September 1999 - Zope

Re: [Zope] Re: ZopeTime
by John Goerzen 08 Sep '99

08 Sep '99

Excellent, this is one thing that I need! Next one is, where should I have looked in the documnetation to find this? -- John Evan Simpson <evan(a)4-am.com> writes: > Note that you can convert standard epoch time values (such as Confera > "created" and "modified") or well-formatted date/time strings into > DateTime objects by passing them to "_.DateTime()". Then you can apply > any of the zillions of formatting and datetime arithmetic operations to it > easily. For example: > > <dtml-var "_.DateTime(adatestring) + 5" fmt="%m/%d/%y"> > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (To receive general Zope announcements, see: > http://www.zope.org/mailman/listinfo/zope-announce > > For developer-specific issues, zope-dev(a)zope.org - > http://www.zope.org/mailman/listinfo/zope-dev ) > -- John Goerzen Linux, Unix consulting & programming jgoerzen(a)complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ The 193,760th digit of pi is 6.

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Python 1.5.2 on Slackware 4.0
by news 08 Sep '99

08 Sep '99

Has anyone been sucessful in installing Python 1.5.2 on Slackware 4.0? A good part of it runs without any problem, however, some of the key modules do not work. Some have suggested that my Python installed was hosed. I've checked Deja and the web and have not found reference to this problem. Python folks have said it's a glibc version problem. Having some trouble with the time module specifically when I run the following test: /tmp/Python-1.5.2$ python Python 1.5.2 (#3, Sep 8 1999, 17:29:29) [GCC 2.7.2.3] on linux2 Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam >>> import time >>> time.daylight Traceback (innermost last): File "<stdin>", line 1, in ? AttributeError: daylight >>> Here's how & what I installed. Slackware 4 Linux version 2.2.6(gcc version 2.7.2.3) #11 Wed Jul Console: colour VGA+ 80x25 Memory: 30592k/32576k available (956k kernel code, 412k reserved, 568k data, 48k init) CPU: Intel Mobile Pentium MMX stepping 01 Downloaded py152.tgz from ftp.python.org and uncompressed/untarred it into /tmp/Python-1.5.2

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RE: [Zope] The Honest Scoop on Zope
by Terrel Shumway 08 Sep '99

08 Sep '99

From: John Goerzen [mailto:jgoerzen@complete.org] >Well, I've been working with it for some time and am still confused as >to how to do simple things like set variables properly, cast data >types (ie, string to a date, etc.), and why variables sometimes >disappear. Also the syntax is a little strange (I can't figure out >how to embed a quation mark inside a string passed to a function in >dtml-call), so the learning curve is not exactly great, but otherwise, >I really like it. The documentation is rather sparse, which hurts >more than it otherwise would. Perhaps if I knew Python, it would be a >bit better? The Python tutorial may help with things like embedding quotes and "casting" (Python is dynamically typed: casting is a foreign concept). http://www.python.org/doc setting variables in Zope more like lisp than python or perl quickly: <dtml-let var1=expr1 var2=expr2> <dtml-var var1 fmt="date" ...> <dtml-var var2 ...> </dtml-let> or <dtml-with some-complicated-expression> use the generated namespace </dtml-with> I have found http://www.zope.org:18200/Members/Cyberrunner/QuickReference to be invaluable.

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Proper way to set variables
by John Goerzen 08 Sep '99

08 Sep '99

Heh, feels strange to reply to myself, but as I got no replies before, maybe I need to elaborate a bit. The original question is below. My main confusion is just how do I set a variable that is dynamically scoped without having to use dtml-with or dtml-let, both of which require matching closing tags? the REQUEST.set was used, but for some reason, when calling some functions, it would suddenly disappear and an error would result. So I am completely puzzled about it. Thanks, John John Goerzen <jgoerzen(a)complete.org> writes: > Hi, > > I have a method that is called as part of the branches_expr of a tree > tag. (Thanks for the pointer to dtml-return, BTW!) > > I have a problem. I have some parameters to this method that I want > to be optional. I was testing for them with dtml-if, and then calling > REQUEST.set to set them to an appropriate value if they were not passed > in to this DTML method. > > This seemed to work. However, when this was called from within the > tree tag, for some reason, it complains that REQUEST is not set. I have > tried every way I can think of to pass in both REQUEST and _, to no avail. > > My only other way that I know to set these things is with dtml-with, > but since this is only called in some cases, there is a scoping problem; > the closing tag would have to occur after the /dtml-if. So, this is out. > > I guess I have several questions: > > * What's the solution to this particular problem? > > * What's the preferred way to create or set variables in DTML? > > * Why does REQUEST sometimes disappear? > > I understand the search logic just fine (this is nicely explained in > the DTML book). But, it seems to be ignored; why is REQUEST no longer > present, and what can be done to remedy it? > > Thanks, > > John Goerzen > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (To receive general Zope announcements, see: > http://www.zope.org/mailman/listinfo/zope-announce > > For developer-specific issues, zope-dev(a)zope.org - > http://www.zope.org/mailman/listinfo/zope-dev ) > -- John Goerzen Linux, Unix consulting & programming jgoerzen(a)complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ The 11,979,300th prime number is 217,247,021.

