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RE: [Zope] Zope and Java
by sean.upton＠uniontrib.com 24 May '02

24 May '02

I think this sums it up pretty well; something else I might add: in addition to tools like pychecker, for a dynamically-typed language like Python with strong support for different unit-test frameworks and type checking mechanisms in the standard library, I'm not sure that you need to rely on the crutch of static typing, compiler warnings, etc, like you would in C/C++/Java - these would never buy you what automated unit-testing will (provided that you do it), and create a large amount of overhead that, while good at catching a small percentage of certain errors before runtime, make you jump through hoops to get there. Besides that, Java code is ugly (like all Cish languages and Perl). The thing I don't understand about people who might prefer Java to Python is why they are willing to let the complexity of the language obscure the problem being solved, especially when you have to read someone else's code. Python lets your code get straight to the point and just solve a real problem, IMHO. Sean -----Original Message----- From: dman [mailto:dman@dman.ddts.net] Sent: Friday, May 24, 2002 8:04 AM To: Zope@Zope. Org Subject: Re: [Zope] Zope and Java On Fri, May 24, 2002 at 10:32:55AM +0200, Oliver Marx wrote: | Well, we are choosing framework for our future web-applications. | So far it has boiled down to: | | - Zope | - Zope-like Java framework | | We prefer strongly typed languages, so Python would normally not be our | language of choice. You've fallen into a common misconception wrt type systems. The static/dynamic and the strong/weak axes are independent. Here's a short list of some lanaguages : C, C++ static, semi-strong Java static, strong Perl dynamic, weak Tcl dynamic, weak Sh dynamic, weak Python dynamic, strong In python you can not perform string operations on non-string objects, you can't perform list operations on non-list object, you can't perform integer operations on non-integer objects and you can't perform an operation on a class instance that it doesn't support. Python checks types very strongly and doesn't have a tendency to automagically convert objects into different types. It is, however, dynamically typed because it does the type checking at runtime rather than compile-time. This is helpful because it reduces the amount of up-front effort a developer must exert while coding and allows for greater flexibility in the future when types of objects may change in compatible ways. In addition, there is a tool called "pychecker" that performs many of the same sanity checks a C/C++/Java compiler performs. There are longer explanations available on the web somewhere. | And in our opinion Perl is a write-only language :) :-). | So | it would have been cool if we could have used Java with for our Zope | objects. Are there any Zope like frameworks for Java? J2EE. It is many orders of magnitude more complex than zope, and requires you to write lots of pointless boiler plate code and it is much harder to get a j2ee server up and running, and is harder to debug the many obscure problems you'll run into. However, having beat my head into a wall over j2ee in school, when I started reading the zope book everything "clicked" and I wholly understood what was going on. HTH, -D -- Pleasant words are a honeycomb, sweet to the soul and healing to the bones. Proverbs 16:24 GnuPG key : http://dman.ddts.net/~dman/public_key.gpg

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RE: [Zope] Zope Serving Linux File System
by sean.upton＠uniontrib.com 24 May '02

24 May '02

There are several products that store underlying file data on disk, and metadata in proxy objects in the ZODB: http://www.zope.org/Members/MacGregor/ExtFile http://www.zope.org/Members/arielpartners/ExternalFile Or, create custom products that do this to fit your needs. A good hypothetical example is if you wanted to store 60MB postscript files and manage thousands of these files; their metadata could be stored in the ZODB; you could write filters to make their text contents able to be indexed by a Catalog. What is stored in ZODB (either in a file-proxy object or in a Catalog) is meaningfully queriable information. What kind of data are you trying to store? Sean -----Original Message----- From: Tran, Mike [mailto:MTran@shufflemaster.com] Sent: Friday, May 24, 2002 8:01 AM To: 'zope(a)zope.org' Cc: 'lazug(a)yahoogroups.com' Subject: [Zope] Zope Serving Linux File System Hi all, Besides LocalFS, does Zope have any other products or methods to serves-up linux local file system. What i want to do is to allow our users(developers) to upload/download their contents to the webser without having to import huge files into ZODB. These files could reach up to Gigabytes per user. Does anyone have any suggestion on how i should handle this? Thanks, Mike _______________________________________________ Zope maillist - Zope(a)zope.org 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 )

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partition 'zope' server
by Tom Deprez 24 May '02

24 May '02

Hi, I've received here an old Sun Sparc with an 2.1GB and 4.1 GB SCSI and I would like to set it up mostly as a Zope server. Anybody who can give me advice on the best partition structure for this thing? Thanks, Tom.

