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InvalidObjectReference strikes
by jurgen.defurne＠pandora.be 23 Aug '04

23 Aug '04

Hello, Since a month or three, I am writing a transactional application using Zope and postgreSQL. My progress is not very high, because of learning Zope and its idiosyncracies, and because of our little daughter, born two months ago. However, I could see advancement in it. I am writing this as an MVC application, using events to find out which script to run, and a table driven screen flow manager to decide what should be the next screen. I very much like TAL, because it makes it possible for me to generate some default screens based upon the database table descriptions. In my application, I first need to build up my resulting data before I instantiate a screen from a template. Since I am only now beginning to add real functionality to my system (as previously making sure that my basic structure was allright), I only got now to the following problem. I need some 'batch' programming, for which I use a ZSQL object. I can query the object fine, but I cannot assign any part of the result into my session. Even if I try to copy separate fields from the result into another array, I always get the Error Type: InvalidObjectReference Error Value: Attempt to store an object from a foreign database connection error. Does anyone have a clue how I can copy the contents of the query result into a Python array or dictionary in Zope ? Regards, Jurgen

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RE: [Zope] Advice on upgrade?
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 23 Aug '04

23 Aug '04

I *JUST* did that myself :) What I did: - configure and install the core Zope 2.7.2 - create a new 2.7.2 instance - copy over the products (Both core and instance) - edit the zope.conf - copy over the data.fs done! worked great for me. J.F. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of hpinson(a)indepthl.com Sent: August 20, 2004 10:19 AM To: zope(a)zope.org Subject: [Zope] Advice on upgrade? I am unclear on the upgrade process. I would like to upgrade from Zope 2.7 to 2.7.2. Platform is Fedora Core 1 with Python 2.3. installed. I have two directories /var/zope2.7 and /var/zope-instance I will install the new version to /var/zope2.7.2 How can I make use of my existing /var/zope-instance? Or is it best to recreate a new instance from scratch? Harlow Pinson Indepth Learning Email: hpinson(a)indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678 _______________________________________________ Zope maillist - Zope(a)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 )

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Possible incorrect http header "Last-Modified" with ExternalFile
by BLOCKLEY Adrian 23 Aug '04

23 Aug '04

Hi, I am not sure if this is the right place to ask this but I think I have found a possible problem with ExternalFile not returning the correct http header Last-Modified when linking to a gif file. This is in turn causing problems with caching. For example, the file weekly.gif is stored as an externalfile object in our web server. Using wget to retrieve the header information returns the following: wget -S http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/weekly.gif --15:57:35-- http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/weekly.gif => `weekly.gif.22' Resolving aqmpweb.environ.wa.gov.au... done. Connecting to aqmpweb.environ.wa.gov.au[192.168.1.3]:80... connected. HTTP request sent, awaiting response... 1 HTTP/1.1 200 OK 2 Date: Thu, 19 Aug 2004 08:13:11 GMT 3 Server: Apache/1.3.28 (Linux/SuSE) 4 Accept-Ranges: none 5 X-Powered-By: Zope (www.zope.org) Python (www.python.org) 6 Content-Length: 22369 7 Last-Modified: Thu, 01 Jan 1970 00:00:00 GMT 8 Keep-Alive: timeout=15, max=100 9 Connection: Keep-Alive 10 Content-Type: image/gif 100%[======================================================>] 22,369 21.40K/s ETA 00:00 Last-modified header invalid -- time-stamp ignored. Repeating for another file that is not an image but stored as an externalFile object returns the following: wget -S http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/aqr.html --16:30:39-- http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/aqr.html => `aqr.html.1' Resolving aqmpweb.environ.wa.gov.au... done. Connecting to aqmpweb.environ.wa.gov.au[192.168.1.3]:80... connected. HTTP request sent, awaiting response... 1 HTTP/1.1 200 OK 2 Date: Thu, 19 Aug 2004 08:46:16 GMT 3 Server: Apache/1.3.28 (Linux/SuSE) 4 X-Powered-By: Zope (www.zope.org) Python (www.python.org) 5 Content-Length: 3251 6 Keep-Alive: timeout=15, max=100 7 Connection: Keep-Alive 8 Content-Type: text/html 100%[======================================================>] 3,251 1.55M/s ETA 00:00 Repeating with an image that is not an externalfile object returns the following: wget -S http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/mapperth.g if --16:32:00-- http://aqmpweb.environ.wa.gov.au/aq2/Current_Air_Quality/AQ_index/mapperth.g if => `mapperth.gif.2' Resolving aqmpweb.environ.wa.gov.au... done. Connecting to aqmpweb.environ.wa.gov.au[192.168.1.3]:80... connected. HTTP request sent, awaiting response... 1 HTTP/1.1 200 OK 2 Date: Thu, 19 Aug 2004 08:47:37 GMT 3 Server: Apache/1.3.28 (Linux/SuSE) 4 Accept-Ranges: bytes 5 Cache-Control: max-age=3600 6 Expires: Thu, 19 Aug 2004 09:47:37 GMT 7 X-Powered-By: Zope (www.zope.org) Python (www.python.org) 8 Content-Length: 11160 9 Last-Modified: Tue, 18 May 2004 06:49:30 GMT 10 Keep-Alive: timeout=15, max=100 11 Connection: Keep-Alive 12 Content-Type: image/gif 100%[======================================================>] 11,160 5.42K/s ETA 00:00 16:32:02 (5.42 KB/s) - `mapperth.gif.2' saved [11160/11160] It is not clear to me why gif images stored ExternalFile objects return a date of Thu, 01 Jan 1970 00:00:00 GMT each time. It looks like the time field is being set to 0 somewhere but my limited python and zope experience has not enabled me to locate whether the problems are in Zope, ExternalFile or maybe some hidden problem with our Zope configuration. If you have any suggestions as to where the problem may lie I would be most appreciative. By the way we are using: Zope Version (Zope 2.6.1 (source release, python 2.1, linux2) [SuSE Linux], python 2.1.3, linux2) Python Version 2.1.3 (#1, Sep 23 2003, 23:06:30) [GCC 3.3.1 (SuSE Linux)] System Platform linux2 Cheers Adrian Blockley ======================================================================= Adrian Blockley Western Australian Department of Environment 123 Adelaide Terrace East Perth Mailing address: PO Box K822 Perth W.A. 6842 Ph: +61 8 9278 0692 Fax: +61 8 9278 0639 =======================================================================

