August 2000 - Zope - Zope lists

Fourth Posting, is this really that difficult or have I been black balled :) balled :)
by Daniel Rusch 04 Sep '00

04 Sep '00

I've created a folderish product. When I select that product from the available objects list, thus creating an instance of that product, I can create objects like dtml document and dtml method in the new folderish object (very similar to what happens when you instantiate a folder object, you can have a dtml method created in the new folder). The question is why can't I create objects from the Products directory, such as Local File System????? The code below works great, I get a dtml document, two folders each with a dtml method in them.... HOW CAN I CREATE A LOCAL FILE SYSTEM OR ANY OTHER OBJECT FROM THE PRODUCTS DIRECTORY IN THIS MANAGE_ADD FUNCTION??????? def manage_addSimpleSite(self, id, title='', createNewFolder=0, createEditFolder=0, REQUEST=None): """Add a new SimpleSite object with id *id*. If the 'createNewFolder' and 'createEditFolder' parameters are set to any true value, an 'New sub Folder' and an 'edit sub Folder' objects are created respectively in the new SimpleSite. """ ob=SimpleSite() ob.id=id ob.title=title self._setObject(id, ob) try: user=REQUEST['AUTHENTICATED_USER'] except: user=None ob.manage_addDTMLDocument(id='index_html', title='') if createNewFolder: if (user is not None) and not ( user.has_permission('Add User SimpleSites', self)): raise 'Unauthorized', ( 'You are not authorized to add User SimpleSites.' ) ob.manage_addFolder(id='New'+id, title='', createPublic=1) if createEditFolder: if (user is not None) and not ( user.has_permission('Add Documents, Images, and Files', self)): raise 'Unauthorized', ( 'You are not authorized to add DTML Documents.' ) ob.manage_addFolder(id='Edit'+id, title='', createPublic=1) if REQUEST is not None: return self.manage_main(self, REQUEST, update_menu=1) Thanks, Dan

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Not like ASP complaint - any good answers
by Sean McGrath 04 Sep '00

04 Sep '00

All, I have had a number of e-mails from developers using Microsoft ASP in recent days. The paraphrased consensus in the e-mails is that the external methods/python methods approach to mixing markup with code in Zope is more clunky than in ASP where you can intermingle the two at will. Has anyone written anything on this topic I could point them to? regards, Sean http://www.pyxie.org - an Open Source XML Processing library for Python

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sending mail slow?
by Chris Withers 04 Sep '00

04 Sep '00

Hi, I've noticed that sending mail from within Zope the <sendmail> tab or mailhost.send() is very slow (like it adds a few seconds to the time it takes to get a page back from a post). Why is that? how can I make it faster? I'd thought about having the actual mail sending done in a different thread/process but I don't know how I'd do that or whether it'd be worth doing. I wonder where the slowness is coming from :S cheers, Chris

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Zope.org is soooooo slow.
by Erik Enge 04 Sep '00

04 Sep '00

Zope.org is slow as hell. A couple of days a week at least. It doesn't exactly work in favor for Zope when I try to show of Zope.org to friends, collegues or potential customers and the site won't even respond. Argh! Why is it so slow? Do something about it!

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Graphics served randomly. Apache - pcgi cacheing problem
by Felipe E. Barousse Boué 04 Sep '00

04 Sep '00

Has anyone seen the following behavior: I am using PCGI with Zope 2.1.6 and Apache 1.3.9. Everything works fine except when reloading the same page, the graphics in it are not "painted" by the client browser. Checking on the apache logs, I found there is a 304, meaning the object has not changed on the web server and therefore the client should be using its local cached copy. On the Z2.log, for the same graphics requests, there are no 304's but 200's meaning Zope DID serve the graphic through pcgi. So, It appears Apache is loosing the graphics somewhere. Nevertheless, the graphic is never rendered. Weirdly this happens on IE 5.0, Netscape 4.75 and StarOffice 5.2. All browsers do have at least 5 MB of disk cache and 3 MB of memory cache. This confirms the problem lies on Apache itself. Am I right? This happens in a random fashion. I have not been able to establish some pattern. The text on the pages gets rendered fine. Any ideas on how to solve this issue will be greatly appreciated, Best regards. Felipe Barousse

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need help: strange behaviour of dynamicly built global navigation tree in standard header
by Marcus Schopen 04 Sep '00

04 Sep '00

Hi there, I would also like to put my global navigation method in the standard header, so each document can use it. But I get a strange behaviour (see http://marcus.localguru.de:8080/b3/ ) of these dynamicly built navigation trees. I would like to avoid frames. Thank you Marcus ______________________________________ (0> Marcus Schopen //\ Bielefeld, Germany V_/_ ______________________________________

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Missing pictures
by William JOYE 04 Sep '00

04 Sep '00

Hello, I have notified that every time on my web page one picture is missing (with IE and Netscape). When I refresh the page there is another picture missing and the first is OK. After another refresh, the first is missing and the second is OK. And so on... I use Apache and Zope 2.1.6 under Linux. In the Apache log, I have notified that http code is always 304 but when pictures are missing in web page the transferred size is '-' and no '0'. What's goes wrong ?

