March 2003 - Zope - Zope lists

Re: [Zope] Is Zope unique? Books?
by Michael Long 13 Mar '03

13 Mar '03

I am currently reading the Zope Bible and finding it very useful. The Python Developers Handbook is also a good reference to have on hand. Cheers, Mike > Hi, > > After building sites with PHP and templating engines, including PHITE... I > finally saw the light and understood the advantage of using a tool that > provides an object database at its core, and the acquisition feature. > > For my personal knowledge... is Zope unique in providing those features? > What about commercial tools like ColdFusion or MS Content Management Server? > > Also, I asked the question a couple of months ago, but can't for the life > of me find the answers to books you would recommend besides "The Zope Book" > and "Zope Web Application Development and Content Management". > > For those interested, here are others I found @ Amazon: > - The Book of Zope by Beehive > - Zope Developer's Handbook by John D. Rowell > - Zope Bible by Michael Bernstein (Author), Scott Robertson (Author) > - Zope Power Tools: by Michael R Bernstein > - Zope Web Application Construction Kit by Martina Brockmann (Editor), et al > - Professional Zope: Pro Zope by Staff Wrox Press Inc. Availability: Out of > Print--Limited Availability > - Zope by Pierre Julien Grizel Availability: This item has not yet been > released. > - Programming Zope by Gold Availability: Out of Print--Limited Availability > > Thx > Fred. > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > >

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Re: [Zope] Is Zope unique? Books?
by Michael Long 13 Mar '03

13 Mar '03

I am currently reading the Zope Bible and finding it very useful. The Python Developers Handbook is also a good reference to have on hand. Cheers, Mike > Hi, > > After building sites with PHP and templating engines, including PHITE... I > finally saw the light and understood the advantage of using a tool that > provides an object database at its core, and the acquisition feature. > > For my personal knowledge... is Zope unique in providing those features? > What about commercial tools like ColdFusion or MS Content Management Server? > > Also, I asked the question a couple of months ago, but can't for the life > of me find the answers to books you would recommend besides "The Zope Book" > and "Zope Web Application Development and Content Management". > > For those interested, here are others I found @ Amazon: > - The Book of Zope by Beehive > - Zope Developer's Handbook by John D. Rowell > - Zope Bible by Michael Bernstein (Author), Scott Robertson (Author) > - Zope Power Tools: by Michael R Bernstein > - Zope Web Application Construction Kit by Martina Brockmann (Editor), et al > - Professional Zope: Pro Zope by Staff Wrox Press Inc. Availability: Out of > Print--Limited Availability > - Zope by Pierre Julien Grizel Availability: This item has not yet been > released. > - Programming Zope by Gold Availability: Out of Print--Limited Availability > > Thx > Fred. > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev ) > >

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ZCatalog and phrase searching
by Chris Humphries 13 Mar '03

13 Mar '03

hello all, question is about how exactly zcatalog does phrase searching. from going thru the source, i am having a heck of a time trying to find where it actually does something with the search string (so i can tell how it uses it to search). the problem is that there is a requirement to be able to search for "string exactly like this", and we are using zcatalog to search over our zope content objects. now from how it is now, i am uncertian that if 1) zcatalog can do that and 2) if it can, how?. it seems to search for "string" AND "exactly" AND "like" AND "this" when that is not the desired behavior. we want it to be 4 words treated as one entity to search on, and not 4 seperate entities. if i have communicated well enough across, can you tell me if this is possible with zcatalog, and if so how do i do it? thanks, chris

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ZCatalog and phrase searching
by Chris Humphries 13 Mar '03

