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R3600/invenio/ext/principal/wrappers.py
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wrappers.py
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# -*- coding: utf-8 -*-
#
# This file is part of Invenio.
# Copyright (C) 2014 CERN.
#
# Invenio 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.
#
# Invenio 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 Invenio; if not, write to the Free Software Foundation, Inc.,
# 59 Temple Place, Suite 330, Boston, MA 02111-1307, USA.
"""Define action class and registry."""
import six
from werkzeug.local import LocalProxy
class ActionsRegistry(type):
"""Action registry."""
__actions_registry__ = []
def __init__(cls, name, bases, dct):
"""Register cls to actions registry."""
if not dct.get('__prototype__', False):
cls.__actions_registry__.append(cls)
super(ActionsRegistry, cls).__init__(name, bases, dct)
@property
def name(cls):
"""Return lowercased action class name."""
return cls.__name__.lower()
@property
def description(cls):
"""Return stripped class documentation string."""
return cls.__doc__.strip()
actions = LocalProxy(lambda: ActionsRegistry.__actions_registry__)
"""List of registered actions."""
@six.add_metaclass(ActionsRegistry)
class Action(object):
"""Default action description."""
__prototype__ = True # do not register this class
allowedkeywords = []
optional = False
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