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Zope Server Crashes
by Michelle Jacobs 06 Nov '01

06 Nov '01

Hi, We've been running Zope on Linux since March 2001 and we've been quite pleased - even put our company web site on Zope. However, over the past few weeks we've experienced more and more frequent server crashes until finally, out of desperation, we upgraded from 2.3.2 to 2.4.2. The upgrade seemed to solve the problem temporarily, but we've been experiencing more and more crashes over the last few days. We've now installed a script which checks for failed requests and restarts Zope in the event of a crash, but the problem is only becoming worse. Server logs show only gaps and not much in the way of useful information while the server was down. Anyone out there have experience of this sort of thing with Zope or can offer any suggestions? Very Gratefully Yours, Michelle Jacobs -- Michelle Jacobs - Development Manager - Frontier Internet Services Limited Tel: 029 20 820 005 Fax: 029 20 820 037 http://www.frontier.net.uk Statements made are at all times subject to Frontier's Terms and Conditions of Business, which are available upon request.

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Get Propertie-Content from a File
by sbergmann＠weblog.de 06 Nov '01

06 Nov '01

I want to create a DTMLDocument which has the Content from a File on the local filesystem. That´s the same what Zope can do in the manage- mode but in my case it doesn´t match. I have createth following form: <form action="homepage_menue_links_addForm2"><table> <tr><th>Id</th> <td><input type=text name=temp_id></td> </tr> <tr><th>Titel</th> <td><input type=text name=temp_title></td> </tr> <tr><td></td> <tr><th>Beschreibung</th> <td><textarea name=temp_beschreibung rows="10" cols="50"></textarea></td> </tr> <td><input type=submit value=" Add "></td></tr> </table></form> Then the following Form is called: <FORM ACTION="homepage_menue_links_add" METHOD="GET" ENCTYPE="multipart/form-data"> ..... <INPUT TYPE="file" NAME="temp_file:string" SIZE="25" VALUE=""> ... The following method should add a DTMLDocument with the content of the file: <dtml-let new="homepage_menue_links.createInObjectManager(REQUEST ['temp_id'],REQUEST)"> <dtml-call expr="new.manage_addDTMLDocument (temp_id,temp_title,temp_file)"> ... </dtml-let> But Zope adds a DTMLDocument with the path of the file, like 'C:\folder\file.html' Does anybody know what is wrong? Steffen Steffen

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parameters
by Hout, Eric van den 06 Nov '01

06 Nov '01

Hi, I'm rather new to zope, so I a have a question which could be considered as "basic knowledge". Can anyone tell me how to pass parameters? I have a gadfly db and a record form the db displayed in an html page. In a hidden field I stored the primary key number of the record. On submitting the form I'ld like to pass this key (I think it is already passed by means of the hidden field) to another form, which takes care of the update functionality. When a user submits this second form, an sql method will run (which also need that key) to update the record. Kind regards. Eric --------------------------------------------------------- Eric van den Hout Webmaster/Application management MS-Office Levob Bank & Insurances PO box 444 3830 AL Leusden Netherlands telnr: 31 33 434 44 44 faxnr: 31 33 434 43 33 ericvdhout(a)levob.nl

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can't add items of my own class
by Steffen Hausmann 06 Nov '01

06 Nov '01

Hi, i am running zope 2.4.2 and anything works fine. but when i tryed to update it to zope 2.5.0b2 i had some strange problems... i couldn't add the items of my own class anymore. i just got the following error: Error Type: TypeError Error Value: function takes at most 2 arguments (3 given) Traceback (innermost last): File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/ZPublisher/Publish.py, line 223, in publish_module File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/ZPublisher/Publish.py, line 187, in publish File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Zope/__init__.py, line 226, in zpublisher_exception_hook (Object: VeranstaltungsItem_factory) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/ZPublisher/Publish.py, line 171, in publish File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/ZPublisher/mapply.py, line 160, in mapply (Object: VeranstaltungsItem_add) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/ZPublisher/Publish.py, line 112, in call_object (Object: VeranstaltungsItem_add) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/OFS/DTMLMethod.py, line 195, in __call__ (Object: VeranstaltungsItem_add) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/DocumentTemplate/DT_String.py, line 545, in __call__ (Object: VeranstaltungsItem_add) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/DocumentTemplate/DT_With.py, line 148, in render (Object: VeranstaltungsItem.createInObjectManager(REQUEST['id'], REQUEST)) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Products/ZCatalog/CatalogAwareness.py, line 184, in index_object (Object: wd) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Products/ZCatalog/ZCatalog.py, line 552, in catalog_object (Object: inputFilesCatalog) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Products/ZCatalog/Catalog.py, line 439, in catalogObject File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Products/PluginIndexes/TextIndex/TextIndex.py, line 380, in index_object (Object: title) File /usr/local/ZopeZoo/Zope-2.5.0a2-linux2-x86/lib/python/Products/PluginIndexes/TextIndex/GlobbingLexicon.py, line 312, in Splitter TypeError: (see above) has someone an idea how to fix this? i just works with zope 2.4.2. MfG Steffen

