- Pharo-users - lists.pharo.org

patterns for representing enumerations/constants

by Peter UhnÃ¡k

Hi, as this probably doesn't have one solution I am interested in your approach, if you have any. The problem is that often you want to create instances (or just return constants) in some particular domain, e.g. Color red. Color blue. Unfortunately this doesn't scale, because putting unary methods on the class-side is a good way to break your image. *1) capitalize* doesn't follow method naming conventions Color Red. ParticipantType Organization (uncapitalized returns ClassOrganization) VisibilityKind Package (package returns package) *2) have it on instance-side* need for an extra singleton and more typing Color default red. ParticipantType default organization. VisibilityKind default package. maybe #enum could work better? Color enum red. VisibilityKind enum package. *3) use ALLCAPS* looks like C/Javaâ¦ ugly af also same issue as 1) Color RED. ParticipantType ORGANIZATION. VisibilityKind PACKAGE. *4) use some prefix/suffix?* may not be enough, can be confusing when implementing a domain with given specifications Color redColor. ParticipantType organizationType. VisibilityKind packageKind *5) something better?* All the above work (obviously) but all are broken to some extentâ¦ so it's picking the best of the worst. -_- Any ideas appreciated, Peter

March 23, 2016

Re: [Pharo-users] ZnUrl>>#= - Why Require Same Classes?

by Sven Van Caekenberghe

> On 23 Mar 2016, at 15:37, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > > = anObject > ^ self class == anObject class > ... > > Most of the time, I've seen a test for #species, not class. This matters > because I have a custom ZnUrl subclass that I'd like to be equal to a ZnUrl > pointing to the same place. Yes, that might be better. > While we're on the subject, I'm not an expert on hashing, but isn't it a > problem that ZnUrl>>#hash refers to #segment, which is not immutable? I don't think the mutability is a problem (collection's hash is similar), but apart from that, the hash implementation looks a bit weird (too simple). I am curious though why you subclasses ZnUrl. If you did not add structure but only behaviour you could have added some extension methods. > ----- > Cheers, > Sean > -- > View this message in context: http://forum.world.st/ZnUrl-Why-Require-Same-Classes-tp4886102.html > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

March 23, 2016

ZnUrl>>#= - Why Require Same Classes?

by Sean P. DeNigris

= anObject ^ self class == anObject class ... Most of the time, I've seen a test for #species, not class. This matters because I have a custom ZnUrl subclass that I'd like to be equal to a ZnUrl pointing to the same place. While we're on the subject, I'm not an expert on hashing, but isn't it a problem that ZnUrl>>#hash refers to #segment, which is not immutable? ----- Cheers, Sean -- View this message in context: http://forum.world.st/ZnUrl-Why-Require-Same-Classes-tp4886102.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 23, 2016

Re: [Pharo-users] Setup a Launcher distribution for Pharo trainings/presentations on Windows

by Ben Coman

On Wed, Mar 23, 2016 at 5:22 PM, Martin BÃ¤hr <mbaehr(a)email.archlab.tuwien.ac.at> wrote: > the kids were more interested in IoT I'm think of getting some ESP8286 [1] modules to connect Pharo (and thus possibly Phratch0 to via TCP/IP. There is a lot of buzz around IoT and I think the ESP8286 might be a way for Pharo to piggyback that. http://hackaday.com/2014/08/26/new-chip-alert-the-esp8266-wifi-module-its-5/ cheers -ben

March 23, 2016

Setup a Launcher distribution for Pharo trainings/presentations on Windows

by Torsten Bergmann

Hi Martin, >the kids were more interested in IoT and android workshops than learning smalltalk. Yes - I played lately with some stuff myself like IBeacons (which you could get now for small money already) and BLE on Android. The Smart Mirror is also a nice idea. All cool stuff as well. >i need to work on a more capturing introduction for next time. >or maybe look into smalltalk for robots or something like that. Maybe the Pi would be interesting too next time: https://www.youtube.com/watch?v=sfxFqQIuawg https://medium.com/concerning-pharo/pharo-pi-9eef257b6a21 Bye T.

