##############################################################################
#
# Copyright (c) 2006 Nexedi SARL and Contributors. All Rights Reserved.
#                    Rafael M. Monnerat <rafael@nexedi.com>
#
# WARNING: This program as such is intended to be used by professional
# programmers who take the whole responsability of assessing all potential
# consequences resulting from its eventual inadequacies and bugs
# End users who are looking for a ready-to-use solution with commercial
# garantees and support are strongly adviced to contract a Free Software
# Service Company
#
# This program 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 2
# of the License, or (at your option) any later version.
#
# This program 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 this program; if not, write to the Free Software
# Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
#
##############################################################################

class PresenceRequestConstraint:
    """
    Presence Request Constraint
    """
    _constraints = (
      {   'id'            : 'title_existence',
          'description'   : 'Title must be defined',
          'type'          : 'StringAttributeDifferentFrom',
          'title'         :  '^ *$',
      },
      { 'id'            : 'destination',
        'description'   : 'Person must be defined',
        'type'          : 'CategoryMembershipArity',
        'min_arity'     : '1',
        'max_arity'     : '1',
        'portal_type'   : ('Person',),
        'base_category' : ('destination',),
      },
      { 'id'            : 'lines',
        'description'   : 'No Presence Request Period created yet',
        'type'          : 'ContentExistence',
        'portal_type'   : ('Presence Request Period', ),
      },
    )