bobatapioca bobatapioca - 20 days ago 7
Javascript Question

Uploading Multiple Files to Google Drive with Google App Script

I'm trying to upload multiple files at once with my app. It recognizes when there are 2 or more files being selected. However, it will only upload the 1st file that is selected to my drive. Also (although quite minor), I was wondering how I can change my textarea font to be Times New Roman to stay consistent with the rest of the font.

Code.gs

function doGet() {
return HtmlService.createHtmlOutputFromFile('form')
.setSandboxMode(HtmlService.SandboxMode.IFRAME);
}

function uploadFiles(form) {

try {
var foldertitle = form.zone + ' | Building: ' + form.building + ' | ' + form.propertyAddress + ' | ' + form.attachType;
var folder, folders = DriveApp.getFolderById("0B7UEz7SKB72HfmNmNnlSM2NDTVVUSlloa1hZeVI0VEJuZUhSTmc4UXYwZjV1eWM5YXJPaGs");
var createfolder = folders.createFolder(foldertitle);
folder = createfolder;
var blob = form.filename;
var file = folder.createFile(blob);
file.setDescription(" " + form.fileText);

return "File(s) uploaded successfully! Here is the link to your file(s): " + folder.getUrl();

} catch (error) {
Logger.log('err: ' + error.toString());
return error.toString();
}

}

function uploadArquivoParaDrive(base64Data, nomeArq, idPasta) {
try{
var splitBase = base64Data.split(','),
type = splitBase[0].split(';')[0].replace('data:','');

var byteCharacters = Utilities.base64Decode(splitBase[1]);
var ss = Utilities.newBlob(byteCharacters, type);
ss.setName(nomeArq);

var file = DriveApp.getFolderById("0B7UEz7SKB72HfmNmNnlSM2NDTVVUSlloa1hZeVI0VEJuZUhSTmc4UXYwZjV1eWM5YXJPaGs").createFile(ss);

return file.getName();
}catch(e){
return 'Erro: ' + e.toString();
}
}


form.html

<body>
<div id="formcontainer">

<label for="myForm">Facilities Project Database Attachment Uploader:</label>

<br><br>


<form id="myForm">
<label for="myForm">Project Details:</label>
<div>
<input type="text" name="zone" placeholder="Zone:">
</div>
<div>
<input type="text" name="building" placeholder="Building(s):">
</div>
<div>
<input type="text" name="propertyAddress" placeholder="Property Address:">
</div>
<div>

<label for="fileText">Project Description:</label>

<TEXTAREA name="projectDescription"
placeholder="Describe your attachment(s) here:"
style ="width:400px; height:200px;"
></TEXTAREA>


</div>
<br>


<label for="attachType">Choose Attachment Type:</label>
<br>
<select name="attachType">
<option value="Pictures Only">Picture(s)</option>
<option value="Proposals Only">Proposal(s)</option>
<option value="Pictures & Proposals">All</option>
</select>
<br>

<label for="myFile">Upload Attachment(s):</label>
<br>


<input type="file" name="filename" id="myFile" multiple>

<input type="submit" value="Submit" onclick="iteratorFileUpload()">


</form>
</div>

<div id="output"></div>

<script>
function iteratorFileUpload() {
var allFiles = document.getElementById('myFile').files;

if (allFiles.length == 0) {
alert('No file selected!');
} else {

// Send each file one at a time
var i=0;
for (i=0; i < allFiles.total; i+=1) {
console.log('This iteration: ' + i);
sendFileToDrive(allFiles[i]);
};
};
};

function sendFileToDrive(file) {
var reader = new FileReader();
reader.onload = function (e) {
var content = reader.result;
console.log('Sending ' + file.name);

google.script.run
.withSuccessHandler(fileUploaded)
.uploadArquivoParaDrive(content, file.name, currFolder);
}

reader.readAsDataURL(file);
};
</script>

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>

<script>
// Upload de arquivo dentro das pastas Arquivos Auxiliares
function iterarArquivosUpload() {
var arquivos = document.getElementById('inputUpload').files;

if (arquivos.length == 0) {
alert('No file selected!');
} else {
//Show Progress Bar
numUploads.total = arquivos.length;
$('.progressUpload').progressbar({
value : false
});
$('.labelProgressUpload').html('Preparando arquivos para upload');

// Send each file at a time
for (var arqs = 0; arqs < numUploads.total; arqs++) {
console.log(arqs);
enviarArquivoParaDrive(arquivos[arqs]);
}
}
}

function enviarArquivoParaDrive(arquivo) {
var reader = new FileReader();
reader.onload = function (e) {
var content = reader.result;
console.log('Sending ' + arquivo.name);
google.script.run.withSuccessHandler(updateProgressbar).uploadArquivoParaDrive(content, arquivo.name, currFolder);
}
reader.readAsDataURL(arquivo);
}

function updateProgressbar( idUpdate ){
console.log('Received: ' + idUpdate);
numUploads.done++;
var porc = Math.ceil((numUploads.done / numUploads.total)*100);
$('.progressUpload').progressbar({value: porc });
$('.labelProgressUpload').html(numUploads.done +'/'+ numUploads.total);
if( numUploads.done == numUploads.total ){
uploadsFinished();
numUploads.done = 0;
};
}
</script>

<script>
function fileUploaded(status) {
document.getElementById('myForm').style.display = 'none';
document.getElementById('output').innerHTML = status;
}

</script>

<style>
body {
max-width: 400px;
padding: 20px;
margin: auto;
}
input {
display: inline-block;
width: 100%;
padding: 5px 0px 5px 5px;
margin-bottom: 10px;
-webkit-box-sizing: border-box;
‌​ -moz-box-sizing: border-box;
box-sizing: border-box;
}
select {
margin: 5px 0px 15px 0px;
}
input[type="submit"] {
width: auto !important;
display: block !important;
}
input[type="file"] {
padding: 5px 0px 15px 0px !important;
}
</style>
</body>

