############################################################################## # # Copyright (c) 2002 Nexedi SARL and Contributors. All Rights Reserved. # Jean-Paul Smets-Solanes <jp@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 Products.CMFCategory.Category import Category as CMFCategory from AccessControl import ClassSecurityInfo from Products.ERP5.Document.MetaNode import MetaNode from Products.ERP5.Document.MetaResource import MetaResource from Products.ERP5Type import Interface, Permissions, PropertySheet from Products.ERP5.Document.Predicate import Predicate from zLOG import LOG class Category(CMFCategory, Predicate, MetaNode, MetaResource): """ Category objects allow to define classification categories in an ERP5 portal. For example, a document may be assigned a color attribute (red, blue, green). Rather than assigning an attribute with a pop-up menu (which is still a possibility), we can prefer in certain cases to associate to the object a category. In this example, the category will be named color/red, color/blue or color/green Categories can include subcategories. For example, a region category can define region/europe region/europe/west/ region/europe/west/france region/europe/west/germany region/europe/south/spain region/americas region/americas/north region/americas/north/us region/americas/south region/asia In this example the base category is 'region'. Categories are meant to be indexed with the ZSQLCatalog (and thus a unique UID will be automatically generated each time a category is indexed). Categories allow define sets and subsets of objects and can be used for many applications : - association of a document to a URL - description of organisations (geographical, professional) Through acquisition, it is possible to create 'virtual' classifications based on existing documents or categories. For example, if there is a document at the URL organisation/nexedi and there exists a base category 'client', then the portal_categories tool will allow to create a virtual category client/organisation/nexedi Virtual categories allow not to duplicate information while providing a representation power equivalent to RDF or relational databases. Categories are implemented as a subclass of BTreeFolders NEW: categories should also be able to act as a domain. We should add a Domain interface to categories so that we do not need to regenerate report trees for categories. """ meta_type='ERP5 Category' portal_type='Category' # may be useful in the future... isPortalContent = 1 isRADContent = 1 isCategory = 1 allowed_types = ('ERP5 Category', ) # Declarative security security = ClassSecurityInfo() security.declareProtected(Permissions.ManagePortal, 'manage_editProperties', 'manage_changeProperties', 'manage_propertiesForm', ) property_sheets = ( PropertySheet.Base , PropertySheet.SimpleItem , PropertySheet.CategoryCore )