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Are products the right approach?
by Carsten Gehling 18 Sep '03

18 Sep '03

Since I'm new at Zope, I would value your opinions very much about my choices in this first project. My first Zope project is creating an intranet for a local TV company. They wish to store information about their equipment, spare parts, etc., and maintain logs about the equipment's current state (working, out of order, being maintained, etc.). (note: This is only a small part of their intranet, extracted for discussion purposes). Right now, I've made the following folder structure: ---------------------------------- /root ... intranet Technical Equipment SpareParts ---------------------------------- I have created two product classes called Equipment and SpareParts. As it might be obvious, objects of class Equipment should only be created in the folder Equipment, and likewise with SpareParts. Objects of both classes store information about the specific piece of equipment or spare part. I've also made a superclass called "Loggable", which they inherit to be able to create logs about the use and maintainance of said object. The logs, however, are stored in a relational database. I've done it this way, because I need to create reports later on for the equipment and spare parts based on the logs. So the "class hierarchy" is pretty much like: SimpleItem Loggable |------+-----| | Equipment and the same for SparePart At the moment, I'm not sure this is the right approach. My judgement may be clouded since I come from the relational-DB world. 1) Should Equipment and SparePart be classes or perhaps instead tables in my RDBMS? (ATM they are classes to facilitate the history/undo functionality in Zope) 2) Should I make it all as classes (including the Log)? 3) How do you make relations between objects in Zope? (For use in eg. reporting) 4) I'm going to make a scheduled "event handler" that sends out mail messages based on the latest log entries. This needs to be able to find an object in ZODB based on the log entry - how do I make this connection? I deliberately did not include any source code, since this is more a discussion of techniques and principles. If any of you wish to see some of my code before answering, please say so. I hope you can help me. TIA - Carsten

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Zope refuses to update file contents
by Mitch Pirtle 18 Sep '03

18 Sep '03

Hi list, I have someone here using the ZMI (direct, not proxied through apache) to update PDF files that are stored in the ZODB. The wierd part is this: 1) (from ZMI) select File 2) hit 'Edit' tab 3) 'Browse' to new file on local drive 4) 'Upload' When she is done, she hits the 'View' tab and sees the old document. So I deleted the file altogether from Zope, and created a new one in its place. It is still the old file. ?!?!?!?! There is no caching turned on AFAICT. The culprit is: Zope 2.6.1 (binary release, python 2.1, linux2-x86), python 2.1.3, linux2 2.1.3 (#1, Sep 19 2002, 13:15:46) [GCC egcs-2.91.66 19990314/Linux (egcs-1.1.2 release)] Any ideas, o amorphous mass of Zope knowledge? -- mitchy

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Re: [Zope] i18n: how to use it in zpt's without CMF&Plone? [Solved]
by Elena Schulz 18 Sep '03

18 Sep '03

Hi Bernd, my problem was that I had installed PlacelessTranslationService after TranslationService. This is a problem since only one service can be installed. After removing it everything works according to http://www.zope.org/Members/efge/TranslationService I think this should be noted somewhere in the docs. -- Elena

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How to decode string in zope
by Mamta Sharma 18 Sep '03

18 Sep '03

Hi Is there any method in python through which i can decode a string or a url regards Mamta

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Back button (off topic?)
by Michael Long 18 Sep '03

18 Sep '03

Hi, I am attempting to implement a back button in my zpt page. The following code works in IE but not Mozilla Firebird. When I click the button in Firebird nothing happens. I have checked the options in Firebird and javascipt is enabled. Does anyone know what could be causing this behavior? <input type="button" value="Back" onClick="history.go(-1);return true;"> Thanks, Mike

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Zope question
by Damian Maitland 18 Sep '03

18 Sep '03

Hello im interested in Zope but i need to know if it can do what i need it to do. I would like to build a community portal for my area, a portal similar to http://www.gopbi.com. Also i would like ot know if it can be installed on a Cobalt Raq 4R server. Thanks in advvance. Damie --------------------------------- Do you Yahoo!? Yahoo! SiteBuilder - Free, easy-to-use web site design software

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HOWOT: DirectoryStorage and Zope under Debian
by J C Lawrence 18 Sep '03