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RE: [Zope] Zope and Java
by Warnes, Gregory R 24 May '02

24 May '02

> -----Original Message----- > From: dman [mailto:dman@dman.ddts.net] [snip] > > Some java skills that are not easily applied to zope, but can be done > with some effort : > o use of the standard java libraries > o use of other java libraries > Is there a clean way of accessing java code/libraries from CPython? I though I saw something about this once but can't seem to locate any information on it. -Greg LEGAL NOTICE Unless expressly stated otherwise, this message is confidential and may be privileged. It is intended for the addressee(s) only. Access to this E-mail by anyone else is unauthorized. If you are not an addressee, any disclosure or copying of the contents of this E-mail or any action taken (or not taken) in reliance on it is unauthorized and may be unlawful. If you are not an addressee, please inform the sender immediately.

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site rule fails in upgrade from siteaccess1 to siteaccess2
by chas 24 May '02

24 May '02

The following setup worked fine with SiteAccess1 but is no longer working with SiteAccess2 (running on Zope 2.3.3): In Apache: ---------- <VirtualHost 128.121.113.201> ServerName www.liuxue51.com ServerAlias liuxue51.com ProxyPass / http://128.121.113.201:8080/liuxue/ ProxyPassReverse / http://128.121.113.201:8080/liuxue/ </VirtualHost> Zope: ----- In the subfolder "liuxue", I have a SiteRoot with values : Base : http://www.liuxue51.com Path : / Testing : ---------- I put the following into a dtml-method called "testsiteroot" in the "liuxue" sub-folder : URL = <dtml-var URL> Result : -------- Point browser to http://www.liuxue51.com/testsiteroot : URL = http://128.121.113.201:8080/liuxue/testsiteroot I had been expecting (or hoping for) "URL = http://www.liuxue51/testsiteroot" This all used to work fine with SiteRoot1 on older Zope versions. Unfortunately, this problem is afflicting all my virtual-hosted sites running on the Zope server. Did I miss something in the upgrade ? thanks in advance, chas

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ZCatalog and ExtDocument
by dnielca＠netscape.net 24 May '02

24 May '02

Hi There. I´ve been searching about ZCatalog and the usage of ExtDocuments. I´ve read that this product may allows you to have searchable documents content via ZCatalog. But I couldn´t quite get how to let the ZCatalog catalog the contents of ExtDocuments. Other thing that stills a mistery for me is how to let a ZCatalog update its indexes automatically. Where do I set that I want to have my Objects and new ones of a kind cataloged automatically? Thanks for any help, Nielca www.interlegis.gov.br __________________________________________________________________ Your favorite stores, helpful shopping tools and great gift ideas. Experience the convenience of buying online with Shop@Netscape! http://shopnow.netscape.com/ Get your own FREE, personal Netscape Mail account today at http://webmail.netscape.com/

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Use of ZMI Find Tab
by Eric Roby 24 May '02

24 May '02

Is it possible to perform searches via the find tab (advanced search input form) for occurrances of text in ZClass properties? I have searched the docs and listings for hints but nothing specifically says this can be done. It is also unclear regarding the limitations of the expression box. The source (FindSupport.py) appears to set up an eval call so I am not sure how best to setup an expression that would work here. Also, the source looks to set up a special handler for ZClass meta_types (grabbing propertysheets.methods), so I am confused whether this can be accomplished via this service or will I have to setup my own using zopeFind? TIA Eric

