How to pass form data with Fine Uploader?

StackOverflow https://stackoverflow.com/questions/23550922

  •  18-07-2023
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Question

I can easily upload images with Fine Uploader but I can't figure out how I can pass other form data to the endpoint at the same time and how to handle the data.

I'd like to make a form that redirects the user to other location after submitting the form. So far I'm playing with the Fine uploader documentation examples - but can't make them work either.

If I try to write to disk $_POST contents in the endpoint.php, it makes image uploading crash. If I upload images and submit form, I get error messages from endpoint.php.

You can run it here: http://www.digioppikirja.fi/v3/fineuploader.html

Here's HTML:

<html>
<head>
    <script src="http://code.jquery.com/jquery-latest.js"></script>
    <script type="text/javascript" src="http://www.digioppikirja.fi/v3/custom.fineuploader-4.4.0/custom.fineuploader-4.4.0.min.js"></script>
    <script type="text/template" id="qq-template">
        <div class="qq-uploader-selector qq-uploader">
            <div class="qq-upload-drop-area-selector qq-upload-drop-area" qq-hide-dropzone>
                <span>Drop files here to upload</span>
            </div>
            <div class="qq-upload-button-selector qq-upload-button">
                <div>Select Files</div>
            </div>
            <span class="qq-drop-processing-selector qq-drop-processing">
                <span>Processing dropped files...</span>
                <span class="qq-drop-processing-spinner-selector qq-drop-processing-spinner"></span>
            </span>
            <ul class="qq-upload-list-selector qq-upload-list">
                <li>
                    <div class="qq-progress-bar-container-selector">
                        <div class="qq-progress-bar-selector qq-progress-bar"></div>
                    </div>
                    <span class="qq-upload-spinner-selector qq-upload-spinner"></span>
                    <span class="qq-upload-file-selector qq-upload-file"></span>
                    <span class="qq-upload-size-selector qq-upload-size"></span>
                    <a class="qq-upload-cancel-selector qq-upload-cancel" href="#">Cancel</a>
                    <span class="qq-upload-status-text-selector qq-upload-status-text"></span>
                </li>
            </ul>
        </div>
    </script>
<head>

<body>
    <form action="endpoint.php" method="post" enctype="multipart/form-data" id="qq-form">
        <label>Enter your name</label>
        <input type="text" name="user_name" required>
        <label>Enter your email</label>
        <input type="email" name="user_email" required>
        <input type="submit" value="Done">
    </form>

    <div id="my-uploader"></div>

    <script>
        $("#my-uploader").fineUploader({

            form: {
                        interceptSubmit: false,
                        autoUpload: true,
                    },


            });
    </script>
</body>

Here's PHP:

 <?php

/**
 * PHP Server-Side Example for Fine Uploader (traditional endpoint handler).
 * Maintained by Widen Enterprises.
 *
 * This example:
 *  - handles chunked and non-chunked requests
 *  - assumes all upload requests are multipart encoded
 *
 *
 * Follow these steps to get up and running with Fine Uploader in a PHP environment:
 *
 * 1. Setup your client-side code, as documented on http://docs.fineuploader.com.
 *
 * 2. Copy this file and handler.php to your server.
 *
 * 3. Ensure your php.ini file contains appropriate values for
 *    max_input_time, upload_max_filesize and post_max_size.
 *
 * 4. Ensure your "chunks" and "files" folders exist and are writable.
 *    "chunks" is only needed if you have enabled the chunking feature client-side.
 */

// Include the upload handler class
require_once "handler.php";
require_once "../cfg/digikirjat.cfg.php";

$uploader = new UploadHandler();

// Specify the list of valid extensions, ex. array("jpeg", "xml", "bmp")
$uploader->allowedExtensions = array(); // all files types allowed by default

// Specify max file size in bytes.
$uploader->sizeLimit = 10 * 1024 * 1024; // default is 10 MiB

// Specify the input name set in the javascript.
$uploader->inputName = "qqfile"; // matches Fine Uploader's default inputName value by default

// If you want to use the chunking/resume feature, specify the folder to temporarily save parts.
$uploader->chunksFolder = "chunks";

$method = $_SERVER["REQUEST_METHOD"];
if ($method == "POST") {
    header("Content-Type: text/plain");

    // Call handleUpload() with the name of the folder, relative to PHP's getcwd()
    $result = $uploader->handleUpload($_dirs['temp'].'/upload/');

    // To return a name used for uploaded file you can use the following line.
    $result["uploadName"] = $uploader->getUploadName();


    echo json_encode($result);

    // THIS MAKES UPLOADS CRASH:
    $a = print_($_POST, true);
    file_put_contents($_dirs['temp'].'/upload/post.txt', $a);

}
else {
    header("HTTP/1.0 405 Method Not Allowed");
}



?>
Was it helpful?

Solution 2

I found the answer myself. To make Fine Uploader work with PHP forms, do following:

  • Set form: { interceptSubmit: true, autoUpload: false,}, Now the user can complete text fields. When the user pushes submit button, Fine Uploader begins the file upload.

  • Set callbacks: { onComplete: function(id, name, response) { if (response.success) { location.href = 'YOUR_URL_HERE'; } } } This is how you can reload the page or do something similar that normally happens when you submit a form. Of course you can reload the content with Javascript too.

  • Endpoint.php: The content of the form is found most easily from $_REQUEST.

  • Any bug at any part of endpoint.php will probably cause an error message when uploading the file even if the upload would be succesfull. This is what I learned.

OTHER TIPS

All of the data in your form is being passed to your handler without issue. Your server is not responding with a valid JSON string though. It looks like you haven't read the comments at the top of the PHP file you included. You are missing a handler.php file, for starters.

If you want to do something like redirect the user to a new page after the upload has successfully completed, return a property in your server response that includes the URL, and redirect the user in your onComplete callback handler.

For example:

callbacks: {
    onComplete: function(id, name, response) {
        if (response.success) {
            location.href = response.newUrl;
        }
    }
}
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