May 1999 - Zope - Zope lists

getting  sections to 'render' from an external method...
by Tony McDonald 21 May '99

21 May '99

Hi all, I have an external method that creates different HTML dependent on some variables that are sent to it eg if given the values, content = 'zope is cool' and tagtype='item', the expression  returns <ul> <li>zope is cool </ul> If I change the content to something like 'For the following exercise, use the conferencing system. ', tagtype='text' I want the  DTML to be left alone by the make_html external method so that Zope can get given it and then do all its good stuff. At the moment, the  is just showing up as HTML comments in the output. Do I need to do some major magic at the external method? thanks for any thoughts... tone. ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

2 1

zope2 startup problem
by Tony McDonald 21 May '99

21 May '99

Hi, I've compiled up Python 1.5.2 on our Solaris box, (./configure --with-threads) Then (from the lastest CVS) % python wo_pcgi.py (lots of stuff). then 80 % python z2.py -2 -w 9900 zinit: Wed May 19 16:32:49 1999: Houston, we have forked zinit: Wed May 19 16:32:49 1999: Houston, we have forked zinit: Wed May 19 16:32:49 1999: Hi, I just forked off a kid: 5002 Traceback (innermost last): File "z2.py", line 284, in ? exec "import "+MODULE in {} File "<string>", line 1, in ? File "/home/nnle/zope/Zope2/Zope/lib/python/Main.py", line 100, in ? from BoboPOS import SimpleDB, TJar, SingleThreadedTransaction File "/home/nnle/zope/Zope2/Zope/lib/python/BoboPOS/__init__.py", line 93, in ? import ExtensionClass, cStringIO ImportError: ld.so.1: /usr/local/bin/python: fatal: relocation error: file /home/nnle/zope/Zope2/Zope/lib/python/ExtensionClass.so: symbol PyImport_ImportModule: referenced symbol not found zinit: Wed May 19 16:32:49 1999: Aiieee! 5002 exited with error code: 256 Is there anywhere I can look to batter this bug down? Tone ps *love* the descriptions! ('Houston, we have forked' and ' Aiieee!'). ------ Dr Tony McDonald, FMCC, Networked Learning Environments Project The Medical School, Newcastle University Tel: +44 191 222 5888 Fingerprint: 3450 876D FA41 B926 D3DD F8C3 F2D0 C3B9 8B38 18A2

3 4

RE: [Zope] zope transactions
by Jay, Dylan 21 May '99

21 May '99

Next question. How do I compile the beta release under windows? > -----Original Message----- > From: Paul Everitt [mailto:Paul@digicool.com] > Sent: Thursday, May 20, 1999 20:49 > To: Jay, Dylan; 'Jim Fulton' > Cc: 'zope(a)zope.org' > Subject: RE: [Zope] zope transactions > > > > Just to clarify. ZServer lets you publish to HTTP, FTP, PCGI, FastCGI > (etc.) *simultaneously*. Thus ZServer still integrates with Apache, > just in a concurrent, multi-threaded way. The publishers in > Zope1 were > not concurrent. > > If you want to use the database by itself sans an IP server, that also > is multithreaded. > > In short, Zope2 does what you're asking for. > > --Paul > > > -----Original Message----- > > From: Jay, Dylan [mailto:djay@lucent.com] > > Sent: Thursday, May 20, 1999 12:04 AM > > To: 'Jim Fulton'; Jay, Dylan > > Cc: 'zope(a)zope.org' > > Subject: RE: [Zope] zope transactions > > > > > > I've been reading the Zope 2.0 notes. It states that Zope 2.0 is > > multi-threaded only if used with ZServer. Will that always be > > the case or is > > that just a temporary limitation? > > > > > -----Original Message----- > > > From: Jim Fulton [mailto:jim@digicool.com] > > > Sent: Wednesday, May 19, 1999 23:12 > > > To: Jay, Dylan > > > Cc: 'zope(a)zope.org' > > > Subject: Re: [Zope] zope transactions > > > > > > > > > "Jay, Dylan" wrote: > > > > > > > > Would I be right in saying that when zope is executing an > > > external method > > > > all other requests are blocked? What about sql transactions? > > > > > > Zope 1.x is single threaded. Zope 2.0, which will be > > > releases in alpha > > > later today is multi-threaded. Note that extension modules that > > > have operations that take a long time (e.g. database interfaces) > > > need to take certain measures (releasing Python's global > > > interpreter lock) > > > to avoid blocking other threads. > > > > > > > My site seems to be experiencing some long lags in getting > > > a page. Is there > > > > anyway to improve this? > > > > > > Zope 2 should help alot. > > > > > > Jim > > > > > > -- > > > Jim Fulton mailto:jim@digicool.com Python > > Powered! > > > Technical Director (888) 344-4332 > http://www.python.org > > Digital Creations http://www.digicool.com http://www.zope.org > > Under US Code Title 47, Sec.227(b)(1)(C), Sec.227(a)(2)(B) This email > address may not be added to any commercial mail list with out my > permission. Violation of my privacy with advertising or SPAM will > result in a suit for a MINIMUM of $500 damages/incident, $1500 for > repeats. > _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

1 0

Re: [Zope] German to English: "Zope Zopen Zource Zoftware"
by .Oliver_Thuns. 20 May '99

20 May '99

On Thu, 20 May 1999 06:21:25 -0400, Robert O'Connor wrote: >In Ernst: Outward Zope presents itself as Web server (or GCI [...] >plus/minus a few GCI SKRIPTEN. Since Zope's are abilities in the autsch! >As ZOPE continues to gain a world wide presence, This translator >can be used to translate ZDP - Zope Documentation to other >languages. (Not perfect, but understandable...) It's awful. Please, don't publish a bablefish translated German docu. ;-) -- I'm busily ignoring some thousand of implications I have determined to be irrelevant.

