text: # This file is part of Indico.
  # Copyright (C) 2002 - 2021 CERN
  #
  # Indico is free software; you can redistribute it and/or
  # modify it under the terms of the MIT License; see the
  # LICENSE file for more details.
  
  from __future__ import unicode_literals
  
  from wtforms.validators import DataRequired
  
  from indico.modules.rb.event.fields import ContributionField, SessionBlockField
  from indico.util.i18n import _
  from indico.web.forms.base import IndicoForm
  
  
  class BookingListForm(IndicoForm):
      contribution = ContributionField(_("Contribution"), [DataRequired()],
                                       ajax_endpoint='rb.event_linkable_contributions',
                                       description=_("Enter the contribution name."))
      session_block = SessionBlockField(_("Session block"), [DataRequired()],
                                        ajax_endpoint='rb.event_linkable_session_blocks',
                                        description=_("Enter the session block name."))
  
      def __init__(self, *args, **kwargs):
          self.event = kwargs.pop('event')
          super(BookingListForm, self).__init__(*args, **kwargs)
  