[Zope] TransientObjectContainer.keys()

Shannon -jj Behrens jj@nttmcl.com
Fri, 14 Mar 2003 10:21:41 -0800


On Wed, Mar 12, 2003 at 10:01:23PM -0600, Edward Muller wrote:
> Agreed. doesn't this work:
> keys = TransientObjectContainerInstance.keys()
> for key in keys:
> 	print key

No, unfortunately, it doesn't.  Despite the fact that I'm logged in as a 
manager, it asks me for my username and password.  See below.

> The above should print the TransientObjects in the
> TransientObjectContainerInstance....
> 
> Again ... I've never read the code ... but that's the way session
> works...

I think the problem is in Zope/lib/python/Products/Transcience.  Whereas 
the get method is declared as:

	security.declareProtected(ACCESS_TRANSIENTS_PERM, 'get')
	def get(self, k, default=_marker):

the keys method is declared as:

	def keys(self):

Notice that there is no security declaration.  I think that this combined with
the line:

	security.setDefaultAccess('deny')

is locking me out.

Of course, this is my first time looking at the Zope code, so I could be wrong.
In any case, it's not working. :(

Thanks,
-jj

> On Wed, 2003-03-12 at 20:42, Chris McDonough wrote:
> > Whether it's in the API or not, a TransientObjectContainer does have a
> > keys method.  I presume you can use this.
> > 
> > - C
> > 
> > 
> > On Wed, 2003-03-12 at 21:37, Shannon -jj Behrens wrote:
> > > On Fri, Mar 07, 2003 at 12:22:13AM -0600, Edward Muller wrote:
> > > > Isn't TransientObjectContainer a container for TransientObjects ?
> > > 
> > > Yes.
> > > 
> > > > You get the auto-delete from TransientObjectContainer. I assume (without
> > > > looking at the code) that the dict in TransientObjectContainer stores
> > > > some sort of references to TransientObjects ... which you then use ...
> > > 
> > > Yes.
> > > 
> > > > I could be very wrong ... since I'm not taking the time to read the
> > > > code.
> > > 
> > > All of your statements are correct.  However, I still know of no way to way to 
> > > get a complete list of TransientObject's from the TransientObjectContainer.
> > > (This should not be confused with getting a list of keys from *an individual*
> > > TransientObject).  Please set me straight if I'm wrong.
> > > 
> > > Thanks, 
> > > -jj
> > > 
> > > > On Thu, 2003-03-06 at 19:02, Shannon -jj Behrens wrote:
> > > > > Chris, 
> > > > > 
> > > > > Thank you for your reply!  I'm using 2.6.  According to the API docs, 
> > > > > TransientObject has a keys method, but TransientObjectContainer doesn't.
> > > > > Looking at TransienceInterfaces.py confirms that TransientObject implements
> > > > > DictionaryLike whereas TransientObjectContainer doesn't.  Am I confused?
> > > > > 
> > > > > Best Regards,
> > > > > -jj
> > > > > 
> > > > > On Thu, Mar 06, 2003 at 07:40:51PM -0500, Chris McDonough wrote:
> > > > > > TransientObjectContainer does have a keys method.  At least in Zope 2.6
> > > > > > and the Zope trunk it does...
> > > > > > 
> > > > > > On Thu, 2003-03-06 at 16:53, Shannon -jj Behrens wrote:
> > > > > > > Hi,
> > > > > > > 
> > > > > > > I'm using Zope as an application server for some weird, non-Web-related stuff.
> > > > > > > TransientObjectContainer really matches my needs for a particular problem
> > > > > > > (the dict-like interface and the auto-delete feature are quite useful), but 
> > > > > > > TransientObjectContainer has no keys() method.  I can see why this is the case
> > > > > > > considering sessions, but it's something that I absolutely need for my 
> > > > > > > application.  I assume my options are:
> > > > > > > 
> > > > > > > o Hack Zope and submit a patch.
> > > > > > > o Hack Zope and don't submit a patch, because it won't be accepted.
> > > > > > > o Figure out some (really inconvenient) way to store a list of keys in the 
> > > > > > >   TransientObjectContainer.
> > > > > > > o Don't use TransientObjectContainer, just use normal Zope objects.  Use a cron
> > > > > > >   job to implement auto-delete.
> > > > > > > 
> > > > > > > I welcome your advice.
> > > > > > > 
> > > > > > > Best Regards,
> > > > > > > -jj
> > > 
> > > -- 
> > > Hacker is to software engineer as 
> > > Climbing Mt. Everest is to building a Denny's there.
> -- 
> Edward Muller
> 
> Interlix - President
> 
> Web Hosting - PC Service & Support
> Custom Programming - Network Service & Support
> 
> Phone: 417-862-0573
>  Cell: 417-844-2435
>   Fax: 417-862-0572
> 
> http://www.interlix.com

-- 
Hacker is to software engineer as 
Climbing Mt. Everest is to building a Denny's there.