Ok, using the newest version of uploadify AND DataObjectManager.

I am uploading MP3s using S3Upload which it seems to upload just fine but when I hit continue to enter in the data on the file I just uploaded I get:

[Notice] Undefined offset: 0
POST /admin/EditForm/field/Sermons/UploadifyForm?SecurityID=02336c564f122add303e0731cc4d3a55244d788d&ctf[Sermons][start]=0&ctf[Sermons][per_page]=10&ctf[Sermons][showall]=0&ctf[Sermons][sort]=&ctf[Sermons][sort_dir]=&ctf[Sermons][search]=&ctf[Sermons][filter]=&ctf[Sermons][view]=

Line 530 in /home/..blah../public_html/dataobject_manager/code/FileDataObjectManager.php

Source

521 		$fields->removeByName($this->fileFieldName);
522 		$total = isset($_POST['totalsize']) ? $_POST['totalsize'] : sizeof($_POST['uploaded_files']);
523 		$index = isset($_POST['index']) ? $_POST['index'] + 1 : 1;
524 		$fields->push(new HiddenField('totalsize','',$total));
525 		$fields->push(new HiddenField('index','',$index));
526 		if(isset($_POST['uploaded_files']) && is_array($_POST['uploaded_files'])) {
527 			$remaining_files = $_POST['uploaded_files'];
528 			var_dump($_POST['uploaded_files']);
529 			//die;
530 			$current = $remaining_files[0];
531 			$dataObject = DataObject::get_by_id($this->sourceClass(), $current);
532 			$fileObject = $dataObject->obj($this->fileFieldName);
533 			$fields->push(new HiddenField('current','',$current));
534 			unset($remaining_files[0]);
535 			if(!$fields->loaded) {
536 				foreach($remaining_files as $id)
Trace

FileDataObjectManager->EditUploadedForm() 
Line 462 of FileDataObjectManager.php
FileDataObjectManager->saveUploadifyForm(Array,FileDataObjectManager_Popup,SS_HTTPRequest) 
Line 329 of Form.php
Form->httpSubmission(SS_HTTPRequest) 
Line 143 of RequestHandler.php
RequestHandler->handleRequest(SS_HTTPRequest) 
Line 161 of RequestHandler.php
RequestHandler->handleRequest(SS_HTTPRequest) 
Line 161 of RequestHandler.php
RequestHandler->handleRequest(SS_HTTPRequest) 
Line 161 of RequestHandler.php
RequestHandler->handleRequest(SS_HTTPRequest) 
Line 147 of Controller.php
Controller->handleRequest(SS_HTTPRequest) 
Line 282 of Director.php
Director::handleRequest(SS_HTTPRequest,Session) 
Line 125 of Director.php
Director::direct(/admin/EditForm/field/Sermons/UploadifyForm) 
Line 127 of main.php

public function getCMSFields()
	{
		$f = parent::getCMSFields();
		
		$manager = new FileDataObjectManager(
			$this, // Controller
			'Sermons',
			'SermonCastSermon', // Source class
			'Attachment', // File name on DataObject
			array(
				 'SermonDate'=>'Date',
				 'Title' => 'Title',
				 'Speaker' => 'Speaker'
			), // Headings 
			'getCMSFields_forPopup' // Detail fields (function name or FieldSet object)
			// Filter clause
			// Sort clause
			// Join clause
		);
		$manager->setDefaultView("list");
		//$manager->setUploadFolder('/Sermons/');
		$manager->uploadifyField = "S3MultipleUploadField";
		
		$f->fieldByName('Root.Content')->insertBefore(new Tab('Sermons'), 'Main');
		$f->fieldByName('Root.Content')->insertBefore(new Tab('SermonCastDetails'), 'Main');
		
		$f->addFieldToTab("Root.Content.SermonCastDetails", new LiteralField('Explaination','<h2>Podcast Details</h2><p>These details are used in the RSS feed for the podcast - the RSS feed is compatible with iTunes.</p>'));
		$f->addFieldToTab("Root.Content.SermonCastDetails", new TextField('SermonTitle','Sermon Title'));
		$f->addFieldToTab("Root.Content.SermonCastDetails", new TextField('Author','Sermon Author'));
		$f->addFieldToTab("Root.Content.SermonCastDetails", new TextField('OwnerEmail','Sermon Owner Contact Email'));
		$f->addFieldToTab("Root.Content.SermonCastDetails", new TextAreaField('Summary','Sermon Summary'));
		$f->addFieldToTab("Root.Content.SermonCastDetails", new S3UploadField('Image', 'Sermon Image'));
		
		$f->addFieldToTab("Root.Content.Sermons", $manager);
//		if(!Permission::check('ADMIN')) $f->removeFieldFromTab("Root.Content", "Main");

		
		return $f;
			
	}

This started happening right when we were going to launch the site!
Please help!

ignore
528 var_dump($_POST['uploaded_files']);

I was trying to debug.

I don't know if this is relevent, but Uploadify returns an input field called "UploadedFiles[]" with a number value attached to it. I wonder if that field is the same as "uploaded_files"?