- Zope-Dev - Zope lists

Schizophrenic ObjectManager?
by Ian Beatty 05 Mar '04

05 Mar '04

Greetings. I'd like to create a type in a Python-based product that's kind of like two folders fused together. What I mean by that is I've got a folderish object type -- let's call it 'F' -- that inherits from ObjectManager. I've set it up so that it can contain objects of type 'A' and nothing else, by using the all_meta_types property. So far so good. Now, I want to have it also contain objects of type 'B', but displayed and managed through a separate tab in the ZMI. If I click on the "Contents" tab of an instance of F, I get the list of contained A-type objects, with cut, copy, paste, delete, etc. If I click on another tab named, say, "OtherStuff", I want to see exactly the same kind of contents-list management page, but for contained B-type objects. I'm thinking that I might try having F contain an instance of ObjectManager as a property, and delegate all B-managing functionality to that. Management of A would be handled through F's inherited ObjectManager behavior. What concerns me is that the "encapsulated" second ObjectManager wouldn't have a container in the usual way, and that could seriously mess up acquisition. Another possibility is to maintain only one collection, but to create the illusion of two separate collections by having two copies of the contents ('manage_main') page, each modified to display only one kind of child. Any thoughts, oh masters of Zope Zen? Cheers, ..Ian -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- Dr. Ian Beatty beatty(a)physics.umass.edu Physics Education Research Group voice: 413.545.9483 Department of Physics fax: 413.545.4884 Univ. of Massachusetts AIM: (available upon request) Amherst, MA 01003-4525 USA http://umperg.physics.umass.edu/ -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- --

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RE: [Zope-dev] TCPWatch or other such tool
by Bjorn Stabell 05 Mar '04

05 Mar '04

Shane wrote: [...] > Other people have reported this, but I can't reproduce it. I've been > using tcpwatch on Python versions 2.1 through 2.3 without a > hiccup. Are you using Linux? If so, what distribution? > > As a workaround, you can use "-s" to dump to stdout. Thanks. I was running it on Debian, so it's most likely a python-tk problem as also reported by Christian Theune. When I ran it under Windows it worked fine. I'll report it as a Debian bug. Bye, -- Bjorn

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Folderish object's __call__ fails
by Dirksen 04 Mar '04

04 Mar '04

Hi, I'm developing a product, which extends ObjectManager. Meanwhile, I'd like it to behave like a script object, similar to DTML method. So I define a __call__ method. But it never gets run if called from the browser. If I change the base class to SimpleItem, it works. How can I make __call__ works for folderish object? cheers Dirksen __________________________________ Do you Yahoo!? Yahoo! Search - Find what you�re looking for faster http://search.yahoo.com

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Custom class: cut,copy,rename?
by Ian Beatty 04 Mar '04

04 Mar '04

Greetings. I've created a package in Python with some basic classes. They work in the ZMI, except for the fact that the ZMI paste and rename functionality fails with the message "The object xxx does not support this operation." I've dug into the source code for standard types ('OFS.Folder', 'OFS.SimpleItem', etc.) and discovered some tantalizing bits (such as 'manage_renameObject' in 'OFS.CopySupport'), but I can't figure out how to put it together to make my classes renameable and pasteable. I'm rather surprised that behavior doesn't come automatically when inheriting from the standard base classes. One of my folderish classes subclasses the following bases: OFS.ObjectManager.ObjectManager Products.ZCatalog.CatalogPathAwareness.CatalogAware OFS.PropertyManager.PropertyManager OFS.SimpleItem.SimpleItem Am I not inheriting from the proper set of base classes? Is there an easier way? According to the ZDG (2.4 edition, vs. my Zope 2.7), OFS.SimpleItem.Item (subclassed by OFS.SimpleItem.SimpleItem) is supposed to provide cut-and-paste functionality. So, how might I be breaking it? Bewildered, ..Ian -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- Dr. Ian Beatty beatty(a)physics.umass.edu Physics Education Research Group voice: 413.545.9483 Department of Physics fax: 413.545.4884 Univ. of Massachusetts AIM: (available upon request) Amherst, MA 01003-4525 USA http://umperg.physics.umass.edu/ -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- -- --- --

