October 2000 - Zope - Zope lists

Get file contents.
by Jason C. Leach 30 Oct '00

30 Oct '00

hi, I pass a zope file object (just plane text) to an external method. The file consists of a list of lines of text. I'd like to extract those lines from the file and put 'em in a list. Can anyone help with the extraction method? Thanks, j. ...................... ..... Jason C. Leach ... University College of the Cariboo. ..

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Re: [Zope] Displaying Folder Contents.
by Dieter Maurer 30 Oct '00

30 Oct '00

Jason C. Leach writes: > If I have a mail folder Projects, and in it Proj1, Proj2, ... I'd like to > pass the folder to an external method, and have the method get a list of > all the files inside (bla.jpg, bla_large.jpg). Can somone help w/ > fetching a list of the folder contents? Have a look at "ZopeFind" (--> ZQR (Zope quick reference) at URL:http://zdp.zope.org) Dieter

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ExtensionClass peculiarity (was: [Zope-PTK] Multiple Inheritance and the Portal Base classes.) (was: [Zope-PTK] Multiple Inheritance and the Portal Base classes.)
by Dieter Maurer 30 Oct '00

30 Oct '00

Steinar Rune Eriksen writes: > In other Python programs, calling Parent.__init__(self) works fine, but when > running through Zope in this context > > Error Type: TypeError > Error Value: unbound method must be called with class instance 1st argument Have a look at the "ExtensionClass" documentation (-> zope.org) ExtensionClass is not completely compatible with Python: if a class "C" inherits from an extension class "E" and from a normal Python class "P", then Python does not recognize "C" as a subclass from "P". The mentioned documentation tells you, that there is a method "InheritedAttribute" to work around this problem. Dieter

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Re: [Zope] How to display PDF files
by Dieter Maurer 30 Oct '00

30 Oct '00

Alan Johnston writes: > One (apparently simple) thing I cannot find a way to do is link to a PDF > file. I believe that everything ZServer serves up must come from the Zope > Object Database (right? wrong?). You may use the products "LocalFS" or "ExternalFile" to access files inside the file system from Zope. > At any rate, how do you get ZServer to > send a 'raw' PDF file to the browser so that the browser's Acrobat plug-in > can display it? I tried creating 'File' and 'Image' objects. That's > obviously not it. The "file" should be it. Maybe, you must set the property "content_type" correctly (when Zope guessed wrong based on the filename extension). Dieter

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Zope & Apache/ProxyPass : environment variables
by Aaron Straup Cope 30 Oct '00

30 Oct '00

Hi, Does anyone know if it is even *possible* to pass environment variables (specifically REMOTE_USER) to Zope when it is set up behind Apache/ProxyPass. I've looked around the list archives, and the Apache docs and tried a bunch of different configs but nothing works. I'm starting to wonder if it's all in vain. Thanks,

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Re: [Zope] dtml-while
by Dieter Maurer 30 Oct '00

30 Oct '00

Diego Rodrigo Neufert writes: > Why there isnt a dtml-while function in Zope? > How to implement it with dtml? > how to do a simple while x != y in dtml? Because the Zope developers feared infinite loops created by dumb users or malicious hackers in "through the web" content. For the same reason, "_.range" has been cripled and the module "re" is not exposed. Dieter

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My Items will not show themself in manage_main (objectItems)
by Max M 30 Oct '00

30 Oct '00

I have made a product that inherits: "OFS.ObjectManager.ObjectManager" and so should be able to contain other object. I have given the product a manage option: {'label':'Contents', 'action':'manage_main'} This is inherited from ObjectManager, To make it possible to add content to my product. But when I add ie. a dtml method to my folderish object, it does it allright, and the document gets added. I know because I can see it directly when going to it's url. And if I try to add another document with the same name I get an error saying that the id is allready used. But the Item doesn't show up in Itemlist on the "manage_main" page. So I cannot edit the items that I have added. I only get the: "There are currently no items in XXX" Why is this? is there any special methods or something that I need to create for the Items to show up in "objectItems". Max M. W. Rasmussen, Denmark. New Media Director private: maxmcorp(a)worldonline.dk work: maxm(a)normik.dk ----------------------------------------------------- Specialization is for insects. - Robert A. Heinlein

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Re: [Zope] DCOracle + LOB
by Andreas Jung 30 Oct '00

30 Oct '00

On Wed, Oct 18, 2000 at 02:11:05PM +0200, Francisco José Esteban Risueño wrote: > If you know what type of data are you storing in the lob column, you can > use dmbs_lob package in order to insert and retrive data from the > original format into de lob format. We are use this techique succesfully > to insert/select text into/from a clob column. LOB support for Oracle 8i is broken in DCOracle. As a workaround we use stored procedures written in Java. They can be called from DCOracle. -- Andreas

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Re: [Zope] normal result with acquisition?
by Dieter Maurer 30 Oct '00

30 Oct '00

Tom Deprez writes: > Assume following : > > Folder1 > sql > show_abc > method_showdata > Folder2 > show_abc > > method_showdata has among it the following code : > > <dtml-with sql> > <dtml-in selectallcentres> > <table><tr><td> > <dtml-var show_abc> > </td></tr></table> > </dtml-in> > </dtml-with> > > 1) When you call this function from Folder1 : show_abc of folder1 is used > > 2) When you call this function from Folder2 : show_abc of folder1 is used > > --> what you wouldn't expect? This *IS* normal acquisition behaviour. I use the following rule of thumb: When Zope looks up a name "n" for object "o" in context "c", then Zope lools for "n" in "o". If this fails, Zope walks up from "o" towards the root in search for "n". Only, if it does not find "n" on this route, it looks in the context "c" for "n". In your case, the object is "sql" and the name is "show_abc". The context is "Folder1" in the first and "Folder2" in the second case. But "show_abc" is found in both cases in the parent of "sql" -- without looking at the context. Dieter

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Re: [Zope] again: install Zope under Solaris 8
by Dieter Maurer 30 Oct '00

30 Oct '00

Jan-Thies Baehr writes: > .... Has anyone else > encountered problems installing Zope (in our case 2.2.2) under Solaris > 8? > Python is unable to import the ExtensionClass.... > .... > ImportError: ld.so.1: /usr/local/bin/python: fatal: relocation error: > file /mnt/disk2/homes/wklinik/Zope-2.2.2/lib/python/ExtensionClass.so: > symbol PyImport_ImportModule: referenced symbol not found I looks as though Python would not export its symbols to dynamically loaded objects. In earlier Solaris versions, this was the default behaviour. Other systems require a special linker option to make the symbols visible. Maybe, Solaris 8 does now require special actions, too. On Linux, the option is called "-export-dynamic". Maybe, you consult you linker manual. Dieter

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