September 2004 - Zope

Newbie namespace question
by Jeffrey Blaze 30 Sep '04

30 Sep '04

Hi all, My question is really about HTML. I am implementing an open source defect tracking system called Roundup (a set of Python modules), and noticed that it uses TAL. However, I looked all through the Roundup and Python HTML and did not find a namespace declaration. Isn't one required? This from (http://www.zope.org/Documentation/Books/ZopeBook/2_6Edition/AppendixC.s tx): The prefix identifies the language, and must be introduced by an XML namespace declaration in XML and XHTML documents, like this: xmlns:ns="http://language.creator.com/namespaces/MyAttributeLanguage I realize that the statement above mentions XHTML but not HTML, implying that non-well-formed HTML does not require the declaration. But in the absence of the declaration, how does HTML know how to handle a TAL statement attribute? Why wouldn't it balk as soon as it sees the tal: prefix? Thanks, Jeffrey Blaze

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How to trace deadlocks in my application?
by Kirk Strauser 30 Sep '04

30 Sep '04

I'm developing a fairly complex application that involves a lot of SOAP calls to a remote database server and quite a few external methods. All too frequently I'll get a report that the site's not responding, and when I log into the (FreeBSD) webserver I see that the CPU is pegged at 100% with Python eating all available resource. Does Zope offer any functionality that could help me trace which objects are causing these lockups? -- Kirk Strauser The Day Companies

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Calendaring product and default view
by Bryan Simmons 30 Sep '04

30 Sep '04

I've recently installed the Calendaring product from the collective. The default view or base_view as the action is known, is an upload page for uploading an iCal file for integration with the calendar. Suppose I wanted to switch this default view to the month_view action instead? I have tried to come up with an easy way of doing it (i.e. some property somewhere including default_page for the folder) but nothing seems to work. The documentation that comes with the product is almost nil, so it wasn't much help. Anyone have any ideas or experience with this? -- Regards, Bryan Simmons -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=- Always code as if the guy who ends up maintaining your code will be a violent psychopath who knows where you live. -- Rick Osborne -=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-=-

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Survey of open source content management systems
by Shai Sachs, e-guana.net 30 Sep '04

30 Sep '04

Dear Zope User, E-guana.net, an internet consulting firm that for the next two weeks is conducting a survey of the eleven leading open source content management systems. We are interested in your experiences with Zope. If you would like to share your experience and opinions about <CMS Project Name> please complete our brief online survey at http://www.e-guana.net/cmsstudy.htm. The survey is short, and should take no more than 10 minutes to complete. Those who complete the survey by October 8th will receive a complimentary free copy of the survey results once it is complete. Feel free to contact me if you have any questions. Thank you, Shai Sachs ******************* Shai Sachs Associate Consultant e-guana.net, Inc. 400 One Kendall Square, Fourth Floor Cambridge MA 02139 617-621-8555 x 20 <http://www.e-guana.net> http://www.e-guana.net

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Dynamic output encoding
by Ralph van den Houdt 30 Sep '04

30 Sep '04

Hi All, I want to change the output encoding of a DTML Method based on a session variable. But unfortunately the code below doesn't work. The client Mozilla/IE presents the page as standard ISO-8859-1, even is the meta tag is set to ISO-8859-9. Any suggestions? Greetings Ralph <dtml-if "get_session_language_code() == 'tr'"> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-9"> <dtml-call "RESPONSE.setHeader('Content-Type', 'text/html; charset=ISO-8859-9')"> <dtml-else> <meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"> <dtml-call "RESPONSE.setHeader('Content-Type', 'text/html; charset=ISO-8859-1')"> </dtml-if>

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ZCTextIndex Lexicon problems
by Jonathan Hobbs 30 Sep '04