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DTML
by Fábio Bruno 04 Mar '04

04 Mar '04

Dear Sir or Madamme We are working with zope at school, it was proppoused to us to do an imobiliary site and we like to know who we can do a for cicle or repeat to search in our document whow many houses where added. Your's faithfully, Fábio & Bruno _________________________________________________________________ MSN Hotmail, o maior webmail do Brasil. http://www.hotmail.com

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TCPWatch or other such tool
by Bjorn Stabell 04 Mar '04

04 Mar '04

Has anyone gotten TCPWatch to work recently? Using Python2.1/2.2/2.3 I get: Unhandled exception in thread started by <function window_loop at 0x402877d4> Traceback (most recent call last): File "/zope/opt/bin/tcpwatch.py", line 656, in window_loop app.mainloop() File "/usr/lib/python2.3/lib-tk/Tkinter.py", line 965, in mainloop self.tk.mainloop(n) RuntimeError: Calling Tcl from different appartment Are there any other good, free TCPWatch-like tools that allow you to snoop on HTTP requests. Regards, -- Bjorn

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CMF dogbowl dog tired ???
by Alan Milligan 04 Mar '04

04 Mar '04

-----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 I see not much has been happening on cmf.zope.org for some time - the content is still to be merged with zope.org Even more worrying, the collector also shows no movement. I raised 2 one-line fixes (bugs 196, 197) on Oct 19 2003 - they are still pending along with 89 others. How about looking at this stuff - or giving us CVS access. Cheer, Alan -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.3.3 (GNU/Linux) Comment: Using GnuPG with Mozilla - http://enigmail.mozdev.org Comment: iD8DBQFARyo+CfroLk4EZpkRAlkWAKCJYhic9OnL/9gSKUA+48BF1dOe/gCcDbI6 Ni0me/OyQh5Ydy2Ao6J2JEA= =xK5V -----END PGP SIGNATURE-----

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server for new protocol?
by Nikolay Kim 04 Mar '04

04 Mar '04

is there any way create server for new protocol without changing ZServer module?

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Serving big files thru zope?
by Dario Lopez-Kästen 04 Mar '04

04 Mar '04

Hello, I need to serve big files from zope - PDF, movies, large PS-files, Students lab-results, etc. We recently moved from LocalFS to Dirstorage to manage ZEO-ability in a clustered enviromnet). Quite a while ago, I remember having read somewhere on the lists that there is a pacth/fix for Zope/ZServer that optimises the way zope serves large files. Is the current state of ZServer such that it is suboptimal for serving large files? if so, a) what is the problem with the current implementation? b) is there a fix available? if not b) then I am willing to start looking into it. I need this for my unis student web-site. Thanx, /dario -- -- ------------------------------------------------------------------- Dario Lopez-Kästen, IT Systems & Services Chalmers University of Tech.

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Re: [ZODB-Dev] Re: BTrees strangeness (was [Zope-dev] Zope 2.X BIG Session problems - blocker - our site dies - need help of experience Zope developer, please)
by Chris McDonough 04 Mar '04

04 Mar '04

On Wed, 2004-03-03 at 22:20, Casey Duncan wrote: > > > for key in list(self._data.keys(None, max_ts)): > > > assert(key <= max_ts) > > > STRICT and _assert(self._data.has_key(key)) > > > for v in self._data[key].values(): > > > to_notify.append(v) > > > del self._data[key] > > Maybe you could use items() and two loops instead; > > to_rm = [] > for key, val in self._data.items(None, max_ts): > for v in val.values(): > to_notify.append(v) > to_rm.append(key) > for key in to_rm: > try: > del self._data[key] > except Keyerror: > pass # Somebody else deleted it first > > I don't think that could raise a KeyError... Well, the real bit of magic there is the "try.. except KeyError: pass" stanza. Believe me, I'm tempted to stick that in, but this is the kind of voodoo that got me in to a lot of trouble in the older version of this code (there was reams upon reams of voodoo in the old code), so I'd really rather just figure out why the code is failing in the first place. I'd just rather not mask the problem until I understand the cause. That may never happen, of course, but a man can dream. - C

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