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ZODB and persistent objects
by Les Ferguson 22 Aug '04

22 Aug '04

I have searched and read a whole bunch of stuff on ZODB. Why do all the examples I can google for seem to resort to telling us how to implement ZODB externally from Zope? Where is some good old fashioned example code for implementing a simple collection of objects within Zope? I want to keep a small collection of data, the last 10 customer id's that were viewed/updated, with a timestamp and maybe a brief name field. This collection will be managed by an object that can do, eg. recentCust.Add(Customer_id, BriefName) recentCust.GetList() I thought rather than poking this small dataset into MySQL, I could just keep it in ZODB as a queue-type collection of data. What is the best approach for achieving this? Do I create a folder and store persistent objects in it of some kind, or are there more suitable built-in queue classes or dictionary type features already in the Zope API? -- Les Ferguson Software developer Waitakere, NZ

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Howto Developement Environment?
by Jerome R. Westrick 21 Aug '04

21 Aug '04

Hello Zopistas... Please excuse the repost if it happens... sent question yesterday, and it did not make it to list.. Anyway, I have a productive zope application, one server. I have a backup (considering to use it as developement) machine, that I want to keep up-to-date. Before I go do something stupid, what is the listers expiriences developement/productin environments? How do you all do this? what procedures do you use? Jerry P.S. I already got burned by the zope versioning system once, so I would like to avoid it.

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Advice on upgrade?
by hpinson＠indepthl.com 21 Aug '04

21 Aug '04

I am unclear on the upgrade process. I would like to upgrade from Zope 2.7 to 2.7.2. Platform is Fedora Core 1 with Python 2.3. installed. I have two directories /var/zope2.7 and /var/zope-instance I will install the new version to /var/zope2.7.2 How can I make use of my existing /var/zope-instance? Or is it best to recreate a new instance from scratch? Harlow Pinson Indepth Learning Email: hpinson(a)indepthl.com Web: http://www.indepthl.com Voice: 505-994-2135 FAX: 208-475-7678

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fastcgi with zope
by Sophia Grimm 21 Aug '04

21 Aug '04

I'm trying to run zope behind apache using fastcgi, but I'm having a problem setting up the directive properly. Zope 2.7 w/Plone 2, Apache 2, FastCGI 2.4.2, Macintosh OS X Server Apache error log shows Connection refused: FastCGI: failed to connect to server "/Library/WebServer/Documents/zope": connect() failed FastCGI: incomplete headers (0 bytes) received from server "/Library/WebServer/Documents/zope" Access log shows "GET /zope HTTP/1.1" 302 299 My DocumentRoot in httpd.conf is /tmp but OS X Server uses vhosting for all sites, and within the vhost, the DocumentRoot is /Library/WebServer/Documents. Here's how I have the config files set up. In httpd.conf, right after the ServerName configuration: ## FastCgiExternalServer /Library/WebServer/Documents/zope \ -host localhost:8889 \ -pass-header Authorization <Location /zope> SetHandler fastcgi-script </Location> ## As suggested in the fastcgi documentation, /zope is a file that does not exist. In zope.conf, I uncommented these lines: ## <fast-cgi> address localhost:8889 </fast-cgi> ## __________________________________ Do you Yahoo!? New and Improved Yahoo! Mail - Send 10MB messages! http://promotions.yahoo.com/new_mail

