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PharoJS
by danhunfeldz＠mail.com April 5, 2022

April 5, 2022

Will PharoJS soon be updated for Pharo 10 or can you use the Pharo 9 install for 10?

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[ANN] Buoy v6.2.0 [v6.2.0] released!
by Buenos Aires Smalltalk April 5, 2022

April 5, 2022

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Re: WebDav and CalDav in Pharo ?
by Jonathan van Alteren April 4, 2022

April 4, 2022

Hi CÃ¨drick, Udo, Any update on using WebDAV/CalDAV in Pharo? We need to work with it as well. We have created a GitHub repo from the SmalltalkHub project here:Â https://github.com/objectguild/FileSystemNetwork All unit tests are green using a test server URL created usingÂ https://www.webdavserver.com. However, there seem to be some issues handling the actual file contents. Is there anybody with experience of the Pharo 8 implementation of FileSystem etc. who wants to assist? (FYI, we cannot work in Pharo 9 (or 10) yet because of technical contraints.) Best, Jonathan van Alteren Guild Member | Object Guild B.V. Software that works âwithâ you jonathan(a)objectguild.com On 18 Nov 2019, 11:04 +0100, CÃ©drick BÃ©ler <cdrick65(a)gmail.com>, wrote: > > > Hi CÃ©drik, > > > > I did some updates some time ago which I didnât push. Let me check how these work. > > Cool :). Also, would you mind doing a GitHub repo for this project ? Â I didnât find it on your account Â :) > > > I have to warn you though that Iâm not doing a lot with Pharo at the moment ... family first ð¶ > > Cool :) > > No problem and not urgent anyway, > > Thank you Udo, > > CÃ©drick > > > > > > CU, > > > > Udo > > > > Sent from my iPhone > > > > > On 18. Nov 2019, at 10:26, CÃ©drick BÃ©ler <<a href="mailto:cdrick65@gmail.com" class="">cdrick65(a)gmail.com> wrote: > > > > > > Hi all, > > > > > > I do some experiments with iCal. For now I serve a full calendar over HTTP. Not bad, but it is read only. > > > > > > Iâd like to try CalDAV. I was looking for it, and also webDAV. > > > > > > Gofer it > > > smalltalkhubUser: 'UdoSchneider' project: 'FileSystemNetwork'; > > > configuration; > > > load. > > > #ConfigurationOfFileSystemNetwork asClass project stableVersion load: 'Webdav' > > > > > > Iâve found the project of Udo, but it doesnât load on P8. I think this is due to the stream refactoring. Right now the image hung. Iâll try maybe to load it manually. But I was wondering oof there were other alternatives ? > > > > > > > > > TIA, > > > > > > CÃ©drick >

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Re: [Esug-list] [PDFtalk] Porting to non-namespace Smalltalks
by stephane ducasse March 28, 2022

