"""the Bookmark entity type for internal links

:organization: Logilab

:copyright: 2001-2010 LOGILAB S.A. (Paris, FRANCE), license is LGPL v2.

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

:license: GNU Lesser General Public License, v2.1 - http://www.gnu.org/licenses

"""

__docformat__ = "restructuredtext en"

_ = unicode

from yams.buildobjs import EntityType, RelationType, SubjectRelation, String

from cubicweb.schema import RRQLExpression

class Bookmark(EntityType):

    """bookmarks are used to have user's specific internal links"""

    __permissions__ = {

        'read':   ('managers', 'users', 'guests',),

        'add':    ('managers', 'users',),

        'delete': ('managers', 'owners',),

        'update': ('managers', 'owners',),

        }

    title = String(required=True, maxsize=128, internationalizable=True)

    path  = String(maxsize=512, required=True,

                   description=_("relative url of the bookmarked page"))

    bookmarked_by = SubjectRelation('CWUser',

                                    description=_("users using this bookmark"))

class bookmarked_by(RelationType):

    __permissions__ = {'read':   ('managers', 'users', 'guests',),

                   # test user in users group to avoid granting permission to anonymous user

                   'add':    ('managers', RRQLExpression('O identity U, U in_group G, G name "users"')),

                   'delete': ('managers', RRQLExpression('O identity U, U in_group G, G name "users"')),

                   }