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strange zope problems of the crashing kind
by Leichtman, David J 04 Sep '00

04 Sep '00

Alright Zopers, I'm looking for a hint, a suggestion, just about anything would help since I can't, for the life of me, figure out what's wrong. Here's the run-down. We are running Zope 2.2.0 on Solaris, and we're running it through Apache + SSL. We're using a PostgreSQL DB with the ZPoPyDA. We are also using FSSession 0.4.0 for session management. Previously, we were using Zope 2.1.6, accessing ZServer directly, and using FSSession 0.3.1. Here's the problem. Previously, when we were accessing ZServer directly, Zope would spontaneously quit. No reason, it would just die. Restarting it would bring it back up, but minutes, sometimes hours, sometimes days later, it would spontaneously die again. I asked the list, but no one had had such problems (except Dieter, but that was an Oracle problem). So now that we're running it through Apache, we're still, apparently, having the same problem. What will happen is that every once in a while (more frequently with more traffic), Zope will hang indefinitely. The only way to get over it is to restart Zope. So apparently, the ZServer (which I guess takes requests from the pcgi process), is still going down as before. The question is, why is this happeneing? Or, more to the point, how can I figure out why it is happeneing? I looked through the Zope logs and the Apache logs and found nothing useful. I've been thinking that it might correspond to a heavy database access. Perhaps there's a problem with the ZPoPyDA. Or maybe it's FSSession (which, incidently, doesn't seem to be expiring cookies correctly). Or maybe it's a compatability issue with Solaris. I really don't kow, and I don't know how to go about finding out. So any help anybody can give me would be fantastic. If anybody's had any kind of similar problems, or if anybody has any suggestions, it would be much appreciated. I've racked my brains trying to figure it out, and I just can't. Thanks. Dave Leichtman University of Oklahoma

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RE: [Zope-dev] Fighting with ZServer
by T.J. Mannos 04 Sep '00

04 Sep '00

Dieter, Yes, I have, and I spent hours tearing apart my site thinking I'd seriously screwed-up when suddenly all my images refused to load. But that was just on my Solaris 2.6 server. PCs and even Macs render my pages beautifully. It's just Netscape Communicator for Solaris that causes a problem. I don't have a clue. But, I can tell you why your logs wouldn't be showing up. Netscape caches images so that it doesn't have to keep reloading them from the server. If it's reading a cached image, you won't see an entry in the server log. Hope this helps, T.J. -----Original Message----- From: zope-dev-admin(a)zope.org [mailto:zope-dev-admin@zope.org]On Behalf Of Dieter Maurer Sent: Monday, August 21, 2000 2:36 PM To: zope-dev(a)zope.org Subject: [Zope-dev] Fighting with ZServer Since this afternoon, I am fighting with ZServer. Currently, it seems Zserver is winning .... I do not understand, what I see... At work: Zope 2.1.6, Sparc Solaris 2.7, Linux Netscape 4.51 Sometimes, images are not shown by Netscape (broken image). No "simple" reload is able to change this, however a "forced" reload lets Netscape show the image correctly. From then on, the image is always shown correctly: by "simple" reload, "forced" reload or directly (served from cache). The strange thing, inside "Image.index_html" the failing "simple" reload and the succeeding "forced" reload look completely identical. At home: Zope 2.1.6, Intel Linux 2, Linux Netscape 4.5 All images are always shown correctly. However, there is no log entry in "var/Z2.log" for about 50 % of the requests that are answered by a 304 response. It is non-deterministic whether a log entry is written or not. Did you ever see something like this? Dieter _______________________________________________ Zope-Dev maillist - Zope-Dev(a)zope.org http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )

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Re: [Zope] RE: [Zope-dev] Fighting with ZServer
by Dieter Maurer 04 Sep '00

04 Sep '00

weboats(a)web-oats.com writes: > To your image in properites add a string property called > > Last-Modified > > with value > > Wed, 15 Mar 2002 19:02:17 GMT > > And your broken image problem will disappear. That may be possible. However, this avoids browser caching of the images (at least until 2002-3-15). I think, disabling the caching is not a good thing. Furthermore, it does not explain, why netscape displays the image as broken. It should get a nice 304 response which is usually handles correctly. By the way, Zope should cope with rounding problems for the "If-Modified-Since" headers. Dieter

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