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extensions (.html .gif), security, and multilanguage sites
by CARL ROBERT BLESIUS 16 Feb '01

16 Feb '01

Hello! We are creating free internet based public health resource, which will be module based and tailored, covering a wide range of diseases. The first will be a skin cancer module. I am really excited about Zope, it seems to be just what the doctor ordered (no pun intended). Some general Zope beginner questions: - file extensions... will we have problems programming with python if we use extensions (e.g. index.html melanoma.jpg) in Zope 2.3 or is there a way around it? We do not want to confuse users (index_html!?). - the sites we are building will be multilingual (e.g. titles in 4 languages) what is the best way to deal with this (we want to use the templating power of Zope => Language of content determines template)? A ZClass with customized DTML Documents and DTML Methods which have special properties? The properties that come to mind at the moment are: - Language - Template (According to branch of site and language) - Author - Author email - Publish (Yes or No) One concern for example is the multilingualism of breadcrumbs and site maps (we want them to be dynamically generated). -Security - any tips on security? When using the tree function for example how do I prevent certain folders from being listed? What is important when running zope as far as security goes? Where do I watch for security problems with zope? Anyone have good ideas or experience? Please any tips would be greatly appreciated. Carl Blesius www.dermis.net and www.med.uni-heidelberg.de cblesius(a)ix.urz.uni-heidelberg.de P.S. Are there any qualified Zopitistas out there who would be willing to answer questions like the ones above and provide some practical suggestions (We need some experienced help at the start of our project to help with some concrete problems and this mailing list is to big to ask questions on a regular basis)? If so please contact me: cblesius(a)ix.urz.uni-heidelberg.de and I will provide some more detailed information.

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Avoiding AttributeErrors in SkinScript
by Itai Tavor 16 Feb '01

16 Feb '01

Hi, I have the following SkinScript (greatly simplified): WITH Parties.getPersonForEmail(self.id) COMPUTE party=RESULT WITH self.party COMPUTE member_id=email If getPersonForEmail returns None, the second clause returns AttributeError: party. If I change the first clause to party=RESULT or '', I can change the second to: WITH (self.party is not '') and self.party.email or '' COMPUTE member_id=RESULT But this is both ugly and bad - in the real script I have many clauses using party, so repeating this nonsense in all of them is very wasteful, and also it would be better if party is set to None when a Person is not found. But if party is set to None, the DataSkin considers it to be undefined, so I can't do WITH (self.party is not _.None)... Is there any nicer way of preventing AttributeErrors in clauses that try to access an attribute that was set to None? TIA, Itai -- -- Itai Tavor -- "Je sautille, donc je suis." -- itai(a)optusnet.com.au -- - Kermit the Frog -- -- 'Supposing a tree fell down, Pooh, when we were underneath it?' -- -- 'Supposing it didn't,' said Pooh after careful thought. --

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performance problem
by Torsten Gallmeister 16 Feb '01

16 Feb '01

hello, could anybody help? Have a perforemance prob. The DB (Data.fs) size is 25 MB. If using ZOPE "normal" the process will be around 35 MB. Ok. Have sopme pdf documents in the presentation. I reduced the DB size with the LocalFS Product. After a search-engine scan over my site the process grows up to 100 MB and more.... The server slows down. ...and there will be some doc's more in future. My question: is there a way to keep the process-size a little smaller? Thanks, Torsten.

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problems with ftp and 2.3.0
by Oliver Frommel 16 Feb '01

16 Feb '01

Hello, there seems to be a problem with FTP in Zope 2.3.0 (on Linux Redhat 6.0). I can list the contents of the root dir (however the Zope console shows an error "PROBLEM(100) ZServer unhandled connect event"). If I want to change to certain subdirs I get "550 No such directory", if I try to list their contents the error message is "550 Could not list directory". These subdirs are just regular Folders but one of them contains custom ZClass instances while the other contains DTML Documents/Methods, Images, External Methods, a User DB, a Catalog, a MailHost and a MySQL DB Conn and a LocalFS (already patched) so i guess it _should_ be listable, right? Of course both Folders are listable in the HTML management interface. Other Folders in the root dir are listable too. Any idea what's wrong or how to debug the problem? Thanks --Oliver

