web/web_easy_switch_company/model/res_users.py

# -*- encoding: utf-8 -*-
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#    See __openerp__.py file for Copyright and Licence Informations.
################################################################################

from openerp.osv.orm import Model

class res_users(Model):
    _inherit = 'res.users'

    ### Custom Function Section
    def change_current_company(self, cr, uid, company_id, context=None):
        return self.write(cr, uid, uid, {'company_id': company_id})