Purging all old CMFEditions versions

Question

We have big huge site which database should be prepared for development copies.

How one can remove all old history versions of all content items? This way we could g

Answer 1

I found (in what was probably a case of RTFM on my case, but anyway) that opening up the Zope site (http://localhost:8080/ say) directly, and navigating as follows:

1. manage page
2. "Control Panel"
3. "database"
4. "Main"

led me to a page which offered to "pack" the database and remove all history older than X days old. This worked like a treat!

Answer 2

1. Go to portal_purgepolicy and set the number to some number (I usually use '3' to keep at least some history).

2. Run the following script:

   from DateTime import DateTime
   from Products.CMFCore.utils import getToolByName
   from Products.CMFEditions.utilities import dereference
   
   
   policy = getToolByName(self.context, 'portal_purgepolicy')
   catalog = getToolByName(self.context, 'portal_catalog')
   
   for count, brain in enumerate(catalog()):
       obj = brain.getObject()
   
       # only purge old content
       if obj.created() < (DateTime() - 30):
           obj, history_id = dereference(obj)
           policy.beforeSaveHook(history_id, obj)
           print 'purged object ' + obj.absolute_url_path()
   

Answer 3

I've details for Plone 3 (but note that I know that this is changed a little on Plone 4).

In Plone 3.3 histories are all stored inside the portal_historiesstorage/repo object. There you have a _shadowStorage subobject.

I found that if you delete this persistent object, it's created from scratch when needed.

Hope this help in some way

Answer 4

Here are instructions to delete _shadowStorage, as keul hints above:

Start ZEO client in debug mode:

  bin/client1 debug

Then:

  del app.yoursiteid.portal_historiesstorage._shadowStorage
  import transaction ; transaction.commit()

No warranty. No idea what it is deleting. Apparently you get rid of all histories.