addons/account/wizard/account_change_currency.py

   1 #!/usr/bin/env python
   2 # -*- encoding: utf-8 -*-
   3 ##############################################################################
   4 #
   5 #    OpenERP, Open Source Management Solution
   6 #    Copyright (C) 2004-2010 Tiny SPRL (<http://tiny.be>).
   7 #
   8 #    This program is free software: you can redistribute it and/or modify
   9 #    it under the terms of the GNU Affero General Public License as
  10 #    published by the Free Software Foundation, either version 3 of the
  11 #    License, or (at your option) any later version.
  12 #
  13 #    This program is distributed in the hope that it will be useful,
  14 #    but WITHOUT ANY WARRANTY; without even the implied warranty of
  15 #    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16 #    GNU Affero General Public License for more details.
  17 #
  18 #    You should have received a copy of the GNU Affero General Public License
  19 #    along with this program.  If not, see <http://www.gnu.org/licenses/>.
  20 #
  21 ##############################################################################
  22
  23 from osv import osv, fields
  24 from tools.translate import _
  25
  26 class account_change_currency(osv.osv_memory):
  27     _name = 'account.change.currency'
  28     _description = 'Change Currency'
  29     _columns = {
  30        'currency_id': fields.many2one('res.currency', 'Change to', required=True, help="Select a currency to apply on the invoice"),
  31     }
  32
  33     def view_init(self, cr , uid , fields_list, context=None):
  34         obj_inv = self.pool.get('account.invoice')
  35         if context is None:
  36             context = {}
  37         if context.get('active_id',False):
  38             if obj_inv.browse(cr, uid, context['active_id']).state != 'draft':
  39                 raise osv.except_osv(_('Error'), _('You can only change currency for Draft Invoice !'))
  40             pass
  41
  42     def change_currency(self, cr, uid, ids, context=None):
  43         obj_inv = self.pool.get('account.invoice')
  44         obj_inv_line = self.pool.get('account.invoice.line')
  45         obj_currency = self.pool.get('res.currency')
  46         if context is None:
  47             context = {}
  48         data = self.read(cr, uid, ids)[0]
  49         new_currency = data['currency_id']
  50
  51         invoice = obj_inv.browse(cr, uid, context['active_id'], context=context)
  52         if invoice.currency_id.id == new_currency:
  53             return {}
  54         rate = obj_currency.browse(cr, uid, new_currency, context=context).rate
  55         for line in invoice.invoice_line:
  56             new_price = 0
  57             if invoice.company_id.currency_id.id == invoice.currency_id.id:
  58                 new_price = line.price_unit * rate
  59                 if new_price <= 0:
  60                     raise osv.except_osv(_('Error'), _('New currency is not confirured properly !'))
  61
  62             if invoice.company_id.currency_id.id != invoice.currency_id.id and invoice.company_id.currency_id.id == new_currency:
  63                 old_rate = invoice.currency_id.rate
  64                 if old_rate <= 0:
  65                     raise osv.except_osv(_('Error'), _('Currnt currency is not confirured properly !'))
  66                 new_price = line.price_unit / old_rate
  67
  68             if invoice.company_id.currency_id.id != invoice.currency_id.id and invoice.company_id.currency_id.id != new_currency:
  69                 old_rate = invoice.currency_id.rate
  70                 if old_rate <= 0:
  71                     raise osv.except_osv(_('Error'), _('Current currency is not confirured properly !'))
  72                 new_price = (line.price_unit / old_rate ) * rate
  73             obj_inv_line.write(cr, uid, [line.id], {'price_unit': new_price})
  74         obj_inv.write(cr, uid, [invoice.id], {'currency_id': new_currency}, context=context)
  75         return {'type': 'ir.actions.act_window_close'}
  76
  77 account_change_currency()
  78
  79 # vim:expandtab:smartindent:tabstop=4:softtabstop=4:shiftwidth=4: