# HG changeset patch
# User Thierry Florac <tflorac@ulthar.net>
# Date 1593447809 -7200
# Node ID 4839e76911322edc650d1069a7291c60509a85ef
# Parent  1485db1e2b5e46b1fea62713ba8337e1d6b59f7d
Updated reverse-links view to only display the last version containing a link to current context

diff -r 1485db1e2b5e -r 4839e7691132 src/pyams_content/shared/common/zmi/reverse.py
--- a/src/pyams_content/shared/common/zmi/reverse.py	Fri Jun 26 12:54:13 2020 +0200
+++ b/src/pyams_content/shared/common/zmi/reverse.py	Mon Jun 29 18:23:29 2020 +0200
@@ -10,41 +10,37 @@
 # FOR A PARTICULAR PURPOSE.
 #
 
-__docformat__ = 'restructuredtext'
-
+from hypatia.catalog import CatalogQuery
+from hypatia.interfaces import ICatalog
+from hypatia.query import Any, Eq, Or
+from z3c.table.interfaces import IColumn, IValues
+from zope.interface import Interface, implementer
 
-# import standard library
-
-# import interfaces
-from hypatia.interfaces import ICatalog
+from pyams_catalog.query import CatalogResultSet
 from pyams_content.shared.common.interfaces import IWfSharedContent
 from pyams_content.shared.common.interfaces.zmi import ISiteRootDashboardTable
 from pyams_content.shared.site.interfaces import ISiteContainer
+from pyams_pagelet.pagelet import pagelet_config
 from pyams_portal.interfaces import IPortalTemplate
 from pyams_sequence.interfaces import ISequentialIdInfo
+from pyams_skin.container import ContainerView
 from pyams_skin.interfaces import IInnerPage
 from pyams_skin.layer import IPyAMSLayer
-from pyams_utils.interfaces import VIEW_SYSTEM_PERMISSION
-from pyams_workflow.interfaces import IWorkflowVersions
-from pyams_zmi.interfaces.menu import IContentManagementMenu
-from pyams_zmi.layer import IAdminLayer
-from z3c.table.interfaces import IValues, IColumn
-
-# import packages
-from hypatia.catalog import CatalogQuery
-from hypatia.query import Eq, Or, Any
-from pyams_catalog.query import CatalogResultSet
-from pyams_pagelet.pagelet import pagelet_config
-from pyams_skin.container import ContainerView
 from pyams_skin.table import BaseTable, NameColumn
 from pyams_skin.viewlet.menu import MenuItem
-from pyams_utils.adapter import adapter_config, ContextRequestViewAdapter
-from pyams_utils.list import unique_iter
+from pyams_utils.adapter import ContextRequestViewAdapter, adapter_config
+from pyams_utils.interfaces import ICacheKeyValue, VIEW_SYSTEM_PERMISSION
+from pyams_utils.list import unique_iter_max
 from pyams_utils.registry import get_utility
 from pyams_utils.traversing import get_parent
 from pyams_viewlet.viewlet import viewlet_config
+from pyams_workflow.interfaces import IWorkflowState
+from pyams_zmi.interfaces.menu import IContentManagementMenu
+from pyams_zmi.layer import IAdminLayer
 from pyams_zmi.view import AdminView
-from zope.interface import implementer, Interface
+
+
+__docformat__ = 'restructuredtext'
 
 from pyams_content import _
 
@@ -83,7 +79,7 @@
         def get_item(result):
             parent = get_parent(result, IWfSharedContent)
             if parent is not None:
-                return IWorkflowVersions(parent).get_last_versions(count=1)[0]
+                return parent
             parent = get_parent(result, IPortalTemplate)
             if parent is None:
                 parent = get_parent(result, ISiteContainer)
@@ -95,9 +91,12 @@
         oid = ISequentialIdInfo(self.context).hex_oid
         params = Or(Eq(catalog['link_reference'], oid),
                     Any(catalog['link_references'], {oid}))
-        return unique_iter(map(get_item,
-                               CatalogResultSet(CatalogQuery(catalog).query(params,
-                                                                            sort_index='modified_date'))))
+        return unique_iter_max(map(get_item,
+                                   CatalogResultSet(CatalogQuery(catalog).query(params))),
+                               key=lambda x: getattr(ISequentialIdInfo(x, None),
+                                                     'oid', ICacheKeyValue(x)),
+                               sort_key=lambda x: getattr(IWorkflowState(x, None),
+                                                          'version_id', ICacheKeyValue(x)))
 
 
 @pagelet_config(name='reverse-links.html', context=IWfSharedContent, layer=IPyAMSLayer,