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How to programmatically add Product and ZClass constructor?
by Dirksen 16 Feb '01

16 Feb '01

Hi, Is it possible to do that? I'm thinking of a wizard to help people to build ZClasses. Cheers Dirksen __________________________________________________ Do You Yahoo!? Get personalized email addresses from Yahoo! Mail - only $35 a year! http://personal.mail.yahoo.com/

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Re: [Zope] performance problem
by Torsten Gallmeister 15 Feb '01

15 Feb '01

Hallo, Unfortunatly this doesn't solve the problem, ...thanks anyway. After a view of a site which contains a URL + size of a pdf-doc(4MB), the memory usage of the process grows up to 4 MB more. I think ZOPE loads all object attributes (including data) to it's cache. So, if a searchengine spiders my site everything goes into the cache. I changed to store the docs in the LocalFS-Prod. to disable this caching behaviour :-( . I know there where some threads about caching and performance in this discussion-group but I cant find a solution for me. Is there a way to disable caching for products/attributes/objects ? I think this would be nice for some sites which have not too much requests but a large amount of data. Hope you can understand my english, thanks for any suggestions, Torsten. > Author: Torsten Gallmeister > Date: 01:19 PM Yesterday > > >hello, > > >could anybody help? > >Have a perforemance prob. The DB (Data.fs) size is 25 MB. If using ZOPE > >"normal" the process will be around 35 MB. Ok. > >Have sopme pdf documents in the presentation. I reduced the DB size with > >the LocalFS Product. After a search-engine scan over my site the process > >grows up to 100 MB and more.... The server slows down. ...and there > >will be some doc's more in future. > >My question: is there a way to keep the process-size a little smaller? > > >Thanks, > > Torsten. > > Sure, just go into the edit screen for your LocalFS object and uncheck the > 'include in catalog' box. Cataloging a large volume of local files is very, very > expensive, as the documentation warns. > > Hope this helps. > > cheers, > --jfarr

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No Searchable Objects!
by Ben Ocean 15 Feb '01

15 Feb '01

Hi; I can't make searchable objects! I either get an HTTP 500 error or I get >>> No searchable objects Traceback (innermost last): File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 222, in publish_module File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 187, in publish File /apache/Zope-2.2.4-linux2-x86/lib/python/Zope/__init__.py, line 221, in zpublisher_exception_hook File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 171, in publish File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: manage_addZSearch) File /apache/Zope-2.2.4-linux2-x86/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: manage_addZSearch) File /apache/Zope-2.2.4-linux2-x86/lib/python/Shared/DC/ZRDB/Search.py, line 100, in manage_addZSearch ValueError: (see above) <<< Wazzup? TIA, BenO

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content-type (was Re: export to excel)
by Lee Reilly CS1997 15 Feb '01

15 Feb '01

> Here's some crude code to do what you want. Note that some lines are > broken by my emailer and excel may be picky about extra white space. > > yourMethodName.csv: > > Content-type: application/ms-excel <snip> Hi, I've developed some import/export functions myself taking database info to/from CSV and/or tab delimited text files. Originally, I just displayed the output to the user directly (in text form) but as I've seen from the past few messages, I can have it displayed directly in Excel. I have had success with this in IE but Netscape is giving me "jip"... Simplified version below: Id: exportDirectlyToExcel.csv Title: exportDirectlyToExcel.csv -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ <dtml-in get_matrics_from> <dtml-var expr="export(_.this, classcode, matric)"> </dtml-in> -+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ When I open this document in IE it opens Excel automatically but it only opens the text representation when I open it Netscape. I presume that adding a content-type would remedy this but where and how do I add it? "Content-type: application/ms-excel" at the head of the page doesn't help. Including it in <HEAD><META> tags isn't helping either. Can anyone tell me the solution? Here's a sample output... 9728430, Lee, Reilly, lreilly, 8, 2, 0, 0, 0, 0, 0, 0, 0, *, *, 0, 0 9702709, Gordon, Macleod, gmacleod, 25, 0, 3, 0, 0, 0, 0, 0, 0, *, *, 0, 0 9702075, Alan, Hamilton, ahamilto, 7, 0, 0, 4, 0, 0, 0, 0, 0, *, *, 0, 0 9712346, Alec, Littlechild, alittlec, 5, 0, 0, 0, 5, 0, 0, 0, 0, *, *, 0, 0 9712347, Fernando, Ricksen, fricksen, 8, 0, 0, 0, 0, 6, 0, 0, 0, *, *, 0, 2 9712349, Arthur, Numan, anuman, 3, 0, 0, 0, 0, 0, 7, 0, 0, *, *, 0, 2 9712351, Chris, Sutton, csutton, 10, 0, 0, 0, 0, 0, 0, 8, 0, *, *, 0, 2 9712352, Claudio, Cannigia, ccannigi, 12, 0, 0, 0, 0, 0, 0, 0, 9, *, *, 1, 0 9712350, Henrik, Larsson, hlarsson, 9, 0, 0, 0, 0, 0, 0, 0, 0, *, *, 0, 0 What can I add to this to make Netscape realise it's an Excel file and open in accordingly? Cheers in advance ;-) Lee

