August 2000 - Zope - Zope lists

Re: [Zope] Using crontab instead of rc.d
by Stephan Goeldi 25 Aug '00

25 Aug '00

>5 * * * * root ./start > >This would start the script every five minutes. Now how do I check if the >script is running after it's been started and if it wasn't to restart it >again. Why don't you write a shell script which 1. starts the ./stop script, and 2. starts the ./start script every 5 minutes? So you don't have to check if Zope runs. It's like a restart. -goe- ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com

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speeding up dtml-tree
by Clinton Roy 25 Aug '00

25 Aug '00

hello folks i'm using the dtml-tree tag and generating it's contents via external methods. Unfortunately child lookups are quite slow, as well as the icon choosing machinery; is there any way to cache the tree node objects that my external method creates? thanks for any help. -- Clinton Roy

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Zope product to build meta-tags?
by Chris Beaumont 24 Aug '00

24 Aug '00

Are there any Zope products that automate the meta-tag process for HTML documents? Thanks Chris Beaumont cbeaumon(a)msri.org

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Microsoft SQL Server Access under Linux?
by Spicklemire, Jerry 24 Aug '00

24 Aug '00

Darin asked: > Is it possible to access an ODBC data source through Zope running under Linux? I'm getting ready to test such a solution this week. First, we'll try : ODBC Socket Server http://odbc.linuxave.net/ and the accompanying Python Client. This will require some coding, and wrapping the Python Client as an External Method. ODBC Socket Server isn't the most generic approach I've seen, but it is about as simple as such stuff can get. If that one doesn't pan out, it's on to : SQLRelay http://www.firstworks.com/site/pages/html/frames.html which is more generic, and even has a Zope Database Adapter. My fallback plan, assuming insurmountable snags with the first two attempts is: FreeTDS http://www.freetds.org/ which is SQL Server specific, and so the least generic of all. Then, if all else fails, we'll have to look at the OpenLink (for $) stuff. OpenLink http://www.openlinksw.com/ I'll let you know how it goes. Later, Jerry S..

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Re. Linux and ODBC
by Spicklemire, Jerry 24 Aug '00

24 Aug '00

Hi Folks, Just to follow up on the plan to test ODBC Socket Server. We now have a working copy resident on a NT test system here, which enables us to ship queries across the LAN from Unix / Linux land to hit against Windows Native (ODBC) data stores, and get back datasets as XML. So far, it works like a champ, and it comes with a handy little Python demo client app. All I need to do now is wrap an enhanced client process as an external method, and voila, a whole bunch of sticky wickets will get smoothed out! you can get it at: http://odbc.linuxave.net/ More Later, Jerry S..

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RE: [Zope] What does context.registerBaseClass() do ???
by Chris McDonough 24 Aug '00

24 Aug '00

This should be used in the initialize() routine of your product. It initializes the class passed in so it may be use as a base class for ZClasses in your Zope instance. It takes a single class object as an argument. An example __init__.py: import Foo def initialize(context): context.registerBaseClass(Foo) > -----Original Message----- > From: Daniel Rusch [mailto:drusch@globalcrossing.com] > Sent: Thursday, August 24, 2000 4:56 PM > To: zope(a)zope.org > Subject: [Zope] What does context.registerBaseClass() do ??? > > > I have searched the FM's and I cannot find anything on > context.registerBaseClass(). Can anyone explain what this does for me > and what the syntax of the argument list should be????? > > Thanks, > > Dan > > _______________________________________________ > 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] Not like ASP complaint - any good answers
by Chris McDonough 24 Aug '00

24 Aug '00

Sean, This is mostly on purpose. It will probably only get more like this in time to come. There's a good article on this topic (although it deals with JSP as opposed to ASP) at http://www.servlets.com/soapbox/problems-jsp.html > -----Original Message----- > From: Sean McGrath [mailto:sean@digitome.com] > Sent: Thursday, August 24, 2000 4:29 PM > To: zope(a)zope.org > Subject: [Zope] Not like ASP complaint - any good answers > > > All, > > I have had a number of e-mails from developers > using Microsoft ASP in recent days. The paraphrased consensus > in the e-mails is that the external > methods/python methods approach to mixing markup > with code in Zope is more clunky than in ASP where > you can intermingle the two at will. > > Has anyone written anything on this topic I could > point them to? > > regards, > Sean > > > > http://www.pyxie.org - an Open Source XML Processing library > for Python > > > _______________________________________________ > 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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What does context.registerBaseClass() do ???
by Daniel Rusch 24 Aug '00

24 Aug '00

I have searched the FM's and I cannot find anything on context.registerBaseClass(). Can anyone explain what this does for me and what the syntax of the argument list should be????? Thanks, Dan

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Re: [Zope] Acquisition, Not! How?
by Dieter Maurer 24 Aug '00

24 Aug '00

=?ISO-8859-1?Q?J=FAlio?= Dinis Silva writes: > I know this sound strange but is there a way to, > during execution of a dtml method, when a with tag is used one > force acquisition not to be used? It is possible -- with an external method. But probably, you should not do it. It may have strange side effects. Zope uses acquisition for access validation. If you cut the acquisition chain, Zope may no longer find the acl_user necessary to determine the identity of the current user and its roles. You may get unexplanable Unauthorized exceptions. Okay, you may try it yourself: the external method: def getBase(obj): return getattr(obj,'aq_base',obj) it returns "obj" with all acquisition context removed. As indicated above, I would not use it, but instead use a test function: def hasattr_base(obj,attribute): base= getBase(obj) return hasattr(base,attribute) I would use this to test in DTML whether a object "O" has itself at attribute "a" which is not acquired and raise an exception, if not. Dieter

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Re: [Zope] strange login behaviour
by Dieter Maurer 24 Aug '00

24 Aug '00

Didier Georgieff writes: > I have really simple login wich is a link to a Method "login" wich > comprise > > ....... REDIRECT for login > <dtml-call "RESPONSE.redirect(baseURL)"> > > and 'login' method has NO autorizations for anonymous. > > It redirects me on the right "baseURL" page, but the "baseURL" > inludes an "info" Document with > > <dtml-var "AUTHENTICATED_USER.getUserName()"> > <dtml-in "AUTHENTICATED_USER.getRoles()"> > > who shows ONLY anonymous after the first login.. > > IF I do a second login (exactly the same) then it works fine and i > got the right Names and Roles.. I am not sure... ... but it might be possible that the browser sets a cookie only after the redirect. I saw a comment in GUF (Generic User Folder, a Zope product for cookie base authentication) about the necessity of a double indirection because cookies might not be set during authentication. This would point into the above direction. I must admit, however, that I did not really understand the GUF comment. Dieter

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