- Pharo-users - lists.pharo.org

Re: [Pharo-users] Solver for the Stable Marriage problem in Pharo

by Guillermo Polito

Nice! But late :P I was looking for something like this to organize secret santa a couple of weeks ago. I'll star it though :) Tx! On Wed, Jan 3, 2018 at 12:23 AM, Sean P. DeNigris <sean(a)clipperadams.com> wrote: > Julien wrote > > Continuing to announce what I have. > > Hooray!! > > > > ----- > Cheers, > Sean > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > -- Guille Polito Research Engineer Centre de Recherche en Informatique, Signal et Automatique de Lille CRIStAL - UMR 9189 French National Center for Scientific Research - *http://www.cnrs.fr <http://www.cnrs.fr>* *Web:* *http://guillep.github.io* <http://guillep.github.io> *Phone: *+33 06 52 70 66 13

Jan. 4, 2018

Re: [Pharo-users] Metacello with Git

by Stephane Ducasse

>> >> About pillar, we are working on a new pipeline and lot of cleaning >> compared to the version available on smalltalkhub. >> The new version Branch new pipeline seems broken (I will check it >> tomorrow it cannot handle internal references). >> I want to be able to build the old books with the new version. Now it >> is not working. >> >> Stef > > Yep, I remember you also mentioning that you're planning to decouple > the core Pillar from Magritte and Grease. All of this will make our > lives easier. There were some real glitches in the newpipeline and now I'm ready to produce a booklet. Now I will check and fix some more... And yes I want to remove the dependencies to Magritte and Grease and get a modular core. But first I want to arrive to a stable point and migrate all the books and booklets to Pillar 70. Then I will work on a new version of Cocoon and integrate it to pillar and remove magritte. Some I imagine that it may take me 6 months (because I'm doing far too many things). Stef

Jan. 3, 2018

Re: [Pharo-users] How to justify text in pillar booklets ?

by Stephane Ducasse

Hi steven If I understand what you mean, you cannot from Pillar. Pillar is agnotisc from a layout point of view. You can edit the sbabook cls. We reply on a designer for the book and just use it without touching it. We follow the design of damien. Stef On Wed, Jan 3, 2018 at 1:29 PM, Steven Costiou <steven.costiou(a)kloum.io> wrote: > Hi, > > i am using the pillar booklet tools from > https://github.com/SquareBracketAssociates/Booklet-PublishingAPillarBooklet > > > > How can i justify all paragraphs in the generated spiral book, instead of > having all of it aligned to left ? > > Steven.

Jan. 3, 2018

Re: [Pharo-users] Object Persistence

by Stephane Ducasse

Thanks manuel. On Wed, Jan 3, 2018 at 2:14 PM, Manuel Leuenberger <leuenberger(a)inf.unibe.ch> wrote: > Hi Stef, > > The Neo4j Cypher queries express a subgraph/path that you want to match in > the big graph (nodes and edges with attributes). No fragmentation due to > normalization etc., so no joins, itâs more like a regex matcher: > > MATCH p=(x:PERSON)-[:KNOWS*]->(:PERSON) > WHERE x.name = 'John' > RETURN p; > > Will give you the graph of all persons John knows and all the persons they > know (transitive closure). You can also combine multiple queries that one > processes the result of the other (pipes and filters). See > https://neo4j.com/developer/cypher-query-language/ > > OutOfMemory only happens if your query selects more data (at any point) than > you have memory, as the query execution happens entirely in memory, there > seems to be no flush do disk. But there are ways to work around this (albeit > resulting in uglier partitioned queries). > > You can see it in action for my KOWALSKI tool, collecting API clients and > extracting call graphs: https://youtu.be/zdx28GnoSRQ > > Cheers, > Manuel > > On 31 Dec 2017, at 11:19, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > > Hi manuel > > what kind of queries can we express? > Can be get select node? > Now out of memory is a read falg for me (for moose because we do that > all the time). > > Stef > > > On Tue, Dec 26, 2017 at 10:03 PM, Manuel Leuenberger > <leuenberger(a)inf.unibe.ch> wrote: > > Iâve always liked Neo4j to persist object graphs. Also has a nice query > language. The database is not fool-proof (isolation issues, out of memory on > expensive queries), but works fine for analytics. > > On 25 Dec 2017, at 10:43, Ian Ian <icjohnsoia(a)gmail.com> wrote: > > Hi All, > > Thoughts of a purely OO nature? > > :) > > > > >

