muk_base/muk_attachment_lobject/__init__.py

###################################################################################
#
#    Copyright (c) 2017-2019 MuK IT GmbH.
#
#    This file is part of MuK Large Objects Attachment 
#    (see https://mukit.at).
#
#    This program is free software: you can redistribute it and/or modify
#    it under the terms of the GNU Lesser General Public License as published by
#    the Free Software Foundation, either version 3 of the License, or
#    (at your option) any later version.
#
#    This program is distributed in the hope that it will be useful,
#    but WITHOUT ANY WARRANTY; without even the implied warranty of
#    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
#    GNU Lesser General Public License for more details.
#
#    You should have received a copy of the GNU Lesser General Public License
#    along with this program. If not, see <http://www.gnu.org/licenses/>.
#
###################################################################################

from odoo import api, SUPERUSER_ID
from odoo.tools import config

from . import models

def _install_force_storage(cr, registry):
    if config.get("auto_storage_migration", False):
        env = api.Environment(cr, SUPERUSER_ID, {})
        params = env['ir.config_parameter'].sudo()
        params.set_param('ir_attachment.location', 'lobject')
        attachment = env['ir.attachment'].sudo().force_storage()
    
def _uninstall_force_storage(cr, registry):
    env = api.Environment(cr, SUPERUSER_ID, {})
    params = env['ir.config_parameter'].sudo()
    location = params.get_param('ir_attachment.location')
    if location == 'lobject':
        params.set_param('ir_attachment.location', 'file')
        attachment = env['ir.attachment'].sudo().force_storage()