~account-core-editors/account-invoicing/6.1

# -*- coding: utf-8 -*-

##############################################################################

#    

#    Copyright (C) 2011 Agile Business Group sagl (<http://www.agilebg.com>)

#    Copyright (C) 2011 Domsense srl (<http://www.domsense.com>)

#    All Rights Reserved

#

#    This program is free software: you can redistribute it and/or modify

#    it under the terms of the GNU Affero 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 General Public License for more details.

#

#    You should have received a copy of the GNU Affero General Public License

#    along with this program.  If not, see <http://www.gnu.org/licenses/>.

#

##############################################################################

from osv import fields, osv

class account_invoice(osv.osv):

    _inherit = "account.invoice"

    _columns = {

        'internal_number': fields.char('Invoice Number', size=32, readonly=True, states={'draft':[('readonly',False)]}),

        }

account_invoice()