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RE: [Zope] Can't build resource file for PCGI on Zope 2.7b1
by Tiller, Michael (M.M.) 28 Aug '03

28 Aug '03

> From: Chris McDonough [mailto:chrism@zope.com] > Subject: Re: [Zope] Can't build resource file for PCGI on Zope 2.7b1 > > > On Mon, 2003-08-11 at 22:33, Jens Vagelpohl wrote: > > > > > > Is PCGI being deprecated from Zope? > > > > It is not receiving much attention anymore, to put it like > that. With > > mechanisms like mod_rewrite and mod_proxy PCGI is almost never an > > appropriate solution anymore. > > Yes, PCGI is being deprecated. Past 2.7 it will no longer > available in > the source distribution (nor in any binary distribution I'm aware of). Hmmm...then I have a question. I've often seen statements like yours above that "[PCGI] is almost never an appropriate solution", but I'm still puzzled by something. For our needs, the fact that request to Zope can be redirected through a named pipe with PCGI (at least that is my understanding, we are in the process of setting this up right now) is very useful because we are looking at using Zope internally on our corporate intranet and the server will *NOT* be behind a firewall. By using a named pipe, it is much easier for us to direct access to the Zope server than if it were hanging off a port. Our current plan is to have iPlanent (not under my control) be the "front end" web server. The iPlanet server will be responsible for authentication. Then, the requests will be redirected to Zope using exUserFolder. Currently, the plan is to do this redirection through PCGI using named pipe. If PCGI is gone, how can we accomplish the same thing without opening up a port? I don't doubt that "[PCGI] is almost never an appropriate solution", but I cannot seem to figure out what is an appropriate solution in our case. Thanks for any help. > - C -- Mike

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Pound web site & mail
by Robert Segall 28 Aug '03

28 Aug '03

During the period August 19th - 27th 2003 we have experienced severe problems with our ISP. The Apsis site may not have been accessible during this time and mail messages sent to us may have vanished or bounced. We apologize for these problems and believe them to be resolved at the present time (we have also switched Internet providers). If you tried to contact us during this period and you received no answer it may well be the case that your message was simply lost - we have certainly not ignored it on purpose; please send it again and we'll do our best to answer it at the earliest. -- Robert Segall Apsis GmbH Postfach, Uetikon am See, CH-8707 Tel: +41-1-920 4904

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Zope 2.7.0b2 Released
by Chris McDonough 28 Aug '03

28 Aug '03

Zope 2.7.0 represents a concentration on software configuration and installation improvement over older versions. It requires Python 2.2.3. Zope 2.7.0b2 is the latest release in the 2.7 development series. You may download Zope 2.7.0b2 from Zope.org at http://zope.org/Products/Zope/2.7.0b2/2.7.0b2 Users should note that Python 2.2.3 is now the required platform. Experimental RPM release An experimental release of Zope RPMS accompany the 2.7.0b2 release. This RPM has been tested under Red Hat Linux 7.3, 8.0, and 9.0. Be aware that the Zope RPM requires the Python 2.2.3 RPM which may or may not be available for your particular platform. See http://www.python.org/2.2.3/rpms.html for more information. A Zope source RPM is also provided for those who choose (or need) to create their own RPM binaries. Particular features of interest in Zope 2.7.0: - DBTab integration (mounted databases for Zope). - New logging module support. - ./configure; make; make install installation from source - configuration-file-driven configuration - integration of ReStructuredText - OrderedFolder support - Many bugxfixes For more information on what is new in this release, see the CHANGES.txt and HISTORY.txt files for the release: - http://www.zope.org/Products/Zope/2.7.0b2/CHANGES.txt - http://www.zope.org/Products/Zope/2.7.0b2/HISTORY.txt For more information on the available Zope releases, guidance for selecting the right distribution and installation instructions, please see: http://www.zope.org/Documentation/Misc/InstallingZope.html

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objects not visible if owner is deletet?
by Elena Schulz 28 Aug '03

28 Aug '03

Hi, ff User_C creates myZPT, i.e. gets the role Owner and I delete User_C after a while, myZPT is not visible any more, even if users (i.e. (User_A, User_B) of other roles (i.e. Role_A and Role_B ) have view-permission. Is that wanted? Do I have to change the ownership of all objects created by User_C or is there an other way to overcome this problem? -- thanks for your hints, Elena My folder structure: root | - content(SecuritySettings: View: Aquired unchecked, only Role_A and Role_B checked) | - Folder1(myZPT, SecuritySettings: View: Aquired checked) | - Folder2 | - acl_users(User_A, User_B, User_C deleted (Owner of myZPT))

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Zope on HP-UX 11.11, startup error
by Roger Beavans 28 Aug '03

28 Aug '03

I have the following problem. HP-UX 11.11, python 2.1.3. I'm trying to start zope with the ./start -u zope, command. the user "zope" has rights to the var directory. 2003-08-28T16:10:22 PANIC(300) z2 Startup exception Traceback (innermost last): File /usr2/usr/local/zope/z2.py, line 748, in ? File /usr2/usr/local/zope/ZServer/PCGIServer.py, line 255, in __init__ TypeError: open() argument 1 must be string, not None any help appreciated, thanks, roger(a)beavans.org

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Re: [Zope] Global Variable
by Mitch Pirtle 28 Aug '03

