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Zope 3 Developer's Handbook
by Stephan Richter 20 Jul '05

20 Jul '05

Hello everyone, I just wanted to let you all know that the first book covering Zope 3 hit the shelves yesterday. It is called the "Zope 3 Developer's Handbook" and was published by Sams' Developer's Library. Link to Sams Web-Site: http://www.samspublishing.com/title/0672326175 Link to amazon.com: http://www.amazon.com/gp/product/product-description/0672326175 There is also an online version at: http://dev.zope.org/Zope3/Zope3Book However, I did not yet have the time to transfer the editions made by Sams back to the online version. This will happen in the next months though. Regards, Stephan -- Stephan Richter CBU Physics & Chemistry (B.S.) / Tufts Physics (Ph.D. student) Web2k - Web Software Design, Development and Training

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performance of textindexng2 vs. zctextindex
by Francis Kelly 20 Jul '05

20 Jul '05

I recently installed TextIndexNG2 2.1.1 on a system running Zope 2.7.6 on Fedora Core 3. I've been running some comparison tests with ZCTextIndex, which is what our site currently uses. We're indexing around 50,000 objects at the moment. For TextIndexNG2, this is the configuration: Indexed attributes keywordSearchSource Default encoding utf-8 Storage StandardStorage Stemmer english Splitter: casefolding enabled Splitter: index single characters disabled Splitter: max. length of splitted words 64 Splitter: separator characters .+-_@ Default query parser PyQueryParser Autoexpansion disabled Stopwords english Normalizer European Use converters disabled Near distance Left truncation disabled I've been struck that if the number of search hits is high, TextIndexNG2 is much slower than ZCTextIndex. For example, if I do a search on 'podcast' (our site deals w/ podcasting) I get about 14,000 hits. ZCTextIndex returns the results in about 0.1 seconds; TextIndexNG2 takes 31 seconds or 300 times longer. In general, the more hits there are, the bigger the difference between the two search indexes. TextIndexNG2 is great: it has many features that we really want and perhaps the cost of those features is performance vis-a-vis ZCTextIndex. But I'm hoping that maybe I've overlooked an obvious or not-so-obvious configuration issue that will enable me to speed up TextIndexNG2. Thanks for any advice. Francis Kelly www.loomia.com

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Cool monkey patch to make tracebacks more useful :-)
by Chris Withers 19 Jul '05

19 Jul '05

Hi All, Ever noticed how tracebacks from ZPT are actually quite useful when viewed through the error_log object, but totally useless when they fail, say, in a unit test? This bugged me, so I had a dig, and just discovered this cool monkey patch, to be inserted in any module that gets imported before an exception is raised: import traceback from zExceptions.ExceptionFormatter import format_exception traceback.format_exception = format_exception So now I'm mailing you lot for two reasons: 1. This makes life a lot easier when debugging failing unit tests and looking through entries in event.log that have tracebacks, so I thought I'd share it :-) 2. I wonder if there's anything bad that can happen as a result of this? If the answer to 2 is "no", then I'm gonna wrap this up into a minute product... cheers, Chris -- Simplistix - Content Management, Zope & Python Consulting - http://www.simplistix.co.uk

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Forcing Zope transaction commit
by David H 19 Jul '05

19 Jul '05

Hi list, At times (it seems) necessary to force a Zope transaction commit. This might occur between two zSQL calls where the second depends on the first's *SQL* transaction's availability but the first has not yet been commited because the *Zope* transaction that includes both zSQL calls has not yet been commited. I handled this with a call to an external script as below, eg . zSql1() . pyCommit() zSql2() Publish new page Here's pyCommit() # ............................................................... # Extenstion/pyCommit.py # ............................................................... from ZODB import FileStorage,DB def commit( self ): t = get_transaction() # ZODB builtin if t: t.commit() # ............................................................... Thats it. And it solved my problem. Is there a reason why this is a bad idea, all things being equal? A better way to do it, when needed? Thanks, David

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errors starting zmi
by rni users 18 Jul '05

18 Jul '05

Hello members, i am trying to start ZMI thru mozilla by http://localhost:8080/manage but it says 'localhost.com could not be found.Please check the name and try again.' though i ve already started Zope in the foreground..Moreover, it displays the port as 8080.. i also tried starting zmi by http://(hostname):8080/manage but even this didnt work out What can b the problem?? Kindly Help _________________________________________________________________ Top-of-the-line jobs!. http://creative.mediaturf.net/creatives/timesjobs/hotmail_TOL.htm Log on to www.timesjobs.com and apply TODAY!

