "Operation Overview";
var folder, folders = DriveApp.getFoldersByName(dropbox);
if (folders.hasNext()) {
folder = folder.next();
} else {
folder = DriveApp.createFolder(dropbox);
}
var blob = form.myFile;
var file = folders.createFile(blob);
file.setDescription("Uploaded by "+ form.myName);
return "File uploaded successfully ";
} catch (error) {
return error.toString();
}
}
form.html
<form id="myForm">
<input type="text" name="myName" placeholder="Your name.">
<input type="text" name="myDate" placeholder="Date.">
<input type="file" name="myFile">
<input type="submit" value="Upload File"
onclick="this.value='Uploading..';
google.script.run.withSuccessHandler(fileUploaded)
.uploadFiles(this.parentNode);
return false;">
</form>
<div id="output"></div>
<script>
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}
</script>
<style>
input { display:block; margin: 20px; }
</style>
You need to use the Spreadsheet Service:
Google Documentation - Apps Script Spreadsheet Service
You can use Append Rows:
Append Rows
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sheet = ss.getSheets()[0];
// Appends a new row with 2 columns to the bottom of the
// spreadsheet containing the values in the array
sheet.appendRow(["Jackson Jones", "jJones#email.com"]);
The above example uses the getActiveSpreadsheet() method. You won't be using that. You need a reference to the file.
You can open a spreadsheet file by id, or url.
Google Documentation - Open a Spreadsheet by ID
// The code below opens a spreadsheet using its ID and logs the name for it.
// Note that the spreadsheet is NOT physically opened on the client side.
// It is opened on the server only (for modification by the script).
var ss = SpreadsheetApp.openById("abc1234567");
Logger.log(ss.getName());
Notice the Logger.log() statement. To view the log, use the View menu in the Apps Script code editor.
It's critical to understand, that SpreadsheetApp.openById() returns a CLASS. It returns the SPREADSHEET CLASS
Google Documentation - Spreadsheet Class
Once you get the Spreadsheet Class, then you can take the next step and use methods available to the Spreadsheet Class.
var ss = SpreadsheetApp.openById("abc1234567");
Logger.log(ss.getName());
ss.appendRow(["Jackson Jones", "jJones#email.com"]);
In the above example, the data is hard coded, but you need variables instead of the constant values in double quotes.
So you need to get the data out of the form object, and into variables or a direct reference.
ss.appendRow([form.myName, "jJones#email.com"]);
I did check your code, and form.myName did return the name I entered into the name field.

fine-uploader resubmit parameters but not file

I'm using fine-uploader to take multiple (large) files and pass the filename along with an additional user-input parameter. I do that by creating a text input box (called 'allele_freq') next to each file and I pass the filename and the allele_freq parameter to my cgi script.
What happens next (or what will happen next) is that I analyse the data in the file, using the allele_freq parameter and then some images are returned to the page for the user to look at.
If the user wants to re-analyse the data with a new allele_freq, all I want to do is to pass the filename along with the new allele_freq, i.e. I don't want to have to upload the file again.
I've pasted my working code below (it uploads multiple files along with user input for each file) and then the code that I can't get to work (it produces a 'resubmit' button, but doesn't appear to do anything), along with some comments/musings within the code.
Any information on how I would do this will be gratefully received. I'm very new to both fine-uploader and Javascript (as you can probably tell), so please feel free to criticise (constructively of course!) any of my code.
Many thanks,
Graham
<link href="fineuploader/fineuploader-3.6.4.css" rel="stylesheet">
<script src="fineuploader/jquery-2.0.1.js"></script>
<script src="fineuploader/jquery.fineuploader-3.6.4.js"></script>
<div id="multiFineUploader"></div>
<div id="triggeredUpload" class="btn btn-primary" style="margin-top: 10px;">
<i class="icon-upload icon-white"></i> Upload now
</div>
<script>
$('#multiFineUploader').fineUploader({
request: {
endpoint: 'src/lib/upload.cgi'
},
autoUpload: false,
text: {
uploadButton: '<i class="icon-plus icon-white"></i> Select Files'
}
})
.on('submitted', function(event, id, name) {
var fileItemContainer = $(this).fineUploader('getItemByFileId', id);
$(fileItemContainer)
.append('<input type="text" name="allele_freq">');
})
.on('upload', function(event, id, name) {
var fileItemContainer = $(this).fineUploader('getItemByFileId', id),
enteredAlleleFreq = $(fileItemContainer).find('INPUT[name="allele_freq"]').val();
$(this).fineUploader('setParams', {allele_freq: enteredAlleleFreq}, id);
});
$('#triggeredUpload').click(function() {
$('#multiFineUploader').fineUploader('uploadStoredFiles');
});
</script>
above code works fine
code below doesn't
<div id="resubmitFreqs"></div>
<div id="retry" class="btn btn-success" style="margin-top: 10px;">
<i class="icon-upload icon-white"></i> Resubmit
</div>
<script>
$('#resubmitFreqs').fineUploader({
request: {
//use a different script as shouldn't need to handle all the upload stuff
endpoint: 'src/lib/resubmit.cgi'
}
)}
//get the information from the allele_freq box. Should it still be in scope?? If not, how do I get at it?
.on('upload', function(event, id, name) {
var fileItemContainer = $(this).fineUploader('getItemByFileId', id),
enteredAlleleFreq = $(fileItemContainer).find('INPUT[name="allele_freq"]').val();
$(this).fineUploader('setParams', {allele_freq: enteredAlleleFreq}, id);
});
$('#retry').click(function() {
//I presumably don't want to use 'uploadStoredFiles', but I'm not sure how to post my new parameters into the resubmit.cgi server-side script
$('#resubmitFreqs').fineUploader('uploadStoredFiles');
});
</script>
It seems like you are trying to bend Fine Uploader into something that it is not. Fine Uploader should probably not be involved with this step of your process, as its job is to upload files to your server. It is not meant to be an all-in-one web application. If you want to send additional data to your server at some point in time after the file has been sent, simply send a POST request with that data via XHR.