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CONNECTION POOLING/CONCURRENT DATABASE CONNECTIONS
by Theodore Patrick 08 Sep '99

08 Sep '99

Question: Can ZOPE handle multiple database connections or connection pooling? Theodore E. Patrick http://www.ishophere.com - Where do you shop?

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RE: [Zope] AttributeError: daylight
by Michel Pelletier 08 Sep '99

08 Sep '99

> -----Original Message----- > From: mikek [mailto:mikek@mtcibs.com] > Sent: Wednesday, September 08, 1999 4:23 PM > To: zope(a)zope.org > Subject: Re: [Zope] AttributeError: daylight > > > OK here's what I get > > Python 1.5.2 (#3, Sep 7 1999, 17:29:29) [GCC 2.7.2.3] on linux2 > Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam > >>> import time > >>> time.daylight > Traceback (innermost last): > File "<stdin>", line 1, in ? > AttributeError: daylight > This is abnormal behavior, and given that no one else has reported this, I lean toward the conclusion that there is something wrong with your Python setup. -Michel > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://www.zope.org/mailman/listinfo/zope > > (To receive general Zope announcements, see: > http://www.zope.org/mailman/listinfo/zope-announce > > For developer-specific issues, zope-dev(a)zope.org - > http://www.zope.org/mailman/listinfo/zope-dev ) >

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RE: Newbie: try this
by Mike Kompar 08 Sep '99

08 Sep '99

OK here's what I get Python 1.5.2 (#3, Sep 7 1999, 17:29:29) [GCC 2.7.2.3] on linux2 Copyright 1991-1995 Stichting Mathematisch Centrum, Amsterdam >>> import time >>> time.daylight Traceback (innermost last): File "<stdin>", line 1, in ? AttributeError: daylight -- Mike Kompar Manager of Client Services IBS a division of Modern Technologies mikek(a)mtcibs.com http://www.mtcibs.com

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RE: [Zope] RE: Two newbie questions
by Paul Everitt 08 Sep '99

08 Sep '99

Michael wrote: > Wow. I had no idea anyone was reading my old posts. I feel so special! Hey, nobody reads my _new_ posts. :^) > But seriously, this has been my personal hobby horse for > quite a while now, but > I've refrained from bugging DC about it (they've been busy). I have no idea what you're referring to...:^) > In any case, ZTables does indeed have the 'hierarchy' > functionality that we > want, but it has yet to be released. A related proposal > called 'Topics' popped > up on the Zope site yesterday: > http://www.zope.org:18200/Members/Amos/TopicProposal , which > seems to apply > ZTables Hierarchies to ZCatalog albeit with a somewhat > different interface. As mentioned in a private note to Michael just now: """ I don't think it's the same machinery. In fact, the machinery has not been created yet. It's just a statement of what we'll build this week and next. Hierarchies are keyed very tightly to the machinery of ZTables, where the data itself are contained inside the ZTable object. Hierarchies leverage this fact to provide folderish, pseudo-objects based on the tabular representation of data. There are probably many cases where people don't want to be constrained into a flat, rigid schema for all their data, as is the case with ZTables. """ > This is EXACTLY what I've been waiting for! I knew you guys > would get around to > it eventually. With the minor quibble that it would be nice > to have logical > operators besides 'OR' to chain queries within a Topic, this > proposal seems > perfect. Propose away! Be prepared to be quite specific about the behavior and the interface. > The one thing that is unclear is whether you can set > properties on a Topic, or > if you would have to place a Document with properties on it > into the Topic. Don't worry, Topics will be (I think) folderish objects that can have properties. More importantly, they can contain things like DTML methods, allowing you to spew multiple representions of data in that topic, such as RDF, RSS, or CDF. > BTW, as this is so useful in contexts other than > news/informational, I propose > changing the name from Topics to 'Category' or 'ZCategory'. I think the idea of Topic better represents the idea that it has its own identity away from the objects that might have some particulary piece of metadata. --Paul Paul Everitt Digital Creations paul(a)digicool.com 540.371.6909 ----------------------------------------- The Open Source Zope application server http://www.zope.org/

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multiple virtual hosts / single database using ZServer?
by bruce＠perens.com 08 Sep '99

08 Sep '99

A while back we figured out how to do multiple virtual hosts using a single Zope database under Apache. Does anyone have a clue where ZServer would be modified to do the same thing, in the same way? I looked it over quickly, but don't know where to start. Thanks Bruce Perens

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Re: [Zope] The Honest Scoop on Zope
by John Goerzen 08 Sep '99

08 Sep '99

"Phil Harris" <phil(a)philh.org> writes: > > interactive stuff. > > I can almost guarantee that you will be up and running in no time. Well, I've been working with it for some time and am still confused as to how to do simple things like set variables properly, cast data types (ie, string to a date, etc.), and why variables sometimes disappear. Also the syntax is a little strange (I can't figure out how to embed a quation mark inside a string passed to a function in dtml-call), so the learning curve is not exactly great, but otherwise, I really like it. The documentation is rather sparse, which hurts more than it otherwise would. Perhaps if I knew Python, it would be a bit better? This is from someone that has extensive experience with programming and does Perl and CGI for a living, so... -- John Goerzen Linux, Unix consulting & programming jgoerzen(a)complete.org | Developer, Debian GNU/Linux (Free powerful OS upgrade) www.debian.org | ----------------------------------------------------------------------------+ The 520,865th digit of pi is 3.

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