May 2000 - Zope-Dev - Zope lists

Zope Filesystem
by Christian Robottom Reis 15 May '00

15 May '00

Sorry if this is brought up excessively. I'm wondering if we have any ongoing project to provide Zope with a filesystem driver for Linux. I understand there's the question of object semantics being mapped onto files, but AFAICS as soon as that's decided it's a relatively easy task, no? There's already an FTP interface for Zope, and IIRC there _is_ something like a ftpfs either developed and dead or moving along slowly. This perhaps could serve as a temporary kludge? The main vantages are freedom from the Web Editing interface, which isn't the greatest - at least till we get a vi-binded textarea on a browser, which IMHO isn't coming very soon, and freedom to use whatever revision control tools we'd like. I understand objects themselves wouldn't be supported, but since DTML documents are plain text, they at least would work fine, excluding attribute/permission trouble. This is not unsolvabale, AFAICS. [Another idea would be a plugin or module for editors - vim comes to mind - which allows you to post the data to a webserver on a write. This is more complex and is a 1-per-client thing, so I'm not sure it's that interesting]. Comments? Cheers, -- _/\ Christian Reis is sometimes kiko(a)radiumsystems.com.br \/~ suicide architect | free software advocate | mountain biker

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RE: [Zope-dev] zope + apache + webdav
by Brian Lloyd 15 May '00

15 May '00

> I've got a zope who turn on my apache server, and i want use webdav. > Is anybody know how to change the httpd.conf to use webdav > protocol to > work with zope through apache ? Hi Steve, If you want to run through apache, you need to apply a patch to mod_cgi.c to get apache to defer to Zope's WebDAV handling. The reason is that clients send an OPTIONS request to the server to ask if the server supports WebDAV. If you ask ZServer directly, it will answer yes, but if you ask through Apache, the request gets intercepted by some code in Apache's mod_cgi module, which prevents Zope (or any other back-end system that goes through the cgi machinery) from responding to the request. I've reported this to the Apache group, but they seem to think that this is not a bug and don't plan to change it. :( I've attached a patch that you can apply to mod_cgi.c that should allow OPTIONS requests to pass through to Zope. Brian Lloyd brian(a)digicool.com Software Engineer 540.371.6909 Digital Creations http://www.digicool.com

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Probelms with POST
by fog＠mixadlive.com 15 May '00

15 May '00

Hi *, we are having a little problem with a form that let you upload to a server mp3 files using zope. The form uses a standard INPUT with TYPE file and is multipart-formdata encoded. After about a minute apache gives up with the error: The proxy server received an invalid response from the upstream server. Note that apache communicates with zope via mod_proxy. Does anybody knows if zope has limitations on post data size? thanx, federico -- Federico Di Gregorio MIXAD LIVE System Programmer fog(a)mixadlive.com Debian GNU/Linux Developer & Italian Press Contact fog(a)debian.org 99.99999999999999999999% still isn't 100% but sometimes suffice. -- Me

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Return anything but strings from a method??
by Thomas Weholt 13 May '00

13 May '00

Hi, I got a method in a product that should be able to return a list, a tuple or a dictionary but I cannot seem to use them in the same way as in plain python. Is there anything I should be aware of? I got a disk-based dictionary ( Berkley DB ) in which I`ve stored several customized classes? If I return a list of objects like this, how could I access this in DTML-code? If somebody could give me an example on how you can return a little more than just a string from a method to a dtml-document/method I`d be grateful. At the moment nothing but plain strings seem to work. Thomas

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broadtree.c
by Robin Becker 13 May '00

13 May '00

I see checkins related to broadtree.c, but my CVS update doesn't seem to pick these up. -- Robin Becker

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Product Distributions
by Chris Withers 12 May '00

12 May '00

Hi, I've just finished putting together a ZWiki Web product and thought I'd try and use the 'Create a Distribution Archive' form on the 'Distribution' tab to get a nice .tar.gz It works, but when I install the distribution and restart Zope, the product doesn't appear in the available objects drop-down list. Is this a bug or has the 'Distribution' tag been deprecated? cheers, Chris

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Permissions
by Chris Withers 12 May '00

12 May '00

How come Permission objects don't support the paste operation? Chris

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Setting Zope up under another Web server
by Titus Brown 12 May '00

12 May '00

Hi, folks. How difficult would it be to install Zope under another Web server, e.g. AOLserver? Am I correct in believing that the "persistent CGI" interface is all one needs to have working? We've been working on a project to add a Python language module into AOLserver, and I quite like some aspects of Zope. It strikes me that with an internally threaded Web server like AOLserver, and a Python implementation that correctly interacts with the threads, it should be possible to add Zope in quite easily. But I don't want to delve into the internals of Zope without having some wiser heads say yeah. Thanks, --titus P.S. If you want to question the use of AOLserver, then please let's conduct that discussion off-list... thanks. -- Titus Brown, titus(a)caltech.edu

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Versions in ZODB
by nw_moriarty 12 May '00

12 May '00

I'm using ZODB outside Zope and was wondering if anyone has a simple example of the use of version ie commitVersion, modifyInVersion and undo. Thanks Nigel --== Sent via Deja.com http://www.deja.com/ ==-- Before you buy.

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Question about ZEO
by Ralf Grosse-Kunstleve 12 May '00

12 May '00

We are currently evaluating which database to use in a large scientific, Python-based application. At the moment the best candidate seems to be ZODB. However, we would like to use socket-based communication between a database server and a moderate number of clients (typically 2-100) in a heterogeneous network. E.g.: Machine 0: ZODB server. Machine 1: Long-running numerical application, gets input parameters from ZODB server, sends results back. Machine 2: Client running a GUI to display (intermediate) results obtained from ZODB server. Also used to send new input parameters to ZODB server. I.e., where we are now using db = DB(FileStorage('junk.fs')) root = db.open().root() root['somekey'] = myobject1 get_transaction().commit() we would like to do something like db = DB(ClientStorage('hostname', port_number)) and the other code unchanged. Will ZEO do this for us? Is ZSS the server we want, and will there be a ClientStorage class which can be plugged in instead of FileStorage? Thank you in advance, Ralf ====================================================================== | Ralf W. Grosse-Kunstleve | Lawrence Berkeley National Laboratory | | Scientist | One Cyclotron Road | | Building 4, Room 231 | Mail-Stop 4-230 | | Tel: 510-486-5713 | Berkeley, CA 94720 | | FAX: 510-486-5909 | USA | ====================================================================== --== Sent via Deja.com http://www.deja.com/ ==-- Before you buy.

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