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Error with installing zope 2.7.2
by Martin Koekenberg 21 Aug '04

21 Aug '04

Hello, I did a new try to install Zope 2.7.2. But i'm getting a error with I can't explain. TypeError: unsupported operand type(s) for +: 'NoneType' and 'str' (This is the same error I get whem I want to install PIL.) This Is the way I installed Zope ./configure --prefix=/usr/local/zope/2.7.2 Make Then I get the following error line : running build_ext Traceback (most recent call last): File "/usr/local/zope/Zope-2.7.2-0/setup.py", line 1091, in ? distclass=ZopeDistribution, File "/usr/local/lib/python2.3/distutils/core.py", line 149, in setup dist.run_commands() File "/usr/local/lib/python2.3/distutils/dist.py", line 907, in run_commands self.run_command(cmd) File "/usr/local/lib/python2.3/distutils/dist.py", line 927, in run_command cmd_obj.run() File "/usr/local/lib/python2.3/distutils/command/build.py", line 107, in run self.run_command(cmd_name) File "/usr/local/lib/python2.3/distutils/cmd.py", line 333, in run_command self.distribution.run_command(command) File "/usr/local/lib/python2.3/distutils/dist.py", line 927, in run_command cmd_obj.run() File "/usr/local/lib/python2.3/distutils/command/build_ext.py", line 244, in run customize_compiler(self.compiler) File "/usr/local/lib/python2.3/distutils/sysconfig.py", line 159, in customize_compiler cpp = cc + " -E" # not always TypeError: unsupported operand type(s) for +: 'NoneType' and 'str' make: *** [build] Error 1 Where do I have to serach for the solution, Is it Zope, Python or a corrupted library ??? Whon can Help me ? Thanks, Martin Koekenberg

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Problem with external editor - SOS 2
by fowlertrainer 20 Aug '04

20 Aug '04

Hi ! I need to work in new place, with an old windows 98 machine. I installed zope, and I installed zope external editor, and editor product. Ok. But I have a problem in this type of OS. When I try to edit something, it is makes an error like this: FATAL ERROR [ERRNO 2] No such file or directory: '~\\ZopeEdit.ini' I try to place the ZopeEdit.ini in another directories, like C:\, C:\WINDOWS, but I has been failed. I everything do like in XP/2000, so I don't make mistake. ZopeEdit.ini has placed in dir of zopeedit.exe, so it must to find by exe, but it hasn't happening. Why ? Please help me ! Thanx: FT PS: I send this mail to zope.org. When somebody is try to help me, please write an private mail too, because I'm in digest mode. Thanxxxxxx....

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RE: [Zope] Re: Advice on upgrade?
by Jean-Francois.Doyon＠CCRS.NRCan.gc.ca 20 Aug '04

20 Aug '04

Ah, I'd wondered whether I could safely do that ... Just never really knew exactly how tied to a version an instance might be ... There could be changes in the ZCML for zope.conf for instance? ... Which is why I decided to to do it this way. Good to know the option is there though ... Maybe I'll do that next upgrade. J.F. -----Original Message----- From: zope-bounces(a)zope.org [mailto:zope-bounces@zope.org]On Behalf Of Paul Winkler Sent: August 20, 2004 5:15 PM To: zope(a)zope.org Subject: Re: [Zope] Re: Advice on upgrade? On Fri, Aug 20, 2004 at 04:36:40PM -0400, Jean-Francois.Doyon(a)CCRS.NRCan.gc.ca wrote: > Yup, or maybe when you re-edited zope.conf you missed something. > Or maybe you also need to edit the paths in bin/runzope and bin/zopectl. But I wouldn't take that approach at all. One nice thing about instances is that you don't have to tie them to a particular release and you shouldn't have to edit anything when you upgrade. What I do is this: 1) install zope in a versionless directory, e.g. in your example /var/zope 2) cd /var/zope and create your instance, e.g. in your example: /var/zope/bin/mkzopeinstance.py and name the instance something like: /var/zope-instance (again, no version number) 3) mv /var/zope /var/zope272 4) ln -s /var/zope272 /var/zope Having done all that, your future upgrades will be easier. E.g. when zope 2.7.3 comes out, you can install it in /var/zope273 and then do: ln -sf /var/zope273 /var/zope and you're done. No changes in your instance necessary. -- Paul Winkler http://www.slinkp.com _______________________________________________ Zope maillist - Zope(a)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 )

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