18 Sep '03

I've recently become a fan of DirectoryStorage: http://dirstorage.sourceforge.net/ and spent some time getting it happy under Debian's Zope package. In case others may want to do the same, here's how I got it working: 0) The assumption is that all the following are performed as root. 1) Install Zope in the normal Debian fashion. (# apt-get install zope). Note: I didn't install the 'zopectl' package. 2) Install DirectoryStorage as per the install instructions in /usr/lib/zope/lib/python, and copy the product directory over to the appropriate Zope instance. For me that was /var/lib/zope/instance/default/Products. 3) Follow the rest of the DirectoryStorage installation instructions. 4) custom_zodb.py should look something like: --<cut>-- import os,sys from DirectoryStorage.Full import Full as S from DirectoryStorage.Filesystem import Filesystem # Change this to point to your database directory fs = Filesystem('/var/lib/zope/instance/default/var/Data_fs_dir') Storage = S(fs) --<cut>-- Your path for the value of `fs` may vary if you're using a non-default instance. 5) Edit /etc/zope/zopectlrc and comment out the ZOPEOPTS line which specifies the zope user as shown in the following excerpt: --<cut>-- ZOPEOPTS="${ZOPEOPTS} --pid ${zope_pidfile}" # ZOPEOPTS="${ZOPEOPTS} -u zope" ZOPEOPTS="${ZOPEOPTS} -l ${zope_logfile}" ZOPEOPTS="${ZOPEOPTS} -z ${ZOPE_HOME}" --<cut>-- 6) Edit /etc/init.d/zope and edit the first case such that it reads: --<cut>-- start|stop|restart|force-reload) su - zope -c "$ZOPECTL $ZOPECTLOPTS $1 $ZOPEOPTS" ;; --<cut>-- FYI the original form of the line was: $ZOPECTL $ZOPECTLOPTS $1 $ZOPEOPTS 7) Do the following (edit as appropriate for your instance) to get the permissions right on the log and pid files, the instance specific Products, and the DirectoryStorage hierarchy you just created: # chown zope.zope /var/run/zope/default /var/run/zope/default/* # chown zope.zope /var/log/zope/default /var/run/zope/default/* # cd /var/lib/zope/instance/default # find . | xargs chown zope.zope 8) Start zope: # /etc/init.d/zope/start You should see many new files being created under your DirectoryStorage hierarchy and after a short delay while a default ZODB is instantiated, Zope should be running atop the new storage layer. 9) Follow the rest of the DirectoryStorage installation and operation instructions. Enjoy. -- J C Lawrence ---------(*) Satan, oscillate my metallic sonatas. claw(a)kanga.nu He lived as a devil, eh? http://www.kanga.nu/~claw/ Evil is a name of a foeman, as I live.

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RE: [Zope] Back button (off topic?)
by Michael Long 18 Sep '03

18 Sep '03

Thanks...I went to Bugzilla and discovered that this is a known bug in Firebird/Mozilla. You can get more information by searching for Bugzilla Bug 214250. Later, Mike > This seems to be a bug in Firebird. I tested version 0.6.1 on > Windows. > I found that if I double-clicked on my test file, there was a history > object and it had the right methods. But if I loaded some other page > first, then loaded the test file, there was no history object. > However, > Mozilla 1.2.1 worked correctly. I do not have a more recent version > of > Moz on this system to try, so it might be a bug in Moz rather than > Firebird per se. >

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RE: [Zope] Back button (off topic?)
by Michael Long 18 Sep '03

18 Sep '03

Thanks...I went to Bugzilla and discovered that this is a known bug in Firebird/Mozilla. You can get more information by searching for Bugzilla Bug 214250. Later, Mike > This seems to be a bug in Firebird. I tested version 0.6.1 on Windows. > I found that if I double-clicked on my test file, there was a history > object and it had the right methods. But if I loaded some other page > first, then loaded the test file, there was no history object. However, > Mozilla 1.2.1 worked correctly. I do not have a more recent version of > Moz on this system to try, so it might be a bug in Moz rather than > Firebird per se. >

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Can't get past the login screen...
by Ron 17 Sep '03

17 Sep '03

I've installed Zope on a RH system, I get the password dialog (for 3 gerr... days) but nothing else, the system continues to ask for a correct username/password. I have run the zpasswd.py script with "access" and "inituser" in both the /usr/lib/zope2.7 and it's "bin" directory, used clear passwords, and the default, changed permissions (on everything) to "zope" (Zope runs as user zope on my system). Restarted after each password change, run it with Galeon, Mozilla, Konqueror... From a remote machine and a local, searched the mailing list (Yahoo lists SUCKS, btw), Google, and the Zope site and read the logs. The best message I have received from zope comes from Konqueror "Authentication Failed!" Can anyone suggest how I might get Zope working? Thank you. (This is SO FRUSTRATING!!!) -Ron Details: RH 7.2, Zope: 2.7.0-b2, Python2-2.2.3-1, Zope and Python compiled and installed from rpm's.

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