old_contents: # -*- coding: utf-8 -*-
  
  # Copyright 2012 Universidad Politécnica de Madrid
  
  # This file is part of Wirecloud.
  
  # Wirecloud is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  
  # Wirecloud 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 General Public License
  # along with Wirecloud.  If not, see <http://www.gnu.org/licenses/>.
  
  from django.db import models
  from django.utils.translation import ugettext as _
  
  
  class Market(models.Model):
      name = models.CharField(_('Name'), max_length=50)
      options = models.TextField(_('Options'))
  
      class Meta:
          app_label = 'wirecloud'
  
new_contents: # -*- coding: utf-8 -*-
  
  # Copyright 2012 Universidad Politécnica de Madrid
  
  # This file is part of Wirecloud.
  
  # Wirecloud is free software: you can redistribute it and/or modify
  # it under the terms of the GNU General Public License as published by
  # the Free Software Foundation, either version 3 of the License, or
  # (at your option) any later version.
  
  # Wirecloud 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 General Public License
  # along with Wirecloud.  If not, see <http://www.gnu.org/licenses/>.
  
  from django.contrib.auth.models import User, Group
  from django.db import models
  from django.utils.translation import ugettext as _
  
  
  class Market(models.Model):
      user = models.ForeignKey(User, verbose_name=_('User'), blank=True, null=True)
      name = models.CharField(_('Name'), max_length=50)
      options = models.TextField(_('Options'))
  
      class Meta:
  	unique_together = ('user', 'name')
          app_label = 'wirecloud'
  
subject: create a unique index for name field in market model