March 2000 - Zope - Zope lists

InError
by Suneel Iyer 08 Mar '00

08 Mar '00

I am getting a strange error when I try to access the Properties tab of one of my objects called "News": ErrorType: InError ErrorValue: Strings are not allowed as input to the in tag. The traceback is as follows: Traceback (innermost last): File /usr/local/zope/Zope-2.1.2-src/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/zope/Zope-2.1.2-src/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/zope/Zope-2.1.2-src/lib/python/Zope/__init__.py, line 202, in zpublisher_exception_hook (Object: ElementWithAttributes) File /usr/local/zope/Zope-2.1.2-src/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/zope/Zope-2.1.2-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_propertiesForm) File /usr/local/zope/Zope-2.1.2-src/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: manage_propertiesForm) File /usr/local/zope/Zope-2.1.2-src/lib/python/App/special_dtml.py, line 120, in __call__ (Object: manage_propertiesForm) (Info: /usr/local/zope/Zope-2.1.2-src/lib/python/OFS/properties.dtml) File /usr/local/zope/Zope-2.1.2-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: manage_propertiesForm) File /usr/local/zope/Zope-2.1.2-src/lib/python/DocumentTemplate/DT_In.py, line 691, in renderwob (Object: propertyMap) File /usr/local/zope/Zope-2.1.2-src/lib/python/DocumentTemplate/DT_In.py, line 641, in renderwob (Object: getProperty(id)) InError: (see above) What does an error in the input to an "in" tag have to do with accessing the properties tab? I could be wrong, but I suspect that this has something to do with an assignment I made to a lines property that belongs to the "News" object. Something to the effect of a string being assigned to a lines property? (I make this assumption because I have had this error come up before with lines properties. In this previous case, I just flushed out the contents of the lines property in question using "manage_changeProperties". This fixed the error, although even then I never understood what the error in input to an "in" tag had to do with the lines property value being erroneous.) As I no longer need this property, I would gladly eliminate it. However, Zope won't even let me in to the Properties tab. It just displays the "InError" when I attempt to go to Properties of the News object. I can't really remember the exact wording of the lines property id so I can't delete it via "manage_delProperties" or flush out the contents of the property using "manage_changeProperties". Any insights as to what is going on and how to resolve this situation? Please excuse the verbosity of this posting. -- Suneel Iyer Email : suneeli(a)pacsg.css.mot.com Software Engineer Phone : (847) 523-7259 Advanced Technology Software Operations Fax : (847) 523-3867 Motorola Cellular Subscriber Sector Pager : 1-800-759-8352, pin 1273286 600 North U.S. Hwy 45, MS AN363 or email 1273286(a)skytel.com Libertyville, IL 60048-1286

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RE: [Zope] creator/owner attribute of an object? Mime-type of a f ile object?
by Mike Fletcher 08 Mar '00

08 Mar '00

I know, bad form responding to one's-own post, but I did figure it out and thought other newbies might find it useful... The first (trivial) problem was that I had a typo (dtml-call instead of dtml-var) which prevented the content-type from displaying. "type" "<dtml-var "getContentType()">" The creator/owner attribute can be got at by going through the get_local_roles method then searching for a value that has "Owner" in it, and copying the corresponding key. I'm sure my dtml is atrocious, but hey, I just learned it this afternoon :) . "owner" "<dtml-in expr="get_local_roles()"><dtml-let temp=sequence-item><dtml-if expr="temp and 'Owner' in temp"><dtml-var sequence-key></dtml-if></dtml-let></dtml-in>" Enjoy all, Mike

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Zope Weekly News
by Mike Pelletier 08 Mar '00

