account-financial-tools/account_move_line_purchase_info/models/stock_move.py

# Copyright 2017 Eficent Business and IT Consulting Services S.L.
#           (www.eficent.com)
# License AGPL-3.0 or later (https://www.gnu.org/licenses/agpl.html).

from odoo import api, models


class StockMove(models.Model):
    _inherit = "stock.move"

    @api.model
    def _prepare_account_move_line(self, qty, cost,
                                   credit_account_id, debit_account_id):
        res = super(StockMove, self)._prepare_account_move_line(
            qty, cost, credit_account_id, debit_account_id)
        for line in res:
            line[2]['purchase_line_id'] = self.purchase_line_id.id
        return res