April 2014 - Pharo-users - lists.pharo.org

Re: [Pharo-users] glorp

by stepharo

Keep us up to date with your efforts. We were brainstorming with esteban to see what model we could set up to offer working and up to date database drivers to the community while making sure that esteban get a salary :). Stef On 24/4/14 17:15, Pablo R. Digonzelli wrote: > Thanks all !. > I am planning to invest sometime with glorp. > I will comment and sure i will be asking to the list > > > > > > 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 > > ----- Mensaje original ----- > De: "Esteban A. Maringolo" <emaringolo(a)gmail.com> > Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> > Enviados: Jueves, 24 de Abril 2014 10:03:02 > Asunto: Re: [Pharo-users] glorp > > Pablo, > > I'm using GLORP in a production system with Pharo 2, and I managed to > load it into Pharo 3 (I had to rename a few classes prior to that), > and I'm developing a new system on top of it. > > But I'm using PostgreSQL with its native driver (PostgresV2), I don't > know about DBXTalk drivers (nor want to know either). > > Defining ORM mappings with GLORP is painful, consider yourself adviced > (there is no alternative, though). > > If by active you mean actively updating it from the main trunk in VW, > it isn't active. And the current port is a bit outdated. > > However the ORM realm is pretty old, so the current port includes most > of the necessary functionality. And work pretty much fine. > > > Regards! > Esteban A. Maringolo > > > 2014-04-24 5:29 GMT-03:00 Esteban Lorenzano <estebanlm(a)gmail.com>: >> Hi, >> >> AFAIK, dbxtalk glorp is loading (and working) correctly in pharo3, at least >> for postgresql (I didnât try the rest of the drivers) >> >> Esteban >> >> >> On 24 Apr 2014, at 06:02, ClÃ©ment Bera <bera.clement(a)gmail.com> wrote: >> >> Hello, >> >> I think Glorp is used with DBXTalk for relational databases by multiple >> people. >> >> Usually, with Pharo, people use as a persistance layer either MongoDB with >> the frameworks MongoTalk/Voyage. >> >> Gemstone is also used quite often for large scale application but Gemstone >> is not free. >> >> Regards. >> >> >> 2014-04-23 20:34 GMT-07:00 Pablo R. Digonzelli <pdigonzelli(a)gmail.com>: >>> Hi all, can someone tell me if glorp is active there ar is using glorp or >>> other persistence framework in production projects? >>> >>> 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 >>> >> > > >

April 24, 2014

Re: [Pharo-users] glorp

by Pablo R. Digonzelli

Thanks all !. I am planning to invest sometime with glorp. I will comment and sure i will be asking to the list 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 ----- Mensaje original ----- De: "Esteban A. Maringolo" <emaringolo(a)gmail.com> Para: "Any question about pharo is welcome" <pharo-users(a)lists.pharo.org> Enviados: Jueves, 24 de Abril 2014 10:03:02 Asunto: Re: [Pharo-users] glorp Pablo, I'm using GLORP in a production system with Pharo 2, and I managed to load it into Pharo 3 (I had to rename a few classes prior to that), and I'm developing a new system on top of it. But I'm using PostgreSQL with its native driver (PostgresV2), I don't know about DBXTalk drivers (nor want to know either). Defining ORM mappings with GLORP is painful, consider yourself adviced (there is no alternative, though). If by active you mean actively updating it from the main trunk in VW, it isn't active. And the current port is a bit outdated. However the ORM realm is pretty old, so the current port includes most of the necessary functionality. And work pretty much fine. Regards! Esteban A. Maringolo 2014-04-24 5:29 GMT-03:00 Esteban Lorenzano <estebanlm(a)gmail.com>: > Hi, > > AFAIK, dbxtalk glorp is loading (and working) correctly in pharo3, at least > for postgresql (I didnât try the rest of the drivers) > > Esteban > > > On 24 Apr 2014, at 06:02, ClÃ©ment Bera <bera.clement(a)gmail.com> wrote: > > Hello, > > I think Glorp is used with DBXTalk for relational databases by multiple > people. > > Usually, with Pharo, people use as a persistance layer either MongoDB with > the frameworks MongoTalk/Voyage. > > Gemstone is also used quite often for large scale application but Gemstone > is not free. > > Regards. > > > 2014-04-23 20:34 GMT-07:00 Pablo R. Digonzelli <pdigonzelli(a)gmail.com>: >> >> Hi all, can someone tell me if glorp is active there ar is using glorp or >> other persistence framework in production projects? >> >> 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 >> > >

