Invoice Refund

Question

Hello everyone,
In the invoice I had added a field the invoice number and depending on this field the refund invoice line will be filled the pb is when I save those line are deleted.
This is my code:
'invoice_id' : fields.many2one('account.invoice', string='Invoice number'),
def onchange_invoice_id(self, cr, uid, ids, invoice_id, context=None):
obj_inv_line = self.pool.get('account.invoice.line')
acc_line_ids = []
if invoice_id:
acc_line_ids = obj_inv_line.search(cr, uid, [('invoice_id', '=', in

ayman mohammed adam · Accepted Answer

Hi
you must overwrite create and write function, then you must  call this onchange function  and update vals dictionary values before the return like this:
def create(self, cr, uid, vals, context=None):
res= {}
res= self.onchange_invoice_id(cr, uid, [],vals.get('invoice_id',False), context=context)
vals.update(res.get('value',{}))
return super(your_class_name, self).create(cr, uid, vals, context=context)

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