July 2000 - Zope - Zope lists

Problems shutting down Zope
by Firestar 07 Jul '00

07 Jul '00

Hi, i have just installed Zope-2.1.6 on a linux server. Starting and stopping Zope from command line - no problem, but when i chose to Shutodwn from the Zope Control Panel, it complained of an error (printed below): ------------------------------------------- Traceback (innermost last): File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/Zope-2.1.6/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_shutdown) File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: manage_shutdown) File /usr/local/Zope-2.1.6/lib/python/App/ApplicationManager.py, line 330, in manage_shutdown (Object: ElementWithAttributes) SystemExit: 0 ---------------------------------- I also tried installing the Zope Tutorial, but adding the product was not successful. Is the tutorial still "raw" and may be troublesome to install? Thanks in advance from a newbie. regards, firestar ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup

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Problem calling SESSION object
by wai＠mahirnet.com 07 Jul '00

07 Jul '00

Hi All, Need Help. I'm currently using SQLSession v 0.2.3, with access database ( I had changed the "value" filed in session_data to item_value and also all sql statements that refer to it). I had no problem generate the session id, but however, I had problem calling session object after I insert it into session_data. I got an error when calling the <dtml-var "SESSION['xxx']">, i got this : Zope Error Zope has encountered an error while publishing this resource. Error Type: NameError Error Value: upper

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calendarTag exception
by Darrell Gallion 07 Jul '00

07 Jul '00

Trying to use the calendarTag and get this error. I'm using the example code from http://yyy.zope.org/Members/judell/CalendarTagExample Before I redesign this thing, it seemed I must be doing something dumb. I'm using this version Calendar-0.9.13.tar.tgz and Zope-2.2.0b1 --Darrell Error Type: KeyError Error Value: BASE1 Traceback (innermost last): ... File E:\zope\public\lib\python\DocumentTemplate\DT_String.py, line 504, in __call__ (Object: index_html) File E:\zope\public\lib\python\Products\Calendar\CalendarTag.py, line 227, in render File E:\zope\public\lib\python\Products\Calendar\CalendarTag.py, line 346, in render_dwm File E:\zope\public\lib\python\Products\Calendar\CalendarTag.py, line 374, in render_day_ File E:\zope\public\lib\python\DocumentTemplate\DT_Util.py, line 263, in namespace File E:\zope\public\lib\python\Products\Calendar\CalendarTag.py, line 177, in render KeyError: (see above)

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Is Zope slow?
by Firestar 07 Jul '00

07 Jul '00

Hi, I'm considering using Zope as the development tool for my next web project. However, I read from a recent benchmark test (from Qube, i think) that Zope(running thru Zserver?) is much SLOWER than Apache and AOLserver. Is that true? To all Zope users and 'guru's, what is yr experience using Zope? regards, firestar ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup

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ANN: Forthcoming Zope Book
by Amos Latteier 07 Jul '00

07 Jul '00

Hi, We all know that Zope needs better docs. To this end we've added a help system, API docs and a tutorial to Zope 2.2. Now the important work of replacing the aging guides is job number one. Michel Pelletier has been diligently working on a Zope book for O'Reilly for a number of months. I convinced him to take me on as a co-author and turn the book into official Zope documentation. O'Reilly is on board and is currently choosing between two different open content licenses. Find out the full scoop on the Zope Docs Wiki. http://www.zope.org/Wikis/Docs/ZopeBook We're excited about the book and think that it will fill an important hole the current official Zope docs. As soon as a content license is chosen we'll make our rough drafts available. -Amos -- Amos Latteier mailto:amos@digicool.com Digital Creations http://www.digicool.com

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RE: [Zope] 2.2b3 hangs a lot
by Brian Lloyd 07 Jul '00

07 Jul '00

> been running 2.2.0b3 for a few days now. > config > redhat6.1 > postgres > ZPygreSql > kmnetnews > > after some time, zope just hangs. when i do top, there's no > processor usage at > all on all python processes. after a few minutes, zopes wake > up and continue > to serve. the cycle continues after some time. the hangup > is very sporadic. > <snip> If you look at the server logs when it hangs, do you see any pattern as to what was requested when this happens? I haven't been hearing of any hanging issues with the 2.2 betas, which makes me suspect that something specific to this site may be in play here. The fact that it comes back to life on its own after a while makes me think that this is either a very strange system issue or tied up with something that has a timeout (for ex. is it possible that a query is trying to run, timing out against the postgres database?) If the PygresSql DA is not fully thread-safe then I could imagine this as a possiblity. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Re: [Zope] Is Zope slow?
by Firestar 07 Jul '00

07 Jul '00

Hi, thanks for your comment. >Absolutely. Apache is many times faster than Zope. (Don't know >much about AOLserver, but anything with AOL..... :) >However, Apache can't do squat compared with Zope when it comes >to dynamic content. Not true. I have been programming using PHP and PERL, and together with Apache(DSO) they are quite fast. They do offer sessions tracking, authentication, database API + other features. It's just that due to the increasing 'hype':) on Zope and the vast array of features that it seems to offer, i'm sort of "attracted" by it:) Of course if i have time, i will play ard with it and see how good it is. Problem is that time is not really on my side and i need to decide on my next development tool fast(i have yet to try out other stuff e.g. ASP, JSP, Servlet..) I heard that the learning curve for Zope is quite steep, plus the documentation is not(?) that comprehensive, compared to e.g. PHP. What are your comments though? i may be wrong here... regards, firestar ______________________________________________ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup

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Unable to upload images from client to server
by Kelvin Cheong 07 Jul '00

