November 2001 - Zope

help architecting persistent services in Zope
by Jin Choi 14 Nov '01

14 Nov '01

Hello. I'm attempting to expose a COM object as a Web service using Zope's XML-RPC capabilities. I have it working, but I've come across an issue and many hours of searching documentation have not made it apparent how to resolve it. The COM object I'm using takes a non-trivial amount of time to start up. I'd like to create a bunch of them and keep them around, kind of like database handles in a connection pool. It is not clear to me how to do this, without creating a product analogous to a database connector. I don't suppose there's some way I can create objects at some "global" interpreter level, accessible by every thread? Any help would be appreciated. -Jin

2 1

RE: [Zope] Recital support
by sean.upton＠uniontrib.com 14 Nov '01

14 Nov '01

It sounds to me like the Zope Content Management Framework might work for this kind of thing very, very well (you are essentially looking to create a community-oriented portal, which is something CMF does "out of the box"). It has membership services, and the infrastructure for simple news items, and I think there are some calendar components you can add to it as well... http://cmf.zope.org Sean -----Original Message----- From: Bernard Gray [mailto:buzz999@bellsouth.net] Sent: Wednesday, November 14, 2001 11:12 AM To: zope(a)zope.org Subject: [Zope] Recital support I'm not sure of etiquette on this list ... so apologies if this is the wrong list, etc. I know a piano dealer who would like to provide a free service to piano teachers. Functionality would be basic: - e-mail interface so teachers can sign-up - search page, where people can find teachers by zip code, speciality, etc - recital scheduling, which would allow scheduling of space at the dealers for teachers and their students - news: where the dealer can post news items of an infrequent basis. Is ZOPE a good vehicle for this kind of development? Anyone available for development? The dealer is located in Atlanta, GA. TIA Buz

2 1

RE: [Zope] Howto Implement a site search functionality for LocalF S product
by Singh, Kamal Deep 14 Nov '01

14 Nov '01

thanks for response Well unfortunately I am no zope or python expert. I come from c++ , java environment. Do u have any idea about how much work it is supposed to be, to extend LocalFS product. The actual problem is that I am currently in the process if using zope in our companies intranet. Right now the intranet has 5 GB of data and it's not possible for me to put all those file's one by one inside ZOPe, that's why i cam up with the idea of using LOCALFS. What do you think, is it possible to use ZOPE and LOCALFS in this environment?. any help is appreciable. later kamal deep singh -----Original Message----- From: Jens Vagelpohl [mailto:jens@zope.com] Sent: Monday, November 12, 2001 2:03 PM To: Singh, Kamal Deep Cc: 'zope(a)zope.org' Subject: Re: [Zope] Howto Implement a site search functionality for LocalFS product this can only be done by extending the LocalFS product and the objects it creates to represent the files on the file system. jens On Monday, November 12, 2001, at 04:46 , Singh, Kamal Deep wrote: > Hi, > > I am trying to use zope along with LocalFS product to access the files > from local file system. My current need is to provide site search > functionality. It seems ZCatalog and other search utilities provided > inside > zope doesn't work for LocalFS. > Does anybody has a idea howto provide Site-Search functionality for the > files from file system. > > > thanks in anticipation > kamal deep singh >

3 2

Problem solved, was Re: [Zope] Can't use aq_parent in Product??
by Paul Winkler 14 Nov '01

14 Nov '01

On Wed, Nov 14, 2001 at 03:13:02PM -0500, Casey Duncan wrote: > Ummm, I don't see how acquisition could work any other > way. Remember, at this point in the code, the object is not mounted > in the ZODB yet, and therefore has no parent. There is a recipe on > ZopeLabs regarding this issue . Check out: (snip) Thanks for the reply. But if you look elsewhere in the thread you'll see that my problem was solved 3 days ago. I'm keeping that link - that's a good one. thanks, PW -- paul winkler home: http://www.slinkp.com music: http://www.reacharms.com calendars: http://www.calendargalaxy.com

1 0

Installing Win32 extensions
by Meilicke, Scott 14 Nov '01

14 Nov '01

Hi, I'm trying to install win32 extensions to 2.4.2. This seems like it should be simple, but I haven't figured it out, nor found any documentation that has worked (google search). I have installed activestate python 2.1.1. I modified the registry (HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\Intranet\Parameters\St art) to have zope use the activestate version of python, which I confirmed from the zope control panel, but my external method that calls win32com still errors with: Error Type: NameError Error Value: global name 'win32com' is not defined Here's the import stuff from my external method: from win32com.client import constants,Dispatch import pythoncom import base64, os, whrandom, re, string from time import * Any thoughts? Thanks - Scott

1 0

Adding, removing views
by Jesper Holmberg 14 Nov '01

14 Nov '01

Hi all, I know I can define my own views of an object with something like this: manage_options = ( {'label': 'Propriétés', 'action': 'manage_editForm',}, {'label': 'Vue', 'action': 'index_html',}, ) But doing this means that all the standard views are gone. I would like to keep some of the standard views, and at the same time add a few of my own. How would I go about doing this? TIA, Jesper -- Jesper Holmberg |"But how can | jesper.holmberg(a)enst-bretagne.fr | one be warm | ENST Br, BP 832, 29285 Brest, FRANCE | alone?" |

