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##############################################################################
#
# Copyright (c) 2005 Nexedi SARL and Contributors. All Rights Reserved.
# Jerome Perrin <jerome@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.
#
##############################################################################
from AccessControl import ClassSecurityInfo
from Products.ERP5Type import Permissions, PropertySheet, Constraint
from Products.ERP5Type.Core.Folder import Folder
from Products.CMFCore.utils import getToolByName
from Products.ERP5Form.PreferenceTool import PreferenceTool
class Priority:
""" names for priorities
XXX This was moved to PreferenceTool directly
"""
SITE = 1
GROUP = 2
USER = 3
class Preference( Folder ):
"""
A system or user preference
TODO:
- migrate to ERP5Type the whole preference system
"""
# CMF Type Definition
meta_type = 'ERP5 Preference'
portal_type = 'Preference'
add_permission = Permissions.AddPortalContent
# Declarative properties
property_sheets = \
( PropertySheet.Base
, PropertySheet.XMLObject
, PropertySheet.DublinCore
, PropertySheet.Preference
)
# Declarative security
security = ClassSecurityInfo()
security.declareObjectProtected(Permissions.AccessContentsInformation)
def _clearCache(self):
"""Clear caches used by methods of this preference
# TODO: clear different caches according to the preference priority
# TODO: (XXX) currently, if one use enables / disables a cache, caches
for all other users are reset. This is not good for a system
in which users do a lot of preference validation. A better solution
is needed for this. But it is not easy because the concept of
"per user cache" has been proven to be ambiguous or useless.
In theory, a solution could consist in using more keys to
select caches or to delete "manually" certain cache keys.
"""
portal_caches = getToolByName(self.getPortalObject(), 'portal_caches')
portal_caches.clearCache(cache_factory_list=('erp5_ui_short',))
def _edit(self, **kw):
"""edit and clear all caches"""
self._clearCache()
Folder._edit(self, **kw)
def enable(self):
"""Workflow method"""
self._clearCache()
def disable(self):
"""Workflow method"""
self._clearCache()