September 2000 - Zope

[Q] Generating a dynamic navigation bar...
by Sudhakar Chandra 02 Oct '00

02 Oct '00

Background: I have a folder with various DTML Documents and sub-folders in it. Sort of like: /foo/index_html /foo/buy_html /foo/really_buy_html /foo/really_really_buy_html /foo/bar/ I am in the process of writing a DTML method to be used from each of these DTML documents which will generate a dynamic tabbed navigation bar for the other DTML Documents AND sub-folders in this folder. I am envisioning a short table across the width of the page with cells containing links to the other DTML documents and sub-folders. This is what I have so far: <TABLE BORDER=0 CELLSPACING=2 CELLPADDING=0 WIDTH="100%"> <TR>    <TD BGCOLOR="#99CCCC" ALIGN=CENTER VALIGN=TOP> <a href=""></a> </TD>    </TR> </TD> </TABLE> Questions: 1. The problem with this DTML method is that all the DTML Documents and Folders are represented as a link in the nav bar. I want to build intelligence into this DTML method to make the tab / cell for the current document just textual (as opposed to a link). If I am calling this method from foo_html, I do not the "tab" for foo_html to be a link. How do I do this? I'm guessing some kind of #if. 2. Currently, the TD cells of the table vary in length based on the contents of the cell. I want all the TDs to be of equal length. I want to first count the number of DTML Documents and Folders and make each TD to be width 100/n % (where n is the number of Documents and Folders). Any ideas on how I can do math inside DTML methods? Thanks. Thaths -- Lisa: It's full, Dad, that means you have to take out the trash. Bart: Yup, that's the rule. "He who tops it off, drops it off." Homer: Nuh-uh. "It isn't filled until it's spilled." Sudhakar C13n http://www.aunet.org/thaths/ Lead Indentured Slave

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Zope Dies with FastCGI
by Ronald L. Roeber 02 Oct '00

02 Oct '00

I have the following set-up under which Zope occasionally dies. Zope 2.2.2 (same happened with 2.2.0 and 2.2.1) RedHat Linux 6.2 Apache 1.3.12 - with fastcgi/2.2.8 and OpenSSL/0.95a I'm running Zope with Fastcgi and using Apache rewrite rules to redirect all URLs that contain "manage" to https. It seems to work fine except on occasion Zope will die with the following error: "ZServer uncaptured python exception, closing channel <FCGIChannel connected 127.0.0.1:2198 at 87195b> (socket.error:(32, 'Broken pipe') [path_to_Zope/Zserver/medusa/asynchat.py|initiate_send||211] [path_to_Zope/Zserver/medusa/asynchat.py|send|274]) This doesn't always mean the server is dead but it is the only error I can trap with debug turned on. I am starting the Zope server with the -Z option. Ideas. I'm about ready to start making the server more widely available but cannot if the server is unreliable. Ideas, strategies, options? TIA Ron Roeber

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Re: [Zope] SQL errors
by Dieter Maurer 01 Oct '00

01 Oct '00

Andy McKay writes: > Using ZODBC Database Adapter to connect to an MSSQL and I can call the sql > method in dtml eg: > > <dtml-try> > <dtml-call "SQL_add_user(REQUEST)"> > <dtml-except sql.error> > Error! > </dtml-try> > > But does anyone know a way of trapping the specific error eg: database down, > key violation etc...? Or do I have to hack ZODBC to return different errors? You know the "error_value" variable defined inside the "dtml-except"? Maybe, it can give you additional information about the kind of error. If it is the wrong one, reraise the exception. Dieter

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Hexcolors and DTML
by Peter Bengtsson 01 Oct '00

01 Oct '00

This might be a math-python question but... All I want to do is to print out the hexvalue of all black/white colors for a "fading HTML table". #ffffff, #fefefe, #fdfdfd, ... #020202, #010101, #000000 I can do a loop from 1 to 255, but I don't know where to go from there. BTW, are there non-websafe greycolors? Can the loop be for only websafe ones?

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WebTechniques "Web Tools Awards"
by Gary E Graham 30 Sep '00

30 Sep '00

We have entered Zope in WebTechniques "Web Tools Awards" contest. We would appreciate your help by voting for Zope for your Open Source choice. Starting Monday, October 2nd, please visit http://www.webtechniques.com and place your vote for Zope. Thank you for your support. --Gary Gary Graham gary(a)digicool.com Digital Creations Fredericksburg, Virginia ---------------------------------------------------- Creators of Zope: The Open Source Application / Content Management Server www.zope.org www.digicool.com

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newbie:zclasses within zclasses (down the hill)
by Sven Hohage 30 Sep '00