Jan. 3, 2018

Re: [Pharo-users] Formatted print for Duration

by Andreas Brodbeck

Am 03.01.18 um 14:07 schrieb Julien: > Hello, > > I do not see how to do a formatted print from a duration. > > I would like to be able to do something like: > > String streamContents: [ :s | 90 minutes formatted: âhh:mmâ printOn: s ] > > The Duration>>#printOn: method prints the ANSI 5.8.2.16 format: [-]D:HH:MM:SS[.S] > > The Duration>>#printHumanReadableOn: is not printing in the format I want. > > Am I missing something or such feature does not exist actually? Hi Julien I did not find a ready made method for that, either. Probably because there is no standard way to print a *Duration* as minutes and seconds, because it is not obvious how to print it (Compared to instances of the *Time* class). My solution would be to implement your own printing method using the GRPrinter from the Grease package (Installable through Catalog Browser in Pharo 6): ***************************** | hoursPrinter minutesPrinter printer | "Note: you can not use 'duration minutes', since this will give you only the partial minutes inside a day" hoursPrinter := GRMappedPrinter block: [ :duration | duration asMinutes // 60 ] next: (GRNumberPrinter new). minutesPrinter := GRMappedPrinter block: [ :duration | duration minutes ] next: (GRPrinter numberWithAtLeastDigits: 2). printer := hoursPrinter, $:, minutesPrinter. ^printer print: (9876 minutes) "Will result in '164:36'" ***************************** 2. solution: Or just dead simple: ***************************** | duration | duration := (9876 minutes). ^(duration asMinutes // 60) asString, ':', duration minutes asTwoCharacterString ***************************** Cheers, Andreas -- Andreas Brodbeck www.mindclue.ch

Jan. 3, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Esteban Lorenzano

I think if you use old compiler it will work: SmalltalkImage compilerClass: Compiler. Esteban > On 3 Jan 2018, at 17:42, Andrei Stebakov <lispercat(a)gmail.com> wrote: > > I tried before to install odbc. > Gofer new > squeaksource: 'ODBC'; > package: 'ConfigurationOfODBC'; load. > (Smalltalk at: #ConfigurationOfODBC) load. > > When I execute the code above I got an exception doesNotUnderstand: #selector in RBParser>>externalFunctionDeclaration. Looks like currentScope variable is not defined. > Also if I install ODBC from the catalog it also fails. > I still don't see how postgres can help but I'll give it another try. > > On Jan 3, 2018 11:05, "Pierce Ng" <pierce(a)samadhiweb.com <mailto:pierce@samadhiweb.com>> wrote: > On Wed, Jan 03, 2018 at 10:12:32AM -0500, Andrei Stebakov wrote: > > Pierce, I couldn't find any smalltalk framework to work with DB2 at this > > point. I couldn't also find any Pharo odbc library. That's why at this > > point I am looking for any ideas how to connect to DB2 from Pharo. > > I suppose Instantiations VA Smalltalk will be able to talk to DB2. I'm quite > sure Dolphin Smalltalk does ODBC too. > > Staying with Pharo, assuming you have known-working DB2 ODBC driver for Windows > installed and ODBC to DB2 configured, try this: > > http://smalltalkhub.com/#!/~PharoExtras/ODBC/ <http://smalltalkhub.com/#!/~PharoExtras/ODBC/> > > Most recent commit was in Apr 2015 by Torsten 'switching to newer FFI'. So > hopefully this works with Pharo 6.1. > > If the above doesn't work, but you know that the Windows DB2 ODBC driver works, > then - I'm not being facetious - install PostgreSQL, set up PostgreSQL foreign > data wrapper to ODBC, and talk to PostgreSQL using Pharo. > > http://www.postgresonline.com/journal/archives/372-ODBC-FDW-now-supports-9.… <http://www.postgresonline.com/journal/archives/372-ODBC-FDW-now-supports-9.…> > > Or, set up Python's SQL Alchemy for DB2, install PostgreSQL, set up PostgreSQL > foreign data wrapper to SQL Alchemy, and talk to PostgreSQL using Pharo. > > https://wiki.postgresql.org/wiki/Foreign_data_wrappers <https://wiki.postgresql.org/wiki/Foreign_data_wrappers> > https://github.com/Kozea/Multicorn <https://github.com/Kozea/Multicorn> > > HTH. > >

