Default sort by reference

[mati06]

Hello,

I want to set default sort by reference, in back office wasn't that option

In AdminPPreferences.php i added

array(
				array('id' => '0', 'name' => $this->l('Product name')),
				array('id' => '1', 'name' => $this->l('Product price')),
				array('id' => '2', 'name' => $this->l('Product added date')),
				array('id' => '4', 'name' => $this->l('Position inside category')),
				array('id' => '5', 'name' => $this->l('Manufacturer')),
				array('id' => '6', 'name' => $this->l('quantity')),
				array('id' => '7', 'name' => $this->l('reference')),
				array('id' => '3', 'name' => $this->l('Product modified date'))
			), 'identifier' => 'id'),

 

In Tools.php i was addes

$list = array(0 => 'name', 1 => 'price', 2 => 'date_add', 3 => 'date_upd', 4 => 'position', 5 => 'manufacturer_name', 6 => 'quantity', 7 => 'reference');

 

but still products are not default sorted by reference

any advice would be greatly appreciated!