Re: [Zope] How to start developing in zope
--Original Message-- From: Kapil Thangavelu [EMAIL PROTECTED] To: Firestar [EMAIL PROTECTED] Sent: July 30, 2000 3:21:54 PM GMT Subject: Re: [Zope] How to start developing in zope acquistion is an integral part of zope and is pretty powerful for simplifying design and implementation. Kapil --- Hi, thanks for your reply. Is acquisition similar to the concept of 'inheritance' in OOP? (or more?) I heard of this 'algebra of acquisition' written by someone...is it essential and where can i find it? TIA. regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] How to start developing in zope
Hi, I have read through(and tried out) the tutorials and Guides at Zope.org, and now eager to port my company's website over to Zope. (The website was originally programmed in PHP) In my original design, I used OOP mainly. I defined each section(e.g. News, Events, Products) as a class by itself, inheriting from a "main" superclass. Each class would contain their own set of attributes(such as font-color, title) and methods(e.g. display news headline, or display events schedule). Common attributes method that are widely used are placed(shared) in the "main" class(e.g. talking to MySQL database). So, if there's any changes or updates, inheritance will propagate the changes to the rest of the subclasses. (As usual, management will require extra features such as personalised page, membership or web-based email to be added in future. Hopefully, this kind of structure would make adding new features a breeze.) I believe Zope is based on a similar way (and much more powerful). I was wondering how shld i start something like this in Zope - i read abt ZClasses(where you can define your own Folders), Products(for defining yr business logic) and DTML(for dynamic data display). Your opinions will be much appreciated. regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] ZClass tutorial
Hi, some thoughts(and frustrations) from a newbie having his "first time" with Zope. The documentation needs a lot of improvement. Since October last year, there's still only ONE chapter(which is on ZClasses) in the Zope Developer's Guide?? Are there any more chapters forthcoming? Or do i have to fork out money and purchase the commercial version one?:( (And don't refer me to ZDP, please...) As for the "Zope Content Manager Guide", the examples are easy enough for newbies to understand, but some of the screenshots accompanying the examples are not 'consistent'. Perhaps DC can do some proof-reading there. As for the DTML reference, i felt "lost" after reading a few sections. At first, I thought it would be as easy as when i first read the PHP manual, but somehow it doesn't seem 'user-friendly' enough. Maybe i will try it again after i have read the rest of the Reference Guides. I'm not an expert in web development, and could not really pick up new "technologies" fast. But i still remembered learning PHP was not that difficult; the manual is comprehensive, easy-to-use and tutorials contributed by other websites really speed up my learning process. I understand that Zope is a different thing altogether from a programming language like PHP. I have yet to read up the Z SQL Methods User Guide, but from the docs that i have read so far, i still feel lost as to where and how to start building an 'advanced' website, e.g. converting my current PHP/MySQL website to Zope. Someting is missing here... Perhaps the Reference Guides could add more explanation and details, instead of just "click here and you will see this" kind of instructions. OR give more complex (real-world)examples, like building an e-commerce site(with sessions, cart authentication). sigh...i foresee a rocky road ahead for this newbie to master the 'Zen' of Zope. Hopefully it's not a long one:( regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] Zope is memory intensive?
