text: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  
  from odoo import api, fields, models
  
  
  class SaleOrderLine(models.Model):
      _inherit = "sale.order.line"
  
      @api.multi
      def _prepare_invoice_line(self, qty):
          res = super(SaleOrderLine, self)._prepare_invoice_line(qty)
          default_analytic_account = self.env['account.analytic.default'].account_get(self.product_id.id, self.order_id.partner_id.id, self.order_id.user_id.id, fields.Date.today())
          if default_analytic_account:
              res.update({'account_analytic_id': default_analytic_account.analytic_id.id})
          return res
  