old_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  #
  #    OpenERP, Open Source Management Solution
  #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
  #
  #    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.osv import fields, osv
  
  class sale_order(osv.osv):
      _inherit = "sale.order"
  
      def action_button_confirm(self, cr, uid, ids, context=None):
          sale_order_attachment_obj = self.pool.get('ir.attachment')
          a_ids = sale_order_attachment_obj.search(cr, uid,[('res_model','=','sale.order'),('res_id','=',ids[0])])
          if not a_ids:
              raise osv.except_osv(
                  _('Cannot confirm this sales order!'),
                  _('Please attach supporting documentation.'))
  
          return super(sale_order, self).action_button_confirm(cr, uid, ids, context)
  
new_contents: # -*- coding: utf-8 -*-
  ##############################################################################
  #
  #    OpenERP, Open Source Management Solution
  #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
  #
  #    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.osv import fields, osv
  from openerp.tools.translate import _
  
  class sale_order(osv.osv):
      _inherit = "sale.order"
  
      def action_button_confirm(self, cr, uid, ids, context=None):
          sale_order_attachment_obj = self.pool.get('ir.attachment')
          a_ids = sale_order_attachment_obj.search(cr, uid,[('res_model','=','sale.order'),('res_id','=',ids[0])])
          if not a_ids:
              raise osv.except_osv(
                  _('Cannot confirm this sales order!'),
                  _('Please attach supporting documentation.'))
  
          return super(sale_order, self).action_button_confirm(cr, uid, ids, context)
  
subject: Fix missing import