November 2001 - Zope

Traversal issue...
by Rob Foster 06 Nov '01

06 Nov '01

Ok, here's the setup... I've got two adjacent folders: Folder A - This folder has a form that will allow users to edit the properties of a specific zclass instance that resides in Folder B. Folder B - This folder has a bunch of instances (each instance's id maps to the username of a user in the system) Now, the users each have a cookie with their username set... When they fill out the form in folder A, I want to update the instance in B that maps to them (based on the value of their cookie), but I can't seem to "get to" (traverse?) the right instance with either DTML or Python. Any help would be appreciated as always. Thanks, Rob

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problem with 2.4.3b1 and -t 0
by Robert Rottermann 06 Nov '01

06 Nov '01

I installed the 2.4.3 b1 beta (on top of a working 2.4.2) on my w2000 box As soon as I use the switch -t 0 (which I need for wing) Zope starts fine but does not respond. Robert

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Help
by Scott Kuei 06 Nov '01

06 Nov '01

Hi, I have created two dtml scripts to upload an image. The first script is to give the promp to users to upload their image and then call the second script as an action. But everytime when I click on the Sumit Query button, it just keeps loading non-stop. It doesn't give me any error messages, but just keep uploading. Can anyone help me? my scripts: Id: SubmitImage <dtml-var standard_html_header> <h2><dtml-var title></h2> <p>Upload a picture to the MGL Image Archive.</p> <form action="photoAction" method="post" enctype="multipart/form-data"> <p>Title: <input type="text" name="photo_title"></p> <p>Description: <input type="text" name="description"></p> <p>File: <input type="file" name="file"></p> <input type="submit"> </form> <dtml-var standard_html_footer> ---------------------------------------- Id: photoAction <dtml-var standard_html_header> <h2><dtml-var title></h2> <dtml-call expr="someFolder.addImage(id , title=photo_title , file=file , description=description )"> <p>The image submission is done successfully.</p> <dtml-var standard_html_footer>

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Erratic HTTP 500
by sean.upton＠uniontrib.com 06 Nov '01

06 Nov '01

I have an automated process that uses cron and wget to hit a method in Zope daily. Normally in wget, I first get a 401, which prompts wget to send basic auth, which it sends upon resending the request with the right user/pw in headers, and then gets a 200 (success) after a 15 to 20 minutes (it's a big, slow process). Lately, though, I have been getting an HTTP 500 almost instantaneously on occasion, and the logs seem to verify this. Retrying the process usually solves this problem, but I am trying to figure out why the 500 error is occurring. I am running Zope 2.3.2 with ZEO (1.0b3 + modifications from CVS earlier this summer), and one of my 2 ZEO clients is having this problem and not the other. I have squid in front of this setup for Virtual host support and Squid load-balances the 2 ZEO clients, and the requests, when sent to one of my ZEO clients works fine, but seems to fail every time. The box that seems to be having the problem seems to work fine in other respects. Anybody have any thoughts on what problems might trigger an HTTP 500 in Zope? Sean ========================= Sean Upton Senior Programmer/Analyst SignOnSanDiego.com The San Diego Union-Tribune 619.718.5241 sean.upton(a)uniontrib.com =========================

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lis index out of range on an PythonEM call ????
by Doyon, Jean-Francois 06 Nov '01

06 Nov '01

Hello, I have an external method that I call using: <dtml-with expr="getmap('177')" mapping> And all works fine ... But if I change that value 177 to 30516 I get : Error Type: IndexError Error Value: list index out of range I faily to understand why ... The value is actually passed as a string, which is what i want ... in the PythonEM, all that's done is a string concatenation: def getmap(id): mapserver = urlopen("http://www-gad2.ccrs.nrcan.gc.ca/cgi-bin/mapserv?map=/home/mapdata/ nac/"+id+".map&template=to_zope.html") <more code> Anybody know why this is happening and how to get around it? Thank you, Jean-François Doyon Internet Service Development and Systems Support GeoAccess Division Canadian Center for Remote Sensing Natural Resources Canada http://atlas.gc.ca Phone: (613) 992-4902 Fax: (613) 947-2410

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Backing up the Data.fs
by Alastair Burt 06 Nov '01

06 Nov '01

I have just sent a message to the list asking how to fix my corrupt Data.fs. Now I am wondering how I got into this mess. Until now I had always reassured myself that I can regnerate the Data.fs for any day in the past month. But it does not seem that is going to help me very much. My log file tells me that an instance of Zope came up on October 22 with one ConflictError and several CorruptedDataErrors. This Zope (or maybe another instance [1]) kept serving requests on the Data.fs for two weeks until the server crashed again. I now think that I will not be able to recover the data from these requests unless I plough through the source code to decipher the ZODB format and then cut and paste the transactions into a usable Data.fs by hand. So I have two questions for the list: 1) Is it, indeed, possible for Zope to keep serving requests from a Data.fs that will not be usable when Zope restarts? 2) How do people sleep at night knowing this to be the case? --- Alastair Footnotes: [1] I think my scripts to automatically start up Zope in event of a crash may have led to two instances of Zope trying to serve the same Data.fs.

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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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