Answer

I know this question is old, but after finding it and related ones, I was never able to get the multiple file upload working. So after a lot of banging my head against walls, I wanted to post a full example (.html and .gs) in case anyone in the future is looking for one to get started. This is working when I deploy it right now and will hopefully work for other people out there. Note that I just hardcoded the folder in the drive to use in the code.gs file, but that can be easily changed.

form.html:

<body>
  <div id="formcontainer">

    <label for="myForm">Facilities Project Database Attachment Uploader:</label>

    <br><br>


    <form id="myForm"> 
      <label for="myForm">Project Details:</label>
      <div>
        <input type="text" name="zone" placeholder="Zone:">
      </div>
      <div>
        <input type="text" name="building" placeholder="Building(s):">
      </div>
      <div>
        <input type="text" name="propertyAddress" placeholder="Property Address:">
      </div>
      <div>

      <label for="fileText">Project Description:</label>

          <TEXTAREA name="projectDescription" 
          placeholder="Describe your attachment(s) here:"
          style ="width:400px; height:200px;"
          ></TEXTAREA>


      </div> 
      <br>


      <label for="attachType">Choose Attachment Type:</label>
      <br>
      <select name="attachType">
        <option value="Pictures Only">Picture(s)</option>
        <option value="Proposals Only">Proposal(s)</option>
        <option value="Pictures & Proposals">All</option>
      </select>
      <br>

      <label for="myFile">Upload Attachment(s):</label>
      <br>


      <input type="file" name="filename" id="myFile" multiple>

      <input type="button" value="Submit" onclick="iteratorFileUpload()">


    </form>
  </div>

  <div id="output"></div>
<div id="progressbar">
    <div class="progress-label"></div>
</div>

<script src="//ajax.googleapis.com/ajax/libs/jquery/1.11.2/jquery.min.js"></script>
<link rel="stylesheet" href="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/themes/smoothness/jquery-ui.css">
<script src="https://ajax.googleapis.com/ajax/libs/jqueryui/1.11.4/jquery-ui.min.js"></script>

<script>

var numUploads = {};
numUploads.done = 0;
numUploads.total = 0;

// Upload the files into a folder in drive
// This is set to send them all to one folder (specificed in the .gs file)
function iteratorFileUpload() {
    var allFiles = document.getElementById('myFile').files;

    if (allFiles.length == 0) {
        alert('No file selected!');
    } else {
        //Show Progress Bar

        numUploads.total = allFiles.length;
        $('#progressbar').progressbar({
        value : false
        });//.append("<div class='caption'>37%</div>");
        $(".progress-label").html('Preparing files for upload');
        // Send each file at a time
        for (var i = 0; i < allFiles.length; i++) {
            console.log(i);
            sendFileToDrive(allFiles[i]);
        }
    }
}

function sendFileToDrive(file) {
    var reader = new FileReader();
    reader.onload = function (e) {
        var content = reader.result;
        console.log('Sending ' + file.name);
        var currFolder = 'Something';
        google.script.run.withSuccessHandler(updateProgressbar).uploadFileToDrive(content, file.name, currFolder);
    }
    reader.readAsDataURL(file);
}

function updateProgressbar( idUpdate ){
   console.log('Received: ' + idUpdate);
   numUploads.done++;
   var porc = Math.ceil((numUploads.done / numUploads.total)*100);
   $("#progressbar").progressbar({value: porc });
   $(".progress-label").text(numUploads.done +'/'+ numUploads.total);
   if( numUploads.done == numUploads.total ){
      //uploadsFinished();
      numUploads.done = 0;
   };
}
</script>

  <script>
    function fileUploaded(status) {
      document.getElementById('myForm').style.display = 'none';
      document.getElementById('output').innerHTML = status;
    }

  </script>

  <style>
    body {
      max-width: 400px;
      padding: 20px;
      margin: auto;
    }
    input {
      display: inline-block;
      width: 100%;
      padding: 5px 0px 5px 5px;
      margin-bottom: 10px;
      -webkit-box-sizing: border-box;
      ‌​ -moz-box-sizing: border-box;
      box-sizing: border-box;
    }
    select {
      margin: 5px 0px 15px 0px;
    }
    input[type="submit"] {
      width: auto !important;
      display: block !important;
    }
    input[type="file"] {
      padding: 5px 0px 15px 0px !important;
    }
#progressbar{
    width: 100%;
    text-align: center;
    overflow: hidden;
    position: relative;
    vertical-align: middle;

}
.progress-label {
      float: left;
margin-top: 5px;
      font-weight: bold;
      text-shadow: 1px 1px 0 #fff;
          width: 100%;
    height: 100%;
    position: absolute;
    vertical-align: middle;
    }
  </style>
</body>

code.gs:

function doGet() {
  return HtmlService.createHtmlOutputFromFile('form')
    .setSandboxMode(HtmlService.SandboxMode.IFRAME);
}

function uploadFileToDrive(base64Data, fileName) {
  try{
    var splitBase = base64Data.split(','),
        type = splitBase[0].split(';')[0].replace('data:','');

    var byteCharacters = Utilities.base64Decode(splitBase[1]);
    var ss = Utilities.newBlob(byteCharacters, type);
    ss.setName(fileName);

    var dropbox = "Something"; // Folder Name
    var folder, folders = DriveApp.getFoldersByName(dropbox);

    if (folders.hasNext()) {
      folder = folders.next();
    } else {
      folder = DriveApp.createFolder(dropbox);
    }
    var file = folder.createFile(ss);

    return file.getName();
  }catch(e){
    return 'Error: ' + e.toString();
  }
}
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