1 # copyright 2015 LOGILAB S.A. (Paris, FRANCE), all rights reserved.

     2 # contact http://www.logilab.fr/ -- mailto:contact@logilab.fr

     3 #

     4 # This file is part of CubicWeb.

     5 #

     6 # CubicWeb is free software: you can redistribute it and/or modify it under the

     7 # terms of the GNU Lesser General Public License as published by the Free

     8 # Software Foundation, either version 2.1 of the License, or (at your option)

     9 # any later version.

    10 #

    11 # CubicWeb is distributed in the hope that it will be useful, but WITHOUT

    12 # ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS

    13 # FOR A PARTICULAR PURPOSE.  See the GNU Lesser General Public License for more

    14 # details.

    15 #

    16 # You should have received a copy of the GNU Lesser General Public License along

    17 # with CubicWeb.  If not, see <http://www.gnu.org/licenses/>.

    18 

    19 from cubicweb.predicates import is_instance

    20 from cubicweb.entities.adapters import ITreeAdapter

    21 from cubicweb.entities import AnyEntity, fetch_config

    22 

    23 

    24 class TreeNode(AnyEntity):

    25     __regid__ = 'TreeNode'

    26     fetch_attrs, cw_fetch_order = fetch_config(['name'])

    27 

    28 

    29 class ITreeNode(ITreeAdapter):

    30     __select__ = is_instance('TreeNode')

    31     tree_relation = 'parent'