[Zope] - Patch and some other questions

[Jim Fulton]

Andy Dustman wrote:
> 
> I created a unified diff patch for ZopeHTTPServer which incorporates the
> improved exception handling. It is diffed against 1.9.0b2. You'll need to
> go into the ZopeHTTPServer directory to apply it.
> 
> The other thing is: Upgrading. It looks like from the install program that
> if you do install over the old installation that it won't nuke your
> Data.bbb, which is good, but raises some other questions:
> 
> 1) Generally, can you merge or otherwise transfer data from Data.bbb to
> another? I suspect the answer is going to be something like "loop over
> the keys".

Yes.  At the Python level, BoboPOS has an API for exporting and
importing objects. (Read the source if you're interested.
The thing FKA BoboPOS3 actually has a documented API for this. :)
If you are using the Zope framework, there is a web interface for 
exporting and importing objects.  As it's name implies, it is a 
temporary interface until a nice interface can be designed.

You can export an object by invoking it's 'manage_exportHack'
method.  For example, to export folder a/b, you can go to
the URL:

  a/b/manage_exportHack

This created a file named 'export.bbe' in the var directory.

To import this file into another site, copy the file to the
other sites var directory and then invoke the method, 
'manage_importHack' on a folder object that you want to
import into.  For example, to import into the folder
x/y/z, simply visit x/y/z/manage_importHack.

 
> 2) How do you safely back up the database wrt things like locking and
> transactions? I also suspect a similar answer to #1...

You can simply back up the file.  Because of the way the file 
is written, it is highly unlikely for a backup file created 
directly to have a problem.  Alternatively, you could export 
the entire site and backup the export file.

Jim

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