28 Aug '03

On Wed, 2003-08-27 at 16:00, rpenatez(a)lattice.com.co wrote: > How can I assign a value to one of this variables??? How can I recover the > variables values??? No problemo! Follow these steps: 1) create folder called "test" 2) select "test" folder 3) click on "Properties" tab 4) at the bottom of the Properties screen, create a variable: Name: tequila Value: mezcal 5) create a document in the test folder called "test" 6) the content of that document should look like this: <dtml-var standard_html_header> <h2><dtml-var title_or_id></h2> <p> This is the <dtml-var id> Document. </p> <p>My favorite tequila is <dtml-var tequila>.</p> <dtml-var standard_html_footer> See how that works? Now, here is something important to remember - this variable is available to everything in that folder. If something is ABOVE that folder, then Zope cannot find that variable for you (it is not in the path). Let me know if you still have problems, ok? -- Mitch

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keeping a python object alive across pageviews
by Kirk Lowery 28 Aug '03

28 Aug '03

We are integrating a postgresql linguistic database (text+metadata) with Zope. The database uses a search engine (http://emdros.org) which has a data model optimized to this task. emdros is written in C++ and we used SWIG (http://www.swig.org) to create python bindings. We're using page templates and external methods that call the emdros library to (1) establish a database connection, (2) submit the query to postgresql, (3) display the results by calling a response template. And we have run into an implementation question: Whenever an external method is used to call the search engine, the search engine then makes a database connection. Zope database adapters cannot be used here, since it is emdros -- not Zope -- that is managing the database. When that external method completes, the connection is lost. The more frequently that method is used, the greater the performance hit because of the overhead of restablishing the connection. Zope database adapters could solve this problem, but that would mean reimplementing the entire search engine in python as a Zope product, which doesn't seem to be a practical solution. When the external method is called, it creates a python object which houses the C++ connection object. The problem is that this Python object -- and hence the connection -- dies when the external method returns. So the question becomes: How do we keep a python object alive within the Zope process across pageviews? How do we associate such a python object with a particular user session? Our strategy at this time is to call an external method which does not return until it receives some sort of signal; rather it "busy-waits," thereby keeping the emdros connection object alive. Our question: Do we understand the issues correctly? Are there any other alternatives for keeping that external Python object alive that we should consider? All comments or suggestions are appreciated. TIA! Kirk Lowery <klowery(a)wts.edu> Ulrik Petersen <http://emdros.org/contact.html> -- Theorie ist, wenn man alles weiss und nichts klappt. Praxis ist, wenn alles klappt und keiner weiss warum. Bei uns sind Theorie und Praxis vereint: nichts klappt und keiner weiss warum!

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manage_clone problem, python script solution required please
by Nicolas LAURANCE 28 Aug '03

28 Aug '03

Hi zopers, Here is part of my script container.dest_folder.manage_clone(Item, Item.id) container.temp.manage_delObjects(Item.id) It works perfectly well for me when I'm logged in as manager, but my users get an error (prompted for password again) In the zope log I get : Module OFS.CopySupport, line 268, in manage_clone Module OFS.CopySupport, line 349, in _verifyObjectPaste Unauthorized: <zExceptions.unauthorized.Unauthorized instance at 0x8e83bec> It seems (thank you Dieter) that this is a know bug In searching the archives I found a solution with external method. Unfortunately, my configuration doesn't allow me to use those easily. I must find a workaround in python_script only. Of course I have set the proxy role of the script to 'Manager' I even tried container.dest_folder.manage_pasteObjects(container.temp.manage_copyObjects( Item.id)) container.temp.manage_delObjects(Candidat.id) In the zope log I get : Module OFS.CopySupport, line 146, in manage_pasteObjects Module OFS.CopySupport, line 349, in _verifyObjectPaste Unauthorized: <zExceptions.unauthorized.Unauthorized instance at 0x946862c>

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Zope 2.7.0b1 Released
by Chris McDonough 28 Aug '03

28 Aug '03

Zope 2.7.0 represents a concentration on software configuration and installation improvement over older versions. It requires Python 2.2.3. You may download Zope 2.7.0b1 from Zope.org: http://www.zope.org/Products/Zope/2.7.0b1/ Users should note that Python 2.2.3 is now the required platform. No binaries for platforms other than win32 will be offered for this Zope release. Particular features of interest in Zope 2.7.0: - DBTab integration (mounted databases for Zope). - New logging module support. - ./configure; make; make install installation from source - configuration-file-driven configuration - integration of ReStructuredText - OrderedFolder support - Many bugxfixes For more information on what is new in this release, see the CHANGES.txt and HISTORY.txt files for the release: http://www.zope.org/Products/Zope/2.7.0b1/CHANGES.txt http://www.zope.org/Products/Zope/2.7.0b1/HISTORY.txt For more information on the available Zope releases, guidance for selecting the right distribution and installation instructions, please see: http://www.zope.org/Documentation/Misc/InstallingZope.html Have fun! - C

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dtml-calendar: cannot update existing entry
by Daniel Huang 28 Aug '03

28 Aug '03

I'm following Jon Udell's tutorial (http://zope.org/Members/judell/CalendarTagExample) verbatim and have successfully created entries in the calendar (version 1.0.15) . However when I click on an existing entry and try to change the content, I get the following error: Error Type: Bad Request Error Value: Invalid or duplicate property id. Its happening in the editCalendarProperty code: /////////////// REQUEST = context.REQUEST if ( context.hasProperty(REQUEST['prop']) ): context.manage_changeProperties({ REQUEST['prop'] : REQUEST['propval'] }) else: context.manage_addProperty(REQUEST['prop'], REQUEST['propval'], 'string') return REQUEST.RESPONSE.redirect(REQUEST['BASE4']) //////////////// I think "context.hasProperty" always returns false and so it tries to add a duplicate property. But I dont see why. Has anyone run into the same issue?

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