30 Sep '04

I have bulk uploaded about 100k records (zclass instances) into a BTreeFolder2 and am using the following code to create entries in a zcatalog (I am not using catalog-aware instances): import os, sys, traceback import Zope app=Zope.app() from Testing import makerequest app = makerequest.makerequest(app) for item in app.sw.WebSitesFolder.WebSitesData.objectItems(): uid = item[0] obj = item[1] app.sw.WebSitesFolder.Catalog.catalog_object(obj, uid) if cnt == 1000: get_transaction().commit() cnt=0 get_transaction().commit() This works if I only have about 10k entries in the BTreeFolder2 (WebSitesData), but when I have larger volumes of records the Lexicon doesn't work: ie. 0 ( yes, 'zero') entries in the Lexicon, but no errors. The zcatalog contains the correct number of entries, but when you try to access a record in the zcatalog (via the ZMI) you get the following error: Traceback (innermost last): Module ZPublisher.Publish, line 98, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Shared.DC.Scripts.Bindings, line 252, in __call__ Module Shared.DC.Scripts.Bindings, line 283, in _bindAndExec Module App.special_dtml, line 174, in _exec Module DocumentTemplate.DT_In, line 628, in renderwob Module DocumentTemplate.DT_Util, line 201, in eval - __traceback_info__: rid Module <string>, line 0, in ? Module Products.ZCatalog.ZCatalog, line 572, in getIndexDataForRID Module Products.ZCatalog.Catalog, line 441, in getIndexDataForRID Module Products.ZCTextIndex.ZCTextIndex, line 193, in getEntryForObject Module Products.ZCTextIndex.Lexicon, line 92, in get_word KeyError: 1965 The zclass instances in the BTreeFolder2 (WebSitesData) are ok (ie. you can examine them via the ZMI and all the fields are displayed as expected). Has anyone encountered this situation??? Thanks in advance, Jonathan

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SOAP Method
by Ruchith Fernando 30 Sep '04

30 Sep '04

Hi All, I'm trying to use the SOAPMethod product to use some web service from ZOPE. I was able to call a web service that doesn't take any parameters (RPC Style). I created a SOAP Method called "ws1" which calles a simple web service and called it int eh following manner from the browser. http://localhost:8080/ws1 And it gave me the proper response. But when I'm using the a SOAP MEthod how can I pass parameters into a webservice from the browser. I tried to use the following but it didn't work :-? http://localhost:8080/ws1?param1=value1 Any idea will be really helpful :) Thanks Ruchtih

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Products.ZWiki.Mail pollution of ZSQL-Methods
by Andreas Elvers 30 Sep '04

30 Sep '04

Hi, today I tried to export a Zope folder (on Zope 2.6.4) and re-import it on a different system. I got an import error, telling me module Products.ZWiki.Mail is not available. After checking on my export system, I remembered that i had installed ZWiki 0.18 some time ago (in Debian/unstable). Well - ok... let's de-install it. It did not work. I also tried to pack the database. But to no effect. After doing an XML-export i found the problem. in some Z-SQL-Methods I found: <item> <key> <string id="96079.23" encoding="repr">parser</string> </key> <value> <global id="96079.24" name="atoi" module="Products.ZWiki.Mail"/> </value> </item> Since I'm lazy: Do I only need to remove this <item> </item> pair and renumber the second part of the id for the whole record #96079 to get the import right ? Another option could be to recreate all polluted ZSQL-Methods. Thanks for your help, - Andreas

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Re: [Zope-dev] session problem again?
by Chris McDonough 30 Sep '04

