I have two different JS functions to handle image uploads. One to read the file and to (globally) create the FormData object and the other to send it to a PHP file via AJAX.
Even though the file is valid I can't append it to the FormData. And strings neither. And as it turns out I'm only sending empty XHRequests via Ajax, because I don't get any other content from PHP then empty arrays.
Since the first JS function initializes the formData variable globally the second function should have no problems using it, am I right?
My Javascript looks like this (I commented out some unnecessary lines:
$(document).ready(function(){
var formUplImg = $('.form-upl-img');
var fileInput = $('.file-input');
// Analyse files from input immediately
fileInput.on('change', function(){
readFile($(this).attr('id'));
})
// Upload images on submit
formUplImg.on('submit', function(event) {
uploadImg($(this), event);
});
function readFile(id){
// Grab file that's supposed to be uploaded
var fileInput = document.getElementById(id);
var fileCount = fileInput.files.length;
formData = new FormData();
// If there is no file
if( fileCount!= 1 ){
// goodImg = false;
// Error message
// showMsgBar(iClose, 'Da ist nichts.', 'Bitte wähle zuerst eine Datei aus.', red);
// If there is a file
} else {
// Save file attributes
var file = fileInput.files[0];
var fileName = fileInput.files[0].name;
var fileSize = fileInput.files[0].size;
var fileType = fileInput.files[0].type;
// If file is not an image
if( !fileType.match(/image.*/) ) {
// goodImg = false;
// Error message
// showMsgBar(iClose, 'Ungültiger Dateityp.', 'Das Bild muss ein JPG, PNG, GIF oder SVG sein.', red);
// If file is an image
} else {
// If file size exceeds 3MB
if( fileSize > 3145728 ) {
// goodImg = false;
// Error message
// showMsgBar(iClose, 'Das Bild ist zu groß.', 'Die Dateigröße darf max. 3MB betragen.', red);
// If image file size is ok
} else {
// goodImg = true;
// Distinguish img use cases
if( fileInput.id.indexOf('icon') > -1 ) {
var imgUsage = 'icon'; // round user icon (for usage in header)
} else if ( fileInput.id.indexOf('logo') > -1 ) {
var imgUsage = 'logo'; // horizontal logo (contributors/admin or corporation logo)
} else if ( fileInput.id.indexOf('photo') > -1 ) {
var imgUsage = 'photo'; // photo for posts
} // img use cases
console.log(file, imgUsage); // => the file with all attributes + 'icon'
formData.append(imgUsage+'_upload_input', file);
formData.append('img-usage', imgUsage);
console.log(file, imgUsage); // => the file with all attributes + 'icon'
} // /file size is ok
} // /file is an image
} // /file is not empty
} // /readFile()
function uploadImg($this, event){
var serialForm = $this.serialize();
console.log(serialForm.toString()); // => 'user_id=36'
$.ajax({
url : "test-upload.php",
type : "POST",
data : formData+serialForm,
async : true,
cache : false,
processData: false,
contentType: false,
success : function(callback){
console.log(callback);
formdata = new FormData();
}
});
event.preventDefault();
} // /uploadImg
}); // /jQuery
HTML
<!DOCTYPE html>
<html lang="de">
<head>
<meta charset="utf-8" />
<title>Test</title>
<script src="js/jquery-2.1.3.min.js" type="text/javascript"></script>
<script type="text/javascript">
</head>
<body>
<h1>Test</h1>
<form action="" method="post" name="form_profile_icon_upload" class="form form-profile form-upl-img form-profile-side-right" id="form-profile-icon-upload" enctype="multipart/form-data">
<fieldset class="fieldset icon-upload-fieldset" id="profile-icon-upload-fieldset">
<legend class="legend">Icon ändern <span class="label-span">(siehe oben)</span></legend>
<input type="file" name="icon_upload_input" class="file-input icon-upload-input" id="profile-icon-upload-input" />
<p class="form-txt"><strong>Hinweis:</strong><br />
Die Dateigröße darf <strong>3 MB</strong> nicht überschreiten. Quadratische Icons eignen sich optimal, sind aber kein Muss.</p>
<input type="hidden" name="user_id" value="36" />
<button type="submit" name="profile_icon_upl_btn" class="button button-green form-sbmt-btn" id="profile-icon-upl-btn" value="Hochladen">Hochladen</button>
<p class="img-del-txt">
</p>
</fieldset>
</form><!-- Icon upload form -->
</body>
</html>
The PHP file looks like this (for test purposes):
<?php
if( isset($_POST) && isset($_FILES) ){
print_r($_POST);
echo ($_POST['icon_upload_input']);
print_r($_FILES);
die();
}
I'm using latest Firefox 35.0 and jQuery 2.1.3. Can anyone help me out?
Your problem is here data: formData+serialForm,.
FormData must be passed alone, if you want to add data to it use the constructor or append.
function uploadImg($this, event){
var formData = new FormData($this[0]); //construct the form data with the form
...
formData.append(imgUsage+'_upload_input', file);
formData.append('img-usage', imgUsage);
...
data: formData, //just pass the formdata object
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