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How to handle file uploads in python?
by Chew Meng Kuan 28 Oct '99

28 Oct '99

Hi, I was able to create a simple ZClass to handle uploads/file attachment. No problem there. Next I want to do the same thing but use python instead with Jeff Rush's Poll product as a template. I'm currently stumped on the following piece of code: def manage_edit(self, field1, field2, field3, attachment, SUBMIT='Change', REQUEST=None): "Store Away Possibly-Modified Basic Attributes" self.field1 = field1 self.field2 = field2 self.field3 = field3 try: manage_addFile(id=attachment.filename, file=attachment) except: pass <snip> which only results in the following error message Error Type: IOError Error Value: [Errno 5] I/O error The python class subclasses CatalogAware as well as OFS.ObjectManager as I was hoping to be able to place the uploaded file in the object itself. I've scoured the mailing list as well as looked at the source code of some products but to no avail. Any ideas? Thanks, Meng Kuan

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minor oops in Shared/DC/ZRDBA/DA.py
by Anthony Baxter 28 Oct '99

28 Oct '99

--- DA.py.dist Thu Oct 28 21:58:16 1999 +++ DA.py Thu Oct 28 21:58:37 1999 @@ -379,7 +379,7 @@ try: dbc=getattr(self, self.connection_id) except AttributeError: raise AttributeError, ( - "The database connection, %s, cannot be found.") + "The database connection, %s, cannot be found.",self.connection_id) try: DB__=dbc() except: raise 'Database Error', (

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Re: [Zope] Zope.org performance (Was Re: [Zope] Front door on the Zope web site)
by Anthony Baxter 28 Oct '99

28 Oct '99

>>> Paul Everitt wrote > Still, we do need to keep an eye on making the software perform better. > I'm very very interested in the cache information reported earlier. > We'll tinker with that today on a test site. Mark Nottingham has been ragging on me for a while about Zope's behaviour with caching - he's probably willing to offer advice... (but as he's midway through moving hemispheres right now, I don't know how much time he's got...) Anthony -- Anthony Baxter <anthony(a)interlink.com.au> It's never too late to have a happy childhood.

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Re: [Zope] Zope Cacheability
by Jeff Rush 28 Oct '99

28 Oct '99

On Thu, 28 Oct 1999 10:09:38 +1000, Garth T Kidd wrote: >Why zpowered.jpg is cacheable but none of the others are is beyond me. >Whatever's going on, though, we should fix it. There's no reason those guys >can't be sending an accurate Last-modified and a reasonable Expires (say, an >hour or a day in the future -- how often are you going to change 'em?). I'd like to help in whatever way I can. I can say that there are currently no 'Expires' headers anywhere in the Zope source and that Zope has a (reported 2-days ago) bug that it's IF-MODIFIED-SINCE HTTP header conditional in OFS/Images.py is *backward*, resulting in odd updating of images. I'm also seeing occasional CONTENT-LENGTHs of zero, and then Zope shoves out an GIF image anyway, choking some browsers. I'm still trying to nail this one down before reporting futher. I may be doing something wrong in my objects. >The goal is simple: figure out what modifications can be made to Zope's >basic items so that they're at least reasonably cacheable. The best >reference for figuring out what headers we want to generate is probably >Mark's Caching Tutorial for Web Authors and Webmasters: > > http://www.mnot.net/cache_docs/ I'm off to read it so we can talk. I need to learn more re caching anyway to fix my dynamic image update problem. -Jeff Rush

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RE: [Zope] Front door on the Zope web site (Was Re: [Zope] SmartW orker)
by Jay, Dylan 28 Oct '99

