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Re: [Zope] Question about cache management
by Oliver Bleutgen 04 May '01

04 May '01

> On Fri, 4 May 2001 16:04:06 +0200, Oliver Bleutgen <myzope(a)gmx.net> > wrote: >>Has anybody found a nice strategy to cleverly >>handle this kind of situation? > Two options: > PULL: scrounge modification times from all the individual objects that > make up your page, every time the page is requested. > PUSH: modify the critical methods that modify the state of the objects > that make up your page, so that they maintain some global > last-modified value. > The best solution may be a combination of both. I would tend to the second option (right now the objects are all instances of the same zclass, so I have to touch just one "edit"-method). One problem is that there's still a timespan in which the proxy will deliver old content, and the problem is to purge the stale cached content - I'm talking about apache's mod_proxy here, which seems not to have a "purge" like squid. My idea is to extend the "push" method to also get the page with zclient with the headers pragma: no-cache cache-control: no-cache in order to get mod_proxy to revalidate the document. Any ideas someone if this is an ok approach? cheers, oliver

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RE: [Zope] LiveLink "converters"
by dave＠kovach.com 04 May '01

04 May '01

Hi - The converters are easier than people might think... Once you get the data sucked down into an xml file - there are different java classes (no reason they couldnt be python-ized) to build the xml into a PDF etc. I am curious about the internationalization of the zope interface, but more importantly is having provisions to have a ZOPE'ed site be presented in MANY languages. Havent looked this up yet. But, to do it right - it can get pretty tricky. Java has books and books on the subject. But, again with Python - since everything is always easier in Python :) - it probably is 1% of the lines of Java code etc... Hmmm? David Kovach dave(a)kovach.com On Fri, 04 May 2001, Menard.Jean-Francois(a)hydro.qc.ca wrote: > > <!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN"> > <HTML> > <HEAD> > <META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=iso-8859-1"> > <META NAME="Generator" CONTENT="MS Exchange Server version 5.5.2653.12"> > <TITLE>RE: [Zope] LiveLink "converters"</TITLE> > </HEAD> > <BODY> > > Sorry for HTML!  I tough I used "text", but I guess I didn't... Sorry! > -----Message d'origine----- > De : Menard.Jean-Francois(a)hydro.qc.ca [<A HREF="mailto:Menard.Jean-Francois@hydro.qc.ca">mailto:Menard.Jean-Francois@hydro.qc.ca</A>] > Envoyé : vendredi 4 mai 2001 15:00 > À : zope(a)zope.org > Objet : [Zope] LiveLink "converters" > > > > We just got a demo of LiveLink, a document manager system.  They have an Intranet module wich is REALLY like the Zope one.  In fact, it's almost de same!  I found a number of similar functionalities between them, but there is a couple of features in LiveLink wich I found interesting: > > - If a user upload a document, the programmer can use it directly.  There are automatics converters for many formats: PDF to HTML, Excel to HTML, Word to HTML, Word to PDF, etc.  You can develop your own converters if tou want. > >         Example:  Someone upload a report in Excel.  In your website, you can put a link to a PDF version, or show it in HTML automatically!  > > - When a user is logged, he sees only the documents he can manage!  Much simpler interface! > - The interface is internalionalized. > So, I guest my questions are: >         - Any plan for a Zope interface internationalisation ?  I know, we could translate the interface ourself, but we want to upgrade sometimes... > >         - Any plan for "converters" ?  I think it would be fairly easy, no?  >         - Could hiding unauthorized objects been possible?  I  know that I can manage that in DTML, but I mean in the default management interface? > > Any thoughs? > Jean-François Ménard > Intranet DPAS > Pratiques d'affaires et orientations > *        (514) 840-3000  poste 3939 > *  (514) 840-5585 > *  menard.jean-francois(a)hydro.qc.ca > *         855 Ste-Catherine est, 6e étage >               Montréal, Qué. H2L 4P5 > > > </BODY> > </HTML> _____________________________________________________ Get your name as your email and web site address. http://www.NetIdentity.com. Be somebody online.

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[jerome: Re: [Zope] [ANN] ZShell 0.1]
by Jerome Alet 04 May '01

04 May '01

Sorry, forgotten the CC to the list. Jerome Alet

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[ANN] ZShell 0.1
by Jerome Alet 04 May '01

