old_contents: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  from odoo import api, fields, models, _
  from odoo.exceptions import UserError
  
  
  class ProductTemplate(models.Model):
      _inherit = 'product.template'
  
      available_in_pos = fields.Boolean(string='Available in POS', help='Check if you want this product to appear in the Point of Sale.', default=False)
      to_weight = fields.Boolean(string='To Weigh With Scale', help="Check if the product should be weighted using the hardware scale integration.")
      pos_categ_id = fields.Many2one(
          'pos.category', string='Point of Sale Category',
          help="Category used in the Point of Sale.")
  
      def unlink(self):
          product_ctx = dict(self.env.context or {}, active_test=False)
          if self.with_context(product_ctx).search_count([('id', 'in', self.ids), ('available_in_pos', '=', True)]):
              if self.env['pos.session'].search_count([('state', '!=', 'closed')]):
                  raise UserError(_('You cannot delete a product saleable in point of sale while a session is still opened.'))
          return super(ProductTemplate, self).unlink()
  
      @api.onchange('sale_ok')
      def _onchange_sale_ok(self):
          if not self.sale_ok:
              self.available_in_pos = False
  
  
  class ProductProduct(models.Model):
      _inherit = 'product.product'
  
      def unlink(self):
          product_ctx = dict(self.env.context or {}, active_test=False)
          if self.env['pos.session'].search_count([('state', '!=', 'closed')]):
              if self.with_context(product_ctx).search_count([('id', 'in', self.ids), ('product_tmpl_id.available_in_pos', '=', True)]):
                  raise UserError(_('You cannot delete a product saleable in point of sale while a session is still opened.'))
          return super(ProductProduct, self).unlink()
  
  
  class UomCateg(models.Model):
      _inherit = 'uom.category'
  
      is_pos_groupable = fields.Boolean(string='Group Products in POS',
          help="Check if you want to group products of this category in point of sale orders")
  
  
  class Uom(models.Model):
      _inherit = 'uom.uom'
  
      is_pos_groupable = fields.Boolean(related='category_id.is_pos_groupable', readonly=False)
  
new_contents: # -*- coding: utf-8 -*-
  # Part of Odoo. See LICENSE file for full copyright and licensing details.
  from odoo import api, fields, models, _
  from odoo.exceptions import UserError
  
  
  class ProductTemplate(models.Model):
      _inherit = 'product.template'
  
      available_in_pos = fields.Boolean(string='Available in POS', help='Check if you want this product to appear in the Point of Sale.', default=False)
      to_weight = fields.Boolean(string='To Weigh With Scale', help="Check if the product should be weighted using the hardware scale integration.")
      pos_categ_id = fields.Many2one(
          'pos.category', string='Point of Sale Category',
          help="Category used in the Point of Sale.")
  
      def unlink(self):
          product_ctx = dict(self.env.context or {}, active_test=False)
          if self.with_context(product_ctx).search_count([('id', 'in', self.ids), ('available_in_pos', '=', True)]):
              if self.env['pos.session'].sudo().search_count([('state', '!=', 'closed')]):
                  raise UserError(_('You cannot delete a product saleable in point of sale while a session is still opened.'))
          return super(ProductTemplate, self).unlink()
  
      @api.onchange('sale_ok')
      def _onchange_sale_ok(self):
          if not self.sale_ok:
              self.available_in_pos = False
  
  
  class ProductProduct(models.Model):
      _inherit = 'product.product'
  
      def unlink(self):
          product_ctx = dict(self.env.context or {}, active_test=False)
          if self.env['pos.session'].sudo().search_count([('state', '!=', 'closed')]):
              if self.with_context(product_ctx).search_count([('id', 'in', self.ids), ('product_tmpl_id.available_in_pos', '=', True)]):
                  raise UserError(_('You cannot delete a product saleable in point of sale while a session is still opened.'))
          return super(ProductProduct, self).unlink()
  
  
  class UomCateg(models.Model):
      _inherit = 'uom.category'
  
      is_pos_groupable = fields.Boolean(string='Group Products in POS',
          help="Check if you want to group products of this category in point of sale orders")
  
  
  class Uom(models.Model):
      _inherit = 'uom.uom'
  
      is_pos_groupable = fields.Boolean(related='category_id.is_pos_groupable', readonly=False)
  
subject: access rights on POS for product deletion