smallwiki February 2003

smallwiki@list.inf.unibe.ch

6 participants
10 discussions

by Lukas Renggli

Hi Masashi, I am currently developing a new Smalltalk Wiki implementation (http://scgwiki.iam.unibe.ch:8080/SCG/520) and I am planning to use SIXX to store my large tree-structures to xml. It seems to me the perfect solution, because it can handle circular references and it dialect independent. My first attempt was to dump everything out into a XML file using the following code from your tutorial: sws := SixxWriteStream newFileNamed: 'root.xml'. sws nextPut: wikiRootNode. sws close. The XML file looks fine, but unfortunately the XML parser is not able to read that file again. The problem seems to be the huge binary data (images, pdf) that is stored within ByteArray's. I think storing binary-data to XML is not a good idea anyway, so I want them to be put in special external files. The only thing to change - at least I think so - is my Resource class, that contains this binary data. So it should only dump the filename of the binary data and not the data itself. To archive this goal, I wrote something similar to: Resource>>sixxContentOn: aStream indent: level context: dictionary | filename | filename := self generateUniqueFilename. self dumpToBinaryFile: filename. super sixxContentOn: aStream ident: level context: dictionary But how do I prevent SIXX from saving the binary data again, without hardcoding the other i-vars? How do I archive the loading of the binary data? Could you give me some hints? Thanks a lot for your help Lukas -- Lukas Renggli http://renggli.freezope.org

21 years, 10 months

Meeting Today

by Lukas Renggli

Hi, I'm not feeling very well, so I won't be able to come to the meeting today. But of course I am reachable by e-mail. I plan to do some heavy refactorings on the Structure hierarchy and update the tests today. I don't know how far I will get. What I plan to do is: - find a good way to map title to urls - include property management - move the template, title, ... i-vars to properties - create a management interface for properties BTW, do we want to be able to access properties directly "structure title" or only with special function calls like "structure propertyAt: #title"? Some further goals are (probably not for today): - attach the security-model - develop a more generic interface for storage Sorry for yesterday's e-mail in german: I discussed with Hannes about SIXX and how easy it is for a dump-out storage. As I already explained the XML-Parser gets messed-up when parsing very long ByteArrays (used to store resources). So I think the way to go is to store the resource-data as external binary files. I don't know yet if this solves the problems, but at least I hope so. Cheers Lukas -- Lukas Renggli http://renggli.freezope.org

21 years, 10 months

Re: have register to

by Lukas Renggli

> http://scgwiki.iam.unibe.ch:8080/SCG/558 > > To reserve a slot for talking with ralph Friday Morning - SmallWiki (10:00am - 10:30am) I hope to get rid of that flu until friday, but I cannot promise anything. Cheers Lukas -- Lukas Renggli http://renggli.freezope.org

21 years, 10 months

Re: Feedback zu SmallNic SmallWiki Präsentation vom letzen Samstag

by Hannes Hirzel

Salut Lukas Lukas Renggli <renggli(a)student.unibe.ch> wrote: > SIXX hatten wir eigentlich schon ganz zu Beginn des Projektes als > mögliche Erweiterung im Auge. Gerade letzte Woche habe ich es dann > integriert, weil ich es für die Präsentation benötigte. Es ist wirklich > faszinierend, wie einfach und schnell man dieses Framework einbauen und > nutzen kann. Schick doch bitte "Masashi Umezawa" <umejava(a)mars.dti.ne.jp> ein Feedback mit diesem Inhalt. Er leistet eine gute Arbeit, kriegt aber nicht so viel Echo von der Liste. > Wir werden weiterhin mit SIXX arbeiten, die Bilder und andere binäre > Daten müssen aber in separaten Dateien abgelegt werden. Das ist zwar > auch vom Platzbedarf her gesehen vorteilhaft, Ist vom Nutzer / Betreiber-Standpunkt aus sehr gut! aber man kommt nicht mehr > mit nur 3 Zeilen Code aus. Ja, leider! Hoffentlich nicht allzuviel Mehrarbeit. Liebe Grüsse Hannes

