January 2000 - Zope - Zope lists

ZopePacks: A Proposal for a new Zope Product...
by Butch Landingin 21 Jan '00

21 Jan '00

Hi all, I've created a proposal for a new Zope product which I'm in the process of building. The url of the proposal is: http://www.zope.org/Members/butchland/ZopePackProposal/index_html Its a long document and it suffers a little in the succintness/clarity department (sorry about that :() In summary, I'm proposing a mechanism by which we can manage ZClasses and other objects (e.g. Folders) exported via .zexp files and somewhat make the process of deploying ZClass-based applications easier and error-free. I hope you take the time out to read it and give me your valuable opinion, advice, and help. TIA, Butch __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

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Re: [Zope] Re: [Zope-dev] Zope Futures discussion: your input
by J C Lawrence 21 Jan '00

21 Jan '00

On Fri, 21 Jan 2000 15:43:55 -0500 (EST) Dan L Pierson <dan(a)sol.control.com> wrote: > Does Debian's Zope package support updating an existing Zope site > to a new version of Zope without disturbing the contents and > products in the site? In general, yes. At least I've done any of half a dozen apt-get updates of Zope without anything breaking. This is of course apt's and dpkg's main claim to fame: network upgrades and installs that self configure and deliver working systems. -- J C Lawrence Home: claw(a)kanga.nu ----------(*) Other: coder(a)kanga.nu --=| A man is as sane as he is dangerous to his environment |=--

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Q: How are interactive web apps done?
by Robb Shecter 21 Jan '00

21 Jan '00

Hi, I've done lots of servlet programming, and am finally checking Zope out. It looks -very- interesting. I'd like to use it but I'm still trying to figure out how I'd use Zope in all the ways I use servlets. For example: A typical servlet-based web app uses the servlet API to automatically generate a session object for each user. (The API maintains the session by either a cookie or url rewriting.) A small inheritance framework can easily be written to make some servlets do authentication in their base classes before allowing the user to continue. The subclasses then can get the session object, which is a hash table of objects. One might then define a User java object that gets put into the session after authentication in the base class. Now all of the user's attributes can be accessed by the servlets. What is the equivalent way of doing things in Zope? I've read about the various user permissions, but I'm not sure how that'd be used in a web application. For example, how would an interactive banking application be implemented in Zope? Where would you define what info you want to save about each user? How is the ODB used in a more database-like way, as opposed to a transparent web document source way? Or, is there no difference? Thanks for any info. I think that it'd be great to see someone make a howto like "Zope for Servlet programmers". - Robb

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Re: Zope as a content manager for static web sites
by Hung Jung Lu 21 Jan '00

21 Jan '00

butch landingin <butchlan-(a)yahoo.com> wrote: >Why not just let the static content stay as a static pages in a directory >somewhere, I posted another reply, exactly because I knew people would get confused and not understand what exactly Bob Crosley wants to do. Please read my posting to understand why he needs to do what he needs to do. :) >One of the downsides of this approach, however, is that you tend to miss >out on a lot of Zope's unique capabilities... He knows that. But with a web hosting service that does not provide Zope, his approach is the next best thing to do. :) And you'd be surprised how many people would like to do the same thing. Sooner or later, someone will write up a Zope product to make this process easier. :) regards, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Python Conference weather
by Guido van Rossum 21 Jan '00

21 Jan '00

If you're traveling to the Python Conference, be advised that winter has finally arrived in the Washington, DC area. We're currently experiencing *high* temperatures of 22 degrees F (-6 degrees C); with the wind chill it will feel much colder. So be sure to pack warm clothes. Yesterday, about 6 inches of snow fell, disrupting air travel; more is expected on Sunday, so expect delays flying into DC. Local transportation should be fully operational, but may experience some delays. We've placed a weather advisory in the local section of the conference website: http://www.python.org/workshops/2000-01/local.html Over 250 people have registered for the conference. See you all there! --Guido van Rossum (home page: http://www.python.org/~guido/)

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Re: Zope as a content manager for static web sites
by Butch Landingin 21 Jan '00

21 Jan '00

"bob crosley" <bobc(a)hilgraeve.com> wrote: > We're using Zope to build a web based app, but we also have a site > that just serves static pages. I'd love to use Zope as a content > management tool for the static site, but can't install Zope on that > server. <snip> Why not just let the static content stay as a static pages in a directory somewhere, then use the LocalFS Zope product to point to that directory and serve them up? Of course, I haven't used the LocalFS product in a "real" production environment (and it may have security implications that I am not aware of) but I've tried it out in a test environment and its great for serving file-based content I don't care to convert or store in the ZODB... The Zope Product is available here: http://www.zope.org/Members/jfarr/LocalFS Another alternative is to use PCGI or FastCGI to convert a portion of your website to serve up your Zope app -- assuming that the webserver you are using is supported by Zope (e.g. Apache, Roxen, IIS, Netscape, etc). Lastly, if you still want to go with your approach of converting your Zope pages into static text, search through this list's mailing archives -- IIRC, there have questions about this in the past and several of them have been answered (use wget or a similar utility that grabs webpages from websites). One of the downsides of this approach, however, is that you tend to miss out on a lot of Zope's unique capabilities... HTH. Regards, Butch __________________________________________________ Do You Yahoo!? Talk to your friends online with Yahoo! Messenger. http://im.yahoo.com