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Creating Photo object from an Image object
by Thomas Adams 18 Jul '05

18 Jul '05

Hi, I have a problem with the "Photo" product. I want to create a Photo object from an existing Image object. I have a form with id and title input tags which are initialized with appropriate values from a special folder where the Image objects resides . Now I have written a PythonSript to handle the creation of a new Photo object #id1,title1 image id and tile def doAddPhoto(id1, title1): # some comments .... img = context.getObjectById(id1) # this returns the object part of object item array from context.objectItems s="ph" +str(id1) context.manage_addPhoto(id=s, file=img.data,title=title1, displays=None, precondition='', content_type='image/jpeg') (line 12) If I submit the form, an error occurs: Traceback (innermost last): Module ZPublisher.Publish, line 101, in publish Module ZPublisher.mapply, line 88, in mapply Module ZPublisher.Publish, line 39, in call_object Module Shared.DC.Scripts.Bindings, line 306, in __call__ Module Shared.DC.Scripts.Bindings, line 343, in _bindAndExec Module Products.PythonScripts.PythonScript, line 323, in _exec Module None, line 12, in doAddPhoto - <PythonScript at /www.ecommerce.de/doAddPhoto> - Line 12 AttributeError: manage_addPhoto When I try it with context.manage_addImage everything works fine. I can't figure out why the above Exception is thrown, the source code of Photo's manage_addPhoto function looks as similar as the manage_addImage function of the Image class (from which Photo is derived) and i have no clue where the pitfall is. Does anybody have an idea or a hint? Help would be appreciate. Thanks in advance Thomas Adams

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numeric formatting
by David H 17 Jul '05

17 Jul '05

Hi List, I will have to format numbers based on country and currency types. I understand the locale module can do this. I've done some googling on this but cant seem to get anything definitive. I've read that the local module is not thread-safe but I do not know how this would impact my Zope app. I do know that I would want to be able to change from one currency format to another depending on which currency conversation the user may want. Really my question is, what approach is recommended for a Zope application to format numbers according to currency type? David

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[ATTN]: CMF and related packages moved to svn.zope.org
by Jens Vagelpohl 17 Jul '05

17 Jul '05

Hi everyone, I just finished migrating the CMF and related projects from cvs.zope.org to svn.zope.org, from CVS to Subversion. All tags and branches have moved, unlike Zope itself there won't be some development using CVS and some using Subversion. These are the packages: - CMF - CMF_Hotfixes - CMF_Extras They packages became new toplevel projects at svn.zope.org, as can be seen here: http://svn.zope.org/ Pending final agreement on the CMF list (or an overriding word from the CMF Pope himself) svn.zope.org will now be the canonical location for CMF sources. They are accessed just like Zope 2.8 and Zope trunk as described here: http://www.zope.org/DevHome/Subversion/ZopeSVNFAQ The only difference is, of course, the last element in the path. Eveerything else works as described in the document linked above. The packages are at... /repos/main/[CMF|CMF_Extras|CMF_Hotfixes] ***To all CMF developers***: Please change your sandboxes and convert them to SVN. If you see any problem please make it known on the CMF list as soon as possible. No data is lost on cvs.zope.org, so if there are show-stoppers we can always switch back to using CVS. Please **do not** commit into cvs.zope.org or svn.zope.org until we have a "yay" or "nay" on which repository we go forward with. ***Next steps***: If we have agreement on using svn.zope.org a couple cleanup tasks need to be done, such as... - "Close off" or "freeze" the CMF projects on cvs.zope.org to either disallow checkins or bring up big fat warnings if someone tries to. Input and ideas on this are welcome, if it was up to me I would use the "commitinfo" file in the CVSROOT to completely prevent updates as the first step. - Change any references to cvs.zope.org in the CMF code to their svn.zope.org equivalents - Change any references to cvs.zope.org on the project web pages, mostly http://www.zope.org/Products/CMF, to point to the svn.zope.org equivalent - Change any download instructions that use CVS to instructions for SVN jens

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How to upload a file and save it in a physical path
by Remy Pinsonnault 17 Jul '05

17 Jul '05

Maybe it is a basic question but how can I upload a file and save it anywhere on the server's hard drive? I know how to upload a file to zope's database but not how to save it locally... Anyone can help please? Thanks in advance Remy

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CMF 1.5.2 Released
by Jens Vagelpohl 17 Jul '05

17 Jul '05

Zope Corporation is pleased to announce the release of version 1.5.2 of the Zope Content Management Framework (CMF). This release marks the latest stable release in the CMF 1.5 series and should be suitable for production use. What is the CMF? The Zope Content Management Framework provides a set of services and content objects useful for building highly dynamic, content-oriented portal sites. As packaged, the CMF generates a site much like the Zope.org site. The CMF is intended to be easily customizable, in terms of both the types of content used and the policies and services it provides. Where do I get it? Download it from http://zope.org/Products/CMF/CMF-1.5.2 Points of interest include: - "Windows ZIP file", http://zope.org/Products/CMF/CMF-1.5.2/CMF-1.5.2.zip - "Unix tar/gzip archive", http://zope.org/Products/CMF/CMF-1.5.2/CMF-1.5.2.tar.gz - "Release notes", http://zope.org/Products/CMF/CMF-1.5.2/README.txt - "Change history", http://zope.org/Products/CMF/CMF-1.5.2/CHANGES.txt - "Installation instructions", http://zope.org/Products/CMF/CMF-1.5.2/INSTALL.txt Where do I go to learn more? The "CMF mailing list":mailto:zope-cmf@zope.org has many participants who are active in supporting the CMF. ...to report bugs? The "CMF Collector":http://zope.org/Collectors/CMF is ths place to report bugs (please search for existing reports of your issue first!) --------------- Jens Vagelpohl jens(a)zetwork.com Zetwork GmbH http://www.zetwork.com/

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