Dropzone image upload options not working :(

Question

Im trying to build a drag and drop image upload but dropzone options dont work and I dont know if im doing it the right way.

I would love to set up the following options:

Upload only one file (multiupload parameter)
Possibility to remove that file (addremovelink?)
Max file size of 2mb (maxfilesize)

Can you help me please?

here is the code:

    <html>
<head>
    <title></title>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    <script src="dropzone.js" type="text/javascript"></script>
    <link href="css/basic.css" rel="stylesheet" type="text/css" />
    <link href="css/dropzone.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <script type="text/javascript">
        $(document).ready(function(){
            $("#uploadme").dropzone({
                paramName: 'photos',
                url: 'upload.php',
                dictDefaultMessage: "Drag your images",
                clickable: true,
                enqueueForUpload: true,
                maxFilesize: 1,
                uploadMultiple: false,
                addRemoveLinks: true
            });

        });
    </script>
    <form action="upload.php" class="dropzone">
        <div id="uploadme" class="fallback">
            <input name="file" type="file" multiple />
        </div>
    </form>
</body>
</html>

Thank you guys, you rock! :)

Hi. What is the problem you are having? – enyo Aug 20 '13 at 14:14 — enyo, Aug 20 '13 at 14:14

score 15 · Accepted Answer · edited Oct 12 '14 at 04:50

Just add before Jquery call

Dropzone.autoDiscover = false;

and remove the action from the <form>. That will disable the auto discover function so you can specify all the options for your form.

This is what your code should look like:

<html>
<head>
    <title></title>
    <script src="//ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
    <script src="dropzone.js" type="text/javascript"></script>
    <link href="css/basic.css" rel="stylesheet" type="text/css" />
    <link href="css/dropzone.css" rel="stylesheet" type="text/css" />
</head>
<body>
    <script type="text/javascript">
        $(document).ready(function(){
            Dropzone.autoDiscover = false;
            $("#uploadme").dropzone({
                paramName: 'photos',
                url: 'upload.php',
                dictDefaultMessage: "Drag your images",
                clickable: true,
                enqueueForUpload: true,
                maxFilesize: 1,
                uploadMultiple: false,
                addRemoveLinks: true
            });

        });
    </script>
    <form action="" class="dropzone">
        <div id="uploadme" class="fallback">
            <input name="file" type="file" multiple />
        </div>
    </form>
</body>
</html>

The autoDiscover statement ought to be outside of the DOM ready event. Other than that, this code does not make drag & drop work for me. The dropzone also refuses to generate any thumbnails. — Jay, Sep 25 '19 at 15:45
Same here. The options have no effect, and there's a button for adding file instead of drag'n drop. — CodeOrElse, Apr 28 '21 at 18:42

score 6 · Answer 2 · answered Dec 11 '16 at 04:52

In my situation I had to use the vanilla JS Dropzone Class instantiation and put the Dropzone.autoDiscover = false; outside of the $(document).ready function.

html:

<form id="image-upload" action="/upload" class="dropzone" method="post" name="file"></form>

javascript:

<script>
Dropzone.autoDiscover = false;
$(document).ready(function() {
    var myDropzone = new Dropzone('form#image-upload',{
        maxFiles:12,
        acceptedFiles: 'image/*',
        dictInvalidFileType: 'This form only accepts images.'
    });
});

score 0 · Answer 3 · answered Jan 23 '14 at 00:01

maxFilesize: 2,
uploadMultiple: false,
addRemoveLinks: true,
maxFiles: 1,
autoProcessQueue: false

You will need to add in a button or event handler to allow for processing of the previewed file, if you let it autoProcessQueue you don't have time to decide if you want the file or not unless you add an event handler at the "process" event.

$("#uploadme").dropzone.processQueue()

Dropzone image upload options not working :(

3 Answers3

Linked