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and subject line Bug#177767: fixed in zope-btreefolder2 0.5.0-2
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Subject: RFP: zope-btreefolder2 -- BTreeFolder2, an enhanced BTree folder for
Zope
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Date: Tue, 21 Jan 2003 20:38:42 +0100
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Package: wnpp
Version: unavailable; reported 2003-01-21
Severity: wishlist
* Package name : zope-btreefolder2
Version : 0.5.0
Upstream Author : Shane Hathaway <shane{at}zope{dot}com>
* URL : http://hathaway.freezope.org/Software/BTreeFolder2
* License : ZPL 2.0
Description : BTreeFolder2, an enhanced BTree folder for Zope
BTreeFolder2 is a Zope product that acts like a Zope folder but can
store many more items.
When you fill a Zope folder with too many items, both Zope and your
browser get overwhelmed. Zope has to load and store a large folder
object, and the browser has to render large HTML tables repeatedly.
Zope can store a lot of objects, but it has trouble storing a lot of
objects in a single standard folder.
Zope Corporation once had an extensive discussion on the subject. It
was decided that we would expand standard folders to handle large
numbers of objects gracefully. Unfortunately, Zope folders are used
and extended in so many ways today that it would be difficult to
modify standard folders in a way that would be compatible with all
Zope products.
So the BTreeFolder product was born. It stored all subobjects in a
ZODB BTree, a structure designed to allow many items without loading
them all into memory. It also rendered the contents of the folder as
a simple select list rather than a table. Most browsers have no
trouble rendering large select lists.
But there was still one issue remaining. BTreeFolders still stored
the ID of all subobjects in a single database record. If you put tens
of thousands of items in a single BTreeFolder, you would still be
loading and storing a multi-megabyte folder object. Zope can do this,
but not quickly, and not without bloating the database.
BTreeFolder2 solves this issue. It stores not only the subobjects but
also the IDs of the subobjects in a BTree. It also batches the list
of items in the UI, showing only 1000 items at a time. So if you
write your application carefully, you can use a BTreeFolder2 to store
as many items as will fit in physical storage.
There are products that depend on the internal structure of the
original BTreeFolder, however. So rather than risk breaking those
products, the product has been renamed. You can have both products
installed at the same time. If you're developing new applications,
you should use BTreeFolder2.
-- System Information:
Debian Release: testing/unstable
Architecture: i386
Kernel: Linux hq 2.4.18 #6 Sun Oct 27 11:09:10 CET 2002 i686
Locale: LANG=POSIX, LC_CTYPE=da_DK
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From: David Coe <[EMAIL PROTECTED]>
To: [EMAIL PROTECTED]
X-Katie: lisa $Revision: 1.23 $
Subject: Bug#177767: fixed in zope-btreefolder2 0.5.0-2
Message-Id: <[EMAIL PROTECTED]>
Sender: James Troup <[EMAIL PROTECTED]>
Date: Mon, 17 Mar 2003 13:42:31 -0500
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We believe that the bug you reported is fixed in the latest version of
zope-btreefolder2, which is due to be installed in the Debian FTP archive:
zope-btreefolder2_0.5.0-2.diff.gz
to pool/main/z/zope-btreefolder2/zope-btreefolder2_0.5.0-2.diff.gz
zope-btreefolder2_0.5.0-2.dsc
to pool/main/z/zope-btreefolder2/zope-btreefolder2_0.5.0-2.dsc
zope-btreefolder2_0.5.0-2_all.deb
to pool/main/z/zope-btreefolder2/zope-btreefolder2_0.5.0-2_all.deb
zope-btreefolder2_0.5.0.orig.tar.gz
to pool/main/z/zope-btreefolder2/zope-btreefolder2_0.5.0.orig.tar.gz
A summary of the changes between this version and the previous one is
attached.
Thank you for reporting the bug, which will now be closed. If you
have further comments please address them to [EMAIL PROTECTED],
and the maintainer will reopen the bug report if appropriate.
Debian distribution maintenance software
pp.
David Coe <[EMAIL PROTECTED]> (supplier of updated zope-btreefolder2 package)
(This message was generated automatically at their request; if you
believe that there is a problem with it please contact the archive
administrators by mailing [EMAIL PROTECTED])
-----BEGIN PGP SIGNED MESSAGE-----
Hash: SHA1
Format: 1.7
Date: Sat, 8 Mar 2003 21:58:55 -0500
Source: zope-btreefolder2
Binary: zope-btreefolder2
Architecture: source all
Version: 0.5.0-2
Distribution: unstable
Urgency: low
Maintainer: David Coe <[EMAIL PROTECTED]>
Changed-By: David Coe <[EMAIL PROTECTED]>
Description:
zope-btreefolder2 - Zope folder that can contain many more objects efficiently
Closes: 177767
Changes:
zope-btreefolder2 (0.5.0-2) unstable; urgency=low
.
* changed Maintainer; Thanks to Nestor Diaz for packaging this.
* minor changes in the debian/control and debian/rules for
standards version 3.5.8.
* Closes: #177767 RFP: BTreeFolder2, an enhanced BTree folder for Zope
Files:
cf0faf1fc3425c558231d234fdd4c77d 597 web optional zope-btreefolder2_0.5.0-2.dsc
f301851803326d774d438b35aeb2322d 9798 web optional
zope-btreefolder2_0.5.0.orig.tar.gz
59a62ce2878a2d464d3802ca563dc227 5159 web optional
zope-btreefolder2_0.5.0-2.diff.gz
9175ada95ac960bb2d303252e617832c 15630 web optional
zope-btreefolder2_0.5.0-2_all.deb
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