08 Mar '00

G'day, Zope Weekly News is a digest of some of the useful and interesting events which have occurred on the various Zope mailing lists and the Zope.org site. It is published each Wednesday evening. Any opinions contained in the Zope Weekly News are those of the chronicler exclusively. Announcements * A Documentation Survey has been posted. This survey will help Digital Creations decide where to focus our efforts by allowing you to tell us what you think about Zope documentation. http://www.zope.org/Members/Amos/Documentation/DocSurvey * "efm" has made a set of RPM distributions of Zope 2.1.4. ftp://www.tummy.com/pub/tummy/RPMS/ * Maik R�der has posted an announcement regarding the Zope Documentation Project (ZDP). Among other things, the ZDP has a new site. It's a fantastic resource, and definitely worth checking out. http://www.zope.org/Members/roeder/zdp New Products * Software Product: NFG Navigation Product, submitted by "gyst" Another product which provides navigation widgets such as trees and maps. http://www.zope.org/Members/gyst/NFGnav * Software Product: ZopeEDIT, submitted by "jimbag" This product allows you to edit DTML object from your Zope database in your favorite text editor. Maybe. Written in Python, so it just might work on your machine. This is _not_ a Zope add-on, it runs on it's own. http://www.zope.org/Members/jimbag/ZopeEDIT Updates * Software Product: mod_pcgi2, submitted by "phd" The update to 1.0.2 adds new documentation. This is module allows Apache to communicate with long-running PCGI servers, such as Zope. http://www.zope.org/Members/phd/mod_pcgi2 * Software Product: load_site.py with additional features, submitted by "Itamar" This is an enhancement to the load_site.py utility that comes with Zope. It can be used to fill a Zope database with content from a filesystem. This release, version 1.2, fixes all known bugs, has new features from the newest version of the original load_site.py, and runs in 'standalone' mode, loading into a remote Zope server. http://www.zope.org/Members/itamar/load_site/load_site1.2 * Software Product: FSSession, submitted by "gaaros" FSSession allows you to store persistent, per-visitor information on your filesystem. This update, to 0.3.0, fixes a number of bugs and properly supports Zope transactions. http://www.zope.org/Members/gaaros/FSSession * Software Product: KM|Net News, submitted by Kevin Dangoor KM|New News is a weblog (news site) product, not unlike (but not identical to) Squishdot. This update is version 1.1. http://lists.zope.org/pipermail/zope-announce/2000-March/000122.html http://www.zope.org/Members/tazzzzz/kmnn Zope.org items * How-To: Managing http/https URL Links, submitted by "rbickers" This How-To describes a clever method to generate links to objects which require different protocols (http or https). This allows you to use encryption only where needed, without using exclusively absolute links. http://www.zope.org/Members/rbickers/http_https_ulinks * How-To: How to view all inherited and acquired attributes and methods of an object, submitted by "dmost" This How-To is essentially an educational (or debugging) tool. Often it's difficult to figure out what methods an object has, or where those methods are coming from. This How-To provides an external method which lays it all out for you. http://www.zope.org/Members/dmost/ViewSelf * How-To: User Defined Roles and Proxies, submitted by "lvogel" "This HOWTO is to give a brief explanation of what a user defined role is, why you would want to set one up, and how to go about creating one. I also briefly touch setting up a proxy on Zope objects." http://www.zope.org/Members/lvogel/proxy * How-To: Change TinyTable values using DTML, submitted by "cguardia" "The TinyTable product is a good tool if you need simple table lookup functionality in your Zope apps. However, it's usefulness is limited by the fact that it doesn't support writing single values to the tables you create." * How-To: RESPONSE.write with ZServer 2.1.4, submitted by "htrd" "Streaming output does not work in Zope 2.1.4, when using ZServer to serve HTTP. This is fixed with the following two files..." http://www.zope.org/Members/htrd/RESPONSE.write/howto -- Mike Pelletier.

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RE: [Zope] ZODB packing problem
by George Runyan 08 Mar '00

08 Mar '00

sorry.. i'm running Zope version: Zope 2.1.4 (source release, python 1.5.2, linux2) Python version: 1.5.2 (#1, Sep 17 1999, 20:15:36) [GCC egcs-2.91.66 19990314/Linux (egcs- System Platform: linux-i386 Process ID: 12776 (1026) Running for: 47 min 2 sec -----Original Message----- From: Michel Pelletier [mailto:michel@digicool.com] Sent: Tuesday, March 07, 2000 4:56 PM To: George Runyan Cc: zope(a)zope.org Subject: Re: [Zope] ZODB packing problem What version of Zope is this? A recent bug fix has been checked into the pack function and my line numbers don't corespond with yours. I need to know what version of Zope you are using so that I can get the right version of this file. George Runyan wrote: > my ZODB doesnt pack, it remains 50.6M and after this error its still usable > (thank god). Packing does not modify your existing database file until it completely succeeds. During the pack, packed data is written to a temporary file and your main file is just read from. > now, is there any documentation on how to fix this? when I > search for 'ZODB' I get a useless 341 items returned. 'ZODB > troubleshooting' I get 355 items. FYI, you are searching for the union of two search terms, 'ZODB' and 'troubleshooting' which is why you got more for the second query than for the first. To explicitly get an intersection, say 'ZODB AND troubleshooting'. That bring you back a much smaller number (0). -Michel

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[ANN] FSSession-0-3-0
by Pavlos Christoforou 08 Mar '00

08 Mar '00

Hello Zopistas - FSSession 0.3.0 is available at: http://www.zope.org/Members/gaaros/FSSession FSSession 0.3.0 corrects a few reported bugs and has now working support for Zope Transactions (thanks to Hung Jung Lu for valuable discussions). Users of FSSession should upgrade to the newer version. Feedback especially regarding speed will be appreciated. Pavlos

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Zope & Vignette was Re: [Zope] Zope needs this (and Dynamo has it)
by Kevin Butler 08 Mar '00

08 Mar '00

Is this comparison available? Or going to be available? kb >>> From: Patrick Phalen <zope(a)teleo.net>: Yesterday, I was asked, by a client, to put together a side-by-side comparison of Zope and Vignette for presentation to their IT managers. I did a lot of searching on the Web, but found only the one article from this list last October, which was written by someone with no experience with either of the two! Frequently, people have asked for this sort of data on this list, but I've never seen a coherent answer. It's a FAQ. Digital Creations might be able to help here, since they have direct experience with clients who have started with Vignette and switched to Zope. It would probably be "impolitic" for DC to author a public article taking Vignette to task, but certainly they could help an independent author with facts. If that article could then be published in DevShed or Web Development, or another visible place, it would give us all something to point to. Search engines would index it. The word would spread. Vignette is often characterized as the "industrial strength" CMS, so it would seem a good target for a comparison, especially due to its high cost.