April 24, 2014

Re: [Pharo-users] Probabilities package for Pharo?

by Sebastian Tleye

Thanks Henrik, I'll take it into account. 2014-04-24 12:58 GMT+02:00 Henrik Johansen <henrik.s.johansen(a)veloxit.no>: > > On 24 Apr 2014, at 11:25 , Sebastian Tleye <stleye(a)gmail.com> wrote: > > Thanks Markus, I didn't try it but I will! > > > 2014-04-24 11:20 GMT+02:00 Markus Fritsche <mfritsche(a)reauktion.de>: > >> On 2014-04-24 11:10, Sebastian Tleye wrote: >> >> Hi, >>> >>> I am doing some experiments in Pharo and I need to model Normal and >>> Log-Normal distributions in pharo. >>> Is there any existing package for that? >>> >> >> Hello Sebastion, >> >> have you tried the "NumericalMethods" Package in the Configuration >> browser? It loads a package "DHB", which includes the class >> DhbNormalDistribution. >> >> >> Best regards, >> Markus >> >> > If the package is anything like the one in VisualWorks (In other words, > LogNormalDistribution a subclass of > ProbabilityDensityWithUnknownDistribution), you probably want to implement > LogNormalDistribution >> distributionValue: aNumber > "Answers the probability of observing a random variable distributed > according to > the receiver with a value lower than or equal to aNumber." > ^aNumber > 0 > ifFalse: [0] > ifTrue: [normalDistribution distributionValue: aNumber ln] > > rather than rely on the supers implementation, if you plan on using it. > > Cheers, > Henry >

April 24, 2014

Re: [Pharo-users] We need *you* for the upcoming Pharo's website

by Esteban A. Maringolo

Kilon: As a general rule of thumb I'd prefer videos in smaller chunks or coordinated by a slideshow. Longer videos are always queued in the "watch later" playlist, which in my case have almost 10 hours of things to watch :D And if you feel willing to do more videos, do them! I don't like "screencasts by committee" (nor anything by committee), so the more the better, most of the times you can't measure beforehand the usefulness of these kind of things. Regards! Esteban A. Maringolo 2014-04-24 8:20 GMT-03:00 kilon alios <kilon.alios(a)gmail.com>: > Thank Esteban, when even a few people appreciate my effort it motivates me > to keep trying. > > My goal indeed was to introduce Pharo without going into depth to people > that are not experienced coders or not coders at all. I am now considering > doing a screencast explaining the basics of Pharo language with introduction > to IDE as well. Basic stuff, like how the language works, Object > orientation, Browser , Deubuger, Inspector etc. > > If I see interest I will do it, if not, so be it. > > I can even see myself do screencasts about, Morphic, Spec, Roassal, Athens, > Nativeboost and much more. But again it depends on how useful people find my > screencasts cause this experience is very new to me and I know I am no pro > on this department. > > > On Thu, Apr 24, 2014 at 11:40 AM, Esteban Lorenzano <estebanlm(a)gmail.com> > wrote: >> >> Hi, >> >> I really like it as an introduction of what pharo can do :) >> >> thanks! >> Esteban >> >> On 23 Apr 2014, at 21:32, kilon alios <kilon.alios(a)gmail.com> wrote: >> >> Well I tried, several times , but I am not happy with the end result. In >> any case I am finished with this and since I promised to upload it here it >> is >> >> >> https://www.youtube.com/watch?v=Ol5ivaEATLQ >> >> Sorry I cannot deliver something of better quality but thats the best I >> can do. If you don't like it, I wont blame you :D >> >> >> >> On Tue, Apr 22, 2014 at 3:14 PM, Damien Cassou <damien.cassou(a)gmail.com> >> wrote: >>> >>> On Mon, Apr 21, 2014 at 10:40 PM, kilon alios <kilon.alios(a)gmail.com> >>> wrote: >>> > I am still on vacations and the internet is very slow here. I will be >>> > able to upload something by the end of this weekend. My idea is to >>> > illustrate 6 points in 6-10 minutes that to my opinion make Pharo a >>> > very useful and fun choice. >>> >>> >>> please do. Even if you are late, we will evaluate your screencast and >>> maybe replace one that is already there. Or put it in a dedicated >>> section somewhere else. We desperately need good screencasts. >>> >>> Thanks for the offer >>> >>> -- >>> Damien Cassou >>> http://damiencassou.seasidehosting.st >>> >>> "Success is the ability to go from one failure to another without >>> losing enthusiasm." >>> Winston Churchill >>> >> >> >