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RE: [Zope] Anonymous v. unknown
by Michel Pelletier 21 Jan '00

21 Jan '00

> -----Original Message----- > From: Matt Miller [mailto:matt.miller@thelinuxstore.com] > > I have a problem which I am sure many others have run into > and solved. > I have setup some public folders in Zope and underneath them are some > user folder protected branches. > > In my work on my advertising banner project, I have created reports > which show the reuslts of impressions, blah, blah for customers. They > log in to the site and can see their banners and the > statistics on them. > > Problem: > > I am trying to access, inside these branches, data which is public. > Zope seems to demand that people who are logged in to any part of the > document tree have access rights elsewhere in the tree. If I understand you correctly, your problem is the HTTP Basic auth mechanism, it's actually your *browser* which is insisting on sending auth credentials with each request. Since Zope can't know whether or not you care about the validity of these credentials, it allways honors them. > would prefer > to map an 'unknown' user to anonymous access. Did I miss something in > my setup? I solved this short term by moving my user_folder up the > tree.. but I don't like this solution much. I don't understand what you mean by this mapping. -Michel

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RE: [Zope] ZopePacks: A Proposal for a new Zope Product...
by Rob Page 21 Jan '00

21 Jan '00

> I've created a proposal for a new Zope product which I'm > in the process of building. > > The url of the proposal is: > > http://www.zope.org/Members/butchland/ZopePackProposal/index_html I too, think this is a cool (and useful) idea!! It might be useful to look at the docs for the RPM and see what kinds of things they were thinking about. This is not to say that ZopePacks should be anywhere near as comprehensive as RPMs. Rather, that they've thought of a number of issues that may or may not be germane the mechanisms in Zope. --Rob

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Anonymous v. unknown
by Matt Miller 21 Jan '00

21 Jan '00

I have a problem which I am sure many others have run into and solved. I have setup some public folders in Zope and underneath them are some user folder protected branches. In my work on my advertising banner project, I have created reports which show the reuslts of impressions, blah, blah for customers. They log in to the site and can see their banners and the statistics on them. Problem: I am trying to access, inside these branches, data which is public. Zope seems to demand that people who are logged in to any part of the document tree have access rights elsewhere in the tree. I would prefer to map an 'unknown' user to anonymous access. Did I miss something in my setup? I solved this short term by moving my user_folder up the tree.. but I don't like this solution much. -- Matt Miller matt.miller(a)thelinuxstore.com

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[ZGotW] Issue #1 Entry
by Zope Guru of the Week 21 Jan '00

21 Jan '00

=================================================================== Issue #1 -- DTML Subroutines =================================================================== Status: Open Zen Level: Novice (1/8) Keywords: DTML Submitted by: Tres Seaver tseaver(a)palladion.com ------------------------------------------------------------------- Suppose you have been happily hacking away at your Zope site, and discover that you are reusing a chunk of DTML over and over::  <dtml-in "objectValues( 'FooType' )"> <tr> <td> <a href="&dtml-id;"><dtml-var id></a> </td>  </tr> </dtml-in> Now, you decide to "refactor" the site to follow the "Once and Only Once":http://c2.com/cgi/wiki?OnceAndOnlyOnce dictum of "Extreme Programming":http://www.extremeprogramming.org : i.e., you'd like to make this snippet a reusable "subroutine," so that you could make changes to it in just one place. The intent is to be able to reuse the loop, but be able to vary the meta_type(s) being passed to the loop: in one spot, it would be '"FooType"', but in another, it might be '[ "Folder", "DTML Document" ]' [1]. How do you move this code out into a DTML Method and then replace all the cloned copies with calls to that method? [1] *Please pardon my inverting the single/double quotes here: while not valid DTML, it **is** valid Python, and renders correctly as StructeredText.* ------------------------------------------------------------------- Entry from: Evan Simpson evan(a)4-am.com ------------------------------------------------------------------- Zope Guru of the Week wrote: > Entry from: Jeff K. Hoffman jeff(a)goingv.com [snip] > If you want to call this method on objects elsewhere in the > hierarchy (i.e., not the "current" folder): > > <dtml-with target> > <dtml-var "table_of_type(this(), _, type_list = ['FooType'])"> > </dtml-with> This can more concisely be written as <dtml-var "table_of_type(target, _, type_list = ['FooType'])">. Specifying the client like this is a little-appreciated compensation for having to make the first two arguments explicit when passing keyword arguments. This can also be used to get around acquisition problems. Suppose you don't want to clutter up your root folder with this sort of factored method, so you stick them all in a folder called '/lib'. Now you want to call '/lib/table_of_type' on folder 'target'. If you try... <dtml-with target><dtml-with lib><dtml-var ...></...></...> ..you'll get a list of object in 'lib' instead of 'target'. Reverse the 'dtml-with's and it may work, but it's awkward, and fails if there is a '/lib/target'. On the other hand... <dtml-var "lib.table_of_type(target, _, type_list='Folder')"> ..will work just fine (even if table_of_type is a Document instead of a Method!). Cheers, Evan @ 4-am P.S. I *really* like this Zope Guru of the Week idea. This could turn into a real Zope knowledge base. -------------------------------------------------------------------

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