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calling ZPT from ZPT and passing namespace
by Juan Carlos Coruña 30 Oct '01

30 Oct '01

Hi all, I'm trying to call a Zope Page Template object from within another Zope Page Template and I wish to pass it the whole namespace of the calling ZPT. How can I accomplish this?

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JPicture Examples?
by abg＠comco-inc.com 30 Oct '01

30 Oct '01

Hi All, Does anyone have any DTML snippets of JPicture in action? Specifically, displaying the image thumbnail has me baffled. Thanks, Aaron Gillette

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Permission Problem
by Markus Schaber 30 Oct '01

30 Oct '01

Hello, I wrote a small product to automatically wrap some pages with configurable templates. Now I have a little problem with defining permissions. I defined the role "mitarbeiter" in the management screens, and gave this role all permissions it needs (especially the permission for the management functions of the product). Now, I have a user "test". When assigned to the "Manager" built-in role, it can manage the objects of this product. When assigned to the "mitarbeiter" role, this account cannot manage the objects (it can view the management screens, but whenever calling a method that actually changes something, the login window pops up and asks for username and password. My product class contains the following lines: manage_options = ( {"label": "Contents", "action": "manage_contentForm"}, {"label": "Properties", "action": "manage_editForm"}, {"label": "view", "action": "index_html"}, ) + SimpleItem.SimpleItem.manage_options __ac_permissions__=( ("View management screens", ("manage_editForm", "manage_tabs", "manage_contentForm")), ("Change permissions", ("manage_access",)), ("Manage ZAWiW Pages", ("manage_changePri", "manage_addPart", "manage_changePart", "manage_delPart", "manage_changeTitle", "manage_delTitle", "manage_addLanguage", "manage_delLanguage", "", "index_html", "__call__")), ("View", ('', 'index_html','__call__'))) As I said, the permission to "Manage ZAWiW Pages" is assigned to the mitarbeiter role, as well as all other permissions of this class, and some others (adding Images etc.) If this doesn't clear my problem, I could try to strip it down to a minimal example and post the whole thing then. I use Zope 2.3.3-1 (debian package). Thanks, Markus -- You don't have to be Microsoft to suck... but it helps. (Tim Hammerquist in comp.lang.python)

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Security/Design Help
by Lex Berezhny 30 Oct '01

30 Oct '01

Hello, I am working on a voting system for my schools' computer science classes. Students in each class will vote for the student of the week. The student heirarchy is represented in the Zope filesystem by folders: at the top is the class folder, then period folders and finally student folders. Each student folder contains an acl_users with that students login information. An important feature in this voting program is to authenticate students when they vote, so that they are not able to vote in classes/periods they are not in. My current problem is figuring out where in the aquisition path the voting scripts should go, so that when a user goes to the voting form it prompts him/her to login and builds a list of students based on the class this student belongs to. So far I can build the list of students by using aquisition, but I am having trouble with authentication. Here is the voting form i can generate by looping through the folders in the advanced topics class (which only has one period, so it is not sectioned into periods): http://linus.yorktown.arlington.k12.va.us/Adv/vote_form I hope my explination made some sense ;) What I would like to know is how some of you would approach this problem? How should I go about designing this voting form, security wise? Any other suggestions? thanks a bunch, - lex ===== "The Python literature says implement time-critical bits in C, the C literature says implement the time-critical bits in assembler, some assembly programmers hand-craft critical machine code, and you could always design and fabricate your own chips." - Tim Rowe, digitig(a)cix.co.uk __________________________________________________ Do You Yahoo!? Make a great connection at Yahoo! Personals. http://personals.yahoo.com

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Re: [Zope] dynamic update of MSWord-Documents from local FileSystem
by complaw＠hal-pc.org 30 Oct '01

30 Oct '01

What you are looking for, essentially, is a portion of a document management system. Yes, there are people on the Zope list that want to do what you described (i.e., updating Zope with the updated file information). I think you should look at the External File/ External Image Product (ExtFile/ExtImage, which you can find by looking for ExtFile-1.1.3.tgz on the Zope site). That product will allow you to keep only the meta data on Zope, while the file itself resides on the file system. The next step would be to have Zope update the data automatically. For that, you need a trigger or something like a cron job (in the *nix world). There has been some debate and knashing of teeth on this subject and I'm not sure that there has been a satisfactory answer. There are, however, a set of products called compress_datafs.fcm, backup_zope.fcm, Xron-0-0-9.tgz and pack-db_fs that use cron to backup Zope or otherwise run cron. You might look at that to see how they do it (but your site must be secure enough to run a cron job). Then you would simply schedule a cron job to scan the external file system and update the meta data for the various objects. For a full blown document management syste, the next step (something that I'm working on) is to have the user's save/retrieve files from the file system and use Zope to retain the version/checkout status. Those are the key functions of a document management system. It would also require some type of macro for the word processors. A way to do that might be to add an ftp client on the word processor and have a dialog box prompt the user for the information which would then be sent to Zope. Good luck, Ron > Dear List, > > and in the same way to my first question about xml-documtents is it possible to link msword-documents residing in the local filesystem to zope via the MSWord-Document Product, the Word-Munger Product or by any other means dynamically. So that changes in the external word-document are reflected in zope on the fly and I could reference to the content by dtml-var? > > If somebody knows about that or has done it, I would be very thankful for some hints how to do it? > > Elena > > > > > _______________________________________________ > 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] Keeping a Variable's Value: This SHOULD Be Easy
by Danny William Adair 30 Oct '01