jquery / ajax form not passing button data

I thought the HTML spec stated that buttons click in a form pass their value, and button "not clicked" did not get passed. Like check boxes... I always check for the button value and sometimes I'll do different processing depending on which button was used to submit..
I have started using AJAX (specifically jquery) to submit my form data - but the button data is NEVER passed - is there something I'm missing? is there soemthing I can do to pass that data?
simple code might look like this
<form id="frmPost" method="post" action="page.php" class="bbForm" >
<input type="text" name="heading" id="heading" />
<input type="submit" name="btnA" value="Process It!" />
<input type="submit" name="btnB" value="Re-rout it somewhere Else!" />
</form>
<script>
$( function() { //once the doc has loaded
//handle the forms
$( '.bbForm' ).live( 'submit', function() { // catch the form's submit event
$.ajax({ // create an AJAX call...
data: $( this ).serialize(), // get the form data
type: $( this ).attr( 'method' ), // GET or POST
url: $( this ).attr( 'action' ), // the file to call
success: function( response ) { // on success..
$('#ui-tabs-1').html( response );
}
});
return false; // cancel original event to prevent form submitting
});
});
</script>
On the processing page - ONLY the "heading" field appears, neither the btnA or btnB regardless of whichever is clicked...
if it can't be 'fixed' can someone explain why the Ajax call doesn't follow "standard" form behavior?
thx
I found this to be an interesting issue so I figured I would do a bit of digging into the jquery source code and api documentation.
My findings:
Your issue has nothing to do with an ajax call and everything to do with the $.serialize() function. It simply is not coded to return <input type="submit"> or even <button type="submit"> I tried both. There is a regex expression that is run against the set of elements in the form to be serialized and it arbitrarily excludes the submit button unfortunately.
jQuery source code (I modified for debugging purposes but everything is still semantically intact):
serialize: function() {
var data = jQuery.param( this.serializeArray() );
return data;
},
serializeArray: function() {
var elementMap = this.map(function(){
return this.elements ? jQuery.makeArray( this.elements ) : this;
});
var filtered = elementMap.filter(function(){
var regexTest1= rselectTextarea.test( this.nodeName );
var regexTest2 = rinput.test( this.type ); //input submit will fail here thus never serialized as part of the form
var output = this.name && !this.disabled &&
( this.checked || regexTest2|| regexTest2);
return output;
});
var output = filtered.map(function( i, elem ){
var val = jQuery( this ).val();
return val == null ?
null :
jQuery.isArray( val ) ?
jQuery.map( val, function( val, i ){
return { name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}) :
{ name: elem.name, value: val.replace( rCRLF, "\r\n" ) };
}).get();
return output;
}
Now examining the jQuery documentation, you meet all the requirements for it to behave as expected (http://api.jquery.com/serialize/):
Note: Only "successful controls" are serialized to the string. No submit button value is serialized since the form was not submitted using a button. For a form element's value to be included in the serialized string, the element must have a name attribute. Values from checkboxes and radio buttons (inputs of type "radio" or "checkbox") are included only if they are checked. Data from file select elements is not serialized.
the "successful controls link branches out to the W3 spec and you definitely nailed the expected behavior on the spec.
Short lame answer: I think it is teh broken! Report for bug fix!!!
I've run into a rather unusual issue with this. I'm working on a project and have two separate php pages where one has html on the page separate from the php code and one is echoing html from inside php code. When I use the .serialize on the one that has the separate html code it works correctly. It sends my submit button value in its ajax call to another php page. But in the one with the html echoed from the php script I try to do the same thing and get completely different results. It will send all of the other info in the form but not the value of the submit button. All I need it to do is send whether or not I pushed "Delete" or "Update". I'm not asking for help (violating the rules of asking for help on another persons post) but I thought this info might be helpful in figuring out where the break down is occurring. I'll be looking for a solution and will post back here if I figure anything out.