28 Oct '99

> -----Original Message----- > From: Rik Hoekstra [mailto:fghoekstra@cit10.wsd.leidenuniv.nl] > Sent: Thursday, October 28, 1999 00:25 > To: Paul Everitt; zope(a)zope.org > Subject: RE: [Zope] Front door on the Zope web site (Was Re: [Zope] > SmartWorker) > > > > > > Ironically if you did a survey of Zope users, most would > probably say > > the same tale of woe. "I found out about Zope, downloaded > it, worked > > like hell to understand it, then the light bulb turned on." > > Quite so, but not exactly stimulating to start with is it? > > > o What questions should the Zope.org home page, and pages > > one click away, answer? > > > > o What are some effective ways to answer those questions? > > 1. What can I do with Zope. > > Present a quick tour, preferably in a slick slideshow. This > should show of > some of the 'what can I do with it' stuff, but present it > from the more > technical features point of view that make Zope outstanding. > THe point with > the technical features is that they are just busswords until > you show what > they mean (I know, a slideshow is still fake, but at least it gives an > impression). And anyway a story told from a concept is more > convincing. > > Outline the highlights of the tour in a static presentation (for the > impatient or those with slow connections) > > 2. Make it attractive and easy for people to get started: > - Put downloading _prominently_ on the opening page. > > - Prepare a 'beginners download'. This should include documentation, > preferably a grounds up tutorial. > Ideally this beginners download should come with an example > database with a > builtin interactive tutorial. The tutorial should be in Zope, and the > described examples shoould be observable right away. This would be a > Quickstart on steroids (an example is Macro Media Authorware > that has a help > system with examples and the examples can be adapted and > included right away > in your own product) and make fixing the zope.org site a top priority. Going to the MS site and seeing how slow it is gives me no faith in ASP. Same applies here. The Zope site MUST run fast if people are to trust in it no matter what the technical reason for its extremely slugish performance may be. I've given up looking at it (>1min is my limit).

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Very newbie question
by Gaved Adriano 28 Oct '99

28 Oct '99

Hi all my company will definitely need a content management product and I'm starting to examine some products (before the ties get trapped by sellers with costly and inflexible tools). Zope seems very promising (although the learning curve seems steep) but wandering through the documentation I couldn't see if it has (or how easy is to implement) the two features we need most: - something that checks the broken links AND informs the authors periodically - something that periodically sends to the authors a message such "Your web page/bunch of web pages hasn't been modified since 1/month/year/decade. Do you think the content is still worthwhile?" I guess something similar is already in zope or is very easy to implement for everyone who made a couple of perl scripts in his lifetime, but I'd like to have some confirmation. TIA adriano CSELT - PQ/S Via Reiss Romoli, 274 - I10148 Torino (Italy) Tel.: + 39 011 228 6158 Fax.: + 39 011 228 5839 ICQ: 38137696

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Re: [Zope] Confera reply error
by Thomas B. Passin 28 Oct '99

28 Oct '99

I have the same error. Same versions, running on Win95. It looks like the wrong thing is being passed to regsub.gsub. Hope someone knows exactly what to fix. Thomas Passin ----Original Message----- From: davhsu(a)falcon.cchem.berkeley.edu <davhsu(a)falcon.cchem.berkeley.edu> >I can't post a reply to a Confera message. I'm running Python 1.5.2, >Confera 1.2.0, and Zope 2.0.1. Similar errors have been posted in Zope >archive mailing lists and bug reports, but no solution or patch. Does >anyone know of a fix? Thanks. >

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Re: [Zope] Imorting Dynamic Pic into Zope
by Jeff Rush 28 Oct '99

28 Oct '99

On Wed, 27 Oct 1999 17:08:49 -0500, Stephan Richter wrote: >I hav a problem: >I am generating with PIL or GD an image using an external method. The picture >gets saved on the local File System. How can I import the picture into Zope, so >I can display it. (Note: The picture has a short lifetime and it is not >necessary to add it to the ZODB.) Since you are comfortable with external methods, just do the following in yours: from ImageFile import ImageFile <snip rest of your external method and decide whether to freshen image> ... return ImageFile('/my/image/dir/yourimage.gif', globals()) -Jeff Rush

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RE: [Zope] Front door on the Zope web site (Was Re: [Zope] SmartW orker)
by Jay, Dylan 28 Oct '99

