("none", "Not Applicable")], "Invoice Control",
select=True, required=True, readonly=True, states={'draft': [('readonly', False)]}),
'company_id': fields.many2one('res.company', 'Company', required=True, select=True, states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}),
("none", "Not Applicable")], "Invoice Control",
select=True, required=True, readonly=True, states={'draft': [('readonly', False)]}),
'company_id': fields.many2one('res.company', 'Company', required=True, select=True, states={'done':[('readonly', True)], 'cancel':[('readonly',True)]}),