March 28, 2022

BTW about porting from VW, you see a friend of mine wanted to see how to help porting Siren to Pharo. Now this is not possible because he could not get a personal VW license. So even if people want to help pointing to a store database is equivalent to /dev/null for most people. For example I cannot (and also does not for legal reason) run VW on my machine. Not talking about the new M1 I will get. S > On 27 Mar 2022, at 22:12, seasidebook <seasidebook(a)free.fr> wrote: > > Hi christian > > I took the squeakValues60 becau se I thought that this is what you wanted that we do. > I should continue but Iâm busy > > > ahhh I did not know that you already did it. > Do you need help to package your changes? > Because you can fork my repo and load your changes. > > I got lost with the explanation of OrderedDictionary below because Iâm dead :) - worked too mcuh today. > But what we can do is to package the one that is working for you under http://github.com/pharo-container <http://github.com/pharo-container> > and update the baseline to load it. > Alternatively we could see what is wrong in the pharoâs one. > > Now my brain decided to shut down :) so I need to sleep. > > S > >> Hi Stef, >> >> Great! Thank you for your work. >> Good example for the tonel format. >> >> Which sources were you using? >> How did you generate this? >> Do you use VW to create the output? >> >> >> For the last ESUG (2.5 years ago â sigh), I already did the transformation for Values for Pharo. Thanks to you, I revised them and published the result on GitHub (https://github.com/PortingPDFtalk/PharoValues <https://github.com/PortingPDFtalk/PharoValues>) and added a Pharo porting page to the wiki (https://wiki.pdftalk.de/doku.php?id=pharoport <https://wiki.pdftalk.de/doku.php?id=pharoport>). Please have a look. >> >> The fileouts are for Pharo versions 6.1, 7.0, 8.0 and 9.0 (7.0 to 9.0 have identical sources). The sources load without errors or warnings and all 27 tests pass. >> >> >> Some of the problems in your code have to do with OrderedDictionary as superclass of Valuemap. When I did my first round on the port, I had a class OrderedDictionary in my Values implementation. Unfortunately, OrderedDictionary does not work as I expected. >> >> (OrderedDictionary with: #a -> 1 with: #b -> 2) = (OrderedDictionary with: #b -> 2 with: #a -> 1) >> >> answers true, although the order is different. Therefore, it cannot be used as value. >> >> Instead of raising this issue on a Pharo list (sorry), I decided to use a new name: Valuemap. >> A Valuemap is an OrderedDictionary where the order is relevant for comparisons. >> Squeak had the same problem where it was considered a bug and fixed. >> While I subclass Dictionary for Valuemap in Pharo, I can use OrderedDictionary in Squeak. This removes a lot of methods from the fileout. >> >> >> A remark about the renamings you propose in your commit comment. >> Thank you for the suggestions, but I decline for two reasons: >> Names for classes, methods and variables are very important to me. Naming is part of the creative expression of the code author. I do think much about the right names and therefore, I claim the liberty and right to name things according to my feeling. > > Yes now you may want to read an excellent book that just came out: http://books.pharo.org <http://books.pharo.org/> Pharo with Styles. > If you want to have future contributors this is good to follow good practices > Else Iâm quite sure that you would not like a French Pharo :) > >> Maybe my names are a bit influenced by German, where we tend to have longer names. Therefore, my names are not so heavily camel-cased J. In contrast, Pharo has quite a different style with a love for camel-casing J (#timeStamp, #nanoSeconds etc.). >> From a practical view, it would be a lot of work to rename all references to the items in this basic systems library. There is a lot of code out there using it. Of course, if there is a good reason for a renaming (like a spelling mistake or misleading name), it should be done and I am appreciating any suggestions. > > A pattern that we use is the following. > You introduce a new name and let the old one as an empty subclass. Like that you can migrate and still be backward compatible. > > For the method level refactoring we have a gorgeous mechanism that automatically rewrite client codeâ¦. > > http://www.jot.fm/issues/issue_2022_01/article1.pdf <http://www.jot.fm/issues/issue_2022_01/article1.pdf> > > S

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Re: [Esug-list] [PDFtalk] Porting to non-namespace Smalltalks
by christian.haider＠smalltalked-visuals.com March 28, 2022