07 Jul '00

Hello All! I have this problem with "UPLOADING". In my HTML form (DTML-embedded-Document) I have data and images to insert into a mySQL DATABASE. Therefore I'm calling SQL statements from my DTML METHOD. However, it seems the SQL insert command does not allow LOAD_FILE procedure as does the SQL update command e.g.: UPDATE table_name SET blob_column=LOAD_FILE('full_path_of_file') WHERE table_column='table_column value' So I had to resort to using TWO separate SQL methods : 1) to insert the "data" alone into the database first, from the form; 2) then another to insert the image of the same form using the SQL "update" command, verified my the data record's unique id. All this works fine but this method does not work with the <...ENCTYPE="multipart/form-data"...> value at the html form header. Instead it only works with <...ENCTYPE="application/w-xxx-form-urlencoded"...>. If I use "multipart/form-data" it will enter the string of the command LOAD_FILE('...file...') instead of the actual image contents. Why is this? This is only one small part which I'm puzzled about as this method would only allow images on the server's harddisk to be uploaded. The main concern is UPLOADING from the client. Having mentioned so, the next problem I'm facing is uploading the file onto the Zope Server from the client. Having searched on the net, it appears that I will have to use CGI's on my server side to temporarily grab the files contents and place it somewhere. Is there anyway to use DTML without the involvement of external CGI's? Also, it seems that if I had to do this on Zope, it will require me to use Python. Which of course sounds hard. Then the questions arise regarding CGI's (IF IT REALLY IS REQUIRED): 1) How on earth do I do this?; 2) What if there were multiple users uploading files at the same time, then what happens to the single temporary file which stores the uploaded files' contents. 3) If I were to use a /cgi-bin/... how will that relate to where ZOPE is installed, in other words, would the directory structures get confusing? I'm not a hopeless programmer but neither am I close to even "quite good". Learning won't be a problem, but I'll need the answers quick, as I do not have the time in my hands. Can anyone please help me out? I've looked in discussion forums and the DTML reference, as I have said I'm practically a beginner programmer, and was unable to understand even half of what had been posted. VCN - The Leader In Corporate Communication Solutions Visit our website at http://www.vcn.com.my. or http://www.vcnlinux.com

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Re: [Zope] RE:How do I merge form & URL vars into sql easily
by Michael Blewett 07 Jul '00

07 Jul '00

At 20:39 6/07/2000 -0400, R. David Murray wrote: ><snip> >Once you generate an output page, the user views it, and then clicks >again, you have a brand new REQUEST object that can only get values >from the *new* web page. Others have been tripped by this, expecting >the REQUEST fields to automatically carry over from one form to >the next. They don't, unless you explicitly put hidden fields into >your form to store the variables values for the next REQUEST. >But as long as you are still server side and making DTML calls, >REQUEST is there. Maybe I should have mentioned that my bucket gets emptied after each new page is requested...just to keep the analogy going... Thanks for clarifying that - always happy to be corrected, especially if it makes things clearer. - Michael ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Michael Blewett Computer Support Mgr - Biological Sciences Monash University (Clayton Campus) Victoria Australia 3168 " Can I trade this job for what's behind door #2? "

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RE:How do I merge form & URL vars into sql easily
by Michael Blewett 07 Jul '00

07 Jul '00

Hi Jake, I originally had trouble coming to grips with the concept of variables and forms and passing them from one object to the next. After much testing, trial and error (and guidance from this list), I came up with these conclusions (which I'm sure someone will shoot down if I am wrong): 1) The request object you are setting with your REQUEST.set command is like a big bucket that gets passed between one web page and the next when you call it in your DTML. The best thing someone ever showed me was how to view in the called document ie. insert the line: <dtml-var REQUEST> into the dtml/method you are trying to call. If you do that you can see all of the variables that get passed normally as part of your REQUEST variable, as well as any that get added to it by your form in the act of your POST command in the form. Be prepared - it is a long list! You should be able to see all your form variables in there. If you don't then you haven't been doing your form correctly (been there done that too!). The only real 'nasty' I have come across so far id the checkbox - if it is unchecked it doesn't post anything to the REQUEST object, and then you need to check for it and set it, if you are using it to update an SQL database (this is the only time I use the <dtml-call "REQUEST.set['argument','value']">command. This is normal behaviour with forms and is not the fault of Zope. Hope this helps... - Michael > -----Original Message----- > From: zope-admin(a)zope.org [mailto:zope-admin@zope.org]On Behalf Of > asjf11(a)uaa.alaska.edu > Sent: Wednesday, July 05, 2000 5:32 PM > To: zope(a)zope.org > Subject: [Zope] How do I merge form & URL vars into sql easily > > > I am a new user to Zope and I'm trying to pass data that has been > entered into a form (either through GET or POST) into another > object. This object calls a z sql method to insert the form data into > the database. So far, the only way I've found to pass data to the > sql is to define arguments for it and then, in the dtml-document (or > method) use: > <dtml-call "REQUEST.set['argument','value']"> > (and it took me long enough to figure THAT out, let me tell you) > The problem is that sucks when there are 30 form varibles that > need to be inserted into the database. > I would think that there is some way to let the sql method see > these varibles that are defined within my document. Or loop > through all URL or form varibles defined and sets all the vars in > request. Something to keep from having to write the above dtml 30 > times. Thanks. > > Jake Feasel > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Michael Blewett Computer Support Mgr - Biological Sciences Monash University (Clayton Campus) Victoria Australia 3168 " Can I trade this job for what's behind door #2? "

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