3 2

Can't use aq_parent in Product??
by Paul Winkler 14 Nov '01

14 Nov '01

I have a Product I'm creating (python, not Zclass). I thought that I could get the parent object of an instance of my product using the aq_parent method. But AFAIKT, this only works on an "acquisition wrapper" of an object - not on the object itself?? Example: try this in Boring product: class BrokenBoring( OFS.SimpleItem.Item, # A simple Principia object. Not Folderish. Persistent, # Make us persistent. Yaah! Acquisition.Implicit, # Be able to find things via acquisition. AccessControl.Role.RoleManager # Security manager. ): """ Can't acquire the parent... fooey. """ meta_type = 'Boring' # what do people think they're adding? (snip) def __init__(self, id, title=''): """initialise a new instance of Boring""" (snip) try: assert hasattr(self, "aq_parent") except: print "Hey! This instance can't acquire parent!!" When you add one of these in a folder, it prints the exception message in the log. In other words ... no aq_parent. So I guess I need to get an acquisition wrapper to self, so I can acquire its parent? How do I do that? I can't figure it out from the DevGuide. Or Is there a less bletcherous solution? Help! -- paul winkler home: http://www.slinkp.com music: http://www.reacharms.com calendars: http://www.calendargalaxy.com

3 3

instability problems 2.4.x... Ready for production?
by Antwan Reijnen 14 Nov '01

14 Nov '01

Hi all, I am a little bit concerned about the things I read about the mysterious crashes of Zope 2.4.x. A site I am going to build has to go in production in a month or so. Should I consider building the site in 2.3.2, which according to other messages is "rock-solid"? Your opinions on this are highly appreciated! Greetings, Antwan Reijnen.

4 4

Recital support
by Bernard Gray 14 Nov '01

14 Nov '01

I'm not sure of etiquette on this list ... so apologies if this is the wrong list, etc. I know a piano dealer who would like to provide a free service to piano teachers. Functionality would be basic: - e-mail interface so teachers can sign-up - search page, where people can find teachers by zip code, speciality, etc - recital scheduling, which would allow scheduling of space at the dealers for teachers and their students - news: where the dealer can post news items of an infrequent basis. Is ZOPE a good vehicle for this kind of development? Anyone available for development? The dealer is located in Atlanta, GA. TIA Buz

1 0

Zope tutor needed in Baltimore, Maryland
by KEVIN ZEMBOWER 14 Nov '01

14 Nov '01

My organization, the Johns Hopkins University Center for Communication Programs (www.jhuccp.org) is just starting to use Zope. We are interested in starting by hiring a Zope tutor for a half or whole day to give us a seminar in Zope (less formal than a class, with more interaction) and use as the class examples a real system that we need and that we'll put into production. I think the system that is needed is somewhat simple and could be done in a day, even with answering questions and giving other examples. Our order fulfillment department sends large pdf files to clients who request them as attachments to emails. A large percentage of the emails bounce, because the users have addresses like hotmail, which limits the size of attachments. They would like a system to do the following: * The order fulfillment person here goes to a password-protected web page and fills in a form with: -user's name -user's email address -pull-down menu of days to expire; 7 days, 14 days, 21 days -name of file on local system to be uploaded to Zope and later downloaded to the user * The Zope system would generate an email to the user similar to: Hello, [name], this is the automatic order fulfillment program at the JHU/CCP. The file you requested is at http://www.jhuccp.org/dc/something/something. You have the next [days to expire] days to download it. When you go to this link, I will ask you for a userID and password. The userID for this file is "xyzpdq" [random sequence of 4-6 characters] and the password is "secret" [ditto]. * The Zope system would then do one of two things. If the user went to the link before the expiration date, it would ask for the userID and password, and, if it was correct, send them the file. Then it would delete the file and all the other information from the Zope system. Or, if the person didn't go to the link in the time given, it would just delete it all anyway. My questions: Can Zope do this? Can a person experienced in Zope create this system in a day? Can a person experienced in Zope create this system is a day, while 3-10 eager-to-learn Zope newbies watch over his/her shoulder and ask questions? Anybody interested in this job, or know someone who is? To do this job, you would have to: * be available to come to downtown Baltimore, Maryland during business hours for either a full or half day (could be two half days if your schedule requires it, or you think it would be a good idea). * be available in the next two to three weeks. * be good at explaining Zope concepts and procedures and be patient with Zope newbies and their questions and interruptions. * be able to create this system in a day or less, while answering questions. * have created Zope systems similar to this at one or two sites that I could take a look at. If you're interested in this, please write directly to me at kzembower(a)jhuccp.org and let me know what you would charge, half or whole day, and the sites I could look at. If you know of anyone who might be interested, please forward this email to them. If you have any questions, also please write directly to me. Thank you for considering this request. -Kevin Zembower ----- E. Kevin Zembower Unix Administrator Johns Hopkins University/Center for Communications Programs 111 Market Place, Suite 310 Baltimore, MD 21202 410-659-6139

1 0