[Zope] 2.5 upgrade, Sessions - too clever for myself

[Matthew T. Kromer]

Brad Clements wrote:

>Well, it seems worse actually.
>
>1. I restored last nights backed up Data.fs and friends
>
>2. I started Zope and got the expected traceback/crash in SessionDataManager
>
>3. I changed the SessionDataManager.py code as directed in the ugprade workaround
>
>4. I started Zope
>
>5. Deleted /session_data_manager
>
>6. Created a DTML method as session_data_manager placeholder
>

I don't understand why you did step 6.  It seems extraneous to me.

>
>
>7. changed SessionDataManager.py code back to original
>
>8. Restarted Zope (used restart button, not shutdown and start &)
>

Well, I always recommend a shutdown and start...  it shouldn't have 
mattered, though.

>
>9. Now, code that used REQUEST.SESSION.getSessionData() fails
>
>10. I deleted the dummy session_data_manager dtml method
>

Well, although this undoes step 6, I wouldn't have done it quite that way.

>
>11. Restart Zope
>
>12. Now REQUEST.SESSION.getSessionData() works (session_data_manager has 
>re-appeared in /)
>
>13. restart zope
>
>14. Now REQUEST.SESSION.getSessionData() gives AttributeError, because the 
>SESSION object doesn't have that method.
>
>15. Delete session_data_manager object
>

What is the session_data_manager object that's reappearing? I trust it 
is the right one?

>
>16. Restart Zope
>
>17. Continue at step 12.
>
>So .. session_data_manager object works only when it's first re-added by whatever 
>adds it. On the next restart, it does not work.
>
>I need to fix this in the next hour (you know, one of those development semi-production 
>websites :-(    Do I move back to 2.5.B3? 
>


-- 
Matt Kromer
Zope Corporation  http://www.zope.com/