September 2014 - Pharo-users

if Pharo is key for you
by StÃ©phane Ducasse Jan. 18, 2015

Jan. 18, 2015

Hi guys if Pharo is key for you then you should ask yourself what you did for Pharo recently. Writing code, writing documentation helping closing bug entries, participating to the association, to the consortium... Pharo is not happening from spontaneous generation. Stef

4 6

[ANN] Spec documentation in PFTE book finished
by Johan Fabry Jan. 2, 2015

Jan. 2, 2015

Hi all, I am happy to announce that Ben and I finished the documentation of Spec for the Pharo For The Enterprise book. This documentation is up-to-date with the latest version of Spec, and is focused towards people wanting to use it and even extend it (in contrast to the academic papers which are â¦ academic ;-) ). I hope that this text will help all the people that are building UIs in Pharo, and it will clear up any doubts that they may have. The chapter is available in source form from the GitHub project of the PFTE book: https://github.com/SquareBracketAssociates/PharoForTheEnterprise-english The easiest way to read the chapter is from the continuous integration server, which produces a html file of the chapter here: https://ci.inria.fr/pharo-contribution/job/PharoForTheEnterprise/lastSucces… (The same server also produces pdf and markdown files, but there are some strange artifacts there, currently. I guess this will be cleared up in the future) We tried our best to make it understandable and complete, but if you have any doubts or comments please do not hesitate to let us know !! Ben prefers Github apparently, but if you are oldskool like me you can also send a mail (privately or to the mailing list). Now it's time to build some cool user interfaces! :-) ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

10 18

Zoomable & Infinitely scrollable PasteupMorph
by Sean P. DeNigris Nov. 3, 2014

Nov. 3, 2014

I need to create such a beast. What is my best bet to build on top of? I see the GT playground seems to have something like this for the Roassal previews... ----- Cheers, Sean -- View this message in context: http://forum.world.st/Zoomable-Infinitely-scrollable-PasteupMorph-tp4778229… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

10 25

FFI on Linux again
by Annick Fron Oct. 17, 2014

Oct. 17, 2014

Hi, I Have tried the following code on Linux , but the call breaks. Is it because of the X11Window structure missing or else ? Annick ==== testGetOurWindowLocation "self new testGetOurWindowLocation" | display ourWindow aParent anX anY aWidth aHeight aBorderWidth aDepth | display := X11Display XOpenDisplay: nil. ourWindow := display ourWindow. (Alien lookup: 'XGetGeometry' inLibrary: 'X11') primFFICallResult: nil withArguments: {display. ourWindow. (aParent := Alien new: 4). (anX := Alien new: 4). (anY := Alien new: 4). (aWidth := Alien new: 4). (aHeight := Alien new: 4). (aBorderWidth := Alien new: 4). (aDepth := Alien new: 4)}. (anX unsignedLongAt: 1) inspect

2 2

Glorp + NBSQLite3
by Pierce Ng Oct. 7, 2014

Oct. 7, 2014

Hello, I am pleased to report that I have gotten Glorp working with NBSQLite3 enough to run Sven's Reddit.st. As mentioned in my blog post, there is more work to be done to get Glorp fully integrated with NBSQLite3, but preliminary results are encouraging. http://www.samadhiweb.com/blog/2014.09.24.glorp.nbsqlite3.html Pierce

4 12

BLOG: Block Translators - parsing magic
by Udo Schneider Oct. 6, 2014

Oct. 6, 2014

All, I just finished a blog entry. It shows how to use Smalltalk blocks as parsers/translators. E.g. translating a Block [:customer | (customer joinDate year is: Date today year)] into an SQL-like String (YEAR(customers.joinDate) = 2014) The SQL stuff is just an example - you can create nearly any output. Check out http://readthesourceluke.blogspot.de/2014/09/block-translators-parsing-magi… Maybe that's old stuff for some of you - but I hope it's interesting for some at least :-) Comments and feedback appreciated. CU, Udo

11 40

Pharo Glorp 1.7 <-> VisualWorks
by FranÃ§ois Stephany Oct. 3, 2014

Oct. 3, 2014

We are tempted to give Glorp a try. We've loaded version 1.7 from the configuration browser and the simple things we've tested so far seem to work fine with the PostgresV2 driver. What is the relation between the glorp we have with the VW version? Are the two merged often? Unfortunately, we don't have the manpower to maintain such a beast, are there many people using glorp in production? With PostgresV2? Do you use all the niceties (e.g., json type) from PostgreSQL? Cheers, Francois

7 12

invoking python from pharo
by Pablo R. Digonzelli Oct. 3, 2014

Oct. 3, 2014

Hi all , I need to invoke python rutines from Pharo. I need some orientation about the best way to do it. TIA Ing. Pablo Digonzelli Software Solutions IP-Solutiones SRL Metrotec SRL 25 de Mayo 521 Email: pdigonzelli(a)softsargentina.com pdigonzelli(a)gmail.com Cel: 5493815982714

4 7

[ANN] JSON datatype support in PostgresV2 package
by Esteban A. Maringolo Oct. 3, 2014

Oct. 3, 2014

Spurred by the last discussion about GLORP, Postgres and friends, I spent the last few hours looking into the workings of PostgresV2 to add support to the native JSON datatype provided by PostgreSQL 9.2. According to PostgreSQL docs [1]: "The json data type can be used to store JSON (JavaScript Object Notation) data, as specified in RFC 4627. Such data can also be stored as text, but the json data type has the advantage of checking that each stored value is a valid JSON value. There are also related support functions available; see Section 9.15." It is available at ConfigurationOfPostgresV2-EstebanMaringolo.12 in SmalltalkHub, blessed as #development (v2.4). It includes a testcase for the field converter (if the database server supports it). JSON datatype allows the indexing and querying of data inside the structure of the json object. Eg: SELECT jsonField->'attribute1'->'attribute2' FROM sampleTable; Adding support of this to GLORP should be easy, but I have no time now :) DISCLAIMER: I'm not using this in production, I tested it and seems to work as expected, and fail nosiliy when it should. This is why I blesed it as #development. If anybody is bold enough, bless it as #stable :) Best regards, Esteban A. Maringolo [1] http://www.postgresql.org/docs/9.2/static/datatype-json.html

6 10

Versioneer. nice. mmMmmm...
by Ben Coman Oct. 3, 2014

Oct. 3, 2014

While I had done the Versioneer tutorial some time ago, I had some inertial problem using it in anger. Now I'm happy to report using it just now to update the ConfigurationOfPharoLauncher was simple and smooth - which is great since I've never done a Configuration by hand. I thought it would be useful for others to see how simple it was... 1. Loaded latest ConfigurationOfPharoLauncher. 2. Loaded and tested newer PharoLauncher packages. 3. Opened World > Tools > Versioneer. 4. Selected PharoLauncher and <Open Project>. 5. Selected "development" list item. 6. Clicked <Release Version> and <Ok> to accept auto increment of version number. 7. Clicked <Commit the project> Now there is an updated ConfigurationOfPharoLauncher in its Smalltalkhub repository. Easy with Versioneer. mmMmmmm. nice. shiny..... cheers -ben

3 7