cooperative-market/base_technical_features/models/res_users.py

# coding: utf-8
# © 2016 Opener B.V. (<https://opener.am>)
# License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
from openerp import api, fields, models
from openerp.exceptions import AccessError
from openerp.tools.translate import _


class ResUsers(models.Model):
    _inherit = 'res.users'

    technical_features = fields.Boolean(
        compute='get_technical_features',
        inverse='set_technical_features')
    show_technical_features = fields.Boolean(
        string='Show field Technical Features',
        compute='get_show_technical_features',
        help=('Whether to display the technical features field in the user '
              'preferences.'))

    @api.multi
    @api.depends('groups_id')
    def get_show_technical_features(self):
        """ Only display the technical features checkbox in the user
        preferences if the user has access to them """
        users = self.env.ref('base.group_no_one').users
        for user in self:
            user.show_technical_features = user in users

    @api.multi
    @api.depends('groups_id')
    def get_technical_features(self):
        """ Map user membership to boolean field value """
        users = self.env.ref(
            'base_technical_features.group_technical_features').users
        for user in self:
            user.technical_features = user in users

    @api.multi
    def set_technical_features(self):
        """ Map boolean field value to group membership, but checking
        access """
        group = self.env.ref(
            'base_technical_features.group_technical_features')
        for user in self:
            if self.env.ref('base.group_no_one') not in user.groups_id:
                raise AccessError(
                    _('The user does not have access to technical '
                      'features.'))
        if user.technical_features:
            self.sudo().write({'groups_id': [(4, group.id)]})
        else:
            self.sudo().write({'groups_id': [(3, group.id)]})

    def __init__(self, pool, cr):
        super(ResUsers, self).__init__(pool, cr)
        self.SELF_READABLE_FIELDS += [
            'technical_features', 'show_technical_features']
        self.SELF_WRITEABLE_FIELDS.append('technical_features')