April 24, 2014

Re: [Pharo-users] glorp

by Esteban A. Maringolo

Pablo, I'm using GLORP in a production system with Pharo 2, and I managed to load it into Pharo 3 (I had to rename a few classes prior to that), and I'm developing a new system on top of it. But I'm using PostgreSQL with its native driver (PostgresV2), I don't know about DBXTalk drivers (nor want to know either). Defining ORM mappings with GLORP is painful, consider yourself adviced (there is no alternative, though). If by active you mean actively updating it from the main trunk in VW, it isn't active. And the current port is a bit outdated. However the ORM realm is pretty old, so the current port includes most of the necessary functionality. And work pretty much fine. Regards! Esteban A. Maringolo 2014-04-24 5:29 GMT-03:00 Esteban Lorenzano <estebanlm(a)gmail.com>: > Hi, > > AFAIK, dbxtalk glorp is loading (and working) correctly in pharo3, at least > for postgresql (I didnât try the rest of the drivers) > > Esteban > > > On 24 Apr 2014, at 06:02, ClÃ©ment Bera <bera.clement(a)gmail.com> wrote: > > Hello, > > I think Glorp is used with DBXTalk for relational databases by multiple > people. > > Usually, with Pharo, people use as a persistance layer either MongoDB with > the frameworks MongoTalk/Voyage. > > Gemstone is also used quite often for large scale application but Gemstone > is not free. > > Regards. > > > 2014-04-23 20:34 GMT-07:00 Pablo R. Digonzelli <pdigonzelli(a)gmail.com>: >> >> Hi all, can someone tell me if glorp is active there ar is using glorp or >> other persistence framework in production projects? >> >> 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 >> > >

April 24, 2014

Re: [Pharo-users] [ANN] BabyMock 2

by Attila Magyar

This looks like a slightly different problem to me, where something has a hardcoded, hidden dependency (a global class object), which is not substitutable by design, but we want to replace it from the test to something that answers the canned value. I understand the practical arguments that probably nobody will ever want to replace the clock to an other one in production. But making the replaceable clock dependency is not the only option (though, making explicit that something is time dependent can be useful sometimes). Many times it is possible to get rid of the clock entirely at the current level and introduce a higher level abstraction that can respond to messages like, #isTrialPeriodExpired, #hasDayChangedFrom, #shouldCacheBeInvalidated depending on the domain. And this object can be mocked easily in test of its collaborator. Of course sometimes this is not possible or doesn't worth the effort. jb rainsberger had an interesting post about this http://blog.thecodewhisperer.com/2013/11/23/beyond-mock-objects/ Sean P. DeNigris wrote > For sure, there are times when this could be abused. But the spirit of > Smalltalk is to trust the programmer with the full power of the computer > at every level (e.g. private methods are only a suggestion). This is a valid argument, but my point of view is different. I think the purpose of doing TDD is lost because of those shortcuts. It is easy to fall back to testing mode, and focus on the problem, how do I test something, instead of design something which is testable and therefore changeable without those shortcuts. -- View this message in context: http://forum.world.st/ANN-BabyMock-2-tp4748530p4756230.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 24, 2014

