February 2000 - Zope

Why does Zope insert a <BASE > tag?
by Chris Withers 17 Feb '00

17 Feb '00

Hi, I was wondering why Zope inserts a <BASE HREF="..."> tag into each page? Is there any way you can change what it inserts? The reason I ask it's currently putting in the wrong thing. Here's the situation: We have several sites on one Zope installation, set up as follows: zope.nipltd.com/project1 zope.nipltd.com/project2 zope.nipltd.com/project3 ...etc... These are also served up through Apache as follows: www.project1.com www.project2.com ...etc... Now in this second case, the base tag inserted is something like: <base href="http://www.project1.com/project1/"> which is wrong and is causing things to break... How can I go about correcting/removing this base tag? cheers, Chris

1 0

An adapter for DB2
by Alessandra Pessolano 17 Feb '00

17 Feb '00

Python is installed in /usr/local/Python-1.5.2 Zope is installed in /usr/local/zope/2-1-2/ I would like to get data on my browser from DB2(Database) trough this linux box. Is there an adapter for this database? Is the ODBC Adapter right for this situation? Thanks in advance for Your help

1 0

(no subject)
by Roddy 17 Feb '00

17 Feb '00

=>  => <ul> =>  =>  => <li><A HREF=""></A></li> =>  =>  => </ul> =>  Thanks Loren, works fine, except for silly acquisition. If you are viewing a page that has the property set to true acquisition says that the property is in the namespace. I don't want to have to set it to false on every other folder, just true on those not to display in the index. What happens is if you view a folder that has the property set then nothing at all is displayed because it's not set to false anywhere else and it's in the namespace stack as true! Other ideas? -- Roddy --- Roddy Vagg Programmer, Web Developer Cooperative Research Centre for Cattle and Beef Quality (and) Total Genetic Resource Management (TGRM) Ph: (+61)267733978 ---

2 1

zope on shared disk
by - 17 Feb '00

17 Feb '00

hi all, what's the pros and cons of loadin zope of a shared disk aka thru nfs or samba? this on a LAN with Giga ether or fast ether. reasons for this - so that we can share database and have many frontends serving request. is this even possible? has anybody tried eddie (www.eddieware.org)? i see this as an option too, but the database is still the limiting factor. i know zeo exists, but i'm a bit tight now. inputs/pointers/docs welcomed tia -- ------------------------------------------------------ http://www.kedai.com.my/kk Am I Evil?

1 0

Determining Success or Failure status on SQL update in ZSQL Metho d d
by Ira Hochman 17 Feb '00

17 Feb '00

Hello, A search of prior discussion threads shows this question occasionally appears without resolution. Perhaps someone has found an answer to it since then, so here it is... Using a ZSQL method, how do I detect if any rows have been affected when performing a SQL UPDATE. I do not need to know how many rows, just whether the statement affected 0 rows or more than 0 rows. My environment is Oracle (7 & 8) and with other programmatic interfaces to Oracle, one can capture a (non-error) return status that indicates if no rows were affected. This is supported in the ODBC API for Oracle and other databases as well. Is there a way to capture this return status even though it is not flagged as an error? No dtml-try since it's only a return code, not an error code As a workaround I've tried to do a select count, but to do this I need to 1) execute the select and update in the same transaction and 2) run the select before the update, store the value, then return it at the end (the update may or will change at least one of the fields referenced in the where clause, so I cannot run it after) So, inside of a SQL method, I can do #1, but cannot see a way to do #2. Is there a secret trick to this or is it a case of adding code to the existing DAs? Please please tell me it's the former. Thanks in advance, Ira

