November 2000 - Zope

Zope+PostgreSQL
by Robert Senger 30 Nov '00

30 Nov '00

Hi all, The ZPoPyDA module refuses to work properly. After several problems installing PostgreSQL (V. 7.0.3), ZPoPyDA (0.7 or 0.5) and PoPy (V. 1.4.1), Zope says at start that to please 'update your version of PoPy'. But I already have the newest available versions. Does anybody have experience with PoPy/ZPoPyDA??? Thanks! -- Dipl.-Phys. Robert Senger Fachgebiet Raumfahrttechnik Technische Universität München Boltzmannstr. 15, D-85747 Garching Tel: ++49 / (0)89 / 289-15997 Fax: ++49 / (0)89 / 289-16004 email: r.senger(a)lrt.mw.tum.de

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dtml-tree stuff
by Mike Kelland 30 Nov '00

30 Nov '00

I think I may not have asked a specific enough question last time round. I'll try it again. I've been looking through the How-To's and the documentation and the dtml-tree stuff that I have found seems exceedingly cryptic. The closest that I've come to a solution is the following code: <dtml-in "getAllClientNames(REQUEST)"> <dtml-tree id=clientID branches_expr="getClientsForProjects(get_clientID=clientID)" > <dtml-var company_name> </dtml-tree> </dtml-in> where getAllClientNames looks like: select company_name,clientID from client; and getClientsForProjects looks like: select company_name, clientID from client where deleted = 0 and clientID = <dtml-sqlvar get_clientID type=int>; This gives me a tree structure which, when I expand company1 gives me company1 again and again (ie Company1 Company1 Company1 Company1 etc as deep as I care to go Company2 Company2 etc Company3 Company4 What I'm trying to do is list my company name as the tree branch and have the sub headings of each branch be my projects for that company. Can anyone help? Thanks very much Mike Kelland mike(a)studiomatic.com

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Ah, I found it -- Estimate of community size
by Albert Boulanger 30 Nov '00

30 Nov '00

This was the item is was looking for on how big the Members folders was, FYI. From: http://www.zope.org/Documentation/ZWN/ZWN-2000-09-26/index_html?pp=1 Zope Web by Ethan Fremen Exorcising Zope.org The extremely large Members folder (11139 of you!) and acl_users folder was causing Zope.org to load nearly 50 MB of "Ghosts" - stateless objects - into memory. The ever resourceful Shane Hathaway jumped in with his BTreeFolders for both the acl_users folder and the Members folder. Now, instead of 26,000 objects loaded at once, only about 1,000 or so get loaded.

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adding roles to Zope in Product.initialize()
by Randall Kern 30 Nov '00

30 Nov '00

I wish to restrict the creation of a class (SpokeSite) to people with the "Add Spoke Site" permission, and in turn only provide that permission to people in the 'Super-manager' Role. When I call ProductContext.registerClass for my SpokeSite class, I can pass the permission argument with the tuple ('Add Spoke Site', 'Super-manager'), which does a good job of limiting the availability of my class (just as I desire). However, I would like my Product to automatically create the 'Super-manager' Role, if it doesn't exists. The bad part is that this role needs to be added before any of my objects exist, which makes it hard... I've got it *working* by cheating, and using the private __app attribute of the ProductContext. Is there a better way for python Products to alter the Zope installation (add Roles, create Folders, etc.) during installation? Thanks! -Randy

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Re: [Zope] Factoids for supporting zope
by Tres Seaver 30 Nov '00

30 Nov '00

Dennis Nichols <nichols(a)tradingconnections.com> wrote: > > At 11/28/00 11:34 AM, albert boulanger wrote: > > From: "Chris McDonough" <chrism(a)digicool.com> > > > Ah. Well, my opinion is that it'd be fairly dangerous > > > to make the assertion that (as great as they both are) > > > Zope and the Zope community can "make up for" the other > > > half of the capital they need to develop the software they > > > want. So what's the decision they're trying to make? Whether > > > to develop at all? > > > > Whether to go with portal products from Plumtree or iPlanet. > > If this implies that you are considering using Zope's PTK, then you should > be aware of this: You can *not* get commercial support from Digital > Creations for PTK because PTK is not a released product. If you think you > may need such support before PTK gets to 1.0, then you had best not use the > PTK. But that's no reason to not use the rest of Zope. As the current product lead for the PTK, and a DC consultant who uses it every day in developing software for customers, I wouldn't say that your statement is, perhaps, misleading. While I'm not the person who negotiates support contracts for DC, I do know that DC sees the PTK as a key element of our future growth plans. In the meantime, most people get their support fo using the PTK from the place they get support for using Zope: right here on the lists: mailto:zope-ptk@zope.org http://lists.zope.org/pipermail/zope-ptk http://lists.zope.org/mailman/listinfo/zope-ptk (I watch the PTK tracker, as well). Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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Zope.org going down for the last time :)
by emf 30 Nov '00