30 Oct '01

Hi Ben! If I understand you right, you want to keep the assigned value of a variable, to use it again later on in your code. I guess the second call to x should have been a simple <? echo x ?>, or you'll (probably) get two different values(typo?). When you say that DTML *does* forget, how did you actually assign the value? In DTML itself, you cannot assign values to variables to be used throughout the entire code. Of course there _are_ ways to accomplish what you want to do, and usually one of these two options is being considered: 1) Using the <dtml-let> tag. This pushes a new variable on the namespace stack holding the value you assigned in the tag: ----------------------------------------- <dtml-let x="6*7"> The meaning of life is...<dtml-var x><br /> In case you forgot: <dtml-var x><br /> </dtml-let> If there are no other x's in the namespace, this will generate an error: <dtml-var x> ----------------------------------------- dtml-let is a doublet tag, and the assignment is only valid within the tag. Therefore the above code will (probably) give you an attribute error on the last line. ("Probably" because x will be looked up through acquisition, and there might be an object with this name) 2) Setting a REQUEST variable. The REQUEST object is a container for a couple of useful things you have received from the client request, and also holds some other useful information about the environment of the current request (auto-generated variables). If you want to have a look, a dtml method holding <dtml-var REQUEST> might be quite an enlightening thing to have around the house (call it and you'll see what will be available to you). >From DTML, you can read, and you can also _write_ "variables" in this object. If you have a form with <input type="text" name="some_text">, then the DTML method (e.g.) that you send this form to can have a look at what you have typed: <dtml-var "REQUEST['some_text']"> or <dtml-var "REQUEST.form['some_text']"> So if you want to have a variable available "happily ever after", use: <dtml-call "REQUEST.set('x', 6*7)"> to set it. Now your variable x is available through the REQUEST object, and _anywhere_ beneath this assignment (or in another dtml method you are calling inside that code) you can use <dtml-var "REQUEST[x]"> or just <dtml-var x>. (the REQUEST[x] version, though longer, is the more precise way of looking it up. This will even work inside a <dtml-let x="something_else"> tag.) I believe you should have a look (at least) at the first chapters of the Zope Book (http://www.zope.org/Members/michel/ZB) especially if you find this a too complicated way of preserving variable values. "Good" programming style ("the Zope way programming style") might make this demand obsolete in DTML. If you need to juggle around with variables and actually doing something to them a couple of times, you're better off with a Python Script. (same book!) :-) If you need to set a lot of REQUEST variables, or have the well-known "checkbox problem" with html forms (if not checked nothing is sent, therefore the boolean value of the checkbox is not available), you might also want to have a look at a product, the <dtml-set> tag: http://www.zope.org/Members/ivo/SetTag hth, Danny On Wednesday 31 October 2001 08:36, you wrote: > ...but apparently it's not. If I were writing this in PHP: > > <html><body> > Okay, boys and girls! Let's open the magic box and generate a random > number! (applause)<br and drum roll> > <? x = int mt_rand(0,9); echo x ?><br, strike up the band> > Wow! Wasn't that exciting? Oh no! I forgot the magic number<br, shrieks of > horror> > <? x = int mt_rand(0,9); echo x ?><br, strike up the band again> Oh, of > course! How could I forget!<br, fade to black> > </body></html> > > ...but apparently DTML *does* forget. Call that daggone variable more than > once and you have to run the formula that generates a random digit! Bam! > Variable's gone. Is there no way around this? > Please help... > BenO > > > > _______________________________________________ > 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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using locale with windows
by Robert Rottermann 30 Oct '01

30 Oct '01

Andreas did provided a How-to for using non ASCII characters and structured text. Since it only explains settings for Linux here is what you have to use under W2000. >>> locale.setlocale(locale.LC_ALL,'german') 'German_Germany.1252' >>> locale.setlocale(locale.LC_ALL,'german_Germany') 'German_Germany.1252' >>> locale.setlocale(locale.LC_ALL,'german_Switzerland') 'German_Switzerland.1252' so starting Zope with -L "german" works fine as does -L "german_Switzerland" Robert

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Platform statistics
by Jeffrey Robinson 30 Oct '01

