December 2000 - Zope

Problems with adding tutorial
by Bob Sidebotham 13 Dec '00

13 Dec '00

(I submitted this as a bug report, and then I later discovered this list. So perhaps it's overkill to send this here, too. Normally I would have sent it here first, then filed a bug report if it was obvious that it was a new bug. So I apologize for the redundancy). When I click "ADD" to add a zope tutorial, I get a dialog box from my browser that says "unable to locate server localhost:8080". If I click anything else, then the server seems to restart (I'm running with z2.py -D). I don't get any error messages, other than the server restart messages. If I do two ADD's in a row (i.e. attempt to add the tutorial a second time), then the server terminates after restarting once. I did see the messages regarding creating a non-admin user and authenticating as that user (by first terminating the zope process). I did all that. Any ideas? I'm a complete newbie, so it'd be helpful to be able to run through the tutorial. Please note that I'm using the latest zope tarball: Linux Mandrake 6.0, zope2.3.0a1, Python 2.0, Communicator 4.6. Thanks, Bob Sidebotham bob_sidebotham(a)yahoo.com __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

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Advanced Transactions:
by Paolo Quaglia 13 Dec '00

13 Dec '00

Hi All, I'm building a high transaction traffic db application using Zope. I used for this tests two DB: MSAccess 97 and SQL Server 7.0 with the ZODBCDA product I have made some tests and I have found this: The test is: I have two DTML document called Test1 and Test2 I have 2 ZSQL Queries called Select1 and Select2 I have an external method (which id is Wait) that call the time.sleep(10) #it sleeps 10 seconds Test1 calls Select1 and then the Wait() Test2 calls Select2 First transaction test: Select1 and Select2 queries are equal:= select * from Users where name='example' I call test1 in a browser and immediately after test2 in another Browser. RESULT: Test2 wait the end of test1 before the page was displayed Second Transaction test: Select1 = select * from Users where name='example' Select2 = select * from Products where id='example' I call test1 in a browser and immediately after test2 in another Browser. RESULT: Test2 wait the end of test1 before the page was displayed!! Third Transaction test: Select1 = select * from Users where name='example' on the Access Connection Select2 = select * from Products where id='example' on the SQL sever Connection I call test1 in a browser and immediately after test2 in another Browser. RESULT: Test2 wait the end of test1 before the page was displayed!!!!!!!!!! :( Now Summarizing: I think the Zope transaction Server works in every Zope operation. This is good, but it seems that it uses a bad locking method. I mean when I read a DB (usually a select) I wouldn't to lock the entire DB and I would let the other DB session free to call select statements!! Am I right?? Or I do some mistake?? Thanks Very much for your cooperation Paolo Quaglia Information Technology Coordinator Sitek S.p.A. paolo(a)sitek.it

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Gopher from Zope
by Dario Lopez-K�sten 13 Dec '00

13 Dec '00

I wanna serve gopher:// from Zope :-) Is it possible? Don't need answers like "but gopher is old, ugly, etc", "we will loose all fomatting, etc", etc. Thanks, /dario :)) read all about it: gopher://gopher.heatdeath.org/00/the%20gopher%20manifesto.txt - -------------------------------------------------------------------- Dario Lopez-Kästen Systems Developer Chalmers Univ. of Technology dario(a)ita.chalmers.se ICQ will yield no hits IT Systems & Services

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SiteAccess, SSL + SiteRootBASE
by jeremie＠jarna.com 13 Dec '00

13 Dec '00

Hi everyone, I am using Apache+Zserver+SSL (see How-to from TJ. Mannos), and it works fine. The thing is that I have to set manually a SiteRoot Object in a ssl Folder to make all this work and I would like to do it dynamically! So, when I create my SiteRoot object and enter "https://www.fightclub.com" as base, the page also displays a comment saying: "If Base is not set, the SiteRoot will first attempt to acquire SiteRootBASE and then search the REQUEST for it. The same holds for Path and SiteRootPATH." So I was thinking that maybe I could set SiteRootBASE dynamically and make it work the same. Unfortunately, I made some attempts and it does not seem to work. Does anybody have any idea of how to make it work? Thanx, jeremie

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Changing a Zclass meta type doesn't work
by Ivan Cornell 13 Dec '00

13 Dec '00

Hi all, I've finally tracked down the bug that was preventing me from using copy/paste/rename with my ZClasses (_verifyObjectPaste exceptions). It's caused by the fact that I changed their meta type names after creation to allow them to be stored easily in a tokens attribute (I removed the spaces). The all_meta_types method used by verifyObjectPaste appears to return the original meta_type of a ZClass, even if you rename it, and so the comparison fails. This is because all_meta_types actually uses the 'add list name' of the factory, and changing this appears to work. I think it would good if the latter's importance it is hilighted - that it isn't just the text that appears in the 'Add Product List'. Regards, Ivan PS Yes, the above took 3 hours.

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Re: [Zope] SiteAccess, SSL + SiteRootBASE
by jeremie＠jarna.com 13 Dec '00

13 Dec '00

I am sorry, it can seem stupid, but what do you mean by "access" rule? Thanx, jeremie -----Original Message----- From: emf <mindlace(a)digicool.com> Sent: 12/12/00 04:38 PM To: jeremie(a)jarna.com Cc: zope(a)zope.org Subject: Re: [Zope] SiteAccess, SSL + SiteRootBASE jeremie(a)jarna.com wrote: > Hi everyone, > > I am using Apache+Zserver+SSL (see How-to from TJ. Mannos), and it works > fine. The thing is that I have to set manually a SiteRoot Object in a > ssl Folder to make all this work and I would like to do it dynamically! > So, when I create my SiteRoot object and enter > "https://www.fightclub.com" as base, the page also displays a comment > saying: > "If Base is not set, the SiteRoot will first attempt to acquire > SiteRootBASE and then search the REQUEST for it. The same holds for Path > and SiteRootPATH." > > So I was thinking that maybe I could set SiteRootBASE dynamically and > make it work the same. Unfortunately, I made some attempts and it does > not seem to work. > > Does anybody have any idea of how to make it work? I do this in the access rule. <dtml-if "condition"> <dtml-call "REQUEST.set('SiteRootBASE','some-value')"> </dtml-if> ~ethan _______________________________________________ Zope maillist - Zope(a)zope.org http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )

