March 2000 - Zope-Dev

Translator 0.1 released
by al028823＠alumail.uji.es 24 Mar '00

24 Mar '00

Hi again! The dtml-str thread yesterday was very active and it continue.... :) Yesterday I printed the email messages and the L10NFolder source code and studied it before going to sleep. The result is the first release of the Translator product and this message, an attempt to join our until now dispersed work. Download the translator from http://www.zope.org/Members/jdavid/translator The translator product is just the old vocabulary product renamed following the Michell advices and with a new translate tag which is a first implementation of the Shane's proposal. Suppose the data contained by our Translator instance is: {'my': {'es': 'mi'}, 'house': {'es': 'casa'}, 'is': {'es': 'es'}, 'green': {'es: 'verde'} } Then if you type: "<dtml-translate>my house is green</dtm-in>" and "languages" is "['es']" then the result is "mi casa es verde" (and it's right!!). It does it by: - split the string - translate each word - join the string Yes, this is only a bogus algorithm but it shows how it would be. Future releases should allow to plug more intelligent translators. So now we have a good way to translate "static" strings: <dtml-var "translator('manage main')"> and also a good way to translate dynamic texts with the "dtml-translate" tag. Now I'm going to comment the L10NFolder by Federico. There're two things I don't like with it: 1. The L10NFolder changes the default behaviour of the dtml-var tag, this could break lot of dtml code in an unexpected way. The translator product does it in a different longest way. But other solutions could be tried, for instance the "dtml-var" tag could be modified to accept a new argument called "translate", if present it would translate the string returned by the "var" tag. For now I think the translator product approach is enough. 2. Say I have a University site which is an instance of my own product which subclasses Folder. Then I want to provide internationalization support using the L10NFolder, I have to modify my product so it subclasses from L10NFolder instead of Folder. I think it's not a good way. What I *really* like of the L10NFolder product is its url traversal special feature. I propose to implement that feature in the translator product but in a slight different way. Say my site is: University/ image Department/ image to transform it into a multilingual site I would add a translator object and translate the objects (documents, images,...): University/ translator image image_es Department/ document document_es Then the url "University/image" would return the "University/image" object but the url "University/translator/image" would return the "University/image_es" object. It could also be used deeper in the hierarchy so "University/Department/translator/document" would return "University/Department/translator/document_es". In this way there is no need to modify the python code, just modify the urls. What do you think about this Federico? If you think this is a better approach feel free to add your url traversal magic to the Translator product and your name to the copyright. There're also a lot of other issues I haven't talked about in this message because I think the first step is to join the work that has already been done in a single product. I think this translator thing can be a really powerfull feature, think about an Squishdot with multilingual support, each user sees the aricles and comments in their own language. Really a killing feature for Zope :) David

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Some patches..
by Morten W. Petersen 24 Mar '00

24 Mar '00

Couldn't find the right place to submit'em, so here they are.. DT_Util and DT_Var are fixed to escape characters that break javascript and tclscript strings. DTMLMethod has a hack that let's us edit files via the composer which is part of the Netscape Communicator package, for examples go to emm.src.no/dirigent (may not be updated yet) -Morten W. Petersen

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BooleanIndex for ZCatalog?
by Alexander Limi 24 Mar '00

24 Mar '00

Hi. I would like to suggest the following addition to the ZCatalog code: A BooleanIndex type in addition to the existing FieldIndex, TextIndex and KeyIndex. The reason behind this is that Zope stores boolean 1 as "on", whereas a lot of other sources store them as "True" or simply "1". I ran into this problem when trying to catalog values that other programs had set in the ZODB. Some of them appeared as "on", some as "1", and yet others as "0". The last one was the one causing the trouble, as it was per Zope definition true, even if the value indicated false. So, I thought I would suggest that the catalog does some interpreting of the result when indexing boolean fields, setting the values "off", "0" and "false" to None, and not just do a pure "index what's contained in the field" like it does now. This would IMHO best be done with a new Index called BooleanIndex. If this sounds totally unacceptable, feel free to ignore my post - I'm a clueless newbie relaying my initial problems to the zope list as I find them :) Regards, Alexander Limi PS: CC any answers to me, as I'm not really qualified to be on the zope-dev-list :)

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Re: [ZIP] dtml-str idea
by al028823＠alumail.uji.es 24 Mar '00