Hi, i have installed Zope on a RH6 box, and looking at the processes, Zope(running as 'python') consumes abt 20% of the memory usage! A single apache daemon only takes abt 9-10%. Is Zope supposed to be so memory intensive? regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Creating Factory Objects (Products)
Hi Dieter, Surprisingly, even though there's an error message, the product still manage to 'perform' its function, i.e. build a site from its template. host:8080/manage still works ok; i guess Data.fs not corrupted. *scratch head* - does zope like to raise false alarms?? Anyway, thanks for your help. regards, firestar --Original Message-- From: Dieter Maurer [EMAIL PROTECTED] To: [EMAIL PROTECTED] (Firestar) Sent: July 18, 2000 6:41:51 PM GMT Subject: Re: [Zope] Creating Factory Objects (Products) Firestar writes: Haha, thanks for the 'wisdom' cookies:) Here are the last two lines of the traceback: File /usr/local/Zope-2.1.6/lib/python/OFS/Application.py, line 249, in __bobo_traverse__ (Object: ApplicationDefaultPermissions) File /usr/local/Zope-2.1.6/lib/python/ZPublisher/HTTPResponse.py, line 511, in notFoundError NotFound: (see above) I have to admit that in this case the end of the traceback tells not much about the problem. I found in the sources (ZPublisher.HTTPResponse) that the resource not found is indicated as an HTML *comment* in the error page. I do not know, why the implementers hide this information. Anyway, the traceback seems to suggest that the problem is immediately at the top level of your URL. Is it possible that your "Data.fs" is empty or otherwise in a strange state? What happens, if you access your site with "host:port/manage"? Dieter __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Creating Factory Objects (Products)
Hmm...Z Class was not mentioned in the guide that i'm reading now. Guess i have to check out on that later... thanks, firestar --Original Message-- From: Pierre Rougier [EMAIL PROTECTED] To: Firestar [EMAIL PROTECTED], [EMAIL PROTECTED] Sent: July 18, 2000 9:22:21 AM GMT Subject: Re: [Zope] Creating Factory Objects (Products) Hi Fire, This should work: -Create a new product (here InstantSiteProduct) (from here, your product can be accessed through the "Add" list) -In this product, add a Z Class (name it Instant Site) -In this ZClass, create your DTML methods (Designer and Builder) If u need to store properties in the Product, create a propertysheet in this Z Class. U will be able to access these properties from your product methods by using "dtml-var propertysheets.your_property " and, if u want to change the properties in your methods, use dtml-call propertysheets.your_property.manage_changeProperties( prop1=val1,,propn=valn) One more thing: all your changes on the product modify all the instances of your product... These things should work Hope this help Pierre :) I'm following the tutorial in Zope Content Manager's Guide. I created an 'InstantSite' product, with 2 DTML methods, Designer and Builder. I followed most of the instructions, and managed to see the product in my 'Add List'. But when i tried to add it into my other folders, the Builder page(which would be called after Designer) could not be accessed. The error is: "Resource not found Sorry, the requested Zope resource does not exist. Check the URL and try again." followed by the tracebacks... In fact, the tutorial doesn't seem comprehensive and contain errors(e.g. screenshots different from description). Could anyone give this newbie some pointers here? TIA. regards, Firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Zope is memory intensive?
oops...my mistake for not listing out my configuration. basically i am testing out zope on a junk machine - PPro 233 with 32MB RAM only:) At the same time, i'm running mysql, apache+php combo, and each process only consumes abt 8-9% of the memory usage. That's why the 20% from Zope surprised me... regards, firestar --Original Message-- From: Curtis Maloney [EMAIL PROTECTED] To: Firestar [EMAIL PROTECTED] Sent: July 18, 2000 6:37:49 AM GMT Subject: Re: [Zope] Zope is memory intensive? On Tue, 18 Jul 2000, Firestar wrote: Hi, i have installed Zope on a RH6 box, and looking at the processes, Zope(running as 'python') consumes abt 20% of the memory usage! A single apache daemon only takes abt 9-10%. Is Zope supposed to be so memory intensive? Well, it's all relative, isn't it? (o8 I mean, does Apache do the same work as Zope? Does it cache Python objects, is is maintaining database connections, etc etc etc. I am running Zope on a RH6.1 box, with 96M RAM. It's using about 12.5% of my memory, so far as I can tell. However, a % isn't much of a guage unless you tell us how much actual memory you have. Personally, I find that Netscape is more of a problem memory wise than Zope ever will be. (o8 regards, firestar Have a better one, Curtis Maloney dtml-var standard_work_disclaimer __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Creating Factory Objects (Products)
