March 2001 - Zope - Zope lists

Newbie: help with Zope Book script error
by Robert H. Boyd 05 Mar '01

05 Mar '01

Greetings, I'm not having success with the Zope Book ch 3 script example. First, I've noticed it has the formula wrong in the script. Original: i = interest_rate * periods # (don't I wish my bank would do this :) i = i + 1 n = periods * years return pow((1 + i), n) * principal # already added 1 to i above Correct: i = interest_rate / periods i = i + 1 n = periods * years return pow(i, n) * principal BUT, even with that, submitting the form returns an error of "not enough arguments: expected four, got 0". In the Zope manager, on the editor for script calculateCompoundingInterest, I have entered principal, interest_rate, periods, years in the parameters field. The form page has these same params specified as input fields; I don't know much about Zope but I'd guess that Zope should understand that each named input field is a parameter name, accompanied by its value. So what is going wrong? Does the script itself need to look more like a regular Python function, ala 'def calculateCompoundingInterest(principal, interest_rate, periods, years):' ? Or is <dtml-var calculateCompoundingInterest> not the correct way to call a script from a page? TIA, Robert Boyd

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LocalFS and html quoting
by Ron Bickers 05 Mar '01

05 Mar '01

I'm trying to include a specific LocalFS file into a dtml document, but it is getting html quoted. Also, it seems that Jonothan Farr's how-to is either wrong, or I don't know what I'm doing. Including the contents with the 'data' property does not work (I get an attribute error). My LocalFS object is called lfs, and I'm including the contents using the following (where string Filename contains the file name in the articles subdirectory): <dtml-in "lfs['articles'].fileValues(Filename)"> <dtml-var getObject> </dtml-in> I've tried sequence-item (which just gives me the Local File object instance), and various other things (including just plain <dtml-var lfs['articles']['thefile.html']">, but it's always quoted. Any hints on getting it included without html quoting? Thanks! _______________________ Ron Bickers Logic Etc, Inc. rbickers(a)logicetc.com

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PostgresStorage for ZEO anyone
by Rene Bedijn 05 Mar '01

05 Mar '01

Hi all, I would like to install ZEO with Postgres except I can't seem to find a Storage for it. Has anyone any idea where I could find it. Greetings.

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Re: [Zope] sendmail problem
by Dieter Maurer 05 Mar '01

05 Mar '01

Harald Scheirich writes: > --============_-1228582322==_ma============ > Content-Type: text/plain; charset="us-ascii" ; format="flowed" Please, no MIME mail! > I am trying to use the dtml-sendmail tag but it is failing to cooperate. "sendmail" is very sensitive to leading white space. The mail headers ("To:", "From:" etc) must all start in the first column. Dieter

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Re: [Zope] Getting client browser type
by Dieter Maurer 05 Mar '01

05 Mar '01

Etienne Labuschagne writes: > How do I get the client's browser type (IE, Navigator, etc). I know how to > do it in JavaScript, but does not know how to communicate this with Zope. When you know, how to do something with JavaScript, you always can use "hidden form controls" or query strings to pass the information to Zope (or any other HTTP server). Dieter

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Re: [Zope] Download resume
by Dieter Maurer 05 Mar '01

05 Mar '01

=?iso-8859-1?q?J=F8rn?= Helge B. Dahl writes: > We have gotten a question from someone who wants to download a rather > large file from our site. He seems to want to download only small > portions of the file, and use resume to get the rest of it. The trouble > is that he seems not get it to work. He says that getright and flashget > complains about that our site does not support resume. We use ZServer > 1.1b1. Partial loads is an HTTP 1.1 feature. Zope implements HTTP 1.1 only to a small extend. If you have programming skills, you could enhance the "OFS.Image.File.index_html" method to support partial loads. Dieter

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Re: [Zope] Some doubt about how to best assign user rights.
by Dieter Maurer 05 Mar '01

05 Mar '01

=?iso-8859-1?Q?Max_M=F8ller_Rasmussen?= writes: > My problem is that I want to give each student the right to edit the content > in their own folder. You already know about "local roles"? Look in the Zope book for more details. You may find something, too, in URL:http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html Dieter

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Re: [Zope] Importing external document
by Dieter Maurer 05 Mar '01

05 Mar '01

ASHISHRANJAN_V writes: > Problem is when it fetches the html page , it also changes the relative > links in html page . In fact, Zope does not change it. Its the browser that resolves the relative URL relative to the base it knows. You can use "RESPONSE.setBase" to tell the browser the true base URL. More details URL:http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html Dieter

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Re: [Zope] ZClass with property linking to another object
by Dieter Maurer 05 Mar '01

05 Mar '01

Ronald L. Chichester writes: > In other words, is there a way to establish a relationship between two > objects in the database so that a search for related objects in one > instance will bring up the other objects (be they the same class or > not)? Have a look at ZCatalog. Dieter

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Re: [Zope] RE: ZODBC problem (was: Preventing WebDAV locks)
by Dieter Maurer 05 Mar '01

05 Mar '01

Capesius, Alan writes: > ... > with further testing I > have determined that the Zope server itself is not locking up, but rather > requests to the database (MS SQL7 via ZODBCDA) seem to be queueing up. My memory tells me faintly that such an issue has already been discussed in the mailing lists (zope, zope-dev). When I remember right, ZODBCDA synchronizes all database requests --> searchable list archives... Dieter

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