04 May '01

Hi, I'm very pleased to announce the new version of the Zope Shell. You can download this GPLed external method from: http://cortex.unice.fr/~jerome/zshell/ Current version is 0.1 and replaces 0.001 Delete your old version an install this one, you'll probably love it ! List of available commands (expect more soon): deluser delete users adduser add users lrole add/delete local roles whoami current username pack pack database restart restart zope save save versions (untested) discard discard versions (untested) copy copy to clipboard cut cut to clipboard paste paste from clipboard import import objects chown change owner (doesn't work) man shows help whatis alias to man help alias to man apropos alias to man about about ZShell google launch a query on google wget suck websites (not finished) mkdir create folders recursively pwd shows current working folder cd change current folder rm delete objects recursively mv move objects (doesn't rename yet) cp copy objects ls list objects Any help and constructive criticism is appreciated. Hints: * ls accepts meta types as its arguments, this may change soon. * multiple commands must be separated by newlines, not ; for now. * you can use a stylesheet named zshell.css * absolute paths may not work completely, help needed. * use the man command for the rest. Thanks to Peter Bengtsson and Simon Michael ! hoping you'll find it as useful as I do... Jerome Alet - alet(a)unice.fr

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Re: [Zope] LiveLink "converters"
by Oliver Bleutgen 04 May '01

04 May '01

Hi, > - Any plan for "converters" ? I think it would be fairly easy, no? No, this ain't easy. Just ask the abiword,staroffice etc. guys. But take a look at http://www.zope.org/Members/eric/MSWordDocument which uses wvware (www.wvware.com) to convert msword documents into html. But its easy to get all the various formats (html, ps, pdf, ascii, wml) which wvware can export. > - Could hiding unauthorized objects been possible? I know that I > can manage that in DTML, but I mean in the default management interface? Just one question, on what basis do you want to hide the objects (i.e. based on what permission). We have documents people should be able to view in order to see effects of changes they made on other elements, but not able to change the document itself. If these documents weren't visible in the management screen people would get confused, I fear. Perhaps using semi-transparent icons could be used to give users some idea that the regarding file is restricted in some sense, but I'm sceptical. cheers, oliver

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RE: [Zope] LiveLink "converters"
by Menard.Jean-Francois＠hydro.qc.ca 04 May '01

04 May '01

Sorry for HTML! I tough I used "text", but I guess I didn't... Sorry! -----Message d'origine----- De : Menard.Jean-Francois(a)hydro.qc.ca [mailto:Menard.Jean-Francois@hydro.qc.ca] Envoyé : vendredi 4 mai 2001 15:00 À : zope(a)zope.org Objet : [Zope] LiveLink "converters" We just got a demo of LiveLink, a document manager system. They have an Intranet module wich is REALLY like the Zope one. In fact, it's almost de same! I found a number of similar functionalities between them, but there is a couple of features in LiveLink wich I found interesting: - If a user upload a document, the programmer can use it directly. There are automatics converters for many formats: PDF to HTML, Excel to HTML, Word to HTML, Word to PDF, etc. You can develop your own converters if tou want. Example: Someone upload a report in Excel. In your website, you can put a link to a PDF version, or show it in HTML automatically! - When a user is logged, he sees only the documents he can manage! Much simpler interface! - The interface is internalionalized. So, I guest my questions are: - Any plan for a Zope interface internationalisation ? I know, we could translate the interface ourself, but we want to upgrade sometimes... - Any plan for "converters" ? I think it would be fairly easy, no? - Could hiding unauthorized objects been possible? I know that I can manage that in DTML, but I mean in the default management interface? Any thoughs? Jean-François Ménard Intranet DPAS Pratiques d'affaires et orientations * (514) 840-3000 poste 3939 * (514) 840-5585 * menard.jean-francois(a)hydro.qc.ca * 855 Ste-Catherine est, 6e étage Montréal, Qué. H2L 4P5

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Re: [Zope] Summarization and Zope
by Chris Beaumont 04 May '01