March 23, 2016

Re: [Pharo-users] Setup a Launcher distribution for Pharo trainings/presentations on Windows

by Damien Cassou

Torsten Bergmann <astares(a)gmx.de> writes: > I was asked on #slack by user embee (Martin Baehr) how he can create an up to date setup with "PharoLauncher" > configuration locally that he can afterwards easily distribute ("unzip and go") to 40 Windows PCs for a > training/presentation. > He was preparing Pharo for Singapore FOSSASIA conference workshop at the science center computer lab. > I helped him with the following short guide that may be useful to others too. that's amazing work Torsten, thank you very much. What about adding a Jenkins job that would create this automatically? -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." --Winston Churchill

March 23, 2016

Re: [Pharo-users] [Pillar] Logo for Pillar

by stepharo

I think more about the ones below the pier :) http://www.routard.com/photos/los_angeles/18237-la_jetee_de_malibu.htm http://fr.dreamstime.com/photos-libres-de-droits-jetÃ©e-avec-le-restaurant-Ã -la-mer-baltique-allemagne-image14938888 but this is not good for a logo. the one that sustain the pier :) It was literally that in fact Le 22/3/16 16:00, Ben Coman a Ã©crit : > On Fri, Mar 18, 2016 at 10:30 PM, Thibault ARLOING > <thibault.arloing(a)hotmail.fr> wrote: >> Hi, >> >> >> With a mate, we've worked on a logo for Pillar. >> >> We just want feedbacks on it. > I like the style. But as a logo I think it is too thin. > > When I think of pillar I think of > http://tinyurl.com/pillar-images > > And for a logo, something like... > http://www.presentation-process.com/wp-content/uploads/powerpoint-pillar-tu… > > Attached is a concept I knocked up. Its too detailed for a logo, and > the font was plagiarized from > http://tinyurl.com/hhc5a3d > but may provide inspiration. > > cheers -ben

March 23, 2016

Beta testers for the Pharo mooc

by stepharo

Hi guys we are looking for beta tester (We do not have yet the english translation for the mooc). If you are interested contact me on stephane.ducasse(a)inria.fr Stef

March 23, 2016

Re: [Pharo-users] Seaside 3.1 and 3.2 in Pharo 5

by Johan Brichau

Torsten pointed me to a typo I made for loading version 3.2.0. This is the correct version: âLoad pre-release 3.2" Metacello new configuration: 'Seaside3'; repository: 'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main' <http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main'>; version: â3.2.0'; load You could also already use the symbolic version #release3.2, but itâs not released yet :) Metacello new configuration: 'Seaside3'; repository: 'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main' <http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main'>; version: #'release3.2'; load thx for trying and the feedback! Johan > On 20 Mar 2016, at 19:49, Johan Brichau <johan(a)inceptive.be> wrote: > > Hi Pharoers, > > If you are looking to use Seaside in Pharo 5, please go ahead and let us know if you run into any issues. > Seaside 3.1.5 and 3.2.0 (unreleased) load into Pharo 5 and all tests are green [1]. > > Also: I know the finalization of 3.2.0 is long overdue, so news about that is coming soon. > > cheers, > Johan > > [1] https://ci.inria.fr/pharo-contribution/job/Seaside/ <https://ci.inria.fr/pharo-contribution/job/Seaside/> > > âLoad release 3.1" > Metacello new > configuration: 'Seaside3'; > repository: 'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main' <http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main'>; > version: #'release3.1'; > load. > > âLoad pre-release 3.2" > Metacello new > configuration: 'Seaside3'; > repository: 'http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main' <http://www.smalltalkhub.com/mc/Seaside/MetacelloConfigurations/main'>; > version: #â3.2.0'; > load

March 23, 2016

Re: [Pharo-users] Setup a Launcher distribution for Pharo trainings/presentations on Windows