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Puzzling DTML method results
by James W. Howe 08 Mar '00

08 Mar '00

I'm encoutering a puzzling result with some DTMLMethods that I've written. I have some code which is used to display a list of information derived from a catalog. The information presented varies, based on which "category" of information the user desires. The DTMLMethod which generates most of this information looks like this: <dtml-in "InternetLinkCatalog(meta_type='Internet Link Info', categories=_['categoryName'])" sort=name> <dtml-with "InternetLinkCatalog.getobject(data_record_id_)"> < ... display object stuff here ... > </dtml-with> </dtml-in> For testing purposes, I created another DTMLMethod in the same folder named 'categoryName' and initially all it contained was one line: Accounting When I displayed the contents of my folder (which utilizes the list generation method), I received a list of all objects which belonged to the category of Accounting. I'm now trying to extend my code to use an actual category name specified by a user (or from a url clicked on by the user). I changed my 'categoryName' code to look like this: <dtml-with REQUEST only> <dtml-if category> <dtml-var category> <dtml-else> Accounting </dtml-if> </dtml-with> If I view this method, the result is 'Accounting', which is just what I would expect. However, when I attempt to view my generated list in the same manner as before, I get no results. I'm confused. When the categoryName simply has the value 'Accounting' in it, I see results. If I change the method to include some processing (but still answer the same thing), I get no results. I'm sure that I'm just doing something stupid a, but it's getting late in the day and I'm not seeing what the problem might be. Can someone help explain why I'm getting two different results for what should be the same? Thanks. James W. Howe mailto:jwh@allencreek.com Allen Creek Software, Inc. pgpkey: http://ic.net/~jwh/pgpkey.html Ann Arbor, MI 48103

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Zope Member Login
by Shaw, Mark 08 Mar '00

08 Mar '00

Hello, I've been trying to decipher the Zope member log in screens. It appears pretty straight forward. There is the login.html screen which is basically just a form for entering Name and Password and then passing this information to logged_in.html. I'll ignore the cookie for now. logged_in.html then checks  and reports success or failure. However, as usual, there's got to be something I'm missing. If I simply build those two pages, the AUTHENTICATED_USER.getUserName() check on the logged_in.html page always return 'Anonymous User'. When and how do I get the form to actually 'chat' with Zope and make me a valid authenticated user? Thanks in advance for any help provided. -mark PS. For those who are still having a problem with DCOracle and Oracle8i, that's working great for me now. If I can help, feel free to send me email. I'm running all this on RH Linux 6.1

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Re: [Zope] Zope needs this (and Dynamo has it)
by Jack Ungerleider 08 Mar '00

08 Mar '00

<Previous Comments snipped for bandwidth conservation> Alexander Staubo wrote: > The Open Source guys just wants "software that doesn't suck". </lurk> I've been watching this debate since the begining and felt I'd put in one observation on the above quotation. I actually think one of the comments in this vain (maybe by ESR) was the goal for "software that sucks less" than the whats out there. I don't think you can create software that doesn't suck in some person opinion. That said what I've learned is if I have to have software that isn't quite where I want it to be I prefer the ability to adapt it myself. One argument against open-source software projects is that they often come from amorphous groups on the Internet. (Zope is an exception.) As a result there is no one to "hang if it fails". What people don't factor into the equation is if I have to pay $X for licenses from a vendor (with or without a support contract) how many hours of contractor time will that buy me to install, customize, administor, and maintain a freely available open-source product? For those fighting this battle inside corporations I recommend http://www.cluetrain.com as a place to visit. More grist for the mill. <lurk> Jack Ungerleider The Ungerleider Group jack(a)jacku.com

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creator/owner attribute of an object? Mime-type of a file object?
by Mike Fletcher 08 Mar '00

08 Mar '00

I'm attempting to create a directory list (well, the final version will be more complex, but this is where I'm stuck). I'm looking for some way to get the creator ID for all of the (file) objects in a folder. I'm also interested in getting the mimetype, but this is less critical. Here's what I have so far: <dtml-in "PARENTS[0].objectValues( ['File'])"> url <dtml-var URL1>/<dtml-var id> title <dtml-var title> id <dtml-var id> size <dtml-var size> ddate <dtml-var bobobase_modification_time fmt="%m/%d/%Y"> owner mimetype <dtml-call "getContentType()"> </dtml-in> <dtml-call "RESPONSE.setHeader('Content-Type', 'text/plain')"> Unfortunately, getContentType always seems to return null strings, and I cannot find any attribute which shows the owner/creator attribute of the object. If the creator is not available, the last editor would be fine. Pointers appreciated, Mike __________________________________ Mike C. Fletcher Designer, VR Plumber http://members.home.com/mcfletch

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