cooperative-market/beesdoo_product_usability/models/beesdoo_product.py

from odoo import api, fields, models


class BeesdooProduct(models.Model):
    _inherit = "product.template"

    main_supplierinfo = fields.Many2one(
        comodel_name="product.supplierinfo",
        string="Main Supplier Information",
        compute="_compute_main_supplierinfo",
    )
    main_price = fields.Float(
        string="Supplier Price", compute="_compute_main_supplierinfo"
    )
    main_minimum_qty = fields.Float(
        string="Minimum Quantity", compute="_compute_main_supplierinfo"
    )

    @api.multi
    @api.depends("seller_ids")
    def _compute_main_supplierinfo(self):
        for product in self:
            supplierinfo = product._get_main_supplier_info()
            product.main_supplierinfo = supplierinfo
            product.main_price = supplierinfo.price
            product.main_minimum_qty = supplierinfo.min_qty