by stepharo

cool ressource!!! Le 23/3/16 09:45, Torsten Bergmann a Ã©crit : > Hi, > > I was asked on #slack by user embee (Martin Baehr) how he can create an up to date setup with "PharoLauncher" > configuration locally that he can afterwards easily distribute ("unzip and go") to 40 Windows PCs for a > training/presentation. > > He was preparing Pharo for Singapore FOSSASIA conference workshop at the science center computer lab. > > I helped him with the following short guide that may be useful to others too. > > Have fun > T. > > > ------------------------------------------------------------------------------------------------------------------------------------------------- > > A. Portable version of Launcher vor Windows > =========================================== > 1. Go tohttps://ci.inria.fr/pharo/view/Launcher/job/Launcher/ and click on "VERSION=stable" > for a green build > 2. Download "Pharo-win.zip" > (Direct link ishttps://ci.inria.fr/pharo/view/Launcher/job/Launcher/PHARO=40,VERSION=stable,VM=vm,label=linux/lastSuccessfulBuild/artifact/Pharo-win.zip) > > 3. Extract this to c:\ so you end up with a directory "c:\Pharo" > > B. Create some folders > ====================== > 4. Create a new folder "images" > > 5. Create a new folder "vm" with two subfolders "spur" and "nonspur" > > So you end up with > > - Pharo > !- images > !- vm > !- spur > !- nonspur > > C. Install stable "non-Spur" VM > =============================== > The existing stable VM (before the introduction of Spur) is required for all "PreSpur" images with image version <= 50496 > (so latest Pharo 4 and initial images when Pharo 5 was started before switching to Spur during Pharo 5 development) > > 6. Visithttp://files.pharo.org/vm/pharo/win/ and download "Pharo-VM-win-stable.zip" > > 7. This is the Pharo 4 stable Cog VM. Extract the contents to "C:\Pharo\vm\nonspur" > > 8. Copy the source files > C:\Pharo\PharoV10.sources also to C:\Pharo\vm\nonspur > C:\Pharo\PharoV20.sources also to C:\Pharo\vm\nonspur > C:\Pharo\PharoV30.sources also to C:\Pharo\vm\nonspur > C:\Pharo\PharoV40.sources also to C:\Pharo\vm\nonspur > > D. Install latest Spur VM > ========================= > The new, fast and shiny Spur VM is required for all "Spur" images with image version 50497 onwards > (so latest Pharo 5) > > 9. Visithttp://files.pharo.org/vm/pharo-spur32/win/ and download "PharoVM-Spur32-win-latest.zip" > > 10. This is the "bleeding edge" Spur VM. Extract the contents to "C:\Pharo\vm\spur" > > 11. Copy only the source file > C:\Pharo\PharoV40.sources also to C:\Pharo\vm\spur > > E. Configure Pharo Launcher > =========================== > 11. Start C:\Pharo\Pharo.exe by double clicking on it, this will open the Pharo Launcher window > > 12. At the bottom right corner of the Window there is a button called "Open Settings". This opens > the settings browser for Pharo Launcher. Click on the node "PharoLauncher" in the settings tree. > > 13. For the setting "Spur VM Full Path" enter ".\vm\spur\Pharo.exe" and hit ENTER > > 14. For the setting "VM Full Path" enter ".\vm\nonspur\Pharo.exe" and hit ENTER > > F. Hack the "images" folder location to be relative > =================================================== > 15. When you try to change "Location of your images" to be relative like ".\images" you will > notice that it always changes back to an absolute path "C:\Pharo\images". So we need to hack > this: > > 16. Hit "SHIFT" + "ENTER" to open the Pharo Spotter. Enter "PhLDirectoryBasedImageRepository" > to open a browser on this class. and change the class method #location to look like > that > > location > ^ FileSystem workingDirectory / 'images' > > 17. Close the class browser, close the settings browser and leave the Pharo Launcher by > clicking on "Quit" in the bottom right corner. Note that the launcher image is saved > on exit - so our code change will be in effect when we start Launcher again. > > Now ZIP the c:\Pharo folder and you can extract it on any computer that you like. > > So when you distribute the ZIP the image folder should be clean. But you can also download > and include preconfigured images that you like your audience to be working with. > > G. Sharing caches > ================= > With the above setup each time you download and start an image using the Launcher a new > "package-cache" for Monticello/Metacello downloads will be created for each image directory. > > To avoid such a cache per image and use a general cache for all images it is helpful to > change the package-cache location in each image. This can easily be done: > > 18. Start an image and evaluate > > StartupPreferencesLoader preferencesGeneralFolder > > to find out which preferences folder usually is used. In my example this is > C:\Users\root\AppData\Roaming\pharo > > 19. Go to this folder and create a file called "startup.st" with the following contents: > > |mczCache| > mczCache := 'C:\Software\Pharo\cache' asFileReference. > MCCacheRepository cacheDirectory: mczCache. > UIManager inform: 'Package cache set to', mczCache fullName > > If you solely work with the setup and following our path logic you can even give this as > a relative path in the startup script: > > mczCache := FileSystem workingDirectory parent parent / 'package-cache' > > Details on further startup customization can be found on > https://marianopeck.wordpress.com/2012/05/12/startuploader-running-startup-… > >

March 23, 2016