September 1999 - Zope

RE: [Zope] Cacheing
by Rob Page 16 Sep '99

16 Sep '99

<snip> > :> > :> why not just use some separate subsystem for caching, eq. a squid > :> in httpd accelerator mode? <snip> This would only allow you to cache on web page boundaries not on object boundaries. I'd like to be able to write a DTML Method: <dtml-var standard_html_header> <dtml-var always_dynamically_rendered_object> <dtml-var possibly_cached_object> <dtml-var standard_html_footer> Moreover, I want the cached thing to be aware of acquisition, etc.. I think this necessitates its (rather close) integration with Zope. OTOH, am I in the minority of people that thinks cacheing on web page boundaries (i.e., REQUEST boundaries) is interesting but not compelling? A perfect case in point is the zope beta site. I always want to display the users login (which would be computer on ever hit) and say, "Welcome rob" However, I'd also like to cache the a rendered <dtml-var news_items> object. --Rob

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sqltest conditions
by Hugh Emberson 16 Sep '99

16 Sep '99

I just spent the day playing with my shiny new Zope installation and SQL methods, and I have been wondering if there is any reason why you can't specify a comparison operator in a sqltest directive. What I really wanted was something like:  which would produce SQL like: colname like 'value' I know that I can use a construct like this:  colname like   But it is quite clumsy. If no one can come up with a reason then I might take a stab at adding an optional attribute to sqltest, something like this: Option SQL ------- ------- op=eq C = V or C in (V) if V is a list op=like C like V op=lt C < V op=le C <= V op=gt C > V op=ge C >= V op=ne C <= V where C is the column name and V is the value of the variable. Does the order of the comparisons make sense? Should it be "C op V" or "V op C" ? Obviously, only "op=eq" will work with lists, though I guess I could generate something like: ( C like V[0] or C like V[1] or ... ) for "op=like" with a list though I'm not sure of the utility. I had a quick look at the source, in sqltest.py, and I don't think it will be hard to add this. Can anyone come up with a reason why this doesn't make sense? Hugh

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Re: [Zope] ANNOUNCE: new Zope.org goes live
by Hugh Emberson 16 Sep '99

16 Sep '99

Amos Latteier <Amos(a)digicool.com> writes: > [Hannu Krosing <hannu(a)tm.ee> wrote:] > > Please keep the nice reference at the old Zope site > > > > http://www.zope.org/Documentation/Reference/ZClasses/ZClasses.html > > > > It was hard enough to find in the first place (had to search my > > Zope-list > > mailbox and browse lots of messages) > > > > It can't be found using search on the new site :( Also missing on the new site are the installation guides: http://www.zope.org:8080/Download/Installation This was a bit disconcerting when I went to install Zope this morning, but it went extraordinarily smoothly anyway. Hugh

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RE: [Zope] Sorting the OODB
by Michel Pelletier 16 Sep '99

16 Sep '99

> -----Original Message----- > From: Arnaud Lecat [mailto:lecat@hexanet.fr] > Sent: Tuesday, September 14, 1999 8:11 AM > To: ZOPE > Subject: [Zope] Sorting the OODB > > > Hi > > Is there a way/product to sort the OODB for having a well organized > management > interface ? :) The managment interface .dtml files are easily found in the various Zope packages. Other than hacking your own, you can suggest any improvments to us. Someone posted an improved folder manager a while back, but there wasn't enough consensus for us to do something about it, re-organizing something like the manage iface is a big task. -Michel

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The ZCatalog not in the root folder problem?
by Stuart Woolford 16 Sep '99

16 Sep '99

There seems to be a (identified) problem with ZCatalogues which are not located in the root folder returning 'extra' info on the getpath call, and other oddities, I've seen reference to this on the mailing list, but cannot find the original discussion, can someone please post it to me? I feel another all-night zope hacking session coming on, and I need to get my ZCatalogue stuff working, or I will never get any sleep... :) -- ------------------------------------------------------------ Stuart Woolford, stuartw(a)newmail.net Unix Consultant. Software Developer. Supra Club of New Zealand. ------------------------------------------------------------

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Re: [Zope] #in & reverse sort + size
by achimg＠obelix.cologne.sgi.com 16 Sep '99

