text: from __future__ import unicode_literals
  
  import django_tables2 as tables
  
  from django.utils.safestring import mark_safe
  
  
  class BaseTable(tables.Table):
      """
      Default table for object lists
      """
      def __init__(self, *args, **kwargs):
          super(BaseTable, self).__init__(*args, **kwargs)
  
          # Set default empty_text if none was provided
          if self.empty_text is None:
              self.empty_text = 'No {} found.'.format(self._meta.model._meta.verbose_name_plural)
  
      class Meta:
          attrs = {
              'class': 'table table-hover table-headings',
          }
  
  
  class ToggleColumn(tables.CheckBoxColumn):
  
      def __init__(self, *args, **kwargs):
          default = kwargs.pop('default', '')
          visible = kwargs.pop('visible', False)
          super(ToggleColumn, self).__init__(*args, default=default, visible=visible, **kwargs)
  
      @property
      def header(self):
          return mark_safe('<input type="checkbox" id="toggle_all" title="Toggle all" />')
  