30 Oct '01

Hello folks; I was wondering if there were any sort of statistics available to give an idea of how many installations of Zope there are running on various platforms? My main interest in these facts are my ongoing attempts to run our corporate Intranet on Zope behind MS IIS. Though we've been prototyping Zope in a stand-alone mode for about 6 months our recent attempt to let it play via IIS & PCGI has been less than spectacular. The administrator's main contention is that it is open source, unsupported and my attempt to lock them into a unix-centric platform; something that will work fine under "unix" but Windows is an after-thought. (On could take this basically as a predetermined approach to Zope/open source by said admin). What I'd like to find are some stats to do with companies using IIS and Zope; showing that such a setup isn't a black-sheep. I know that there are lists of sites that run Zope available, but often they don't show conclusively what their setup is, depending if Zope is squirreled away behind a web-server, or it is on an intranet, etc. Anybody know of the existence of such info? Jeff Robinson Graphic Designer Motor Coach Industries

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RE: [Zope] Platform statistics
by Jeffrey Robinson 30 Oct '01

30 Oct '01

> -----Original Message----- > From: seb bacon [SMTP:seb@jamkit.com] > Sent: Tuesday, October 30, 2001 9:43 AM > To: Jeffrey Robinson > Cc: zope(a)zope.org > Subject: Re: [Zope] Platform statistics > > * Jeffrey Robinson <Jeffrey.Robinson(a)MCICoach.com> [011030 14:48]: > > The administrator's main contention is that it is open source, > unsupported > > and my attempt to lock them into a unix-centric platform; something that > > will work fine under "unix" but Windows is an after-thought. (On could > take > > this basically as a predetermined approach to Zope/open source by said > > admin). > > Sorry, I don't have any stats, but we've had it running without any > problems in our dev environments, and always test our apps on both > platforms before delivering them: this is because we actively sell > Zope to our clients as a cross-platform solution! How many app server > platforms allow you to deploy your software across such a wide range > of hardware / OS, simply by copying it off a CD? > > Also, it sounds to me like your problems come from PCGI, rather than > Zope? > > seb > Yes, infact I'm pretty sure you've hit the nail on the head with the last point. (Personally, I've been in love with Zope shortly after I started plugging away at it). My unfortunate position is that I'm the Graphic Designer so I can't actually do the work on IIS myself (though I do get to run amuck with Zope)... so I need to find definitive documentation on the IIS setup (step-for-step) for the admin to use. There was some sort've misconfiguration going on as calling Zope through IIS would launch pcgi_wrapper.exe which would then hog the CPU. These processes couldn't be killed, so the server had to be rebooted. I'm even willing to write up a document that'll outline in excruciatingly stupid detail how we set it up if it'll help other people. Jeff Robinson Graphic Designer Motor Coach Industries

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RE: [Zope] Platform statistics
by Jeffrey Robinson 30 Oct '01

30 Oct '01

Well, as luck would have it our NT admin built a new server from the ground up and got PCGI working with no problem. This time, no hanging pcgi_wrapper.exe or anything. (At least so far... before it used to do it right from the get-go). Right now, everything is based upon a clean install of IIS (not certain what version) and NT sp6... so I hope everything goes just ducky for now. Needless to say, the idea of having to reboot a server once it is in production... well... uhm. Hmm, it doesn't sound like the best thing. Though perhaps folks here are conditioned to it already! Jeff > -----Original Message----- > From: Martijn Faassen [SMTP:faassen@vet.uu.nl] > Sent: Tuesday, October 30, 2001 1:57 PM > To: Jeffrey Robinson > Cc: seb bacon; zope(a)zope.org > Subject: Re: [Zope] Platform statistics > > Jeffrey Robinson wrote: > [snip] > > > Also, it sounds to me like your problems come from PCGI, rather than > > > Zope? > > > > > Yes, infact I'm pretty sure you've hit the nail on the head with the > > last point. (Personally, I've been in love with Zope shortly after I > > started plugging away at it). > > PCGI is terrible, especially on NT, I suspect. I've been using a Zope > setup behind Apache on NT, and regularly PCGI wrappers went haywire, > were unkillable even by administrator, causing me to have to reboot > the entire NT machine just to restart a Zope (because otherwise I'd > get hanging PCGI wrappers). I suspect PCGI is much cleaner on a Unix > box, though I've been using fastcgi there with Apache and this works > fine and it seems to be efficient. > > Is there a fastcgi solution for IIS? > > Hm, apparently not: www.fastcgi.com says: > > Netscape/iPlanet & Microsoft - Fast Engines had FastCGI server extensions > to Microsoft's IIS and Netscape's Enterprise Servers, but they are no > longer > available. > > Okay, my knowledge has run out. :) > > > My unfortunate position is that I'm the Graphic Designer so I can't > > actually do the work on IIS myself (though I do get to run amuck with > > Zope)... so I need to find definitive documentation on the IIS setup > > (step-for-step) for the admin to use. There was some sort've > > misconfiguration going on as calling Zope through IIS would launch > > pcgi_wrapper.exe which would then hog the CPU. These processes couldn't > be > > killed, so the server had to be rebooted. > > Hm, hadn't read this yet; yes, that sounds exactly like my problem with > Apache on NT. Seems like it's not Apache but really PCGI wrappers > that are the culprit. So I just blame NT. :) > > Note that a Zope restart seems to trigger this kind of problem, in > my experience.. > > Regards, > > Martijn

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