March 28, 2022

Hi Stef, Great! Thank you for your work. Good example for the tonel format. Which sources were you using? How did you generate this? Do you use VW to create the output? For the last ESUG (2.5 years ago Â sigh), I already did the transformation for Values for Pharo. Thanks to you, I revised them and published the result on GitHub (https://github.com/PortingPDFtalk/PharoValues) and added a Pharo porting page to the wiki (https://wiki.pdftalk.de/doku.php?id=pharoport) Please have a look. The fileouts are for Pharo versions 6.1, 7.0, 8.0 and 9.0 (7.0 to 9.0 have identical sources). The sources load without errors or warnings and all 27 tests pass. Some of the problems in your code have to do with OrderedDictionary as superclass of Valuemap. When I did my first round on the port, I had a class OrderedDictionary in my Values implementation. Unfortunately, OrderedDictionary does not work as I expected. (OrderedDictionary with: #a -> 1 with: #b -> 2) = (OrderedDictionary with: #b -> 2 with: #a -> 1) answers true, although the order is different. Therefore, it cannot be used as value. Instead of raising this issue on a Pharo list (sorry), I decided to use a new name: Valuemap. A Valuemap is an OrderedDictionary where the order is relevant for comparisons. Squeak had the same problem where it was considered a bug and fixed. While I subclass Dictionary for Valuemap in Pharo, I can use OrderedDictionary in Squeak. This removes a lot of methods from the fileout. A remark about the renamings you propose in your commit comment. Thank you for the suggestions, but I decline for two reasons: 1. Names for classes, methods and variables are very important to me. Naming is part of the creative expression of the code author. I do think much about the right names and therefore, I claim the liberty and right to name things according to my feeling. Maybe my names are a bit influenced by German, where we tend to have longer names. Therefore, my names are not so heavily camel-cased :). In contrast, Pharo has quite a different style with a love for camel-casing :) (#timeStamp, #nanoSeconds etc.). 2. From a practical view, it would be a lot of work to rename all references to the items in this basic systems library. There is a lot of code out there using it. Of course, if there is a good reason for a renaming (like a spelling mistake or misleading name), it should be done and I am appreciating any suggestions. Happy hacking, Christian Von: seasidebook <seasidebook(a)free.fr> Gesendet: Donnerstag, 24. MÃ¤rz 2022 21:04 An: Any question about pharo is welcome <pharo-users(a)lists.pharo.org>; Pharo Development List <pharo-dev(a)lists.pharo.org> Cc: christian.haider(a)smalltalked-visuals.com Betreff: Re: [Esug-list] [PDFtalk] Porting to non-namespace Smalltalks Hi guys I started to port Values to Pharo. If you want to give an hand my current effort is here. <https://github.com/Ducasse/PharoValues> https://github.com/Ducasse/PharoValues should migrate license and other stuff too. S On 1 Mar 2022, at 19:08, <mailto:christian.haider@smalltalked-visuals.com> christian.haider(a)smalltalked-visuals.com wrote: Hi all, PDFtalk is a PDF library for VisualWorks[1]. The library has been ported successfully to Gemstone[2]. Now, there is interest from companies in a port to Squeak and VA Smalltalk. The project[3] has started and we are making good progress. The first step: porting the Values package. This is easy, because there are no namespace issues. The next step is to implement class renamings so that namespaced classes can be renamed to global prefixed names. Then PDFtalk with all its components, except for the UI, can be ported. The porting approach is different to the traditional way of loading and fixing. The import files for other Smalltalks are generated from VisualWorks where the code is transformed by declarative rules. The approach is documented in [4]. I set up a GitHub organization for this project[5]. There, the fileouts for each dialect are published (Gemstone, Squeak and VA Smalltalk so far), so that people without VisualWorks can work with the code in their Smalltalk. Also, I record and explain all steps of the porting process for Squeak in great detail[6], so that people can follow it. I would like to invite Smalltalkers from all dialects to take part in this project. The code transformations for Squeak will be quite similar to the ones needed for Pharo and Cuis. Therefore, each port to one Smalltalk will help the port to other Smalltalks. Any takers? Happy hacking, Christian [1] <https://wiki.pdftalk.de/doku.php?id=start> https://wiki.pdftalk.de/doku.php?id=start [2] <https://wiki.pdftalk.de/doku.php?id=pdftalk4gemstone> https://wiki.pdftalk.de/doku.php?id=pdftalk4gemstone [3] <https://wiki.pdftalk.de/doku.php?id=pdftalknonnamespacefileout> https://wiki.pdftalk.de/doku.php?id=pdftalknonnamespacefileout [4] <https://wiki.pdftalk.de/doku.php?id=smalltalktransform> https://wiki.pdftalk.de/doku.php?id=smalltalktransform [5] <https://github.com/PortingPDFtalk> https://github.com/PortingPDFtalk [6] <https://wiki.pdftalk.de/doku.php?id=valuesportinglog> https://wiki.pdftalk.de/doku.php?id=valuesportinglog _______________________________________________ Esug-list mailing list -- <mailto:esug-list@lists.esug.org> esug-list(a)lists.esug.org To unsubscribe send an email to <mailto:esug-list-leave@lists.esug.org> esug-list-leave(a)lists.esug.org

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How can I use Pharo as an app development space (+ question about jobs)?
by lucasrodriguesoficial5＠gmail.com March 26, 2022

March 26, 2022

I'm starting my career as a systems designer and analyst, and for my first project I've decided to make an app/executable in Smalltalk with the bold goal of vanquishing bureaucracy in any public-person interactions which need paper documentation to go through, such as immigration, social programs, housing, or even legal matters. The idea is to find someone to implement it on a national scale somewhere, then spread to the world; or at least land myself a job overseas with the idea as a portfolio. Any kind of job would do, though a outsourcing/freelancing one would be the best. Problem is, Pharo doesn't have an effective framework for deployable desktop/phone applications, from what the users of its dedicated Discord server said. What toolkit, tutorial or assisting language (could I use to make standalone protoypes for enterprises? I already have the class behavior of the project done, the UI interaction is whatâs lacking. If there really isnât any, should I really start again with a brand new programming language and only use Pharo as a reference? What also concerns me not only in Pharo but in programming in general is how nothing ever seems to be enough to work for an enterprise, more so as an immigrant. My fear is that, even after the project is finished, I wonât be able to meet the requirements of anyone interested in hiring (my qualifications are a degree in Game Design and few months of an internship experience). People always say that the important thing is to solve problems regardless of whether you know one or many programming languages, but how can that be true when supposedly the most powerful OO language canât deploy a product? How are things everâ¦ done in the industry? What knowledge is a staple to anyone willing to work on Systems Design and Analysis field?

