August 2000 - Zope - Zope lists

How to prime a selection?
by Jean Jordaan 04 Aug '00

04 Aug '00

Hi all I'm making a document class for a warehouse of papers. It's based on ZCatalogAware and ObjectManager (to wrap mainly PDFs and DOCs), and has fields: title (string type) origin (string type) format No value for format_value. type No value for type_value. "format" and "type" are selections -- 1. where do I supply their initial values (filling in 'format_value' and 'type_value')? 2. is it possible to let a field offer presets and previously entered values, but to allow users to add new ones, which are remembered and offered to subsequent users? A RTFM-type answer to question 1. is perfectly OK, though a page reference would be sorely appreciated. -- jean

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Upload applet in Java/JPython
by Alexander Limi 04 Aug '00

04 Aug '00

Hi, I tried posting this to the comp.lang.pyton group, but I never got any answer, so I was hoping that you friendly Zope folks could offer me some advice. The setting is this: My web site collects big files (typically 2-5 MB) that the users upload via HTTP POST (yeah, I know - FTP is nicer, but not when you have untrusted users). When a person submits his file, he has to wait 20-30 minutes for the upload to complete, without any visual feedback at all. This is clearly not desirable. What I imagine would be nice, is a small applet to handle the file and provide the user with a visual feedback on the progress of the upload. Just a simple progress bar. What I want to know is: Has this already been written by someone? Either in Java or JPython? If so, could you please provide me with a URL? If not, is this a big task? I am a Python newbie, and I haven't touched JPython at all. All help appreciated. Alexander.

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Installation of 2.2.0 under Linux
by Steve Sorenson 04 Aug '00

04 Aug '00

Hello, When I installed the source code of 2.2.0 on my Linux machine, I got an error message saying "Error 256" just after it began compiling the python modules. The same thing happens when I attempt to install the linux2 release. Has anybody else experienced anything of thie nature? ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

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Re: [Zope] create DTML-Source-link like on zope.org
by Chris Withers 03 Aug '00

03 Aug '00

Deryk Barker wrote: > > Try something like: > > > > http://www.mysite.com/folder/dtmlmethod/view_source > > 404 document not found...:-( Of course it was, I made up the url as an example :P > I'd like to view the source of my index_html. So you go to: http://www.yoursite.com/index_html/view_source. cheers, Chris

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Re: [Zope] Zope + Apache on FreeBSD 4.0 problems
by Peter Haight 03 Aug '00

03 Aug '00

> >Hi Peter, > > Hmm... I've never seen this problem, and I've been using >pcgi/FreeBSD since 2.2.8. I have however seen another problem: > >http://lists.zope.org/pipermail/zope/1999-December/016465.html > >that has never really been resolved. I'm going to try your >net.local magic to see if that has an effect. I tried the >FreeBSD lists at one time, and never got any response. Maybe >it's time to try them again.... I wasn't able to reproduce it on Zope. This is probably because I have since switched to using fast cgi which has fixed all my problems. I was able to reproduce it using your test script and just piping it to more. What's going on is that you are getting a broken pipe exception in self.stdout.write in HTTPResponse.write(), but that exception is getting masked somewhere which is why it seems mysterious as to what is happening. I have no idea why we get a broken pipe when piping that to more. I made a script: import sys file = open("fs.txt", "r") data = file.read(1024) while data: result = sys.stdout.write(data) data = file.read(1024) And piped that to more. Same problem. If I do 'cat fs.txt | more' it works fine. Upgrading my system from 4.0-RELEASE to 4.1-STABLE fixed this problem.

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Problem accessing property value
by David Riggs 03 Aug '00

03 Aug '00

This is a problem I'm running into using Zope 2.1.6 and PTK 0.7.1 on an NT machine...I plan on upgrading both as soon as the 2.2.1 bug fix is released...I believe the problem is just a syntax one... I'm running into a snag trying to access the value of a property I've assigned to an instance of a ZClass...specifically, I've created a ZClass of meta-type Customize, and created an instance (also called Customize for simplicity) in each member's home folder. [for reference sake, PTK creates a folder in the path /ZopeRoot/PortalRoot/Members/UserName for each member] The instance has a long list of properties that I'd like to access and use as customization settings for each individual user. Calling the property like this... <dtml-var "AUTHENTICATED_USER.getHomeUrl()+'/Customize.some_property'"> Yields the following string literal (which isn't what I need) http://host:8080/Portal/Members/UserName/Customize.some_property And calling it like so... <dtml-var "_(AUTHENTICATED_USER.getHomeUrl()+'/Customize.some_property')"> Gives me this weird string (definitely not what I want) <DictInstance object at 134fdc0> Where the hex number varies between 11xxxxx - 13xxxxx each time I render it. I've tried calling the Customize method like this <dtml-var "Members.UserName.Customize.some_property"> And I get the value I need, but this way I'm hard coding the user's name into the path, where I want it to not be user specific. I've tried a few times with getAttribute and getProperty, but can't seem to get the syntax correct...If any Zope Masters could offer a hand, it'd be GREATLY appreciated! Thanks, David Riggs

