Hi,

have you tried with a related field??

it should work, some like

_name='mymodel.model'

x_name_field = fields.Char(related="write_id")

Hello medmars,

You can create compute method.

le_reste = fields.Float(compute='compute_le_reste', store=True)

@api.multi
@api.depends('montant_octroy', 'montant_vignatte')
def compute_le_reste(self):
    for rec in self:
        rec.le_reste = rec.montant_octroy + rec.montant_vignatte

Thanks