Problem with inheritance by prototyping

munissor · **Joined:** Tue Jan 19, 2010 12:33 pm **Posts:** 2

Hi everyone,

I'm quite new to openerp, and I have a small problem with object inheritance.

According to the documentation athttp://doc.openerp.com/developer/2_5_Objects_Fields_Methods/object_inherit.html to create a new object with fields of an existing object we can use _inherit = "existing.object" with _name != _inherit.

I'm trying to create a template of a product, that should have all the columns of a product and a few additional columns.

Here is my model:

Code:

class product_template(osv.osv):
    _name = 'variations.product_template'
    _inherit = 'product.product'
    _description = 'Template'
    _columns = {
         'name' : fields.char('Name', size=32, required=True),
         }
product_template()

and the view

Code:

<tree>
<record>
    <field>variations.template.tree</field>
    <field>variations.product_template</field>
    <field>tree</field>
    <field>
       <tree>
           <field>
        </tree>
    </field>
</record>
</tree>

As you can see product_template inherits by product.product. The view references my own model, not product.

The problem is that if I open the template tree, it displays a list of products, not the templates. I checked the DB and seems fine, there is a table (empty) for product_template. I can't figure out what is going wrong.

Thanks in advance

Riccardo