Relation Callback

Hi , i need to relation callback i found this topic http://www.grocerycr...urned/#entry982 but cant get it work.

So my tables are like this ;



CREATE TABLE IF NOT EXISTS `item_category` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`category_name` varchar(256) NOT NULL,

`category_seo` varchar(256) NOT NULL,

`category_alt` int(11) NOT NULL DEFAULT '0',

PRIMARY KEY (`id`),

KEY `id` (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=19 ;





CREATE TABLE IF NOT EXISTS `item` (

`id` int(11) NOT NULL AUTO_INCREMENT,

`item_name` varchar(256) NOT NULL,

`item_desc` text NOT NULL,

`item_image` varchar(256) NOT NULL,

`item_category` int(5) NOT NULL,

`item_seo` varchar(256) NOT NULL,

PRIMARY KEY (`id`),

KEY `id` (`id`)

) ENGINE=InnoDB DEFAULT CHARSET=utf8 AUTO_INCREMENT=4 ;

category_alt is parent category id.

My product list function is ;



public function product_list()

{

$crud = new grocery_CRUD();

	 $crud->set_table('item');

	 $crud->columns('item_name','item_image','item_category','item_seo','item_desc');

	 $crud->display_as('item_name','ÃœrÃ¼n AdÄ±');

	 $crud->display_as('item_image','ÃœrÃ¼n Resmi');

	 $crud->display_as('item_category','ÃœrÃ¼n Kategorisi');

	 $crud->display_as('item_seo','DÃ¼zenli URL');

	 $crud->display_as('item_desc','ÃœrÃ¼n AÃ§Ä±klama');

	 $crud->fields('item_name','item_image','item_category','item_seo','item_desc');

	 $crud->set_relation('item_category','item_category','{category_name}-');

	 $crud->add_fields('item_name','item_image','item_category','item_seo','item_desc');

	 $crud->change_field_type('item_seo', 'invisible');

	 $crud->change_field_type('item_image', 'invisible');

	 $crud->callback_before_insert(array($this,'seo_urun'));

	 $crud->callback_before_update(array($this,'seo_urun'));

	 $crud->add_action('Resim DÃ¼zenle', base_url().'assets/grocery_crud/themes/flexigrid/css/images/add.png', '','ui-icon-image',array($this,'resim_link'));

	 $output = $crud->render();

	 $data['css']=str_replace(base_url()."assets/","", $output->css_files);

array_push($data['css'],'admin.css');

$data['js']=str_replace(base_url()."assets/","", $output->js_files);

$data['output']=$output->output;

$data['icerik']="theme/admin/urun_ekle";

$this->load->view('theme/index', $data);

}

i need to show parent category name in below code because i have similar category names

$crud->set_relation('item_category','item_category','{category_name}-');

like this,

$crud->set_relation('item_category','item_category','{category_name}- CALLBACKFORPARENTCATEGORYNAME(category_alt)');

I hope i can explain my problem.

Thank you.

silverspring