December 2000 - Zope

Re: [Zope] Passing lists in a get request (ZCatalog Search)
by Dieter Maurer 03 Dec '00

03 Dec '00

Darin Lee writes: > ... > but when I try to sort the column (with a ?sort_on=index "get" request), the selected criteria are forgotten and the entire result set is returned sorted. You add also the search criteria to your URL? I.e. you use your_method?sort_on=theme&theme=xxx&theme=yyy If you simply append "?sort_on=theme" to your_method?theme=xxx&theme=xxx Then, you would have two '?parameter' sections. Only the last would be taken. The first would be part of the path which should give you a NotFound Exception. But maybe, there is a bug somewhere. You could also use a <dtml-call "REQUEST.set('sort_on','theme')"> in "your_method" before the "dtml-in", in case the sort order is fixed. > for example, one of my search criteria is "theme" - there are four possible (Air, Land, Water, and Waste). > > the request would look like: > search?meta_type=Publication&theme=Air&theme=Land&theme=Water > > I can't figure out how to pass a list in the get request. That is a good approach. If the same parameter is repeated, Zope will bind a list of all values to the parameter name. If you would like to be sure to get a list (or no value at all), you can use "theme:list". This will ensure, that a list is bound even if there is only a single "theme" parameter. This is irrelevant for your application, however. > .... difficult to build long list "param=v1&param=v2&...." .... Usually, the browser builds such URL for you (out of a form). E.g., if you use a multiple select box or several check boxes with the same name, the browser will construct corresponding "param=v" for each selected/checked value. > .... length limitation with get .... HTTP 1.1 (and I think HTTP 1.0) has removed the length restriction. At least Zope/Zserver will not impose an unreasonalble limit. Someone else suggested to use a post (rather than get) request. In general, I would warn you against this solution. It will break the "dtml-in" batch support. Dieter

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Re: [Zope] Zope restarting itself?
by administrator＠consotec.de 03 Dec '00

03 Dec '00

Have a look at: http://www.lightwerk.com//zope/monitoring > Hi listies, > > maybe someone of you heard of a feature that Zope can restart itself when > it dies abnormally. (Linux/Unix version). I found such a service for Windows > NT, but not for Linux, although I am sure that I saw it a while ago > somewhere... Is this just a parameter for z2.py or is there a special program for > this task?

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Re: [Zope] trouble: products created inside Zope, updating from 2.1 to 2.2
by Dieter Maurer 03 Dec '00

03 Dec '00

Thies =?ISO-8859-1?Q?B=E4hr?= writes: > .... authorization problems for TTW products > after 2.1 --> 2.2 transition .... The reason is simple that you do not find upgrade documentation for TTW products: there should be nothing to worry about. Thus, you have a case, that should not be. Let the authorization fail and post the resulting traceback. Maybe, we see something. You may also look into the (searchable) list archive. There have been several threads about similar problems. And, I (at your place) would use Zope 2.2.4 rather than 2.2.2. Maybe, the problem disappears (because a bug was fixed). Dieter

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Re: [Zope] Making lots of external data searchable?
by Dieter Maurer 03 Dec '00

03 Dec '00

Anselm Lingnau writes: > .... indexing big mail archives from Zope .... You can use the Zope product "LocalFS" (maybe also "ExternalFile") to wrap external files into Zope objects (without storing then in the ZODB). Newer versions of "LocalFS" allow you the catalog its contents with ZCatalog. However, before you commit to ZCatalog, make some performance measures. ZCatalog tends to require large amounts of time and memory to build its indexes. Dieter

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Re: [Zope] Intercepting NotFoundError with standard_error_message
by Dieter Maurer 03 Dec '00

03 Dec '00

Philipp Auersperg writes: > .... missing control over stack trace .... I agree with you: you should have control over this stack trace. However, I fear, you will need to change the Zope source to get this. It should be easy to implement: Bind the traceback to a variable in the namespace, the "standard_html_error" page is rendered in rather than appending it directly. The "standard_html_error" is free to do with it whatever it likes. Maybe, you file a feature request into the Collector. Dieter

