Manufacturer name in product.tpl on v.1.4.x

[B3aT]

I couldn't find anywhere how to make this adjustment in v.1.4 so here it is :

In product.tpl add

 {$product->manufacturer_name}

In classes / product.php add the followings :

around line 206

   protected $fieldsValidate = array(
       'id_tax_rules_group' => 'isUnsignedId',
       'id_manufacturer' => 'isUnsignedId',

add

'manufacturer_name' => 'isString',

around line 302 :

parent::validateFields();
       if (isset($this->id))
           $fields['id_product'] = (int)($this->id);
       $fields['id_tax_rules_group'] = (int)($this->id_tax_rules_group);
       $fields['id_manufacturer'] = (int)($this->id_manufacturer);

add

$fields['manufacturer_name'] = ($this->manufacturer_name);

================ later edit

This modifiction it seems creates an error in BO when updating a product

an error occurred while updating object product (Unknown column 'manufacturer_name' in 'field list')