24 Mar '00

Hi all, Note: I cc this message to zope-dev because I want to be sure that the DC folks get aware of this, since I think internazionalization support should be a standard Zope feature, so their opinion is *very* important. First, I've just uploaded the vocabulary product to Zope.org, download from "http://www.zope.org/Members/jdavid/vocabulary". Now a brief description of the vocabulary python product. It is really simple, the data structure is a dictionary indexed by strings which contains another dictionary indexed by language which contains the translations, example: {'window': {'en': 'window', 'es': 'ventana', 'ca': 'finestra'}, 'house': {'es': 'casa'}, ... } It also provides a web interface to edit the entries and translations, visit "http://estce.act.uji.es/zope-edu/LLEU/V/manage_workspace" to see it. And more, it has XML support, you can export/import its contents to/from XML files. Just click in the "XML" tab to see it. It's used in this way (if the product instance is called "V"): <dtml-var "V('window')"> The language is determined by the variable "languages" which must be a sequence of languages, for instance it could be a Folder property of type tokens with value "en es ca". First the translation is searched for the first language ('en' in our example), if it's found that translation is returned, if no it tries with the next language, if no translation is found it returns the original string. Hi Shane, First, please excuse me because my yesterday comments were so short, writing good english messages takes time for me. Your proposal is a different approach to the problem, and I think both solutions complement each other. The vocabulary product is more flexible because you can use it from any place (not just DTML Documents) and it also allows to share common translations. The solution you propose is specially useful to translate long texts which are unlikely to be found in more than one place. And since the contents between the "dtml-str" tag could be very dynamic it also opens the door to automatic translators. > > Hi folks! I would like to propose an idea that may help to > push forward Zope internationalization. This idea sprang > from the conversation on the zope-edu-user list. > > I don't have a solution for charsets nor date formats, but I > do have an idea that would make language translation much > more feasible. > > I suggest the addition of a tag called <dtml-str>. "str" > refers to "string", the term often used when dealing with > translation in Windows applications. In DTML documents, > we currently have something like: > > <dtml-var name>, you have <dtml-var days> days of service > remaining. > > We could add a <dtml-str> tag to it as follows: > > <dtml-str DAYSREMAIN><dtml-var name>, you have <dtml-var > days> days of service remaining.</dtml-str> > > If the user wants translation, the string would be > substituted with something from a small repository. The > repository could be stored in the DTML document itself. > Somewhere in the document (it doesn't matter where, but the > bottom would be preferable) there would be something like > the following: > > <dtml-translation languages="br; brazil; brasil; port"> > <dtml-str DAYSREMAIN><dtml-var name>, deixam <dtml-var > days> dias de servico.</dtml-str> > </dtml-translation> > > When users request translation either through the > HTTP_ACCEPT_LANGUAGE header, a cookie, or a part of the URL, > the DTML processing mechanism looks through the available > languages and, if one of the specified languages is > available, replaces the text of <dtml-str> blocks with the > corresponding translation. > > The management interface for DTML documents would be > modified as follows: > > - A "default language" text box would be added to the > "Edit" page. No really need for that, if the translation is not found the text returned is the one untranslated, so if you write it in english, then english is the default language. > - A new tab would be added called "translations". > Translators would be presented with an easy translation > interface that lists all of the <dtml-str> tags and provides > a text area for entry of the translation. > > Original DTML authors would only need to add <dtml-str> tags > in strategic places. Translations would often survive > between versions of the original document. The tags would > even work in the DTML portion of Zope's management > interface. > > What's best about it is that it is not a significant change > to Zope and might take a week at most for someone to > implement. > > What do you think? > > Shane Hathaway > > > _______________________________________________ > ZIP maillist - ZIP(a)eevolute.com > http://www.eevolute.com/mailman/listinfo/zip >

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Re: [Zope] reall-time data to a Java client interface from ZOPE
by Performance.net Support 24 Mar '00