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Simple problem (probably)...
by Jason.Jones＠awl.com 15 Feb '01

15 Feb '01

I am new to Zope and attempting to use an external method as described in the zope book, unfortunately I keep getting the following error: Traceback (innermost last): File E:\AWPROS~1\lib\python\ZPublisher\Publish.py, line 222, in publish_module File E:\AWPROS~1\lib\python\ZPublisher\Publish.py, line 187, in publish File E:\AWPROS~1\lib\python\Zope\__init__.py, line 221, in zpublisher_exception_hook File E:\AWPROS~1\lib\python\ZPublisher\Publish.py, line 171, in publish File E:\AWPROS~1\lib\python\ZPublisher\mapply.py, line 160, in mapply (Object: manage_addExternalMethod) File E:\AWPROS~1\lib\python\ZPublisher\Publish.py, line 112, in call_object (Object: manage_addExternalMethod) File E:\AWPROS~1\lib\python\Products\ExternalMethod\ExternalMethod.py, line 131, in manage_addExternalMethod File E:\AWPROS~1\lib\python\Products\ExternalMethod\ExternalMethod.py, line 179, in __init__ (Object: hello) File E:\AWPROS~1\lib\python\Products\ExternalMethod\ExternalMethod.py, line 202, in manage_edit (Object: hello) File E:\AWPROS~1\lib\python\Products\ExternalMethod\ExternalMethod.py, line 209, in getFunction (Object: hello) File E:\AWPROS~1\lib\python\App\Extensions.py, line 217, in getObject (Info: ('E:\\awprosite\\Extensions\\Example.py', 'Example')) SyntaxError: (see above) The extension is indeed named "Example.py" and the method is the example from the book: def hello(name='world') return "Hello %s" % name I'm using Zope 2.3 on Windows NT. Any ideas? Thanks, Jason Jones

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RE: [Zope] ZClasses and automatic sub-objects
by Farrell, Troy 15 Feb '01

15 Feb '01

Yes, it is possible. I do it all day. My lines in the constructor are as follows: <dtml-call expr="propertysheets.StreamingEventProperties.manage_editProperties(REQUEST) "> <dtml-call expr="manage_addProduct['OFSP'].manage_addFolder('logs', 'Log Files')"> <dtml-call expr="manage_addProduct['OFSP'].manage_addFolder('analysis', 'Log File Analysis')"> If I may, I'll piggyback on your question. I have an ObjectManager derived ZClass. It has a folder 'logs' as above. Is it possible to Catalog the contents ('data') of a DTML method contained therein? -----Original Message----- From: Tim Moore [mailto:tmoore@tembel.org] Sent: Thursday, February 15, 2001 4:17 PM To: zope(a)zope.org Subject: [Zope] ZClasses and automatic sub-objects I have an ObjectManager-derived ZClass. I would like all instances of this ZClass to have a subobject added to them automatically at creation time. This subobject has a fixed id in each instance (in this case, I want to add Image objects with an id of "logo"). Preferably, this object would a permanent part of each instance...you wouldn't be able to delete or rename it in any instance, but you would be able to edit it (e.g., upload image data). So, essentially it would act analogously to a property sheet. Is this even possible? I asked this question a couple of weeks ago and never got a response. -- Tim Moore _______________________________________________ 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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