How should I use canCreate()? Where should I put the function? I don't want ANYBODY to be able to add items.

<?php

class SliderItem extends DataObject
{
	static $db = array (
		'Link' => 'Varchar',
	);

	static $has_one = array(
		'Page'=>'Page'
	);
 

	static $defaults = array( 
		"LinkText" => 'View Details', 
	);

	public function getCMSFields_forPopup()
	{
		return new FieldSet(
			new TextField('Link'),
		);
	}

	public function canCreate() {
		return false;
	} 

}

?>

That is the correct place for the function and the correct format. Is it still allowing you to add objects?

Yes, it is still allowing the administrator to add objects (SliderItem) using the DataObjectManager module.

$yourDom->removePermission('add');

Hi guys,

I need help on removing add and delete buttons from DataObjectManager. But I want to do this in a decorator class.

So in the owner class this is the code:
>>>
public function getCMSFields() {

$fields = parent::getCMSFields();

$dataObjectManager = new DataObjectManager(
$this,
'HostingToplistItems',
'HostingToplistItem',
array(
'getSortOrder' => 'Rank',
'getProviderName' => 'Provider',
'getPlanName' => 'Plan',
'getEnabled' => 'Enabled'
)
);

}

>>

Of course I can remove add and delete buttons by just putting the line $dataObjectManager->setPermissions(array(''));

But as ive mentioned I want to do this in the decorator class like
>>
public function updateCMSFields( FieldSet &$fields ) {
$this->owner->dataObjectManager->setPermissions(array(''))

>>
I have declared $dataObjectManager in the owner class as public. The decorator class doesn't recognize $dataObjectManager.

Any ideas how do this?

Thanks in advance!

Did you try:

public function updateCMSFields( FieldSet &$fields ) {
$fields->fieldByName('HostingToplistItems')->setPermissions(array());
}

Yes, I did try that. I encountered this error
>>
Fatal error: Call to a member function setPermissions() on a non-object ..

Weird. Well, then just loop through the fields until you find the DOM and set the permissions on it.