13 Mar '03

hello all, question is about how exactly zcatalog does phrase searching. from going thru the source, i am having a heck of a time trying to find where it actually does something with the search string (so i can tell how it uses it to search). the problem is that there is a requirement to be able to search for "string exactly like this", and we are using zcatalog to search over our zope content objects. now from how it is now, i am uncertian that if 1) zcatalog can do that and 2) if it can, how?. it seems to search for "string" AND "exactly" AND "like" AND "this" when that is not the desired behavior. we want it to be 4 words treated as one entity to search on, and not 4 seperate entities. if i have communicated well enough across, can you tell me if this is possible with zcatalog, and if so how do it do it? thanks, chris

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Product (ZClass) distribution rights management
by pieter claassen 13 Mar '03

13 Mar '03

Apologies for the repeat post but I have not had an answer on this one. 1. Is there any way to override the permissions built into ZCLass product distribution framework so that I can create recover the development code that I thought I could modify, but it turned out that I don't have the rights to repackage the code? 2. Where does the modifications to the Zclass based product gets stored (it is certainly not stored in the /lib/python/Products/productx as I have zipped that up and moved it over to my new machines and it was the original version without any of my modifications) This problem might turn out to be a serious issue and very damaging for Zclass based products. Thanks, Pieter

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Re: [Zope] Workflow
by Andreas Jung 13 Mar '03

13 Mar '03

You might consider switching to CMF and use DCWorkflow. -aj --On Donnerstag, 13. März 2003 18:24 Uhr +0100 Jan Ma?ka <jan.maska(a)systinet.com> wrote: > Hi all, > > I have a very simple question: > > I need a workflow in ZOPE. > Doesn't really matter if it's some module, product or a set of > Python/DTML/whatever objects to import and build on them. > What I need is a straightforward thing to start with and to build on. > > Can you recommend something? > > Thanks a lot.. > -Mac > > =============================== > Jan Maska, web developer > Systinet, Prague(CZ) > jan.maska(a)systinet.com > tel.:(+420)608453492 > > visit http://www.systinet.com > =============================== > > > > _______________________________________________ > Zope maillist - Zope(a)zope.org > http://mail.zope.org/mailman/listinfo/zope > ** No cross posts or HTML encoding! ** > (Related lists - > http://mail.zope.org/mailman/listinfo/zope-announce > http://mail.zope.org/mailman/listinfo/zope-dev )

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Re: [Zope] can zope port to java/dotnet?
by Michael Havard 13 Mar '03

