I'm trying to display function fields in a sort of listview (not editable). Something like Customer Invoices in Accounting.

Here is my current code. (py) I use a function field with a range, etc just to do a test.

def _get_partners(self, cr, uid, ids, name, arg, context):
res = {}
partners_obj = self.pool.get('res.partner')
listIds = range(1, 10000)
partners_list = partners_obj.search(cr, uid, [('id', 'in', listIds)])
for element in partners_list:
    partner = partners_obj.browse(cr,uid, element)
    partner_name = partner.name
    res[partner.id] = partner_name
print(res)
return res

_name = 'aged.partner.balance'   
_description = 'Aged Partner Balance'
_columns = {
    'partner_id': fields.function(_get_partners, type='char', store=False, method=True,)

aged_partner_balance()

<record id="aged_partner_tree" model="ir.ui.view"> <field name="name">aged.partner.balance.tree</field> <field name="model">aged.partner.balance</field> <field name="arch" type="xml"> <tree string="Aged Partner Balance" >="" <field="" name="partner_id" string="Name"/> </tree>
</field> </record>