Hi everybody.

I need to display values from one2many field in tree view, so I decided to create functional field and declared it on my xml tree view:

    def get_product_brands(self, cr, uid, ids, fields, arg, context):

        res={}

        for record in self.browse(cr, uid, ids, context=None).application_data_product_template_ids:

            brands = record.brand.name or ''

        print brands

        res[record.id] = brands

        return res

and my field declaration:

'brands' : fields.function(get_product_brands, method=True, string="Product brands", type='char', store=True)

xml sample code:

<record model="ir.ui.view" id="product_tree_inherit">

     <field name="name">product.tree.inherit</field>

     <field name="model">product.template</field>

     <field name="inherit_id" ref="product.product_template_tree_view"/>

     <field name="arch" type="xml">

     <xpath expr="//field[@name='categ_id']" position="after"> 

         <field name="brands"/>

     </xpath>

   </field>

</record>

In my console, I can see correct records printed but I does not display anything in my tree view.

Can anyone help me?