Jan. 3, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Andrei Stebakov

I tried before to install odbc. Gofer new squeaksource: 'ODBC'; package: 'ConfigurationOfODBC'; load. (Smalltalk at: #ConfigurationOfODBC) load. When I execute the code above I got an exception doesNotUnderstand: #selector in RBParser>>externalFunctionDeclaration. Looks like currentScope variable is not defined. Also if I install ODBC from the catalog it also fails. I still don't see how postgres can help but I'll give it another try. On Jan 3, 2018 11:05, "Pierce Ng" <pierce(a)samadhiweb.com> wrote: > On Wed, Jan 03, 2018 at 10:12:32AM -0500, Andrei Stebakov wrote: > > Pierce, I couldn't find any smalltalk framework to work with DB2 at this > > point. I couldn't also find any Pharo odbc library. That's why at this > > point I am looking for any ideas how to connect to DB2 from Pharo. > > I suppose Instantiations VA Smalltalk will be able to talk to DB2. I'm > quite > sure Dolphin Smalltalk does ODBC too. > > Staying with Pharo, assuming you have known-working DB2 ODBC driver for > Windows > installed and ODBC to DB2 configured, try this: > > http://smalltalkhub.com/#!/~PharoExtras/ODBC/ > > Most recent commit was in Apr 2015 by Torsten 'switching to newer FFI'. So > hopefully this works with Pharo 6.1. > > If the above doesn't work, but you know that the Windows DB2 ODBC driver > works, > then - I'm not being facetious - install PostgreSQL, set up PostgreSQL > foreign > data wrapper to ODBC, and talk to PostgreSQL using Pharo. > > http://www.postgresonline.com/journal/archives/372-ODBC-FDW- > now-supports-9.5-and-9.6.html > > Or, set up Python's SQL Alchemy for DB2, install PostgreSQL, set up > PostgreSQL > foreign data wrapper to SQL Alchemy, and talk to PostgreSQL using Pharo. > > https://wiki.postgresql.org/wiki/Foreign_data_wrappers > https://github.com/Kozea/Multicorn > > HTH. > > >

Jan. 3, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Pierce Ng

On Wed, Jan 03, 2018 at 10:12:32AM -0500, Andrei Stebakov wrote: > Pierce, I couldn't find any smalltalk framework to work with DB2 at this > point. I couldn't also find any Pharo odbc library. That's why at this > point I am looking for any ideas how to connect to DB2 from Pharo. I suppose Instantiations VA Smalltalk will be able to talk to DB2. I'm quite sure Dolphin Smalltalk does ODBC too. Staying with Pharo, assuming you have known-working DB2 ODBC driver for Windows installed and ODBC to DB2 configured, try this: http://smalltalkhub.com/#!/~PharoExtras/ODBC/ Most recent commit was in Apr 2015 by Torsten 'switching to newer FFI'. So hopefully this works with Pharo 6.1. If the above doesn't work, but you know that the Windows DB2 ODBC driver works, then - I'm not being facetious - install PostgreSQL, set up PostgreSQL foreign data wrapper to ODBC, and talk to PostgreSQL using Pharo. http://www.postgresonline.com/journal/archives/372-ODBC-FDW-now-supports-9.… Or, set up Python's SQL Alchemy for DB2, install PostgreSQL, set up PostgreSQL foreign data wrapper to SQL Alchemy, and talk to PostgreSQL using Pharo. https://wiki.postgresql.org/wiki/Foreign_data_wrappers https://github.com/Kozea/Multicorn HTH.

