May 2001 - Zope - Zope lists

Accessing ZClasses other ZClasses via Python
by Klaus Woelfel 05 May '01

05 May '01

Hi, Can anybody tell me how I can access a ZClass in another ZClass with python? For example I have a ZClass, called "foo_class" that lifes in another ZClass called "Container_class" in a product called "foo_product". So this works fine: "Control_Panel.Products.foo_product.Container_class" But this doesn't work: "Control_Panel.Products.foo_product.Container_class.foo_class" Zope says: Error Type: AttributeError Error Value: foo_class Can anybody help me? ciao, Klaus

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redirect command and advise in general
by Mehmet Yousouf 05 May '01

05 May '01

Hi, I'm slowly putting together an intranet using zope and Mysql to keep track of orders and manufacturing processes for our business and I've got most things working however, there are a couple of things (well... lots actually) I am doing the "wrong way" that I want to fix so that I can cut down on the code and tidy up a bit (simple things, but when you don't know how...) The first and easiest...... I'm using zsessions to keep track of things and the same session can be started from different pages so the way I imagine I should be able to have a single bit of code to achieve this is either javascript (which I have worked out how to implement but don't want to use - I frequently have javascript turned off) or "post" the information to a page that sets the data then redirects back to the "referring url" which is the way I want to do it.... I can't work out how to pass the url into the redirect command so I have been setting up the same page, just slightly changed, for each page that needs to set a session.... e.g. I'm using: <dtml-call "RESPONSE.redirect('query_page')"> instead of something like <dtml-call "RESPONSE.redirect('referring url')"> all that's done on the page is setting of the session i.e. <dtml-call "SESSION.set('blah', blah)"> <dtml-call "RESPONSE.redirect('prodution')"> I could cut down on thirty "pages" by doing it properly Any help/suggestions/advice would be greatly appreciated

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RE: [Zope] best streaming practice??
by Farrell, Troy 04 May '01

04 May '01

Your choices are extremely limited. You can try RealServer: http://www.realnetworks.com/products/servers/sysreqs.html which runs on NT/2k,linux,FreeBSD,Solaris,AIX,HP/UX,and IRIX. I'm not sure that streams mpeg though. It is really pricey. If you're a corporation with deep pockets, you can <shameless plug> VYVX your video feed to a streaming company, and let them stream it (very pricey).</shameless plug> If you just wanted audio, we could hook you up with Icecast... All that is well and good, but when it comes to zope, you can only serve static content. That is to say that zope can store and server a video/audio file, but zope/zserver doesn't speak any streaming protocols (RTSP, MMS...). The above solutions do both static and dynamic content. Troy It should be noted that I am an employee of Vyvx services. -----Original Message----- From: zope-mailinglist [mailto:zope-mailinglist@mopa.at] Sent: Friday, May 04, 2001 1:21 PM To: zope(a)zope.org Subject: Re: [Zope] best streaming practice?? thanks for your answers isnt there a solution for unix/linux? my solution should run on freebsd 4.3 i would like to stream mpeg2 or (in my dreams) mpeg4 (divx) :) i took a look at darwin - but it seems that it only understands qt format dono if i'm right

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LiveLink "converters"
by Menard.Jean-Francois＠hydro.qc.ca 04 May '01

04 May '01

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] #include with DocumentTemplate?
by Dieter Maurer 04 May '01

04 May '01

Lance E Sloan writes: > I'm writing some CGIs in Python and I borrowed the DocumentTemplate > module from Zope because it does most of what I need. However, there's > one thing that it apparently doesn't do that I would really like. And > that would be to use "#include" tags to read in other DTML documents > and parse them. That is, tags like this: > >  > > Does DocumentTemplate already handle that? I couldn't find it in the > documentation. Apparently, you look at the wrong documentation. Did you look at the Zope book or the DTML section of URL:http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html ? "dtml-var" can include any object: attributes, property values, functions and methods without arguments (they are called before inclusion), DTML objects (they are called with parameters 'None' and the current DTML namespace), Scripts (they are called with the DTML namespace and possible further parameters from the environment, if configured). Usually, DTML objects must already be objects and not file names. Thus, you should already have transformed your files into DTML objects (there are special classes for that), and put them in the DTML namespace (passing either a mapping or keyword arguments to your top level DTML object call). Dieter

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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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