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RE: [Zope] zope transactions
by Jay, Dylan 20 May '99

20 May '99

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. >

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Customizing management screens for different users/roles
by Itai Tavor 20 May '99

20 May '99

Hi, I need to let users edit parts of a site, and I want to use the management interface rather than write a 'dumbed down' interface for them. But I don't want these users to see anything they are not supposed to use or know. First, I don't want users to be able to access foo/manage, but only foo/manage_main. But if I add permission to access the management interface to a user, then foo/manage is accessible. Second, if a user does not have permission to change security for an object, I want the Security tab not to appear at all. Also, I don't want the Help tab to appear. Is it possible to control what  creates? Thanks Itai Tavor -- Itai Tavor -- "Je sautille, donc je suis." -- itavor(a)vic.bigpond.net.au -- - Kermit the Frog -- -- -- -- "Every day, once a day, give yourself a present" - Dale Cooper --

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Re: [Zope] FYI: News from the front
by Christopher Petrilli 20 May '99

20 May '99

> Jeffrey, Michel, Ken, and Chris come down tomorrow. Everyone's done a > great job on getting the software in good shape, compelling demos, good > literature to hand out, etc. Michel and Chris took a gargantuan dataset > from Amos (the RPM database as RDF) and uploaded it into a Z Table, just > to show off. The little one had 13Mb and 3,000 records, and full-text > searches took under a second. I'll be interested to see how the 200 Mb > version does! Just to clarify, it's WAY under 1 second, and the actual search time is more like 1/10th of a second, if that. It's one of those things that is impossible to benchmark through the web because of the overhead. We'll work on some benchmarks once the full 200Mb RPM database is in... Chris -- Christopher Petrilli Digital Creations petrilli(a)digicool.com

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customizing #tree tag
by Oleg Machulski 20 May '99

20 May '99

Hello. It is clear how to create tree hierarchies, based on zope folders structure, but I could not find examples of displaying as tree structures, which are external to Zope. For example let us have a relational table LIST_NODES with the following columns: (ID_SELF:INTEGER , ID_PARENT:INTEGER , NAME_SELF:VARCHAR) it is very simple to write SQL methods for retrieving set of children of current node, but syntax for writing "expr", "brances", etc. methods is unclear. Could You please refer me to some example of displaying custom objects hierarchy with the #tree tag. -- Best regards Oleg Machulski ---------------------------------------------------- http://www.geocities.com/SiliconValley/Network/7671/ mailto:oleg_machulski@geocities.com

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FYI: News from the front
by Paul Everitt 20 May '99

20 May '99

Here at the hotel in Raleigh. Just dialed in to get my blast of Zope messages. I propose that no one send email while I'm on the road :^) Jim, Brian, and I came down today and setup the booth, then did a quick demo for Hadar when he showed. Everything worked awfully well. The portal toolkit demo out to go over very, very well. It's exciting stuff. The PR folks have lined up four interviews so we out to be pretty busy. We're just across from Penguin Computing's booth and helped the guy unpack their refrigerator-sized, >$100k, 8 processor Xeon behemoth. I'm going to be him to let us run Zope on the monster sometime during the show :^) Jeffrey, Michel, Ken, and Chris come down tomorrow. Everyone's done a great job on getting the software in good shape, compelling demos, good literature to hand out, etc. Michel and Chris took a gargantuan dataset from Amos (the RPM database as RDF) and uploaded it into a Z Table, just to show off. The little one had 13Mb and 3,000 records, and full-text searches took under a second. I'll be interested to see how the 200 Mb version does! Anyway, that's it for now. Expo starts tomorrow. 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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RE: [Zope] Catalog in Zope 2.0?
by Paul Everitt 20 May '99

20 May '99

Hi Kevin. The stuff in the portal toolkit (catalog and membership) will probably make their way out in June. In the meantime I hope to get our presentations online next week so people can get an idea of what it is about. --Paul > -----Original Message----- > From: Kevin Dangoor [mailto:kid@kendermedia.com] > Sent: Wednesday, May 19, 1999 5:42 PM > To: zope(a)zope.org > Subject: [Zope] Catalog in Zope 2.0? > > > Hi, > > I was just reading the changes info for Zope 2.0, and I didn't see > any mention of the Catalog feature. Is this still planned for 2.0? > > Thanks, > Kevin > > > _______________________________________________ > 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 ) >

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another ?
by Chad M. Townsend 20 May '99

20 May '99

/us/states/fl/cities/miami/weather ok, 'us' is a folder 'states' is a Z SQL Method that's only argument is state.string to allow for 'direct traversal' 'cities' is a Z SQL Method that's only argument is city.string to allow for 'direct traversal' 'weather' is a DTML Document in the 'weather' document i want to be able to access the 'states' value and 'cities' value how do I do that?  ????? I know that's wrong. Thanks for your help, I'm being crunched for a big project. -chad

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RE: COMObject Thoughts
by Amos Latteier 19 May '99

19 May '99

Toby Dickerson: > Thanks for posting the COMObject product Amos.... very > interesting reading. I have some first impressions that I > thought I would share: > > 1) I suspect there is a problem with the current > implementation on multi-threaded servers. ... Thanks for this warning. I'm definitely out of my league here. These are the sort of issues I was hoping others would be able to provide more guidance on. I don't really understand the relative trade off of not caching versus using free-threading... > 2) Providing uncontrolled access to COM objects leaves a very > big security hole in the server. This could be partly avoided > if COMObject used the IObjectSafety com interface to restrict > how the object can be used. I'm not sure how useful such a > product would be... any thoughts? I agree about the security problem. I'm not familiar with the IObjectSafety interface, however. I gotta get that Python/COM book ;-) My basic idea was the COMObject would be similar to a database connection object. You probably wouldn't manipulate it directly, and probably only Managers could access it. You would then create DTML Methods with proxy roles of Manager to do some specific thing to the COMObject. Then you'd call those DTML Methods in your normal old DTML. Maybe there should even be a COMMethod object to do this kind of work... Does any one know how ASP handles these sort of issues? I must confess, I've never used it. ;-) Thanks for your thoughts! -Amos

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Using supplied demo Gadfly database
by Olivier Berger 19 May '99

19 May '99

Hi I'm total newbie to zope, and would like to practice with a simple Gadfly database connected to an interactive website... I found the demo (empty) database supplied with Zope but couldn't get it to work... even a simple select * from __table_names__ won't work... Tried to import an allready working gadfly base created with Python (gfplus) next to the demo directory, but neuther did it work.... Nor could I find any help in the tutorial/quickstart documents.... Anybody can give me a clue on what went wrong ? Or any example to download ? Thanx in advance. -- Olivier Berger - olberger(a)club-internet.fr - membre de PARINUX Paris Linux User Group : http://www.parinux.org Vive Linux (www.linux.org) - Vive python (www.python.org)

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Catalog in Zope 2.0?
by Kevin Dangoor 19 May '99

19 May '99

Hi, I was just reading the changes info for Zope 2.0, and I didn't see any mention of the Catalog feature. Is this still planned for 2.0? Thanks, Kevin

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