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Re: [Zope] Custom tpValues for dtml-tree
by Dieter Maurer 03 Dec '00

03 Dec '00

Randall Kern writes: > .... > Error Type: AttributeError > Error Value: 'tuple' object has no attribute 'append' > .... > File /usr/src/Zope-2.2.2-src/lib/python/TreeDisplay/TreeTag.py, line 566, > in apply_diff > (Info: ([None, ([140975456, []],)], [140974880, 140974088])) > AttributeError: (see above) You may try to replace in "TreeDisplay.TreeTag.TreeTag.tpRender": if state is substate and not (args.has_key('single') and args['single']): state=state or ([id],) state=encode_seq(state) by: if state is substate and not (args.has_key('single') and args['single']): state=state or [[id],] state=encode_seq(state) If you do and have success, please file a bug report with patch into the collector. You may later get a different problem: In some contexts, the Zope security policy requires an acquisition context. You "Foo" objects do not have such contexts. If the problem shows up, you will get Unauthorized exceptions where you do not expect them. Dieter

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Zope.Org: Not a good example...
by The Doctor What 02 Dec '00

02 Dec '00

I've been looking around for examples of certain objects and such. One simple example is a URL object. Zope.Org *has* this object (Link) and it is fairly nifty, even if it isn't documented (ie, it's usage etc.) but I can't find the *source* for this object anywhere! All I want is to be able to have a Link object on my Zope engine, with possibly a minor change or two, but I can't find out where to get it anyplace. This isn't the only example. I have software that I want to distribute, but I can't get the source for the Software Product/Distribution objects either! I can get the source for DTML Documents, but it doesn't do much good if they make extensive use of objects that I can't get the source for. I would like to enter a plea for *someone* at DC/Zope.Org to fix this situation! BTW: I have a better view_source DTML Method: http://docwhat.gerf.org:9673/view_source/view_source Ciao! -- Death is a once in a lifetime experience. The Doctor What: A Holtje Production http://docwhat.gerf.org/ docwhat(a)gerf.org KF6VNC

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Re: [Zope] IP address and US city name
by Hung Jung Lu 02 Dec '00

02 Dec '00

>From: Michel Pelletier <michel(a)digicool.com> >Actually Hung, on this one he is right. I owned and operated an >... >That said, there is a company that has intrusivly scanned the whole >... >service is very expensive, not 100% accurate (because neworks move and It happens that I saw with my own eyes in a vendor's demo how a well-known product (and you are right on the "very expensive" part, but nowadays I seem to use only the "very expensive" software products) pinpointed visitors down to the city level. I asked the vendor how this was done and he, obviously unaware of the details, gave me the answer that I have mentioned. This was not even recent development. So I just thought it was common knowledge. thanks and regards, Hung Jung _____________________________________________________________________________________ Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com

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IP address and US city name
by Hung Jung Lu 02 Dec '00

02 Dec '00

Hi, I know that IP addresses in the USA follow a strict pattern of geographical locations. (Most other countries don't do that.) Does anyone know where I can get a copy of the table of IP addresses vs. city names? regards, Hung Jung _____________________________________________________________________________________ Get more from the Web. FREE MSN Explorer download : http://explorer.msn.com

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Re: Questions
by Chalu Kim 02 Dec '00

02 Dec '00

Thin Zope SA fits 19 inch rack which is standard with most racks and ISP specification. ISPs where this rack works; Exodus, UUnet, Global Crossing, Imagenex and most ISPs The rack is for telephony spec which is shorter than most so that you can pack more horizontally according to telephone company spec. swallace wrote: > > Hi, > If I get a Thin Zope SA, do you know of a couple good > providers of rack space that would take one of your units? > Or, is it better that I try to find a local provider (Salt > Lake City)? What has been your experience with buying > bandwidth with a communication service provider if I were to > provide by own server such as the Thin Zope SA? > Thanks, > Steve

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