"ImageID" doesn't work, I used php logging with this code

			foreach ($data as $v => $d){
				error_log($v.'  >>  '.$d, 0);
			}
			
			error_log('Image ID is '.$data['Image']->ID, 0);

and got this result where I don't see ImageID

[08-Jul-2010 12:55:16] Title  >>  New EventPage
[08-Jul-2010 12:55:16] MenuTitle  >>  New EventPage
[08-Jul-2010 12:55:16] Date  >>  2010-07-17
[08-Jul-2010 12:55:16] Time  >>  
[08-Jul-2010 12:55:16] Location  >>  
[08-Jul-2010 12:55:16] Image  >>  
[08-Jul-2010 12:55:16] Content  >>  
[08-Jul-2010 12:55:16] URLSegment  >>  new-eventpage-3
[08-Jul-2010 12:55:16] MetaTitle  >>  
[08-Jul-2010 12:55:16] MetaKeywords  >>  
[08-Jul-2010 12:55:16] MetaDescription  >>  
[08-Jul-2010 12:55:16] ExtraMeta  >>  
[08-Jul-2010 12:55:16] Priority  >>  0.9
[08-Jul-2010 12:55:16] Units  >>  Array
[08-Jul-2010 12:55:16] ClassName  >>  EventPage
[08-Jul-2010 12:55:16] ParentType  >>  subpage
[08-Jul-2010 12:55:16] ParentID  >>  24
[08-Jul-2010 12:55:16] ShowInMenus  >>  1
[08-Jul-2010 12:55:16] ShowInSearch  >>  1
[08-Jul-2010 12:55:16] ProvideComments  >>  0
[08-Jul-2010 12:55:16] HomepageForDomain  >>  
[08-Jul-2010 12:55:16] ToDo  >>  
[08-Jul-2010 12:55:16] CanViewType  >>  Inherit
[08-Jul-2010 12:55:16] ViewerGroups  >>  
[08-Jul-2010 12:55:16] CanEditType  >>  Inherit
[08-Jul-2010 12:55:16] EditorGroups  >>  
[08-Jul-2010 12:55:16] ID  >>  116
[08-Jul-2010 12:55:16] LiveURLSegment  >>  http://localhost:8888/events/new-eventpage-3/
[08-Jul-2010 12:55:16] StageURLSegment  >>  http://localhost:8888/events/new-eventpage-3/
[08-Jul-2010 12:55:16] Sort  >>  14
[08-Jul-2010 12:55:16] Image ID is 

How about sharing your code?

also, even if I add an image and save and then save again I still don't get my image id.

my code is as follows:

<?php
class MyValidator extends Validator{
	function javascript(){
		return false;
	}

	function php($data){
			foreach ($data as $v => $d){
				error_log($v.'  >>  '.$d, 0);
			}
			
			error_log('Image ID is '.$data['Image']->ID, 0);
			
		$bRet = true;

		//do some validation on the data
		/*
		if (!$data['Image']){
			$this->validationError(
				'Image',
				'We need an image',
				"required"
			);

			$bRet = false;
		}
*/
		return $bRet;
	}
}
?>

and

<?php
/**
 * Defines the EventPage page type
 */
class EventPage extends Page {
	static $db = array(
		'Date' => 'Date',
		'Time' => 'Text',
		'Location' => 'Text',
	);
	
	static $has_one = array(
		'Image' => 'Image',
	);

	static $many_many = array (
		'Units' => 'Unit',
	);

	function getCMSValidator(){
		return new MyValidator();
	}

	function getCMSFields() {
		$fields = parent::getCMSFields();

		$fields->addFieldToTab('Root.Content.Main', new DatePickerField('Date','Date'), 'Content');
		$fields->addFieldToTab('Root.Content.Main', new TextField('Time', 'Time'), 'Content');
		$fields->addFieldToTab('Root.Content.Main', new TextField('Location', 'Location'), 'Content');

		$fields->addFieldToTab('Root.Content.Main', new ImageField('Image', 'Image', '', '', '', $folderName = 'Events/'.substr($this->Date, 0, 7)), 'Content');

		$unitsMMCTF = new ManyManyComplexTableField(
			$this,
			'Units',
			'Unit',
			array('Name' => 'Unit Name')
		);

		// we don't want people adding new units!
		$unitsMMCTF->setPermissions(array());

		$fields->addFieldToTab('Root.Content.Units', $unitsMMCTF);
		
		return $fields;
	}

}
 
class EventPage_Controller extends Page_Controller {}
?>

My first observation is that

    $fields->addFieldToTab('Root.Content.Main', new ImageField('Image', 'Image', '', '', '', $folderName = 'Events/'.substr($this->Date, 0, 7)), 'Content');

I think should be...

blahblah   ImageField('ImageID',    blahblah

if you look at this in the DB that is how SS actually stores has one => 'Image'. You can clearly see your Image field in your debug results... dataobjects (and $data) can have anything in it but only those items that match the DB will be saved :)

That doesn't make a difference, it just says where to save the file under 'Assets' - if I get rid of it I still don't get anything from $data['Image']. In my DB the EventPage table does have ImageID - but I'm not seeing this under '$data'.

(thanks for your help and patience!)

did you change...

$fields->addFieldToTab('Root.Content.Main', new ImageField('Image', 'Image', '', '', '', $folderName = 'Events/'.substr($this->Date, 0, 7)), 'Content');

to

$fields->addFieldToTab('Root.Content.Main', new ImageField('ImageID', 'Image', '', '', '', $folderName = 'Events/'.substr($this->Date, 0, 7)), 'Content');

??

(Maybe I just should have pasted that, but I was trying to highlight the change...)

1)Take the line out and you will have it auto generate the field... then look at the data...
2)Understand that the first param to a FormField (like ImageField) is the name of the item in the DB

Well, the image is just named 'Image' so if I change that line to 'ImageID' I get

[08-Jul-2010 01:40:50] Error at sapphire/core/Object.php line 724: Uncaught Exception: Object->__call(): the method 'imageid' does not exist on 'EventPage' (http://localhost:8888/admin/EditForm/field/ImageID/iframe)

What does it do for (1) in my last post?