30 Nov '00

Ok, I'm bringing zope.org down and back up in read-only mode. Then I am going to copy the data.fs over, start the new server again, and proxy the old zope to the new one. Enjoy! ~ethan

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Cannot create Primary Key
by Angietel 30 Nov '00

30 Nov '00

I'm using the Z Gadfly Database as my database adapter, and i using Z SQL Method to create my table, but it is not allow for me to create Primary Key for the my sequence integer field, beside that it also not allow me to create a 'date' data type field. my SQL will be:- CREATE TABLE customer (custno SERIAL PRIMARY KEY, custactdate DATE)

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Re: [Zope] Instance within Instance
by Dieter Maurer 30 Nov '00

30 Nov '00

Daryl Stultz writes: > I have a product folder called "TestClass" with 2 ZClasses: class1 and > class2. > The following is an exerpt from the class1 constructor: > > <dtml-with "class1.createInObjectManager(REQUEST['id'], REQUEST)"> > <dtml-call "REQUEST.set('id', 'myClass2')"> > <dtml-call "class2_add(_.None, _, NoRedir=1)"> > </dtml-with> > > I want class2 to be created INSIDE of the class 1 instance. Instead, > class2 (always with an id of "myClass2") is created at the same level as > the class1 instance. How do I change the namespace to get the class2 > instance inside class1? You should look at the source of your "class2_add", especially the constructor that creates the object. I expect, that you use "class2.createInObjectManager" to create your "class2" instance. "C.createInObjectManager" usually uses "C.aq_parent" to determine the object manager where the new C instance should be created (unless it has a "Destination" attribute). This should be your "class1" instance "instance1", more precisely, an acquisition wrapper for it. There are two possibilities: 1. for reasons, I do not understand, "class2.aq_parent" is not "instance1" 2. it is "instance1", but "instance1" does not have a "_setObject" method, i.e. "class1" is not derived from ObjectManager. Dieter

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Is there an interest for Zope classes taught in Europe
by Gary Graham 30 Nov '00

30 Nov '00

Digital Creations is considering offering Zope classes for the European market with perhaps two classes in the Springtime in 2001. We are asking for your input on: 1) are there any students interested in attending? 2) suggestions for class locations and dates? 3) price has not been set yet and may vary according to location costs. 4) most likely the classes would be taught in English 5) what other languages? 6) are there qualified multi-lingual Zope instructors? Comments, other ideas, suggestions or, any students interested, please reply to training(a)digicool.com --Gary Gary Graham gary(a)digicool.com Director, Sales & Marketing Digital Creations Fredericksburg, Virginia mobile: 540.840.3813 office: 540.372.9971 direct eFax: 781.394.7868 ---------------------------------------------------- Creators of Zope: The Open Source Application / Content Management Server www.zope.org www.digicool.com

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Re: [Zope] Ah, I found it -- Estimate of community size
by Tres Seaver 30 Nov '00

30 Nov '00

albert boulanger <aboulang(a)ldeo.columbia.edu> wrote: > > Now, I wonder wich statement is more accurate: > > > >http://www.zope.org/Documentation/ZWN/ZWN-2000-09-26/index_html?pp=1 > > > > > >Zope Web > > > > by Ethan Fremen > > > > Exorcising Zope.org > > > > The extremely large Members folder (11139 of you!) and acl_users > >folder was causing Zope.org to load nearly 50 MB of > > "Ghosts" - stateless objects - into memory. > > or > > From: > http://www.zope.org/Documentation/ZWN/ZWN-2000-11-08 > > "Zope Web > > by Ethan Fremen > > How Many Zopatistas? > > [....] > > There are 1617 members of zope(a)zope.org and 409 members of > zope-dev. There are 200,000 unique visits to zope.org every month (ok, > that's a record :). All items are factual, and accurate for the dates they were posted. Which is more "interesting" is an exercise in punditry: * 11000+ members have signed up on the www.zope.org website. * 1617 people subscribe to the zope(a)zope.org mailing list, which seems to average 70+ messages per day (2000+ per month). * 409 subscribe to zope-dev(a)zope.org, which runs around 20 messages per day / 600 per month. * The zope.org websites have been averaging 200,000 unique visits per month. Tres. -- =============================================================== Tres Seaver tseaver(a)digicool.com Digital Creations "Zope Dealers" http://www.zope.org

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