04 May '01

Hi Assum, It's 'HTML::Summary' http://search.cpan.org/doc/TGROSE/HTML-Summary-0.017/lib/HTML/Summary.pm (I'm enclosing the info for it at the bottom of the page) What I was thinking is that it might be possible to parse a given rendered page just before actually delivering it in the RESPONSE object, and insert a short summary in the meta-description tag.. on the fly.. I also wouldnt be suprised if the PERL summarization module might also be able to be coaxed to give us keywords.. (the 'fork words' in the 'tree') There are two guys at a company called Glucose that make a similar tree-summarization product for the Mac, (it works amazingly well) and I suggested a similar thing for them around two years ago (to be used with static pages..) and they actually turned my idea into a commercial product.. Unfortunately, it is Mac only and cant be used with Zope.. I didnt ask them for any money, but they did put my name in the about box *laugh*. Of course now that I'm building sites in Zope, it's not really practical for me to use anymore. But I really miss that functionality.. I work on a scientific site and as we move more and more of it to Zope, the ability to generate a good meta-tag summary automatically would be a godsend. This insert doesn't sound like it would be difficult.. I'm doing a similar thing with titles for some of the pages on the Zope part of my site.. I'm just not enough of a PERL hacker to know the best way to go about creating the hooks between Zope and PERL.. -Chris Ausum wrote: > > Chris, Would you please specify what is the summarization module you've known > about? I've been at CPAN, but no result is given to a "summarization" keyword > search. I'm glad you're as interested as me. > > It's cool to know we can count on you, Andy. I haven't tried Perl for Zope, but > I will this very afternoon. > > Ausum > > Andy McKay wrote: > > > > > Maybe you could hook the PERL module up to Zope somehow.. > > > > Thats easy, call it straight from Zope or wrap it in a product. If you need > > help on this drop me a line. > > > > Cheers. > > -- > > Andy McKay. _________________________cut here____________________________ > NAME > > HTML::Summary - module for generating a summary from a web page. > > > > SYNOPSIS > > use HTML::Summary; > use HTML::TreeBuilder; > > > my $tree = new HTML::TreeBuilder; > $tree->parse( $document ); > > > my $summarizer = new HTML::Summary( > LENGTH => 200, > USE_META => 1, > ); > > > $summary = $summarizer->generate( $tree ); > $summarizer->option( 'USE_META' => 1 ); > $length = $summarizer->option( 'LENGTH' ); > if ( $summarizer->meta_used( ) ) > { > do something > } > > > > > DESCRIPTION > > The HTML::Summary module produces summaries from the textual content of web pages. It does so using the location heuristic, which determines the value of a given sentence based on its > position and status within the document; for example, headings, section titles and opening paragraph sentences may be favoured over other textual content. A LENGTH option can be used > to restrict the length of the summary produced. > > > > CONSTRUCTOR > > new( $attr1 => $value1 [, $attr2 => $value2 ] ) > > Possible attributes are: > > VERBOSE > Generate verbose messages to STDERR. > > LENGTH > Maximum length of summary (in bytes). Default is 500. > > USE_META > Flag to tell summarizer whether to use the content of the <META> tag in the page header, if one is present, instead of generating a summary from the body text. Note that if the > USE_META flag is set, this overrides the LENGTH flag - in other words, the summary provided by the <META> tag is returned in full, even if it is greater than LENGTH bytes. > Default is 0 (no). > > my $summarizer = new HTML::Summary LENGTH => 200; > > > > > METHODS > > option( ) > > Get / set HTML::Summary configuration options. > > my $length = $summarizer->option( 'LENGTH' ); > $summarizer->option( 'USE_META' => 1 ); > > > generate( $tree ) > > Takes an HTML::Element object, and generates a summary from it. > > my $tree = new HTML::TreeBuilder; > $tree->parse( $document ); > my $summary = $summarizer->generate( $tree ); > > > meta_used( ) > > Returns 1 if the META tag description was used to generate the summary. > > if ( $summarizer->meta_used() ) > { > # do something ... > } > > > > > SEE ALSO > > HTML::TreeBuilder > Text::Sentence > Lingua::JA::Jcode > Lingua::JA::Jtruncate > > > > > AUTHORS > > Ave Wrigley <wrigley(a)cre.canon.co.uk> > Tony Rose <tgr(a)cre.canon.co.uk> > Neil Bowers <neilb(a)cre.canon.co.uk> > > > > > COPYRIGHT > > Copyright (c) 1997 Canon Research Centre Europe (CRE). All rights reserved. This script and any associated documentation or files cannot be distributed outside of CRE without express > prior permission from CRE. >

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Re: [Zope] Uploading images - no image!
by Dieter Maurer 04 May '01

04 May '01

Etienne Labuschagne writes: > The Python Method (not external Python Method!) below must upload an image "Python Method" has been superceded by "Python Script". Fewer and fewer people will know about "Python Method". You may consider upgrading to "Python Script" as an appropriate time in the future. > .... > self.manage_addProduct['OFSP'].manage_addImage(id,file,title) > ... create image but without (wrong?) date ... Apparently, your "file" does not have the correct type. This may happen, if the "enctype" attribute if your "form" is not "multipart/form-data" (as someone else already told you). Note, that it must be "multipart/form-data" and *NOT* the content type of your image! Dieter

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Xron not firing reliably
by Capesius, Alan 04 May '01

04 May '01

I'm using a sendmail operation in three identical xron methods. The events are scheduled for 12:00:00 each day. They can be triggered manually or scheduled for other times, but they do not fire reliably over time. That is, they will work the first and maybe second time but will not fire repeatedly over several days. No output goes to the STUPID_LOG_FILE when this happens. Restarting the Zope service will activate the unfired events and log them. Anyone have any ideas on what might be going on or not going on here? I'm currently running a test with a simple test logging event that fires every minute to see if it will eventually break down. Thanks, Alan Capesius, MCSE/NTCIP+20 Technical Support Engineer Sysmex Corporation of America capesiusa(a)sysmex.com

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manage_upload;manage_delete
by Danilo Custódio da Silva 04 May '01

04 May '01

Please ..Does anyone knows how to use the method manage_upload, and if is there a method called manage_delete that delete file objects,? thank's Danilo

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