Haha, thanks for the 'wisdom' cookies:) Here are the last two lines of the traceback: File /usr/local/Zope-2.1.6/lib/python/OFS/Application.py, line 249, in __bobo_traverse__ (Object: ApplicationDefaultPermissions) File /usr/local/Zope-2.1.6/lib/python/ZPublisher/HTTPResponse.py, line 511, in notFoundError NotFound: (see above) Maybe because i'm a newbie, i tend to feel that Zope's error messages(or traceback) are not as clear as (for e.g.) PHP's error messages. Perhaps you can give me some pointers here? regards, firestar --Original Message-- From: Dieter Maurer [EMAIL PROTECTED] To: Firestar [EMAIL PROTECTED] Sent: July 17, 2000 11:23:04 PM GMT Subject: Re: [Zope] Creating Factory Objects (Products) Firestar writes: "Resource not found Sorry, the requested Zope resource does not exist. Check the URL and try again." followed by the tracebacks... You first need to determine what resource is not found. The tracebacks may help you with this. After you know the resource, you will ask, "why". If you are lucky, this becomes obvious, once you know "what". Dieter __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] Newbie question: User Folder
I'm going through the Zope Content Manager's Guide(on zope.org) and i came across this 'User Folder' section that i have a few questions on. e.g. Let's say we have 4 folders: ZACme/Marketing/Sales/FrontDesk Sally is defined as manager in 'Marketing'. I understand that her role is 'acquired' in Sales and FrontDesk, but not in ZAcme, therefore she would be able to make changes in Sales and FrontDesk folders. My question is, can we 'turn off' this acquired role and do not allow Sally to access Sales(but allow her to access FrontDesk, and Marketing of course)? Or must we assign a different role to her? TIA regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] linuxworld article
http://www.linuxworld.com/linuxworld/lw-2000-07/lw-07-penguin_2.html Hmm...what is your opinion on the article above? I'm interested to see the author's comparison btwn Enhydra and Zope. regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Problems shutting down Zope
--Original Message--
From: Chris McDonough [EMAIL PROTECTED]
To: Firestar [EMAIL PROTECTED]
Sent: July 7, 2000 5:05:55 AM GMT
Subject: Re: [Zope] Problems shutting down Zope
This is a 'normal' message. Zope 2.2 releases suppress the
error message on shutdown.
Phew...for once, i thought my linux distribution or zope installation is
broken:)
Not sure what's up with the tutorial. You may want to try the
latest 2.2 beta release as the tutorial comes preinstalled.
Well, this is the error message i got:
-
Error Type: KeyError
Error Value: ELVIS_SIGHTINGS
Traceback (innermost last):
File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 214, in
publish_module
File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 179, in
publish
File /usr/local/Zope-2.1.6/lib/python/Zope/__init__.py, line 202, in
zpublisher_exception_hook
File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 165, in
publish
File /usr/local/Zope-2.1.6/lib/python/ZPublisher/mapply.py, line 160, in
mapply
(Object: addTutorial)
File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 102, in
call_object
(Object: addTutorial)
File
/usr/local/Zope-2.1.6/lib/python/Products/ZopeTutorial/TutorialTopic.py,
line 176, in addTutorial
File /usr/local/Zope-2.1.6/lib/python/OFS/DTMLMethod.py, line 150, in
__call__
(Object: setup)
File /usr/local/Zope-2.1.6/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
(Object: setup)
File /usr/local/Zope-2.1.6/lib/python/DocumentTemplate/DT_In.py, line 691,
in renderwob
(Object: sample_data)
File /usr/local/Zope-2.1.6/lib/python/DocumentTemplate/DT_Util.py, line 335,
in eval
(Object: insert(_.getitem('sequence-item')))
(Info: insert)
File string, line 0, in ?