21 years, 10 months

Re: Feedback zu SmallNic SmallWiki Präsentation vom letzen Samstag

by Lukas Renggli

Hallo Hannes, > Ich denke eine relativ einfache Addition könnte den "Verkaufswert" > für euer Wiki massiv erhöhen. Wenn ihr als Rendering-Option > den Export nach XML (SIXX * in Squeakmap) einbaut. > > Es dürfte sich einfach darum handeln SIXX zu laden > und einige wenige Zeilen am richtigen Ort einzubauen > und ihr habt euren Export nach XML. SIXX hatten wir eigentlich schon ganz zu Beginn des Projektes als mögliche Erweiterung im Auge. Gerade letzte Woche habe ich es dann integriert, weil ich es für die Präsentation benötigte. Es ist wirklich faszinierend, wie einfach und schnell man dieses Framework einbauen und nutzen kann. Leider scheint es aber Probleme beim Laden der XML-Daten zu geben (daran ist meine Präsentation fast gescheitert). Besonders bei den Byte-Arrays, welche ich verwende um die binären Daten der Bilder abzulegen, dreht der XML-Parser durch und es treten sehr komische Fehler auf. Wir werden weiterhin mit SIXX arbeiten, die Bilder und andere binäre Daten müssen aber in separaten Dateien abgelegt werden. Das ist zwar auch vom Platzbedarf her gesehen vorteilhaft, aber man kommt nicht mehr mit nur 3 Zeilen Code aus. > Das würde sicher auch einen guten CT-Artikel abgeben. Ja, das denke ich mir auch. Es gab ja vor kurzem einen Vergleich von verschiedenen Wiki-Implementationen im CT, leider wurde darin aber nicht auf die Smalltalk-Varianten eingegangen. Aber es ist dennoch gut zu wissen was die Konkurrenz kann > Dies also ein Feedback auf die interessante Demo vom letzten > Samstag Vielen Dank und liebe Grüsse Lukas On Montag, Februar 17, 2003, at 08:46 Uhr, Hannes Hirzel wrote: > Hallo Lukas > > Obwohl ich vielleicht etwas desinteressiert deiner Präsentation gefolgt > bin, muss ich > im nachhinein sagen, dass mich das was ihr macht sehr interessiert. > > Ich bin auch gerne bereit ggfs. ein Alphaversion zu testen.... > > Der Gedanke im Smalltalk-Image drin ein komplette Objektnetz von > Dokumenten zu haben, die sich auf verschiedene Weise rendern > können ist wirklich faszinierend. > > Ich denke eine relativ einfache Addition könnte den "Verkaufswert" > für euer Wiki massiv erhöhen. Wenn ihr als Rendering-Option > den Export nach XML (SIXX * in Squeakmap) einbaut. > > Es dürfte sich einfach darum handeln SIXX zu laden > und einige wenige Zeilen am richtigen Ort einzubauen > und ihr habt euren Export nach XML. > > Damit habt ihr dann sogar ein Autorensystem (Wiki-Syntax) > das XML produziert (ein Content Managemet System). > > Das würde sicher auch einen guten CT-Artikel abgeben. > > Dies also ein Feedback auf die interessante Demo vom letzten > Samstag > > Grüsse und weiterhin 'happy squeaking' > > > Hannes Hirzel > > -------------------------------------------------------------- > * Mail zu SIXX von heute >> Date: Tue, 18 Feb 2003 00:55:17 +0900 >> From: "Masashi Umezawa" <umejava(a)mars.dti.ne.jp> >> Subject: Re: port of prevayler >> To: "The general-purpose Squeak developers list" >> <squeak-dev(a)lists.squeakfoundation.org> >> reply-to: The general-purpose Squeak developers list >> <squeak-dev(a)lists.squeakfoundation.org> >> >> Hi, >> >>> Yes, much better. :-) We have one good language (Smalltalk) why not >>> use >>> it? All this focus on XML (in the IT industry over all that is) is >>> really tiresome. >> >> Tiresome, indeed. But I think SIXX has some advantages for serious, >> robust >> systems. >> >> - It automatically resolves circular or shared references. >> (In "do it" approach, you have to write it on your own). >> >> - It is safe. >> ("Do it" could be a security hall. You can insert dangerous >> expressions). >> >> - It is portable. >> (SIXX has been ported to 3 Smalltalks. It can be converted to other >> data >> structures by processing parsed dom tree). >> >> So I think it is oversimplified to say "much better". >> >> --- >> [:masashi | ^umezawa] -- Lukas Renggli http://renggli.freezope.org