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Re: [Zope] PIL problem
by Jason Byron 13 Dec '00

13 Dec '00

--- Luc Tonin <ltonin(a)lw.mth.tv> wrote: > well > i m still trying to insert some text in a gif image > using PIL > but what should i do??? using da PSDraw class?? > does anybody have an id ?? > thx by advance > I recently got that working for me by doing a few tricky things: created a directory in Extensions called "BDF" and put the font files (courR14.pil an courR14.pbm) in there. (make sure that dir is zope readable) then add ImageFont to your PIL init script. (kind of like the file replacement in ZPhoto does) then in your external method and the import statement for the fonts. (in mine I did "import PIL.ImageFont") and then I experimented around and got the following code to setup the font stuff: wd = os.environ['PYTHONHOME'] wd_ext = wd + '/Extensions' wd_ext_bdf = wd_ext + '/BDF' sys.path[:0] = [wd_ext] # prepend the font path sys.path[:0] = [wd_ext_bdf] font = PIL.ImageFont.load_path("courR14.pil") I put this in the global part of the external method and the rest of the methods could use fonts. (for some reason I couldn't get any other font to work. courR14 is the default in the PIL library. to change fonts you can simply save another font as the courR14 name) After that you can use fonts in your methods with: draw = PIL.ImageDraw.Draw(image) draw.text((x,y),"text to print") Hope this helps. I will *hopefully* be releasing a zope product in the near future that uses PIL fonts so you can use it as an example. Right now I'm ironing it out a little, but keep an eye out for it. I think I'm going to call it "NetMap" Jason __________________________________________________ Do You Yahoo!? Yahoo! Shopping - Thousands of Stores. Millions of Products. http://shopping.yahoo.com/

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ZWiki hierarchy seems to be broken
by Timothy Grant 13 Dec '00

13 Dec '00

Hi, I just put up a ZWiki for some internal development projects we are running. Everything went beautifully smoothly. I created it using the hierarchy2 property. However, I seem to have done something somewhere that is preventing the hierarchy headers from showing up on many of the pages. It shows on the first page, and it still shows on all the help pages, but it has disappeared from the pages that I have been adding (They were there for a while). How do I put the hierarchy headers back? Thanks -- Stand Fast, tjg. Timothy Grant tjg(a)exceptionalminds.com Red Hat Certified Engineer www.exceptionalminds.com Avalon Technology Group, Inc. (503) 246-3630 >>>>>>>>>>>>>Linux, because rebooting is *NOT* normal<<<<<<<<< >>>>This machine was last rebooted: 14 days 4:02 hours ago<<

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Re: [Zope] LocalFS question
by Dieter Maurer 12 Dec '00

12 Dec '00

Leichtman, David J writes: > However, if you try to do the same thing with a LocalFS object, i.e. > <dtml-var "localfs_object.localfs_subobject.bobobase_modification_time">, > you get the error NameError: localfs_subobject > This leads me to believe that LocalFS subobjects are not really objects. But > then how does the Zope management interface deal with them, and how can I? They are real objects but they behave differently from the standard Zope objects. You can use <dtml-with "localfs_object['localfs_subobject']"> <dtml-var bobobase_modification_time> </dtml-with> At least the "Local File System" object does not expose its children via "getattr" (which is required for the usual "." operator to work) but only via "[...]". This probably is a bug. Dieter

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New version of book uploaded
by Michel Pelletier 12 Dec '00

12 Dec '00

Greetings, Read this carefully, you may end up with a free, signed copy of the Zope book. That's right, Amos and I have just gotten done adding all kinds of new stuff to the book, and in particular we made quite a few changed from "Python Method" to "Python Script". This was a task more subtle than a simple search and replace, many changes needed to be done. Also, sometime really soon, we will be making a 2.3 alpha release. This will be the first release of Zope that will be "in sync" with the book. Lots of milestones to reach there. So, instead of reading the book over again for the N to the Nth time in preparation, we have decided to run a fun little contest. The *first* person to point out an incorrect usage of the term "method" when it should be "script" will get a free copy of the Zope book signed by Amos and myself. If you are the second person to point out the same error, sorry, you're out of luck, but *keep reading* because you may find another! For each unique "method" error found in the book, someone will get a free signed copy! And don't just stick to Chapter 8 (although that's probably the best place to start!) because Python Meth...er Scripts are used all over the book. To keep everything fair, you must report your findings to the community reviewer list at zope-book(a)zope.org. They will be the "judges", and will decide who does and who does and does not get a book. Here are some sample right and wrong sentences to give you an idea, just because a sentence contains the word "method", doesn't make it wrong: "DTML Methods are smelly." (Right) "By using DTML, Python, Perl or other kinds of methods, you can script the web." (Wrong) "Python Methods rock!" (Wrong) "You can call *fooBar* through the web like any other kind of method". (Wrong, should be "object", tricky! The judgest make the call on these kinds of errors) "The Python code in your External Method must be in the Foo module." (Right, External Methods still exist) Get the idea? The O'Reilly community reviewers (the "judges") and employees of Digital Creations are not elligible in this contest, sorry guys, you already get free books. ;) So without further a-do here's the URL. Have fun! http://www.zope.org/Members/michel/ZB/ -Michel

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