Customer invoice. Get value from another object.

Question

I have Odoo v8
In the list view i want a value(vat) from the partner that is selected in the invoice.
I have tried   <field name=" partner_id.vat"/> but that doesn't work.
partner_id is a many to one field.  Vat is a char field.
How can i do that?

Sudhir Arya (ERP Harbor Consulting Services) · Accepted Answer

You can create a related (v7) [1] / related (v8) [2] field for that.
Ex:
# For older version style
_columns = {
'partner_vat': fields.related('partner_id.vat', type='char', string='Vat')
}
# For API version style
partner_vat = fields.Char(related='partner_id.vat', string='Vat')
Add this field in tree view.
Sudhir Arya
*ERP Harbor Consulting Services*
skype:
sudhir@erpharbor.com [3]    website:  http://www.erpharbor.com [4]
None [5]  None [6]  None [7]  None [8]  None [9]

[1] https://doc.odoo.c

Pascal Westerdijk · Answer

Sorry i am new to this.
Where can i make a  related field?

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