Jan. 3, 2018

Re: [Pharo-users] Examples of Garage for DB2

by Andrei Stebakov

Pierce, I couldn't find any smalltalk framework to work with DB2 at this point. I couldn't also find any Pharo odbc library. That's why at this point I am looking for any ideas how to connect to DB2 from Pharo. On Jan 3, 2018 09:52, "Pierce Ng" <pierce(a)samadhiweb.com> wrote: > On Tue, Jan 02, 2018 at 02:10:03PM -0500, Andrei Stebakov wrote: > > I downloaded Garage to my Pharo 6.1 on windows. But in Garage I only see > > drivers for MySql, Postgres and Sqlite3. > > Does it mean that for DB2 I should look somewhere else or there is a way > to > > create a connection for DB2 using existing Garage functionality? > > Garage uses the OpenDBX C language database access library underneath. > Looking > at https://linuxnetworks.de/doc/index.php?title=OpenDBX/Support, it > doesn't > look OpenDBX supports DB2. > > Does the Windows DB2 ODBC driver work? Does Pharo successfully use the ODBC > driver to talk to DB2? > > Pierce > >

Jan. 3, 2018

Re: [Pharo-users] Metacello with Git

by Alistair Grant

Hi Stef, On 2 January 2018 at 20:11, Stephane Ducasse <stepharo.self(a)gmail.com> wrote: > Hi Alistair > > About pillar, we are working on a new pipeline and lot of cleaning > compared to the version available on smalltalkhub. > The new version Branch new pipeline seems broken (I will check it > tomorrow it cannot handle internal references). > I want to be able to build the old books with the new version. Now it > is not working. > > Stef Yep, I remember you also mentioning that you're planning to decouple the core Pillar from Magritte and Grease. All of this will make our lives easier. Thanks, Alistair > On Tue, Jan 2, 2018 at 6:08 PM, Alistair Grant <akgrant0710(a)gmail.com> wrote: >> Hi Sean, >> >> On 2 January 2018 at 18:00, Sean P. DeNigris <sean(a)clipperadams.com> wrote: >>> EstebanLM wrote >>>> if you have iceberg metacello integration enabledâ¦ Then it works on >>>> baselines, etc. >>> >>> Strange. I did `Iceberg enableMetacelloIntegration: true.` first and still >>> got the error. I can't easily test in 7 because it depends on Magritte which >>> depends on Grease which doesn't seem to load yet. Maybe I can cobble >>> together a simpler test case. >> >> This may not help, but... >> >> Pharo 7.0 >> Build information: >> Pharo-7.0+alpha.build.398.sha.52a28a857deec25612d302aba8ab09bdd6212b31 >> (32 Bit) >> >> I have Pillar loaded, which in turn loads: >> >> ConfigurationOfMagritte3-topa.126 >> Magritte-Model-SeanDeNigris.465 >> Magritte-Morph-SeanDeNigris.95 >> Magritte-Pharo3-Model-JohnCBorden.4 >> ConfigurationOfGrease-StephanEggermont.348 >> Grease-Core-JohanBrichau.97 >> Grease-Pharo30-Core-PavelKrivanek.22 >> >> The image was built about 4 days ago. >> >> HTH, >> Alistair >> >> >> >>> The Git error I mentioned in my OP was caused because `LGitRepository >> >>> clone:options:to:` is trying to clone >>> 'git@bitbucket.org:nDeNigris/Quote-Me.git' based on >>> `gitlab://SeanDeNigris/Quote-Me:master/repository` from the baseline spec. >>> Earlier in the stack, `IceProviderRepositoryType >> mcRepository` is using >>> `MCBitbucketRepository` which is hardcoded. >>> >>> All of the above is with iceberg metacello integration enabled. >>> >>> >>> >>> ----- >>> Cheers, >>> Sean >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> >> >

Jan. 3, 2018