30 Sep '00

I've searched on a solution for this problem for hours. I want to build a site-structure where users can add with help of templates new webpages. One webpage for itself is a ZClass(baseclasses:ZObject, _ZClass_for_Folder, _ZClass_for_CatalogAware, ZObjectManager). ---The formular: ---<form action="second"> <dtml-tree branches_expr="objectValues(['Spam'])"> <input type="checkbox" name="destination" value="<dtml- var id>"> <dtml- var "absolute_url()"> </dtml-tree> The user can decide where to build the webpage(ZClass with metatype 'Spam') In 'second' he can choose a template and then the constructor_site builds it: --<dtml- with "_.getitem(destination,0)"> --<dtml- with "manage_addProduct['Spam']"> <dtml-call "Spam_page_add(_.None, _, NoRedir=1)"> ---</dtml-with> I've also tried -><dtml-with "_[destination]"> and also with not saving the 'id' but the 'absolute_url' in 'destination'. The constructor_site is on the top level of the website and he doesn't know the folders downside.How to solve the problem???Please help me because it's only two days to finish everything. _______________________________________________________________________ 1.000.000 DM gewinnen - kostenlos tippen - http://millionenklick.web.de IhrName(a)web.de, 8MB Speicher, Verschluesselung - http://freemail.web.de

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Re: [Zope] Use variable value by other file
by Dieter Maurer 30 Sep '00

30 Sep '00

Rafael =?ISO-8859-1?Q?Sep=FAlveda?= writes: > How can I make a value of a variable be seen by another file that lies > on tha same folder than the first one? > > I need this because I need a variable in each file describing who did > that page, but the display of that variable is on the > standard_html_footer file. <dtml-let author='Dieter Maurer' > ....... <dtml-var standard_html_footer> </dtml-let> "standard_html_footer" uses "<dtml-var author>" to access the author. It is not necessary for "standard_html_footer" to be in the same folder than your file. Dieter

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zope needs webdav global access *ON/OFF* feature
by J�lio Dinis Silva 30 Sep '00

30 Sep '00

Hi all, I think zope MUST have a way to disable webdav access. Running a webdav client on some zope sites I found in almost all of them things like test_html index_html_old and some other forgiven methods that programmers leave on their applications. Depending on what test programmers were doing in this methods one could find a way to do some DOS on does sites, just to begin. I mean, even if the user dont have permissions to edit/save methods, just the fact that he is browsing my structure and viewing my methods is bad for security. I looked at source and the webdav implementation is class specific implemented, i.e, only objects of classes that import webdav stuff and implement it are Published by zope to a webdav client. I tryed to find a *central* switch to disable it on ZServer or ZPublisher, but no luck. I also tryed to find something like domain restriction which could be another way to disable webdav. The solution of disable Access Contents Information to anonymous isnt pratical on a complex site already in production. I'll try to find a way to disable/restrict the webdav access. Any suggestion? Best Regards, Júlio Dinis Silva _________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com. Share information about yourself, create your own public profile at http://profiles.msn.com.

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Two inquiries
by //www.alomega.com/ 30 Sep '00

30 Sep '00

Hey there people, First, the customary thanks for such a great product. Second - I have two problems. First one is that I got zope compiled for linux then installed Login Manager then installed ZPatterns, but when trying to compile DynPersist.c it can't find ExtensionClass.h. It honestly isn't in my system tho I have python and python-devel installed. Second, I was gonna use LoginManager for this project: I'm building an automated proxy, mail router, security manager, based on users, so that the administrator can restrict its users access to chat, web proxy, filesharing via samba, etcetera. BUT I can't seem to find the right object to select and associate properties for my users (user X can use computer Y) neither can I find a product that will contribute those users to /etc/passwd and /etc/smbpasswd. Any ideas? Thanks in advance. Please reply either in private mail or with CC to mine. Manuel ---------------------------------------------------------- Universidad Federico Santa Maria - Campus Guayaquil

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Property problem - still the same...
by Lars Heber 30 Sep '00

30 Sep '00

Hello again, I recently set a question about nested properties. Unfortunately, we didn't come to a proper solution. I was told to use ZClasses, and I read a lot of documentation about it. But I found out that this isn't the thing I was searching for. So, now I'll try it again, very concrete this time: In my root folder, I have a property enterpriseName (string) = "myEnterprise". Furthermore I have an arbitrary DTML document, and I want to include my global property enterpriseName in the title property of this document so that the title of the document is "myEnterprise" at the end. The sense of that is that when I change the value of enterpriseName automatically all titles are updated. It is not possible to include this enterpriseName into standard_html_header or similar, because there will be many documents, and only some of them need the enterpriseName in their titles, others want to add an own text to the enterpriseName resulting in e. g. "This is the Homepage of XYZ, who is working at myEnterprise". I generally just want to insert one property into another... Please, please help me, I'm despairing in the meantime... Lars

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