from odoo import fields, models class LoanInterestLine(models.Model): _name = 'loan.interest.line' name = fields.Integer(string="Year", required=True) issue_line = fields.Many2one('loan.issue.line', string="Subscribed loan", required=True) partner_id = fields.Many2one(related='issue_line.partner_id', store=True, readlonly=True) amount = fields.Monetary(related='issue_line.amount', string="Subscribed amount", currency_field='company_currency_id', readonly=True) interest = fields.Monetary(string="Gross interest amount", currency_field='company_currency_id', readonly=True) net_interest = fields.Monetary(string="Net interest amount", currency_field='company_currency_id', readonly=True) taxes_rate = fields.Float(string="Taxes on interest", required=True) taxes_amount = fields.Monetary(string="Taxes amount", currency_field='company_currency_id', readonly=True) accrued_amount = fields.Monetary(string="Accrued amount", currency_field='company_currency_id', readonly=True) accrued_interest = fields.Monetary(string="Accrued gross interest", currency_field='company_currency_id', readonly=True) accrued_net_interest = fields.Monetary( string="Accrued net interest", currency_field='company_currency_id', readonly=True) accrued_taxes = fields.Monetary(string="Accrued taxes to pay", currency_field='company_currency_id', readonly=True) due_date = fields.Date(string="Due date") company_currency_id = fields.Many2one('res.currency', related='company_id.currency_id', string="Company Currency", readonly=True) company_id = fields.Many2one('res.company', related='issue_line.company_id', string="Company", readonly=True) state = fields.Selection([('draft', 'Draft'), ('due', 'Due'), ('requested', 'Payment requested'), ('donation', 'Donation'), ('paid', 'Paid') ], string="State", default="draft")