16 Sep '99

That's it! 'orphan' must be set. Thanks a lot! - Achim On Sep 15, 11:24, Evan Simpson wrote: > Subject: Re: [Zope] #in & reverse sort + size > Ah, found it! From the 'In' tag documentation: > > 'orphan' -- The desired minimum number of objects to be > displayed. The default value for this > parameter is 3. > > That's why 7=5+2 doesn't work as you expect, but 8=5+3 does! > > Try: > <!--#in "objectValues(['Folder', 'DTML Document'])" sort=id reverse size=5 > orphan=0> > > >-- End of excerpt from Evan Simpson -- Silicon Graphics GmbH | Email: Achim Gorski <gorski(a)sgi.com> Frankfurter Str. 720-726 | Phone: +49-2203-9312-24 D-51145 Koeln, Germany | VM : +330-8891 Mail-Stop: IDE-3160 | Fax : +49-2203-9312-20

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http-header application/octet-stream vs. text/html
by Geir B Hansen 16 Sep '99

16 Sep '99

it seems to me that Zope returns Content-Type=application/octet-stream in the HTTP-header when documents start with anything but <HTML>. For documents starting with <HTML> i get a nice and correct : HTTP/1.1 200 OK Date: Thu, 16 Sep 1999 08:29:09 GMT Server: Apache/1.3.9 (Unix) mod_perl/1.21 mod_ssl/2.4.2 OpenSSL/0.9.4 mod_fastcgi/2.2.2 Connection: close Ms-Author-Via: DAV X-Powered-By: Zope (www.zope.org) Python (www.python.org) Content-Length: 94 Last-Modified: Thu, 16 Sep 1999 08:25:07 GMT Content-Type: text/html ... Problem is : I want my returned documents to be correct and to the specs (www.w3.org) , and that requires me to have a DTD at the top , like : <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" "http://www.w3.org/TR/REC-html40/loose.dtd"> -- seems to me like the DTD makes zope return Content-Type=application/octet-stream instead of 'text/html'.. Have anyone else encountered this problem, and found a solution ?? Thanks ! ------------------------------------------------ Geir B Hansen geirh(a)funcom.com Web-designer / Graphic artist Funcom Oslo ------------------------------------------------

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<dtml-tree> from a ZCatalog?
by Stuart Woolford 16 Sep '99

16 Sep '99

As I'm sure this is a done thing in Zope, can anyone give me a pointer as to how to create a tree view of the results of a ZCatalog query? In my particular situation I return a number of fields, notable TYPE, THEID and TITLE, There are about 5 'TYPE's, a bunch of 'THEID's, and whatever TITLEs people choose to create (this is for a 'notes' ZClass allowing people to have personal notes attached to pages), I would like to create a tree with the first level representing the types present, the second level representing the ids withing the expanded type present, and finally the actual titles. is this dooable with a tree? Any help would be greatly appreciated. -- ------------------------------------------------------------ Stuart Woolford, stuartw(a)newmail.net Unix Consultant. Software Developer. Supra Club of New Zealand. ------------------------------------------------------------

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Zope 2.0.0 and UserDB
by Neil.G.Miller.98＠Alum.Dartmouth.ORG 16 Sep '99

16 Sep '99

Does anyone know the status of UserDb under Zope 2.0.0? Most of the previously unsupported products are listed but UserDb seems to have disappeared for the new web site. Thanks, -n

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Using DTML method without HTML rendering?
by Li Dongfeng 16 Sep '99

16 Sep '99

The basic benefit of DTML method and document is that you can use dynamic substitution in the contents. This is like the "macro" mechanism in C(of course, much more powerful). Question: Can I use the dynamic substution of DTML, but suppress the HTML rendering? For example, if I have a source program saying x <- 1 the DTML rendering will convert the string to "x <- 1". Can I suppress this? How can I do this in Python code? If I can use the DTML dynamic substitution without HTML rendering, I can let users to input some program parameters in HTML form and run the program(in my case, an statistics server based on R) through the Zope server. This can simplify HTML code, I can simply use e.g. n <- <dtml-var number_of_person> p <- <dtml-var probability_level> in the program. Or else I have to write code to convert user FORM input.

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