How can I modify a selection field from another class in odoo 9?

Question

I want to modify the "invoice_status" field from the "SaleOrder" class asociated to an invoice after the validation of that invoice.

The validation of an invoice is defined in the "AccountInvoice" class, inside the account module:

@api.multi
def invoice_validate(self):
  ...

I realised that the "name" field from "SaleOrder" class is related with the "origin" field from "AccountInvoice" class.

So, i modified the invoice_validate function like this:

@api.multi
def invoice_validate(self):
    for invoice in self:
        ...
        origin = self.origin
        sale_order_id = self.env['sale.order'].search([('name', '=', origin)])[0].id
        sale_order_obj = self.env['sale.order'].browse(sale_order_id)
        sale_order_obj.write({'invoice_status': 'invoiced'})
    return self.write({'state': 'open'})

For some reason, the write parte doesn't work.

That is the official definition of the "invoice_status" field from SaleOrder class:

invoice_status = fields.Selection([
    ('upselling', 'Upselling Opportunity'),
    ('invoiced', 'Fully Invoiced'),
    ('to invoice', 'To Invoice'),
    ('no', 'Nothing to Invoice')
    ], string='Invoice Status', compute='_get_invoiced', store=True, readonly=True, default='no')

Majikat Majikat · Accepted Answer · 2017-01-19T07:03:10

You cannot set the value of invoice_status because it is a compute field. Even if you set it's value, it will be recomputed again when the field it depends on is changed and will eventually find the value it is supposed to have --and write that value instead of yours.

Odoo made it so that it work (it will say invoiced when the order is invoiced). So I don't think you need to do it maually. If you badly need to have your value stored, you should change that field so that it is not computed anymore, or create another field.

How can I modify a selection field from another class in odoo 9?

2 Answers