[Erp5-dev] upgrading issue

[Mikolaj Antoszkiewicz]

Hello, again

The solution that is now working, was to change configuration in the 
SelectionTool from Persistent Mapping support to Memcached Tool.

With Persistent Mapping it all went to hell, when trying to get ghost 
object, unpickler found a string instead of a class.

The question that arises is:

What should be supported: Persistent Mapping or Memcached Tool by the 
Selection Tool?
My guess is that it should be Memcached Tool, but by default Persistent 
Mapping is set in Selection Tool configuration...

Mikolaj



Mikolaj Antoszkiewicz wrote:
> Hello,
> 
> I was in proces of upgrading a site from 18850 to 20821.
> 
> After updating Products and first Business Template (which was a catalog 
> template) I cannot view any form, except the Title Page.
> 
> Exception follows:
>      *  Module Products.PageTemplates.ZRPythonExpr, line 47, in __call__
>        __traceback_info__: 
> here.portal_selections.getSelectionInvertModeFor(request['selection_name']) 
> and 'filter_on' or 'filter'
>      * Module Python expression 
> "here.portal_selections.getSelectionInvertModeFor(request['selection_name']) 
> and 'filter_on' or 'filter'", line 1, in <expression>
>      * Module Products.ERP5Form.SelectionTool, line 368, in 
> getSelectionInvertModeFor
>      * Module Products.ERP5Form.SelectionTool, line 202, in getSelectionFor
>      * Module Products.ERP5Form.SelectionTool, line 1249, in 
> _getSelectionFromContainer
>      * Module ZODB.Connection, line 704, in setstate
>      * Module ZODB.Connection, line 758, in _setstate
>      * Module ZODB.serialize, line 495, in setGhostState
>      * Module ZODB.serialize, line 488, in getState
>      * Module ZODB.serialize, line 436, in _persistent_load
>      * Module ZODB.Connection, line 208, in get
>      * Module ZODB.serialize, line 476, in getGhost
> 
> TypeError: issubclass() arg 1 must be a class
> 
> 
> It looks like a problem concerning SelectionTool, but what's a 
> GhostState? ooOOOOooooOOooOOOooo :)
> Has anybody encountered such a problem?
> 
> Mikolaj
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