2 1

StructuredDocuments
by Jeff Hoffman 17 Feb '00

17 Feb '00

Hey, guys. For what it's worth, I got a simple StructuredDocument ZClass to work, even when used as index_html. Here's how: I created a Python product called StructuredDocumentBase that included a class of the same name. This class is defined as follows: from OFS.DTMLDocument import DTMLDocument from StructuredText.StructuredText import html_with_references class StructuredDocumentBase: """Mix-in for StructuredDocument ZClass.""" def __call__(self, client = None, REQUEST = {}, RESPONSE = None, **kw): """Render the document given a client object, REQUEST mapping, response, and keyword arguments.""" header = apply(self.standard_html_header.__call__, (client, REQUEST), kw) body = html_with_references(apply(DTMLDocument.__call__, (self, client, REQUEST), kw)) footer = apply(self.standard_html_footer.__call__, (client, REQUEST), kw) return '%s%s%s' % (header, body, footer) Then, I created another product called StructuredDocument, this time through the web. In this product, I created a ZClass called StructuredDocument, which inherits first from StructuredDocumentBase and then from DTMLDocument. Then, I placed an instance in a folder, navigated to the URL, and it worked. I would package it up and upload it as a product, but a part of it is broken--I can't rename the instance. This has nothing to do (AFAICT) with the __call__ voodoo above, but seems to be due to my inheriting from DTMLDocument; I created a simple ZClass that did nothing except inherit from DTMLDocument and it exhibited the same behavior. Anyways, Tres (or anyone using Tres's product), if you want to take this idea and integrate it into your STX_Document class that'd be cool. If not, I'll make a more complete (and tested) implementation when I can find the time. Hope this helps, --Jeff --- Jeff K. Hoffman 704.849.0731 x108 Chief Technology Officer mailto:jeff@goingv.com Going Virtual, L.L.C. http://www.goingv.com/

1 0

Re: [Zope] manage_changeProperties doesn't for my zclass
by Anthony Baxter 17 Feb '00

17 Feb '00

>>> "Kevin Dangoor" wrote > <dtml-call "manage_changeProperties({ > 'firstname' : REQUEST['firstname'], > 'lastname' : REQUEST['lastname'] > })"> An aside here - an easy easy error to miss is to use manage_changeProperties when you in fact mean manage_editProperties. The former will set all properties in a sheet, so that if you don't specify something, it gets cleared. Anthony, who's been bitten by this one too often.

1 0

NEWBIE: assignment in DTML
by Michiel Toneman 17 Feb '00

17 Feb '00

Hi, This must be a dumb question, but I can't seem to get to grips with the DTML syntax :( I would like to assign a value 0/1 to a variable "authorize" like in the code snippet below (allowed_users is a multiple selection property): ------------------------------------------------------------------ <dtml-let authorize="0"> <dtml-in allowed_users> <dtml-if "AUTHENTICATED_USER.getUserName() == _['sequence-item']"> <dtml-var sequence-item> Hello, we are autorized <dtml-call "_['authorize']='1'"> </dtml-if> </dtml-in> </dtml-let> ------------------------------------------------------------------ What do I have to do to get authorize = 1? This syntax for <dtml-call> doesn't work, but I've tried just about everything :( Greetings, Michiel Toneman -- >From a Sun Microsystems bug report (#4102680): "Workaround: don't pound on the mouse like a wild monkey."

6 6

RAM session management
by Hung Jung Lu 17 Feb '00

17 Feb '00

Hi, Has anyone done RAM session management? (storing session information in RAM.) I am thinking in implementing RAM session management. The picture I have is: (1) Implementing a mini TCP/IP server at a port in an internal server machine. Most likely I'll use Python. (2) The web server then talks to the session server via TCP/IP. Does this scheme seem OK? (Security, performance, scalabilty, etc.) regards, Hung Jung ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

4 3

manage_changeProperties doesn't for my zclass
by Thayer Gignoux 17 Feb '00

17 Feb '00

Hi, I'm another newbie with a dumbass question. I've got a folder, listitems, which only contains objects of type mailitem. I'm cloning an instance of mailitem which lives outside the folder into it <dtml-with listitems> <dtml-with "manage_clone(mailitem,REQUEST['email'],REQUEST)"> So far so good. The new mailitem is created with email as the id. Then I want to set two more properties from REQUEST variables. <dtml-call "manage_changeProperties({ firstname : REQUEST['firstname'], lastname : REQUEST['lastname'] })"> </dtml-with> </dtml-with> But even though it (presumably) executes without errors it just never works. I know I'm missing something really basic here. Any help would be appreciated. And yes I realize this is not a terribly good real-world solution but I'm trying to bring myself up to zope speed with a simple mailing list service. One other thing: It seems to me that the general case of populating an arbitrary number of object properties with REQUEST values could be served by a method which iterates over an object's properties to obtain their names and then gets their values from the REQUEST namespace, assuming that the property and the form variable names are exactly the same. I don't quite understand how to do that yet but if anyone cares to create some dtml to do that I am at the point where it would be really helpful. TIA Thayer

2 1