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Re: [Zope] Confusing aq - I don't get it, anyone know why?
by Dieter Maurer 03 Aug '00

03 Aug '00

Brad Clements writes: > ... Name Error in called DTML method .... > <dtml-var "FormatColumnTable(columnlist=packagecolumns,obj=GetSelf(),notable=1)"> Here, you break the namespace propagation! As a general rule: If you call a DTML object explicitely (i.e. inside "..."), then *always* use "_.None" (or an object or object tuple) and "_" as the first two positional parameters. Only after these two, use your parameters as keyword parameters. If you do not, you break the namespace propagation (passing the "_" down to your called DTML object). If you use the DTML object outside "..." (or in _[...]), then the DTML magic does automatic propagation. Inside "...", you must do it explicitely. Dieter

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Re: [Zope] Evaluating a string of DTML code?
by Dieter Maurer 03 Aug '00

03 Aug '00

T.J. Mannos writes: > I have an ExternalMethod that processes an HTML file, extracts the contents > of the BODY tag, and wraps my site template around it. (In other words, it > takes a plain vanilla HTML file and adds standard_html_header and > standard_html_footer). > > [See http://www.zope.org/Members/unfo/howto_wrapper/index_html for more > background] > > The problem is this: I can't have arbitrary DTML code in the HTML file. > Zope completely ignores it. I tried fmt=structured-text, but that doesn't > work, either. Since the file is essentially read in as a string, is there > any way to evaluate an arbitrary string of DTML code? What prevents you, to render the body? This should handle DTML expansion, at least for simple cases. def wrap(self,what): REQUEST= self.REQUEST return self.standard_html_header(self,REQUEST) \ + what(self,REQUEST) \ + self.standard_html_footer(self,REQUEST) This will break, if one of the DTML objects needs arguments not present in the current REQUEST. Dieter

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Re: [Zope] Batchpeocessing with multiple selection
by Dieter Maurer 03 Aug '00

03 Aug '00

vikas writes: > .... > For this i am using batch processing. But > it is giving me errors Such as key error [city],[state] and gives the url > of my page where i m using batchprocessing. Can someone help me out how to > overcome the problem this problem as this is very urgent for me. > ... You may make one of two types of errors: * you have no navigation button or did not include "sequence-query" in it "href" * you used "method=post" to send your query. In this case "QUERY_STRING" is not defined, and "sequence-query" does not work Dieter

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2.2 as a service and Zodbcda
by Jim Sanford 03 Aug '00

03 Aug '00

Can you shed any insite? ***********Result of testing Z SQL Method with Zope 2.2 running as a service: Z SQL Method at /scripts/Zope.pcgi / testing / test2 -------------------------------------------------------------------------------- Error, sql.error: ('S0002', 173, "[Microsoft][ODBC Visual FoxPro Driver]File 'names.dbf' does not exist.") -------------------------------------------------------------------------------- SQL used: Could not render the query template! Registry Parameter= start : REG_SZ : "C:\Progra~1\ATIAny~1\bin\python.exe" "C:\Program Files\ATIAnywhere\z2.py" -D -p C:\InetPub\scripts\Zope.pcgi ================================================= ************Result of testing Z SQL Method with Zope 2.2 running from start.bat.: Z SQL Method at /scripts/Zope.pcgi / testing / test2 -------------------------------------------------------------------------------- Company ATMEL -------------------------------------------------------------------------------- SQL used: select company from names where val(id)=27000 Start.bat="C:\Program Files\ATIAnywhere\bin\python.exe" "C:\Program Files\ATIAnywhere\z2.py" -D -p C:\InetPub\scripts\Zope.pcgi ============================================= Both are running via pcgi through MS IIS 4.0 Here is Zope.pcgi: #!C:\Program Files\ATIAnywhere\pcgi\win32\pcgi-wrapper.exe # # This PCGI info file was generated automatically by # the Zope installer. See the file doc/WEBSERVER.txt # for more information on setting up PCGI support. PCGI_NAME=Anywhere PCGI_PORT=8090 PCGI_MODULE_PATH=C:\Progra~1\ATIAnywhere\lib\python\Main.py PCGI_PUBLISHER=C:\Progra~1\ATIAnywhere\pcgi\pcgi_publisher.py PCGI_EXE=C:\Progra~1\ATIAnywhere\pcgi" PCGI_SOCKET_FILE=C:\Progra~1\ATIAnywhere\pcgi\pcgi.soc PCGI_PID_FILE=C:\Progra~1\ATIAnywhere\pcgi\pcgi.pid PCGI_ERROR_LOG=C:\Progra~1\ATIAnywhere\pcgi\pcgi.log PCGI_DISPLAY_ERRORS=1 BOBO_REALM=Zope BOBO_DEBUG_MODE=1 INSTANCE_HOME=C:\Progra~1\ATIAnywhere

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