You added a $has_many inside the DataObjectManager class? It's a form field, not a model.

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hmm... I added only a model in my class, then I do not understand what and where to add more.

I have a class BookPage extends Page and Book extends DataObject

In class Book I added:
static $has_many = array (
'LinkComment' => 'DataObjectComment'
)

in class BookPage_Controller added function:
function DataObjectComment () (
$Obj = DataObject::get_one ("Book", 'ID ='. Convert::raw2sql ((int) $this->urlParams['ID']));
return new DataObjectCommentInterface ($obj, 'DataObjectComments', $obj-> data ());
)

in Template i use $DataObjectComment and see Comments and form post, but he not work

I really do not know how to get to work. Maybe someone can give me an example for the study?

no anyone easy example?

Hi freenet,

have you solved your issue? If yes, can you help me with the same problem?

my issue is explained here..

http://www.silverstripe.org/dataobjectmanager-module-forum/show/19101

thanks