13 Mar '03

Maybe we're looking at this from the wrong direction. Maybe the best way to leverage those skills and toolsets is in the area of interoperation instead of porting the whole shebang from trendy platform to trendy platform. For example lets say on my team I have 1 python, 6 java, and 2 .net people. I could use the python guy to create a product that communicated with a larger product created by the 6 java developers that used some other component created by the .net people. These languages don't have to be used to the exclusion of all else. I see this same thing happen in Java based web development. None of the java programmers want to know anything at all about HTML/CSS/Javascript/XML/XSLT. They want to focus on Java generating it all for them and it ending up perfectly on the other side - sans designer. They see no value whatsoever in learning or much less coding any script, html, or css. It's all about JSP, STRUTS, whathaveyou(which of course has to be learned, but that seems to be out of their realm of understanding). I fear that Java programmers of today are going to be the COBOL programmers of tommorrow. They'll be 55 years old extolling the virtues of the virtual machine and JIT well after something else has become popular. They'll be locked into a decreasing job market because they refused to go outside of their box and learn anything new. They'll end up like Powerbuilder programmers ;). >From: Dylan Reinhardt <zope(a)dylanreinhardt.com> >To: Chen Fu <novalet(a)yahoo.com.cn>,zope(a)zope.org >Subject: Re: [Zope] can zope port to java/dotnet? >Date: Wed, 12 Mar 2003 20:45:47 -0800 > >At 07:15 PM 3/12/2003, =?gb2312?q?Chen=20Fu?= wrote: >>I like zope for its pure OO framework. is it the only >>work among the CMSs take this design? If it is true, >>why not any other clone in java, c# or cpp? > >If people who programmed in c# or java cared about using good tools, they'd >have switched over to Python by now. :-) > >>I agree Python is a good language, but it faces many >>challenges also like relative slow speed > >Python code won't execute as fast as assembler, but you'll finish your >project a lot faster and have an easier time maintaining it. > >>, short of >>programmer(compare with java cpp) > >Python is today poised where Linux was about 6-7 years ago... most people >have barely heard of it and only a few have found out first-hand how >utterly it eclipses just about everything other choice in a wide range of >applications. Six years ago was a great time to be building your >credentials as a Linux guru... now is a great time to be investing your >time in Python. > >>and short of elite >>programming environment (like MS visual studio). > >There are overpriced IDEs for Python too. :-) Anyway, 90% of the problems >solved by IDEs just aren't problems in Python. Turn on syntax highlighting >in Vim and you've got pretty much all the environment you could possibly >need. > >>Some articles explain why the zope can't port from >>CPython to JPython. But how about a rebuild in pure >>java/cpp/c#? is it possible and deserved? > >A more important question is why you'd bother. Why waste important >development time achieving barely any more performance than you might have >gotten out of a memory upgrade? Besides, who want to recompile every time >you upgrade a product? > >Evaluating Python (or Zope) for its speed of execution is asking the wrong >set of questions about this kind of software. Performance matters *some*, >but not nearly as much as development cost, maintenance cost, and time to >market. If you work in an environment where software gets validated or >audited, you just can't beat Python for its clarity. When push comes to >shove, it's usually a lot easier to get more hardware than more hours of >good programming talent. > >If you want to improve Zope's performance, you can start by delegating >more. Proxy aggressively. Serve all static content (especially images) >out of Apache. Do more load balancing. Upgrade to ZEO. Once you look at >the big picture, there are very few situations where tweaking low-level >code is the most efficient way to conceive of improving performance. >Just because Zope *can* serve as an all-in-one tool doesn't mean that's the >best way to use it. > >There are situations where writing the smallest, fastest thing possible is >critical... most web apps just aren't in that domain. If you're having >performance problems in a web app, your time is almost always better spent >tweaking the graphics than just about anything else. > >My $.02, > >Dylan > > >_______________________________________________ >Zope maillist - Zope(a)zope.org >http://mail.zope.org/mailman/listinfo/zope >** No cross posts or HTML encoding! ** >(Related lists - http://mail.zope.org/mailman/listinfo/zope-announce >http://mail.zope.org/mailman/listinfo/zope-dev ) _________________________________________________________________ MSN 8 helps eliminate e-mail viruses. Get 2 months FREE*. http://join.msn.com/?page=features/virus

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Struggle to call a Zclass object from another web object
by pieter claassen 13 Mar '03

13 Mar '03

Hello, I guess I still don't get Zope completely. I wrote a news manager Zclass that works well. Normally I get to the object by calling the newster/index_html method (the default behaviour). I want to integrate it into my website and in my root directory I have the following objects: index_html (dhtml object) menu (dhtml object) top (dhtml object) news (Zclass object) I want to do use my index_html to do pull all these objects together on a single page like: <dtml-var standard_html_header> <dtml-var top> <table border="0" cellspacing="0" cellpadding="0"> <tr> <td> <dtml-var menu> </td> <td><dtml-var news></td> </tr> </table> <dtml-var standard_html_footer> But, clearly calling <dtml-vat news> just doesn't call the index_html method on the news object and include the result. I have tried things like <dtml-var expr="news.index_html()"> and that get an error that Traceback (innermost last): * Module ZPublisher.Publish, line 98, in publish * Module ZPublisher.mapply, line 88, in mapply * Module ZPublisher.Publish, line 39, in call_object * Module OFS.DTMLMethod, line 126, in __call__ * Module DocumentTemplate.DT_String, line 474, in __call__ * Module DocumentTemplate.DT_Util, line 201, in eval __traceback_info__: newster * Module <string>, line 2, in f * Module OFS.DTMLMethod, line 119, in __call__ * Module DocumentTemplate.DT_String, line 474, in __call__ KeyError: standard_html_header Somebody out there must have solved this problem? Any help is appreciated. Thanks, Pieter