30 Sep '04

Hi Matteo, Please make sure to cc the list, thanks... >> A much better tact would be to make your application work under Zope >> 2.7.3. What prevents it from running under 2.7.3 now? >> >> - C > > Hi chris the problem now is that yesterday night I installed ZWarehouse > on Zope2.7.3b1 > I reboot the server but I still have the same error!!! > As you can see on the post below I followed your advice and installed > Zope2.7.3 but no way to solve the problem... But... but... this is fixed in 2.7.3. ;-) There's almost no way the same error could happen. Really. I've tested this. Lots. ;-) > Another strange thing is that after installing Zope2.7.3b1 Zwarehouse > worked ok except for the fact that I could not see images of products > saved on database( for my fault because I did not update the mysql > driver) so this morning I restored the server to the situation of one > week ago brutally (overwriting everything, copying from backup) and till > now I cannot reproduce the error. Does this mean you can or can't reproduce the error under 2.7.3? > Until yesterday I could reproduce the error waiting for a session to > timeout and updating some page containing 'session=REQUEST.session' or a > Zwarehouse script called setSessionOnRequest.py. And what happened yesterday? It started to work? > I cannot understand... where are persistent data session containers? > only in RAM or also in some temp folder on the system? It depends where you have your session data container path set to in your /session_data_manager object. If it points to the object in /temp_folder/session_data_container, your session data is not persistent. If it points to a different session data container, your session data is persistent. > Right Now I'm running Zope2.6 on production system but I'm installing > Zope2.7.3.b1 (downloaded from zope.org/download is that the right > version should i have?) on another > virtual machine trying to replicate the situation and the error because > I'm sure that error will come soon again! That's the right version. I'm so confused. Can we start over again? Here's what I'd like you to do: - please don't tell me any more about problems you have when you run under 2.6.X. I know that's broken. ;-) - please only tell me about problems that you have when you run your application under 2.7.3 b1 (not any other 2.7 version). - if you experience a problem using ZWarehouse under 2.7.3b1, please tell us about it in detail (including a traceback) no matter whether it does or doesn't have anything to do with sessions, so we know what you're trying to do and how it doesn't work. Thanks! - C

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Re: [Zope] redirection problem
by Larry McDonnell 30 Sep '04

30 Sep '04

J Cameron Cooper wrote: > Larry McDonnell wrote: > >> I have run into a wall. I am trying to use a pull down menu to >> redirect the form to another page. >> >> <select name="form_action_type" size="1"> >> >> <dtml-in lookup_action_query sort=school_name> >> <OPTION VALUE="<dtml-var action_file_location>"> >> <dtml-var school_name> <dtml-var sport_type> >> </OPTION> >> </dtml-in> >> </SELECT> >> >> action_file_location hold the path to where I am trying to get to. I >> tried this >> <form method="post" action=<dtml-var expr="form_action_type">> >> >> But I get a key error. I am trying to do this on the same form.Can I >> do this? Can some point me in the right direction. > > > How is DTML to know what the selected value of the HTML widget is? > Remember that the choice is client side and the rendering is all > server side. If it doesn't exist in the namespace upon rendering, a > name will never be found, thus your key error. > > The object to which this form is submitted will have > 'form_action_type' in the REQUEST, however. > > You have two options: > > 1. use Javascript to change the form's action value upon change in the > widget. > > 2. create a Python script and submit the form to that. The script will > look up the value in the REQUEST and do a redirect. This will look > something like:: > > ## parameters=form_action_type > > context.REQUEST.RESPONSE.redirect(form_action_type) > > > I like #2 because it doesn't rely on browser capabilities. Your other > option is to restructure your UI: make it a list of links and the > problem goes away. May or may not be feasible. > > --jcc > Hi, I can get the standalone python script to work but when I put this in zope I get two different errors: I get a page does not diplay error if I do this: <dtml-in lookup_action_query sort=school_name> <OPTION VALUE="<dtml-var action_file_location>"> <dtml-var school_name> <dtml-var sport_type> </OPTION> </dtml-in> </SELECT> <dtml-call "action_type(REQUEST)"> I get a name error <select name="form_action_type" size="1"> <dtml-in lookup_action_query sort=school_name> <OPTION VALUE="<dtml-var action_file_location>"> <dtml-var school_name> <dtml-var sport_type> </OPTION> </dtml-in> </SELECT> <dtml-call "action_type(action_file_location)"> I am still weak on my python/zope coding. Any help would be great. Thanks, Larry

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