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UK Smalltalk User Group Meeting - Wednesday, March 30th
by Giovanni Corriga March 22, 2022

March 22, 2022

The next meeting of the UK Smalltalk User Group will be held on Wednesday, March 30th 2022. Come to hear news about Glamorous Toolkit, the moldable development environment. We were busy over the past year: beside everything else, GT also became a multi-language notebook + programmable knowledge management platform. By this we unify the flows of programming, data science and knowledge management. And there might be a couple of other surprises, too. Tudor GÃ®rba is a software environmentalist and CEO of feenk.com where he works with an amazing team to make the inside of systems explainable. Much of the work is embodied in Glamorous Toolkit (gtoolkit.com) a novel environment that enables Moldable Development. This will be an online meeting from home. If you'd like to join us, please sign up in advance on the meeting's Meetup page to receive the meeting details. Donât forget to bring your laptop and drinks!

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Null Object Pattern
by sean＠clipperadams.com March 21, 2022

March 21, 2022

I had some chaining that was getting too complex due to many nil checks, so I started to refactor using a Null Object. However, Iâm struggling a bit with the refactor due to inlining. Since #ifNil: variants might be inlined, it seems that something like: anObject with a long chain of messages ifNotNil: \[ :result | ââ¦â \] must be changed into something like: anObject with a long chain of messages isNil ifFalse: \[ anObject with a long chain of messages ââ¦â \]. Obviously, I can use a temp to have: result := anObject with a long chain of messages. result isNil ifFalse: \[ result ââ¦â \]. But both seem ugly and make me question using this pattern. 1. What am I missing? 2. After 40+ years of Mooreâs Law, can we turn off these inlines by default?

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Positions at lifeware :)
by stephane ducasse March 21, 2022

March 21, 2022

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Another question about Spec2 and SpTablePresenter
by Mark O'Donoghue March 21, 2022

March 21, 2022

Howdy all I am making progress with quite a large application which relies heavily on Spec2 ( but Spec2 is such a big learning curve for me â especially given the incomplete documentationâ¦ ð) I am currently struggling with the following issue: I have a SpTablePresenter which shows a collection of domain objects (subclassed from Model). The domain object are instances of âAssetâ which is a relatively simple class. The table works fine. Now, I need to be able to update some columns , but I donât think I want to build a separate form for doing classic CRUD operations. (There is no need for create or delete functionality â so an in-situ update seems desirableâ¦). Iâve made a start using SpStringTableColumn >> beEditable and #onAcceptEdition: But I canât see how to work out what row and column has changed, and how I can update the corresponding Asset instance(s). It thought it would be handled using #whenModelChanged: but there are models in many places (and at several levels in the Spec hierarchy)â¦ Iâve tried following it all the way down to the adapters and morphs but I canât see how the freshly edited cell interacts with the model or announcements. (BTW - It doesnât look like the âselected itemâ features are appropriate since you can do edits in other rows regardless of what row is/isnât selected.) Is there a correct and/or elegant way to detect these cell changes in a SpTablePresenter and apply them to my domain objectsâ¦? Cheers Mark From: Mark O'Donoghue <mark.odonoghue.2010(a)gmail.com> Sent: Sunday, 4 July 2021 5:26 PM To: pharo-users(a)lists.pharo.org Subject: Question about Spec2 and SpTablePresenter Howdy all Iâve got stuck trying to manage Tables â over 12 hours now and Iâm out of ideas!. â¹ Any observations / suggestions are most welcomeâ¦ Iâve been loading small external files of transactions using NeoCSV into Spec2 tables. I am trying to use Fuel to persist the table contents so that my application will re-load the working state from where I finished in the last session. (Iâve opted for Fuel as a simple alternative to having to do the whole object relational mapping thing.) The idea is that transactions (and potentially some manual adjustments) will be processed over time. (This is preferable to having to reload all files from the beginning evert time I run the applicationâ¦) The Spec2 tables have been working well until I tried to persist them. I canât seem to fully re-load them to a previously saved state. For example - I can restore the essential contents of my table in most circumstances using: restoreObjects âfilePresenter1 is a SpTablePresenterâ | objects savedEntry | objects := CpPersist restoreObjectsFromFileNamed: 'E:\Me\zzzST-Test\demo.fuel'. recentFileList := objects at: 1. currFileFilter := objects at: 2. savedEntry := objects at: 3. self updateFilterButton: currFileFilter. filteredFileList := self filterFilesUsing: currFileFilter. filePresenter1 items: filteredFileList. savedEntry ifNotNil: [filePresenter1 selectItem: savedEntry ]. However, if any of the table columns are re-sorted , the re-load operation gets confused and I canât get the saved a saved selected item to become selected again. (It seems to be confusing the index numbers of the sorted and unsorted lists â even when I match by contents rather than index.) (I also created an equality test to ensure equivalent entries are recognised by the #= operation in the list of the underlying model ). This all works fine - unless I sort a column! Since this approach was going to be used on several screens Iâd really like to find a solution. Cheers Mark Perth, Western Australia

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