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Error trying to delete a product with zCommerce Product
by acarrasco 24 May '02

24 May '02

I´m having problem to delete products from the zCommerce Product manage interface, and so on, from scripts. The error: Cannot locate object at: http://slif-01-01a:9080/rgarcia/B2B/catalogs/farmacia/%24b78dff1fbc Traceback (innermost last): File /usr/local/opt/Zope/2.4.0/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/local/opt/Zope/2.4.0/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/opt/Zope/2.4.0/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook (Object: SQLObject) File /usr/local/opt/Zope/2.4.0/lib/python/ZPublisher/Publish.py, line 162, in publish File /usr/local/opt/Zope/2.4.0/lib/python/ZPublisher/BaseRequest.py, line 370, in traverse File /usr/local/opt/Zope/2.4.0/lib/python/ZPublisher/HTTPResponse.py, line 557, in debugError NotFound: (see above) ¿Any experience with this Product?. I have looked for errors and tried to hack the product code, but I can´t find the bug. I browse zCommerce mailing list, but nobody have had similar experience?. Any tricks? Thanks in advantage. Antonio Carrasco.

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RE: [Zope] Strange pdf problem
by H.de.Wit＠SFK.NL 24 May '02

24 May '02

>Open the PDF from a local copy into full Acrobat. >Save As a .PS file with a different name. >Double-click the .PS file to have Acrobat distill it to a new PDF (often much There is another solution: Sometimes the adobe pluggin doesn't work properly with your browser. The solution then is to disable the browser integration of the adobe pdf reader. Clicking a pdf file gives you a new acrobat reader window with the requested pdf file To do that, open the acrobat reader You'll find somewhere in the edit>options an option with the browser integration. Disable it, and there you go. Met vriendelijke groeten, Hans de Wit Stichting Farmaceutische Kengetallen Postbus 30460 2500 GL DEN HAAG Tel. 070-3737448 Fax 070-3737445 "Arian de Wit" <a.dewit(a)niwa.cr To: Zope(a)zope.org i.nz> cc: Sent by: Subject: RE: [Zope] Strange pdf problem zope-admin@zope. org 23-05-02 23:53 Hi All, > We have a pdf file in our [Zope] database, and there's a problem with > displaying it. > Some PDFs work others don't. On my machine with only Adobe Acrobat > Reader, I get the blank screen. On one of my colleagues with the full > Adobe installation, we don't get the problem. We have found a workaround for this problem, as follows: Open the PDF from a local copy into full Acrobat. Save As a .PS file with a different name. Double-click the .PS file to have Acrobat distill it to a new PDF (often much smaller, like 4MB down to 300KB!) Upload the new PDF into Zope and test. (FYI, we often use ExternalFile for large PDFs to prevent bloating the ZOD, but not always. In doing so, the object's "behave like" property needs to be set to "Image".) This worked for us on the few problem PDFs we've had so far -- YMMV. Cheers, Arian ------------------------------------------------------------------ Arian de Wit Information Systems Integration Manager NIWA (National Institute of Water and Atmospheric Research) Gate 10 Silverdale Road, Box 11-115, Hamilton, New Zealand 2001 Phone (+64) 7-856 1769 Fax (+64) 7-856 0151 Web http://www.niwa.co.nz ------------------------------------------------------------------ _______________________________________________ Zope maillist - Zope(a)zope.org 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 )

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Re: [Zope] Zope and Java
by Chris Withers 24 May '02

24 May '02

Oliver Marx wrote: > > >>BTW, Look at Oscar is you realyl want to case abotu type checking > >>in ZODB apps.. > > cheers *lol* Well it is friday after all cheers :D Wow, that was quite spectacularly bollox typing wasn't it? ;-) The MEMS Exchange guys wrote a module called Oscar (or was that Grouch?) for checking the type/structure of ZODB's. If you care about strongish type checking, that'd be the place to look... cheers, Chris

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