On Wednesday 23 December 2009 20:26:13 Jim Fulton wrote:
> Undo is broken in a number of ways. Does anyone care? Does anyone use
> undo?
First, a disclaimer: what I state below is from Zope 2.8-ish experiences, with
its original ZODB version. I hope my mail is still on topic nevertheless.
In m
On 24/12/09 03:09, Martin Aspeli wrote:
> Hanno Schlichting wrote:
>
> Unfortunately, I think the people most likely to have used it in a pinch
> are less likely to be reading this list.
>
> If the current API is broken, we should fix it. If that means fixing
> some of the UI in Zope to use a new A
I agree that it's handy, and that people would be upset if it
disappeared. But I also agree that people trust it far more than they
should, and that it's really only dependable for developers to roll
back transactions -- however, for that, I think it's invaluable (i.e.
very valuable).
So I think *
I'd like to add my vote to retaining Undo, I think it's a crucial
feature. Changing the API is not a problem, and changing the UI could
probably be an improvement. I use it all the time, especially when
fiddling with customer datatabases for upgrades or bugfixes.
--
Lennart Regebro: http://regebr
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Martin Aspeli wrote:
> Hanno Schlichting wrote:
>
>>> What is zc.beforestorage?
>> Look at its PyPi page
>> http://pypi.python.org/pypi/zc.beforestorage
>
> Thanks for the pointer!
There is also dm.historical when you need to deal with earlier versions
Hanno Schlichting wrote:
>> What is zc.beforestorage?
>
> Look at its PyPi page http://pypi.python.org/pypi/zc.beforestorage
Thanks for the pointer!
> In practice it hardly ever works. Relying on it as a substitution for
> backup or tested restore procedures is dangerous.
I know that a procedur
On Thu, Dec 24, 2009 at 1:34 AM, Martin Aspeli wrote:
> Hanno Schlichting wrote:
>> Throwing away all changes done in the meantime is usually
>> not practical.
>
> ... although sometimes it is preferable to a full backup restore or
> living with whatever it is you want to restore (usually a delete
Hanno Schlichting wrote:
> On Wed, Dec 23, 2009 at 9:26 PM, Jim Fulton wrote:
>> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
>
> Speaking from the Zope2/Plone crowd: I'm using it during development
> with a local file storage at times.
>
> In a real ZEO production
Jim Fulton wrote:
> I'm looking at undo today because it is complicating ZEO transaction
> management.
>
> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
Plone users tend to use Undo quite a lot. If you accidentally delete
something, say, it's pretty much your only
Jim Fulton wrote:
> So, I repeat: is anyone actually using undo these days?
>
I haven't used undo (not the APIs nor via any Zope UI) in years.
- C
___
For more information about ZODB, see the ZODB Wiki:
http://www.zope.org/Wikis/ZODB/
ZODB-Dev mailin
On Dec 23, 2009, at 2:26 PM, Jim Fulton wrote:
> On Wed, Dec 23, 2009 at 4:20 PM, Jeff Shell wrote:
>>
>> Are you asking at the ZODB level, or at a higher level, such as Zope?
>
> I'm asking if applications are using undo these days.
>
>> We use it in our Zope 3 based CMS. We usually only expos
On Wed, Dec 23, 2009 at 4:20 PM, Hanno Schlichting wrote:
> On Wed, Dec 23, 2009 at 9:26 PM, Jim Fulton wrote:
>> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
>
> Speaking from the Zope2/Plone crowd: I'm using it during development
> with a local file storage at ti
On Wed, Dec 23, 2009 at 4:20 PM, Jeff Shell wrote:
> On Dec 23, 2009, at 1:26 PM, Jim Fulton wrote:
>
>> I'm looking at undo today because it is complicating ZEO transaction
>> management.
>>
>> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
>
> Are you asking at the
On Dec 23, 2009, at 1:26 PM, Jim Fulton wrote:
> I'm looking at undo today because it is complicating ZEO transaction
> management.
>
> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
Are you asking at the ZODB level, or at a higher level, such as Zope?
We use it i
On Wed, Dec 23, 2009 at 9:26 PM, Jim Fulton wrote:
> Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
Speaking from the Zope2/Plone crowd: I'm using it during development
with a local file storage at times.
In a real ZEO production setup, undo in Plone most of the tim
Zope 2.
-EAD
Erik A. Dahl
Co-Founder and CTO, Zenoss Inc.
phone: 443-837-2597
http://www.zenoss.com
On Dec 23, 2009, at 3:40 PM, Jim Fulton wrote:
> On Wed, Dec 23, 2009 at 3:38 PM, Erik Dahl wrote:
>> We use undo from time to time in a zeo setup. When it works it can
>> be a
>> life sa
On Wed, Dec 23, 2009 at 3:38 PM, Erik Dahl wrote:
> We use undo from time to time in a zeo setup. When it works it can be a
> life saver! :) If it goes away I guess it wouldn't be the end of the world
> though.
Do you use it via Zope 2 or do you call ZODB undo apis directly?
Jim
--
Jim Fulto
We use undo from time to time in a zeo setup. When it works it can be
a life saver! :) If it goes away I guess it wouldn't be the end of
the world though.
-EAD
Erik A. Dahl
Co-Founder and CTO, Zenoss Inc.
phone: 443-837-2597
http://www.zenoss.com
On Dec 23, 2009, at 3:26 PM, Jim Fulton
I'm looking at undo today because it is complicating ZEO transaction management.
Undo is broken in a number of ways. Does anyone care? Does anyone use undo?
Undo is broken in the following ways:
- The TransactionalUndo resource manager invalidates objects too early.
- If undo is mixed with sto
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