28 Oct '99

> -----Original Message----- > From: Oleg Broytmann [mailto:phd@phd.russ.ru] > Sent: Wednesday, October 27, 1999 22:57 > To: Paul Everitt > Cc: Zope Mailing List > Subject: Re: [Zope] Front door on the Zope web site (Was Re: [Zope] > SmartWorker) > > > On Wed, 27 Oct 1999, Paul Everitt wrote: > > This is a very, very important thread to me. I'm looking for two > > things: > > > > o What questions should the Zope.org home page, and pages > > one click away, answer? > > > > o What are some effective ways to answer those questions? > > Currently Zope.org oriented primarily toward Zope > developers. If you > want to restructure the site to attract business eyes, I think the > following questions are important: > > Q1. Frontdoor: What is Zope, how it can improve your business, why > opensource platform better suites your needs. > > > And some parts of answer for Q1: > > Zope is free, open-source component-based > object-oriented Web application platform. > > Zope can improve your business by allowing you to develop your Web > applications easily, with rights tools. Zope is free, thus making your > applications cheaper. Zope is open-sourced, thus allowing > your developers > to understand every aspect of its internals. Zope conforms to > standards. > Zope talks HTTP/FTP/WebDAV/FastCGI/etc protocols. I think you need more detail than that. In a seminar I was going to give to the lucent web comunity (but due to funding this fell though), I put a lot of thought into what were the main advantages for my use of Zope. I came up with the following: · Maintainability through ZOPE's unique object database that enables a natural separation of data, business logic and presentation, allowing flexible 3-tier architectures. · Support for code reuse and 3rd party plug-in functionality. · Robust and high performance integrated SQL database support that makes creating dynamic data-driven applications simple. · Web based collaborative authoring. · No downtime when making large changes through use of versioning. · The advantages of using an open source and cross-platform technology. · Data intergrety through intergrated transactions. I think since Zope is coming from a more underdog position, a good analysis of where it is better than the 'comercial' competition would be good.

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CorruptedTransactionError
by John Glossner 28 Oct '99

28 Oct '99

I get the sinking feeling I'm in deep yogurt. Before getting this error, I was running Squishdot 0.3.2 (but I've made edits so it is not a pure Squishdot). I have been happily using 0.3.0 for a few days. This afternoon (with no know changes made - but I won't swear to it), I was all of a sudden unable to access my Squishdot site. I got KeyError (which is appended below since it still happened to be cached in my browser). I could still access other parts of my site. Then, after looking around for what could have caused this, I decided to try to restart Zope. Now I can not restart Zope and it says my Data.fs is corrupt. My question is: Is there anyway to fix this? Obviously, I can rename Data.fs and Zope will restart. However, I want to rescue everything I can out of Data.fs. Thanks, John Zope startup errors: -------------------- Traceback (innermost last): File "/usr/local2/packages/zope/Zope-2.0.1-src/z2.py", line 375, in ? exec "import "+MODULE in {} File "<string>", line 1, in ? File "/usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Zope/__init__.py",line 109, in ? DB=ZODB.FileStorage.FileStorage(Globals.BobobaseName) File "/usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/FileStorage.py", line 287, in __init__ self._pos, self._oid, tid = read_index( File "/usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/FileStorage.py", line 1212, in read_index name, pos) File "/usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/FileStorage.py", line 214, in panic raise CorruptedTransactionError, message ZODB.FileStorage.CorruptedTransactionError: /usr/local2/packages/zope/Zope-2.0.1-src/var/Data.fs incorrect previous pointer at 7355907 Squishdot Error: ---------------- Error An error has been encountered. Please contact John Glossner Error Type: KeyError Error Value: Troubleshooting Suggestions This resource may be trying to reference a nonexistent object or variable . The URL may be incorrect. The parameters passed to this resource may be incorrect. A resource that this resource relies on may be encountering an error. For more detailed information about the error, please refer to the HTML source for this page. If the error persists please contact the site maintainer. Thank you for your patience. Traceback (innermost last): File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 214, in publish_module File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 179, in publish File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Zope/__init__.py, line 201, in zpublisher_exception_hook (Object: ElementWithAttributes) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 165, in publish File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: index_html) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZPublisher/Publish.py, line 102, in call_object (Object: index_html) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/OFS/DTMLMethod.py, line 145, in __call__ (Object: index_html) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: index_html) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/OFS/DTMLMethod.py, line 141, in __call__ (Object: site_header) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/DocumentTemplate/DT_String.py, line 502, in __call__ (Object: site_header) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Products/Squishdot/Squishdot.py, line 801, in site_item_list (Object: ElementWithAttributes) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Products/Squishdot/Squishdot.py, line 781, in site_id_list (Object: ElementWithAttributes) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Products/Squishdot/Squishdot.py, line 735, in id_list (Object: ElementWithAttributes) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Products/Squishdot/Squishdot.py, line 724, in rev_id_list (Object: ElementWithAttributes) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/Products/Squishdot/Squishdot.py, line 724, in <lambda> File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/Connection.py, line 390, in setstate File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/FileStorage.py, line 463, in load (Object: /usr/local2/packages/zope/Zope-2.0.1-src/var/Data.fs) File /usr/local2/packages/zope/Zope-2.0.1-src/lib/python/ZODB/FileStorage.py, line 439, in _load (Object: /usr/local2/packages/zope/Zope-2.0.1-src/var/Data.fs) KeyError: (see above)

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