21 years, 10 months

Idea : automatic information in templates

by Stephane Ducasse

Hi What I would like to be able to say is for a given page that it get automatically time-stamped with the lats update. Stef Prof. Dr. Stéphane DUCASSE (ducasse(a)iam.unibe.ch) http://www.iam.unibe.ch/~ducasse/ "if you knew today was your last day on earth, what would you do different? ... especially if, by doing something different, today might not be your last day on earth" Calvin&Hobbes

21 years, 10 months

Tagging page could be a really cool extension.

by Stephane Ducasse

Prof. Dr. Stéphane DUCASSE (ducasse(a)iam.unibe.ch) http://www.iam.unibe.ch/~ducasse/ "if you knew today was your last day on earth, what would you do different? ... especially if, by doing something different, today might not be your last day on earth" Calvin&Hobbes

21 years, 10 months

Stressing SmallWiki design on integration

by Stephane Ducasse

Hi all, I think that tuesday we should look at a simple problem of integration and see how the extended actions works or not. I was thinking that we will need a kind of configuration object that represents which kind of extension are required. Stef Prof. Dr. Stéphane DUCASSE (ducasse(a)iam.unibe.ch) http://www.iam.unibe.ch/~ducasse/ "if you knew today was your last day on earth, what would you do different? ... especially if, by doing something different, today might not be your last day on earth" Calvin&Hobbes

21 years, 10 months

Smalltalk Lectures

by Stephane Ducasse

Hi all so I will do normally the lectures on Smalltalk during the summer semester, at the place of the interpreter model lectures. This way we will have one lecture in summer and one lectures in winter. I will send an announce soon when the schedule will be finalized. Lukas we will have to discuss because I want them to understand, write Unit tests, extend, SmallWiki. Stef I will start to check in which status is my current migration to powerpoint is. and let you know. Prof. Dr. Stéphane DUCASSE (ducasse(a)iam.unibe.ch) http://www.iam.unibe.ch/~ducasse/ "if you knew today was your last day on earth, what would you do different? ... especially if, by doing something different, today might not be your last day on earth" Calvin&Hobbes

21 years, 10 months

What I did the last week

by Lukas Renggli

Hi Smalltalkers, As you already know I won't come to the meeting the coming week. Therefore I thought it would be good to give you a brief list of the things I did this week: - First, I went a bit deeper into SIXX to archive xml persistence of the data. It was a bit tricky, because SIXX does a deep-save by default and we would have all data in one single xml-file. Therefore I added code to create a directory structure in the filesystem and to put each structure-item into a single file. Currently there is no loading implemented and the code is not attached to the web-interface, but you can see a small example in StoreTests>>testSave. - Then I started a complete refactoring of the inheritance in the action classes, because we currently had some ugly code-duplications. Most of the problems are solved now but not all the code of the view-actions have been pushed-up yet. - At the same time I improved the versioning and history mechanism. You have now the possibility to restore or to revert to an old version and to truncate history information from any point. I did not write tests for this new features, but more is expected to come. Also I did not add code to handle these things for whole wiki trees, because I think that will be the task for a special management plugin. - I refactored the visitor-classes, because there was a lot of unnecessary baggage and I had to deal with inheritance. Especially the stuff with inheritance (e.g. when #acceptPage: is called also #acceptStructure: has to be called because Page inherits from Structure), but I think I found a good solution. - Today I tested everything on my new mac ;-) , because I couldn't leave that machine any longer without touching but learning exams next to. Cheers Lukas -- Lukas Renggli http://renggli.freezope.org

21 years, 10 months

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smallwiki February 2003