[Zope] _setOb vs. _setObject in BTreeFolder

[sean.upton@uniontrib.com]

_setOb() is in BTreeFolder; It is just a few lines of code to traverse
BTreeFolder._tree.  _setObject() is inherited from the ObjectManager mixin
class; this means that it does through some bureaucracy that makes it
slower, but safer and more secure.

If you use _setOb(), they don't appear in manage_main UI, but they are there
in the folder (well, in the _tree attribute, but this equates to the same
thing)...  This is because doing this seems to not correctly work with
methods like objectValues() and objectIds()...  I never investigated why
this is, because for my application of this, I never cared, because with 6
figure object counts, I didn't want to display a list of them in the UI
anyway.

Sean

-----Original Message-----
From: Thomas Guettler [mailto:zopestoller@thomas-guettler.de]
Sent: Monday, January 28, 2002 7:12 AM
To: zope@zope.org
Subject: [Zope] _setOb vs. _setObject in BTreeFolder


What is the difference between _setObject and _setOb in a BTreeFolder?

I discovered that if I use _setObject the BTreeFolder is not used, but 
when I use _setOb
it used, but the documents don't appear in mybtreefolder/manage_main.

BTreeFolder seems to have to storages: the inherited ones from Folder 
and the BTree storage.
This is confusing. I think it would be better if BTreeFolder would 
delegate all methods to _tree,
or rise an exception if you try to write the Folder storage.

BTreeFolder doesn't display the addProdukt drop-down box properly, too.

I use BTreeFolder version 0.2 from February 2001.

Are others having this problems, too?


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