related field on odoo?

Question

how to add a field related on odoo
I would like to add a text field on stock.move related to stock.picking origin field
I tried this :

_columns={         


        

Answer 1

I used the old api it work fine now :

_columns={
'sourcebon': fields.related('picking_id', 'origin', string="Origin", type="char",store=True, readonly=True),
}