python - 如何在odoo中使用onchange存储值？

Question

如果我将 amount_total 值更改保存到之前的位置，因为它是只读的。我希望该字段是只读的。

discount = fields.Selection([('fixed', 'fixed Price'), ('percentage', 'Percentage')], string="Discount")
amount = fields.Float("Amount")
total = fields.Float("Discounted Amount", store=True, compute='discount_amount')
amount_total = fields.Monetary(string='Total', store=True,readonly=True, compute='_amount_all')




    @api.onchange('total')
def totalamount(self):
    if self.total:
        self.amount_total -= self.total

如何处理这个问题

Answer 1

您可以执行以下操作，而不是编写更改函数

@api.depends('total')
def _amount_all(self):
    if self.total:
       total_amount = self.amount_total - self.total
    self.update({
           'amount_total': total_amount
        })