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monitoring Zope with Daemontools (svscan)
by Davis Marques 13 Mar '03

13 Mar '03

I'm having some trouble getting my Zope 2.5.1 to work with Daemontools. I can get EITHER zope OR the logging service started, but never both for some reason. When Zope is running, it doesn't respond to any requests. Here's my ps output: 1092 ? S 0:00 svscan /service 1093 ? S 0:00 \_ supervise zope 1246 ? Z 0:00 | \_ [python <defunct>] 1094 ? S 0:00 \_ supervise log 1098 ? S 0:00 \_ /usr/local/bin/multilog t /var/log/zopedebug I don't know why, but in this case, Zope died and the logging service started. Here's my /service_zope/run file: #! /bin/sh # Frank Tegtmeyer, fte(a)lightwerk.com # http://www.lightwerk.com/zope/monitoring # exec 2>&1 echo "------- start by supervise -------" PATH=$PATH:/usr/local/bin reldir=/usr/local/zope INST_HOME=`cd $reldir; pwd` export INST_HOME exec setuidgid zope /usr/local/zope/bin/python \ $INST_HOME/z2.py \ -m -d -w 80 -f 21 -F '' -Z '' Here's my /service_zope/log/run file #!/bin/sh # Frank Tegtmeyer, fte(a)lightwerk.com # http://www.lightwerk.com/zope/monitoring exec /usr/local/bin/setuidgid zopelog /usr/local/bin/multilog t /var/log/zopedebug As you can see, I've done some editing to fit my configuration, and have been mucking around with the options in an attempt to get it to work. Any help you could offer would be greatly appreciated. Thanks, Davis Marques

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RE: [Zope] Zope product security question
by sean.upton＠uniontrib.com 13 Mar '03

13 Mar '03

This is a good question, and I do not know if this is the case, but I have seen behavior with __allow_access_to_uprotected_subobjects__ that would suggest that it might be (i.e. it didn't work, and out of frustration, I had to go about doing security declarations for my helper objects another, more complicated, way). This is one place that Zope really makes it difficult to use Python code not initially written with Zope in mind. Sean -----Original Message----- From: Michael R. Schwab [mailto:Michael.Schwab-mail.zope.org@icantbelieveididthat.com] Sent: Tuesday, March 11, 2003 8:49 AM To: zope(a)zope.org Subject: Re: [Zope] Zope product security question Paul Winkler wrote: > On Mon, Mar 10, 2003 at 03:33:18PM -0600, Michael R. Schwab wrote: (snip) >>The second method seems to be the newest and most logical approach. >>The being exception that the default security access to 'deny' does >>not permit me to access attributes from my class that are basic Python >>types such as strings (e.g. meta_type from a DTML Method). I could >>declare the default security access to 'allow', but that seems >>inherently dangerous from a security standpoint. > > I think what you're looking for is > __allow_access_to_unprotected_subobjects__ = 1 Having dug a little further into the bowels of Zope, I don't believe that this will work, even if I had wanted to use it. Setting __allow_access_to_unprotected_subobjects__ to 1 would be overridden by Globals.InitializeClass. In Globals.InitializeClass, there is a check to determine what the default access policy is set to ('allow' or 'deny' via the security.setDefaultAccess() call). If the default access has been set, __allow_access_to_unprotected_subobjects__ is assigned the value of default access ('deny' == 0 and 'allow' == 1). Am I off the mark here? > or, just make declarations on specific attributes: > > security.declarePublic('meta_type') > self.meta_type = "blah" Thanks, Michael _______________________________________________ Zope maillist - Zope(a)zope.org http://mail.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://mail.zope.org/mailman/listinfo/zope-announce http://mail.zope.org/mailman/listinfo/zope-dev )

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