# HG changeset patch
# User Thierry Florac <thierry.florac@onf.fr>
# Date 1432118650 -7200
# Node ID 43c135a76ab2fb081bcfbd7a1baa52cb81574190
# Parent  08e003da5f9e45bbd4408a02aba0921ac37e94f0
Added "get_last_versions" method

diff -r 08e003da5f9e -r 43c135a76ab2 src/pyams_workflow/interfaces/__init__.py
--- a/src/pyams_workflow/interfaces/__init__.py	Wed May 20 12:43:47 2015 +0200
+++ b/src/pyams_workflow/interfaces/__init__.py	Wed May 20 12:44:10 2015 +0200
@@ -9,8 +9,6 @@
 # WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
 # FOR A PARTICULAR PURPOSE.
 #
-from zope.lifecycleevent import ObjectCreatedEvent
-from zope.lifecycleevent.interfaces import IObjectCreatedEvent
 
 __docformat__ = 'restructuredtext'
 
@@ -20,10 +18,12 @@
 # import interfaces
 from zope.annotation.interfaces import IAttributeAnnotatable
 from zope.interface.interfaces import IObjectEvent, ObjectEvent
+from zope.lifecycleevent.interfaces import IObjectCreatedEvent
 
 # import packages
 from pyams_security.schema import Principal
 from zope.interface import implementer, invariant, Interface, Attribute, Invalid
+from zope.lifecycleevent import ObjectCreatedEvent
 from zope.schema import Choice, Datetime, Set, TextLine, Text, List, Object, Int
 
 from pyams_workflow import _
@@ -284,6 +284,9 @@
     def get_versions(self, state=None):
         """Get all versions of object known for this (optional) state"""
 
+    def get_last_versions(self, count=1):
+        """Get last versions of this object. Set count=0 to get all versions."""
+
     def add_version(self, content, state):
         """Return new unique version id"""
 
diff -r 08e003da5f9e -r 43c135a76ab2 src/pyams_workflow/versions.py
--- a/src/pyams_workflow/versions.py	Wed May 20 12:43:47 2015 +0200
+++ b/src/pyams_workflow/versions.py	Wed May 20 12:44:10 2015 +0200
@@ -140,7 +140,13 @@
                 [versions.add(self[str(version)]) for version in self.versions_by_state.get(state, ())]
             return versions
         else:
-            return self.values()
+            return (v for k, v in sorted(self.items(), key=lambda x: int(x[0])))
+
+    def get_last_versions(self, count=1):
+        result = list((v for k, v in sorted(self.items(), key=lambda x: -int(x[0]))))
+        if count:
+            result = result[:count]
+        return result
 
     def add_version(self, content, state):
         self.last_version_id += 1