1 0

Zope and Relational Data
by tgregory＠rocketmail.com 20 May '99

20 May '99

I'm new to Zope so I'm trying to figure how to best use the system. I have a SQL database which stores customers and data related to them. I would like to provide a web interface to manage these customers. Customers may be queried through direct SQL commands, but any form of modification will be done through an existing API. Also, customers will be modified from many different sources other than the web interface. It seems that creating persistent Zope objects to model these customers would be redundant/hazardous. But, I would like to exploit the strengths of Zope by creating semi-transient objects to represents customers. What I mean by semi-transient: several requests (form submissions) may be made against a customer account within a short time period. During this time, it would be ideal if Zope could maintain my customer object so that I didn't have to go back to SQL to recreate (and populate) the object each time a request was made. But, at some point the customer object should be deleted so as not to take up space within the Zope DB permanently. In a general sense it seems I am asking: What is the general technique for manipulating existing relational data (as objects) within the Zope framework? ZClasses? Just external objects (scratching the OO)? I have this sneaky feeling this problem has been solved many times already. Any suggestions? Thanks, Trey Gregory

1 0

RE: [Zope] UserDb extensions
by Rob Page 20 May '99

20 May '99

Hi Ross: > I've already sent a note to the DC guys about this, but > they're all busy > having fun at the Expo, Not me... <sniff><sniff>... I'm stuck here answering phones :^) > so I thoungt I'd let the rest of you know, as > well. I'v been using the USerDb unsupported product, and > like it. However, > I'v been bothered by seeing my users cleartext passwords in > the db, so I > added crypt hashed storage to the UserDb product. This will > allow the use > of unix 'passwd' style passwords (also used by apache for > .htpasswd files) > in the database. It also gives a modicum of security if you > db backend > is on a different machine from the Zope install, so the > passwords don't > travel around in the clear in the SQL queries. Absolutely, yeah! In fact, due to our recent and thorough exposure to LDAP I forsee a day, in the not-too-distant future, when all user folderish stuff will let you, depending on underlying support, hash passwords with nothing, crypt, MD5, or SHA as a config parameter of the user folder. --Rob

1 0

RE: [Zope] forbid to render Objects
by Jeffrey Shell 20 May '99

20 May '99

Instead of doing #var on the image id, try the following:: <BODY BACKGROUND=""...> Using #var on an image object in DTML returns the <IMG SRC tag. Most of the time this is desired behavior as it's a good shortcut. But you can also address images like you would in a regular filebased system. You can do BACKGROUND="my_back", or even BACKGROUND="/my_back". Using the absolute_url method can be desirable on images for caching purposes. (since it's the absolute URL to the image object. With acquisition, it's very possible for the following requests to return the same thing:: GET http://localhost:9673/myback ... GET http://localhost:9673/folder1/myback ... ). absolute_url() gets around this problem. -----Original Message----- From: mitaco(a)gmx.net [mailto:mitaco@gmx.net] Sent: Wednesday, May 19, 1999 10:11 AM To: zope(a)zope.org Subject: [Zope] forbid to render Objects hi, i test this great Zope at the moment, and there is a littel prob. I want a special background-image. So i put this image into the ZODB (as Image -> Add) and change my standard-Header into : <HTML><TITLE>...</TITLE><BODY Background=" and i get : <HTML><TITLE>...</TITLE><BODY background="<img src="http://localhost:9673/my_back" width="2200" height="2" alt="Background">"> so, i can also write a python-method, but why ? Greetings, Mike _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

1 0

RE: [Zope] NULL columns
by Jeffrey Shell 20 May '99

20 May '99

You don't need to use the expr syntax. If you do::  the test fails on both NULL and Blank values. Note that it also fails on 0 (zero) since that's also an untrue expression, so there you might want to use an expression. NULL values are turned into "MissingValue" objects. I can't remember much offhand about the internals of MissingValue, but I do know that it allows safely the ability to do most any operator on it and it won't raise an error like the None object will. -----Original Message----- From: Jeff Nielsen [mailto:jeffniel@ix.netcom.com] Sent: Wednesday, May 19, 1999 1:45 AM To: Zope Subject: [Zope] NULL columns How do I test if a variable queried from a database (MS SQL Server) is NULL or blank? For the blank, I can use , and it works fine. However, this test fails for NULL (It branches true when it should branch false...) _______________________________________________ Zope maillist - Zope(a)zope.org http://www.zope.org/mailman/listinfo/zope (For developer-specific issues, use the companion list, zope-dev(a)zope.org - http://www.zope.org/mailman/listinfo/zope-dev )

1 0

Re: [Zope] FYI: News from the front
by Tom Deprez 20 May '99

20 May '99

I wish all good luck at the Linux Expo!

1 0

[Fwd: [Zope] another ?], can someone help me with this
by Chad M. Townsend 20 May '99

20 May '99

1 0