[Zope] TransientObjectContainer.keys()
Chris McDonough
chrism@zope.com
14 Mar 2003 16:44:41 -0500
Why not use the external method to just obtain the result you want, eg:
def toc_keys(self):
return self.temp_folder.session_data.keys()
On Fri, 2003-03-14 at 15:23, Shannon -jj Behrens wrote:
> Your advice is very helpful, although the documentation is quite complex.
> The documentation inspired me to just create an external method that accepts
> a TransientObjectContainer and returns the result of its keys method. How
> badly does this screw me? I assume any keys method of any object is no longer
> safe.
>
> *sigh*
> -jj
>
> On Fri, Mar 14, 2003 at 01:53:51PM -0500, Chris McDonough wrote:
> > That's right. The method has no security assertions so it's 'private'
> > to "through the web" code like Python Scripts and ZPT. I'd suggest
> > reading the Zope Developer's Guide Security chapter to get an
> > understanding of how to change this.
> >
> > On Fri, 2003-03-14 at 13:21, Shannon -jj Behrens wrote:
> > > 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.
> > >
> > > _______________________________________________
> > > Zope maillist - Zope@zope.org
> > > http://mail.zope.org/mailman/listinfo/zope
> > > ** No cross posts or HTML encoding! **
> > > (Related lists -
> > > http://mail.zope.org/mailman/listinfo/zope-announce
> > > http://mail.zope.org/mailman/listinfo/zope-dev )
> >
>
> --
> Hacker is to software engineer as
> Climbing Mt. Everest is to building a Denny's there.