[Zope3-checkins] CVS: Zope3/src/zope/app - backward.zcml:1.1

[Jim Fulton]

Update of /cvs-repository/Zope3/src/zope/app
In directory cvs.zope.org:/tmp/cvs-serv16445/src/zope/app

Added Files:
	backward.zcml 
Log Message:
Added a standard place to configure backward-compatability fixup
subscribers.  These subscribers are called when the database is
opened. The provide an opprtunity to convert object data after a
refactoring. They should first make a test to see if they've already
run, so that they can execute quickly after running the first time.


=== Added File Zope3/src/zope/app/backward.zcml ===
<configure 
    xmlns="http://namespaces.zope.org/zope"
    xmlns:event="http://namespaces.zope.org/event"
    >
  <!-- Backward compatability scripts                      -->
  <!-- We'll keep these around for two months              -->


  <!-- Thu Aug 28 2003 -->
  <event:subscribe
      subscriber="zope.app.services.servicecontainer.fixup"
      event_types="zope.app.interfaces.event.IDatabaseOpenedEvent" 
      />
 
</configure>