24 Mar '00

That's definitely the idea. I've been reading up on ZOPE and Medusa and this type of thing is is exactly what they were designed for. What I'm wondering now is, is it possible to plug a server I write into ZOPE in the same way that FTP is plugged in, as a behind the scenes service that starts when ZOPE starts. If so, how is this done? Are there any docs that might give a bit of detail on this subject? kh ----- Original Message ----- From: "sam" <linuxcraft(a)redspice.com> To: "Kevin Howe" <khowe(a)performance-net.com> Sent: Monday, March 20, 2000 9:37 PM Subject: Re: [Zope] reall-time data to a Java client interface from ZOPE > On Sun, 19 Mar 2000, you wrote: > I can think of some possibilities. Without knowing much about you > architecture I guess I would create an event notification service in > python/java to which you can post events using an external method from > zope and have the java client subscribe to events of interest. I You could > also have the client poll the service . hth ----- Original Message ----- Kevin Howe wrote: > I've built an application with ZOPE and would like to create a Java > interface to it (probably using jpython/wxWindows) > > Here's how it should work: > > When changes are made on the ZOPE site by a client, a notification is sent > from ZOPE to the Java interface and displayed in real-time. The idea here is > not to have a continually refreshing Java window, but a window which updates > only when it receives a message from the site to do so. > > What I don't know is how to send the data from ZOPE to the Java client. Can > anyone point me to any existing ZOPE Products/Projects/How-To's which are > similar to what I've described, or perhaps point me in the right direction? > > Kevin Howe > Performance.net Strategic Internet Solutions > http://www.performance-net.com >

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BSD and Zope
by Josh Zeidner 23 Mar '00

23 Mar '00

Hello, Where do I find info on using Zope with Free BSD? thanks, Josh Zeidner ______________________________________________________ Get Your Private, Free Email at http://www.hotmail.com

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Re: [Zope-dev] Error 404: Not Found
by Dmitry B. Khlonin 23 Mar '00

23 Mar '00

><dtml-raise type="Redirect">/</dtml-raise> Not worked. How to fire down exception with type 'NotFound' I've try following... <dtml-try> <dtml-except NotFound> <dtml-raise type="Redirect">/</dtml-raise> </dtml-try> Not worked. If I remove <dtml-try>...</dtml-try> block then parsing error occured. P.S. I have obvious idea - this case not solving in terms of Zope programming. May I astray? -----Original Message----- From: Evan Simpson <evan(a)digicool.com> To: Dmitry B. Khlonin <khl(a)paloma.spbu.ru>; R. David Murray <bitz(a)bitdance.com> Cc: Martijn Pieters <mj(a)digicool.com>; zope-dev(a)zope.org <zope-dev(a)zope.org> Date: 23 ìàðòà 2000 ã. 0:47 Subject: Re: [Zope-dev] Error 404: Not Found >----- Original Message ----- >From: Dmitry B. Khlonin <khl(a)paloma.spbu.ru> >> <dtml-call> not worked too. >> it only not render '/' >> but no execute redirect >> >> <dtml-var "RESPONSE.redirect('/')">. > >I suggest the following (untested) replacement: > ><dtml-raise type="Redirect">/</dtml-raise> > >Cheers, > >Evan @ digicool & 4-am > >

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Re: [Zope] zope_msg.log Message
by Michel Pelletier 23 Mar '00

23 Mar '00

Brian Lloyd wrote: > > Hi guys - > > Have you sent anything about this to support(a)digicool.com? If > not, please do send a report that describes your environment > and how to reproduce the problem. Stability problems are a > high priority for us, and if we have an easily reproducable > one here, I'd really like Michel to look into it if he hasn't > already... Aye carumba, I haven't even been following this thread, not the most useful subject line! Ok, it looks like there are two issues: 1) some sort of FCGI issue which I do not have the capacity to reproduce 2) the same stability issue I am currently looking into. The problem with 2) is that no one can reproduce it reliably (this may not be true after I look at something someone sent me today, I'll keep everyone updated) including myself. I have pounded a half dozen sandboxes with ab for hours and gotten nowhere. No crashes. Not a single burp. I'm, of course still looking into this, but I need more data from the folks out there. First of all, if you suspect that your Zope is dying and restarting alot, run it in debug mode like this (unix only, sorry): bash$ strace -f -e trace=none -signal=all python z2.py -D See 'man strace' for the gory details. obviously tune the parameters to z2.py to suite your needs. What we are looking for here are SIGSEGV. You'll probably see a lot of SIGUSR1s, these are normal. If you can get a SIGSEGV to happen reliably, _please_ let me know. -Michel

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Creating Instances of a ZClass/Python Class in DTML - Again
by Saravanan Bellan 22 Mar '00

22 Mar '00

I posted this couple of days back but havent got any responses. I'm desperate. Please help. >How would I create a instance of a ZClass or a pure python object in a DTML >Method? >The instance should not be added to the folder but maintained in a >session(planning to use FSSession). Thanks,

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where can I get the patch to use smtplib with the sendmail tag?
by Ava 22 Mar '00

22 Mar '00

Hello, where can I get the patch to use smtplib with the sendmail tag. I also have problems here to use sendmail with the Exchange Server. please answer directly to me, because I'm not on the zope-dev list regards, jephte clain

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