'Sets allowed values'

def __init__(self, user, *args, **kwargs):

    if ('instance' in kwargs):
        self.instance = kwargs['instance']
        del kwargs['instance']
    super(MassActionForm, self).__init__(*args, **kwargs)
    self.fields['status'].queryset = Object.filter_permitted(user, TicketStatus.objects, mode='x')
    self.fields['status'].label = _('Status')
    self.fields['service'].queryset = Object.filter_permitted(user, Service.objects, mode='x')
    self.fields['service'].label = _('Service')
    self.fields['queue'].queryset = Object.filter_permitted(user, TicketQueue.objects, mode='x')
    self.fields['queue'].label = _('Queue')
    self.fields['delete'] = forms.ChoiceField(label=_('Delete'), choices=(('', '-----'), ('delete', _('Delete    Completely')), ('trash', _('Move    to    Trash'))), required=False)
