from odoo import models class AccountPaymentRegister(models.TransientModel): """Alter loan repayment line state based on invoice status""" _inherit = 'account.payment.register' def _post_payments(self, to_process, edit_mode=False): """Change repayment record state to 'paid' while registering the payment""" res = super()._post_payments(to_process, edit_mode=False) for record in self: loan_line_id = self.env['repayment.line'].search([ ('name', 'ilike', record.communication)]) loan_line_id.write({'state': 'paid'}) return res