File /usr/local/Zope-2.1.6/lib/python/Shared/DC/ZRDB/DA.py, line 430, in
__call__
(Object: insert)
File /usr/local/Zope-2.1.6/lib/python/Products/ZGadflyDA/db.py, line 178, in
query
File /usr/local/Zope-2.1.6/lib/python/Products/ZGadflyDA/gadfly/gadfly.py,
line 349, in execute
File /usr/local/Zope-2.1.6/lib/python/Products/ZGadflyDA/gadfly/sqlmod.py,
line 596, in relbind
File /usr/local/Zope-2.1.6/lib/python/Products/ZGadflyDA/gadfly/gfdb0.py,
line 206, in get_for_update
File /usr/local/Zope-2.1.6/lib/python/Products/ZGadflyDA/gadfly/gfdb0.py,
line 1051, in __getitem__
KeyError: (see above)
--
If anyone has tried out the tutorial on Zope 2.1.6 and manage to solve this
problem, pls tell me!:)
regards,
firestar
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Re: [Zope] Is Zope slow?
Hi, thanks for your comment. Absolutely. Apache is many times faster than Zope. (Don't know much about AOLserver, but anything with AOL. :) However, Apache can't do squat compared with Zope when it comes to dynamic content. Not true. I have been programming using PHP and PERL, and together with Apache(DSO) they are quite fast. They do offer sessions tracking, authentication, database API + other features. It's just that due to the increasing 'hype':) on Zope and the vast array of features that it seems to offer, i'm sort of "attracted" by it:) Of course if i have time, i will play ard with it and see how good it is. Problem is that time is not really on my side and i need to decide on my next development tool fast(i have yet to try out other stuff e.g. ASP, JSP, Servlet..) I heard that the learning curve for Zope is quite steep, plus the documentation is not(?) that comprehensive, compared to e.g. PHP. What are your comments though? i may be wrong here... regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
Re: [Zope] Is Zope slow?
Hi Bill, thanks for your reply. --Original Message-- From: Bill Anderson [EMAIL PROTECTED] To: Firestar [EMAIL PROTECTED] Sent: July 6, 2000 8:19:39 AM GMT Subject: Re: [Zope] Is Zope slow? Define slow. Slow compared to what? Doing what? That's a ig difference between Zope and Apache and AOLServer. they don't _do_ the stuff that Zope does. Apache does little other than serve stati files, and take output from cgis (or modules, same _basic_ concept). Zope actually does the work. For some things Zope is appropriate, and where it is, it outperforms (IME) Apache. For others, like serving static content, it is slowER than apache. of course, slow is all relative. I have a couple zope Servers cranking out ~80 requests per second. Is that slow? ;) That's ~6 Million requests/day. Cut it in half, for more complicated tasks, and still moving along at a good clip. What's better, try Apache doing the same things. Does your next project invlove more than just static files sitting on a hard drive? Chances are, you'll be better off with Zope I have been programming with PHP and PERL, and they are quite fast, even when serving dynamic pages. Of course, they do not provide all the features of Zope, but they are able to handle things like sessions, authentication, database API...which is quite adequate for most small-to-medium websites. (although sometimes it's quite frustrating putting the modules together:) Speed and Bencmarks are irrelevant when it comes to real-world performance. :) benchmark may not be accurate, but i still think that speed is still impt. Check out Jakob Nielsen's website and you would know that speed of serving webpages is one of the main usability factors. But then again, if Zope really is THAT good, i may be inclined to switch over and use it as my main development tool in future; but the speed factor is still worrying me - i wouldn't want my website to 'crawl' when i'm presenting it to my boss or clients:) regards, thee __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
[Zope] Problems shutting down Zope
Hi, i have just installed Zope-2.1.6 on a linux server. Starting and stopping Zope from command line - no problem, but when i chose to Shutodwn from the Zope Control Panel, it complained of an error (printed below): --- Traceback (innermost last): File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local/Zope-2.1.6/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_shutdown) File /usr/local/Zope-2.1.6/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: manage_shutdown) File /usr/local/Zope-2.1.6/lib/python/App/ApplicationManager.py, line 330, in manage_shutdown (Object: ElementWithAttributes) SystemExit: 0 -- I also tried installing the Zope Tutorial, but adding the product was not successful. Is the tutorial still "raw" and may be troublesome to install? Thanks in advance from a newbie. regards, firestar __ FREE Personalized Email at Mail.com Sign up at http://www.mail.com/?sr=signup ___ Zope maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope-dev )
