- Pharo-users - lists.pharo.org

[ANN] Youtube video explaining how to set-up a Pharo project
by Julien Delplanque Jan. 20, 2020

Jan. 20, 2020

Hello, I recorded myself setting up a Pharo project on Github this afternoon. https://www.youtube.com/watch?v=Wnt3OBhR18I The video shows how to: - Create git repository on Github, make Pharo be aware of it via Iceberg - Set-up the CI - Add CI badge and install script to your README (which we should all do systematically... :-) ). This can be useful for newcomers. Cheers, Julien

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Re: [Pharo-users] Pharo connect to PostgreSQL
by Sven Van Caekenberghe Jan. 20, 2020

Jan. 20, 2020

Hi, You are not saying which library/framework you are trying to use. One up to date option is P3, the "lean and mean PostgreSQL client for Pharo " [ https://github.com/svenvc/P3 ]. A connection to your database could then be specified using a URL. To test the connection: (P3Client url: 'psql://postgres:lucian@localhost:5432/mydb') in: [ :client | [ client isWorking ] ensure: [ client close ] ]. To do a query: (P3Client url: 'psql://postgres:lucian@localhost:5432/mydb') in: [ :client | [ (client query: 'SELECT * FROM some_table') recordsAsDictionaries ] ensure: [ client close ] ]. Of course, you first have to make sure external clients can connect to your db (try the psql command line client over TCP first). HTH, Sven Apart from https://postgresql.org, the following site is pretty good: https://www.postgresqltutorial.com. On macOS, I recommend https://postgresapp.com. > On 20 Jan 2020, at 12:37, Macmus via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Macmus <luci.barcan(a)yahoo.com> > Subject: Pharo connect to PostgreSQL > Date: 20 January 2020 at 12:37:13 GMT+1 > To: pharo-users(a)lists.pharo.org > > > I am trying to connect to a PostgreSQL database from Pharo but I keep getting > "SubscriptOutOfBounds: 11" error (I am a beginner). The server is started > and the database is working fine. What am I missing? > > > |connectionArguments connection resultSets resultSet rows firstRow| > > connectionArguments := PG3ConnectionArguments new > hostname: 'localhost'; > port: 5432; > username: 'postgres'; > password: 'lucian'; > databaseName: 'mydb' > yourself. > connection := connectionArguments newConnection. > > connection startup. > > resultSets := connection execute: 'select 3 + 4, now()'. > resultSet := resultSets first. > rows := resultSet rows. > firstRow := rows first. > firstRow at: 1. > firstRow at: 2. > > connection terminate. > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > >

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Pharo connect to PostgreSQL
by Macmus Jan. 20, 2020

Jan. 20, 2020

I am trying to connect to a PostgreSQL database from Pharo but I keep getting "SubscriptOutOfBounds: 11" error (I am a beginner). The server is started and the database is working fine. What am I missing? |connectionArguments connection resultSets resultSet rows firstRow| connectionArguments := PG3ConnectionArguments new hostname: 'localhost'; port: 5432; username: 'postgres'; password: 'lucian'; databaseName: 'mydb' yourself. connection := connectionArguments newConnection. connection startup. resultSets := connection execute: 'select 3 + 4, now()'. resultSet := resultSets first. rows := resultSet rows. firstRow := rows first. firstRow at: 1. firstRow at: 2. connection terminate. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Pharo display bug
by Richard Kenneth Eng Jan. 19, 2020

Jan. 19, 2020

I don't know how to report Pharo bugs, so I'll just mention that the Pharo IDE isn't displaying code properly. For example: [image: image.png] Look at "map cellAt: ". The 'A' and 't" are mashed together. Another example: [image: image.png] Look at ":cellA:cellB | cellA energy ". It's not displaying the space between "cellA" and "energy". This is more than just a display bug because how the hell are you supposed to edit this code??? Richard

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Latest Pharo Update
by Richard Kenneth Eng Jan. 18, 2020

Jan. 18, 2020

The latest update to Pharo causes a "PrimitiveFailed: primitive #newProcess in ProcessWrapper class failed" message??? How did this happen?

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As promised, the sequel!
by Richard Kenneth Eng Jan. 17, 2020

Jan. 17, 2020

https://levelup.gitconnected.com/how-is-smalltalks-revival-like-the-e-car-s…

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Re: [Pharo-users] Pharo Quality Rules for Beginners
by Ben Coman Jan. 17, 2020

Jan. 17, 2020

On Wed, 15 Jan 2020 at 17:41, ESTEBAN VILLALOBOS DIAZ via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > Hello everyone! > > My name is Esteban and I will be working on the Pharo Quality Rules for the next few months. The goal is to create different profiles for the rules according to the programming experience of the user. For example, for the beginner profile we would like to check for common mistakes made by people who are just starting with Pharo like: > > Sending self as a message (probably because they forgot a . ) > Using False instead of false > etc.. > > I would appreciate it if you could share with me other common mistakes that you have seen beginners do, or maybe tell me a bit of your own experience when you started using Pharo :) - Getting confused between instance-side and class-side, mixing up which side methods are on. When getting a DNU maybe check if that message is known on the class-side. - leaving out the end of statement trailing dot. An error message like "Blah doesn't understand self" is a bit complex for a beginner to decipher. cheers -ben

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Smalltalk: Itâs Not Your Grandfatherâs Programming Language
by Richard Kenneth Eng Jan. 16, 2020

Jan. 16, 2020

https://levelup.gitconnected.com/smalltalk-its-not-your-grandfather-s-progr…

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Re: [Pharo-users] Pharo Quality Rules for Beginners
by pmissech Jan. 16, 2020

Jan. 16, 2020

Hello, First, good luck ! That seems quite interesting ! Few things i can think of: - message priority is often hard to understand, although I'm not sure how that could transform into a rule. - I didn't see this one that often, but since we loose arithmetic priority for message one, I'm pretty sure that could bother some. - miss use of the difference between 'SubclassResponsability' and 'self subclassResponsibility' (and other of this kind i guess, such as shouldNotImplement (I actually just found a very old one in my code :') ) Pierre On 15/01/2020 10:41, ESTEBAN VILLALOBOS DIAZ via Pharo-users wrote:

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Annonce Pharo-LibVLC
by Benoit Verhaeghe Jan. 16, 2020

Jan. 16, 2020

Hello there, I just want to let you know that I've developed an FFI binding to VLC. Since, version 2.1.1 you can use it on Windows, Linux, and OSX. https://github.com/badetitou/Pharo-LibVLC Thanks to the binding you can play easily sounds and videos from Pharo. The next steps are: * Documentation and examples (in the Image, GitHub, and a blog post/tutorial) * Full Travis testing * SDL support * A #Spec2 <https://twitter.com/hashtag/Spec2?src=hashtag_click>UI * A SeasideUI (https://github.com/pharo-media-center <https://t.co/Zzlb01Ncw8?amp=1>) Feel free to use the binding and tell me if you need help with it. BenoÃ®t Verhaeghe -- BenoÃ®t Verhaeghe badetitou.github.io benoit.verhaeghe(a)berger-levrault.com R&D Engineer at Berger-Levrault benoit.verhaeghe(a)inria.fr PHD student at Inria-Lille--Nord-Europe

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