invoice.py

# -*- coding: utf-8 -*-
##############################################################################
#
#    Copyright (C) 2011 Domsense srl (<http://www.domsense.com>)
#    Copyright (C) 2011-2013 Agile Business Group sagl
#    (<http://www.agilebg.com>)
#    @author Lorenzo Battistini <lorenzo.battistini@agilebg.com>
#    Ported to OpenERP 7.0 by Alex Comba <alex.comba@agilebg.com>
#
#    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 Affero 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 openerp import models, fields


class account_invoice(models.Model):
    _inherit = "account.invoice"

    internal_number = fields.Char(states={'draft': [('readonly', False)]})