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Download counter
by e-Musty 06 Nov '01

06 Nov '01

Could anyone tell me how to implement a very single download counter? I mean the followings: Assume you have a folder named media with subfolders such as audio, video, pic. All subfolderes might have another subfolders, e.g. mp3, wav, ra for audio etc. All folder might have files, not just the lowest one. The tricky thing I cannot figure out is how to write a script able to maintain download counts. What I've tried is that I've made the following change to my ZCatalog's search result page: <dtml-in aCatalogue> <a href="fileDownload('<dtml-var sequence-item>')">title_or_id</a><br> </dtml-in> where fileDownload would be a Python script doing the stuff by checking the file's properties. If the file in question has a dwc attribute, it increases its value by one, if does not have, it creates the dwc property and sets its value to 1. The problem is that I cannot reach the object passed to the script. The question is, how to access that passed File object from Python. Can anyone help me?

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Passing Variables Through Multiple Forms
by Ben Ocean 06 Nov '01

06 Nov '01

Hi; What is the best way to pass variables defined in one form to a second form? Is there a tutorial available (couldn't find a HOW-TO). TIA, BenO

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Putting Zope into a tailspin can kill a whole Linux Server
by BZ 06 Nov '01

06 Nov '01

This is the second time I have done this and I just thought the list should know. Once in awhile (every six months or so) I send Zope a request that it just cannot handle. At that point (after waiting for a good five minutes) I cancel the request by stopping the browser. This has twice resulted in Zope spinning out of control (taking up more and more CPU) untill it kills the entire server box. How does it kill a Linux box you say? Well, it kills off Apache, kills off SSH (no more remote access), kills off FTP. They all just become unresponsive. Here are the two times it has happened: - Zope 2.3.2, on RH Linux 7.0 384 MB Ram, 650 MHz Pentium: I tried packing the database, stopped it and tried repacking it. - Zope 2.4.2 (same hardware): I tried creating a VERY LARGE Poll graph (10,000) and stopped it while it got going. I don't know if this is a bug or whatever, but it could be a problem. Zope can certainly be sent into a tailspin. BZ

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watching Zope internals.
by Clark OBrien 06 Nov '01

06 Nov '01

I am interesting in watching the internals of Zope starting from the point where it receives an http request. Unfortunately I am stuck with doing this on w2k and I am wondering if I need to download the source and compile the c modules to do this- if so is there a freeware c compiler I can use. What file would be my starting point. Clark

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VHM and hard-wired URLs generated by stock Zope code
by Richard Barrett 06 Nov '01

06 Nov '01

Running Zope 2.3.3 with python 1.5.2 I run Zope on a private IP numbered server for users on our LAN but expose some parts of the Zope tree via Apache using ProxyPass and VHM to adjust the URLs on our pages. The problem I'm having is with some of the hard-wired URLs produced by some of the standard Zope code. For instance, the dtml-tree tag generates things like: <IMG SRC="/p_/mi" ALT="-" BORDER=0> The ZMI also does the same although that is less of a problem as, in general, I do not use the ZMI through the Apache proxy. But I might want to in the future. I do not want to use extra ProxyPass directives in my Apache config to handle these "unadjustable" hard-wired URLs. Aside from hacking at the source code does anyone know of a clean solution for this problem.

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Programatically changing the owner when adding a zclass instance...
by Rob Foster 06 Nov '01

06 Nov '01

Hi there, I've got a script that creates an instance of a zclass and creates an ID based on the user's name from a form: context.REQUEST.set('id', request.form['nameFromForm']) myContext= context.members.manage_addProduct['MyProduct'] myContext.myZclass_add(myContext,context.REQUEST, NoRedir=1) I want to also set the owner with the same request variable "nameFromForm" I've tried to find some example code with no luck... there are tons of examples of how to set roles and permissions, but not ownership... Can this even be done? Any help would be much appreciated. Thanks, Rob

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