Re: [Pharo-users] We need *you* for the upcoming Pharo's website

by Sean P. DeNigris

NorbertHartl wrote > I wouldnât expect it to be very few. Not repsonding is not equal to not > appreciating! Even if it feels like nobody cares this is nearly never the > case! +1. Very nice screencast. I was at work and couldn't watch until today. ----- Cheers, Sean -- View this message in context: http://forum.world.st/We-need-you-for-the-upcoming-Pharo-s-website-tp475473… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 24, 2014

Re: [Pharo-users] [ANN] BabyMock 2

by Sean P. DeNigris

Attila Magyar wrote > I made up an example because it makes easier to talk about this An easy example which comes up for me a lot is when I want to pretend it's a certain DateAndTime. I'd like DateAndTime now to return a canned value. I know all the theoretical arguments about how if I change my domain object to really get the date from an atomic clock server, or a serial port light sensor connected to a sun dial, my test will fail because I've tied it to a duplicated implementation detail. However, I'm willing to accept that risk because: - in 5 years, I've only ever queried the current timestamp via "DateAndTime now" - the duplication can be controlled via abstraction e.g. MyTestCase>>#now: aDateAndTime - writing (pseudo-code) "DateAndTime can receive:#now; answers: aDateAndTime": - is extremely easy - precludes me from muddying my domain class with a lot of test-only hooks, like #clock: and #clock or #clockClass: and #clockClass (multiplied by all such vectors) For sure, there are times when this could be abused. But the spirit of Smalltalk is to trust the programmer with the full power of the computer at every level (e.g. private methods are only a suggestion). ----- Cheers, Sean -- View this message in context: http://forum.world.st/ANN-BabyMock-2-tp4748530p4756202.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 24, 2014

Re: [Pharo-users] We need *you* for the upcoming Pharo's website

by Norbert Hartl

Am 24.04.2014 um 13:20 schrieb kilon alios <kilon.alios(a)gmail.com>: > Thank Esteban, when even a few people appreciate my effort it motivates me to keep trying. I wouldnât expect it to be very few. Not repsonding is not equal to not appreciating! Even if it feels like nobody cares this is nearly never the case! Norbert

April 24, 2014

Re: [Pharo-users] We need *you* for the upcoming Pharo's website

by kilon alios

Thank Esteban, when even a few people appreciate my effort it motivates me to keep trying. My goal indeed was to introduce Pharo without going into depth to people that are not experienced coders or not coders at all. I am now considering doing a screencast explaining the basics of Pharo language with introduction to IDE as well. Basic stuff, like how the language works, Object orientation, Browser , Deubuger, Inspector etc. If I see interest I will do it, if not, so be it. I can even see myself do screencasts about, Morphic, Spec, Roassal, Athens, Nativeboost and much more. But again it depends on how useful people find my screencasts cause this experience is very new to me and I know I am no pro on this department. On Thu, Apr 24, 2014 at 11:40 AM, Esteban Lorenzano <estebanlm(a)gmail.com>wrote: > Hi, > > I really like it as an introduction of what pharo can do :) > > thanks! > Esteban > > On 23 Apr 2014, at 21:32, kilon alios <kilon.alios(a)gmail.com> wrote: > > Well I tried, several times , but I am not happy with the end result. In > any case I am finished with this and since I promised to upload it here it > is > > > https://www.youtube.com/watch?v=Ol5ivaEATLQ<https://www.youtube.com/watch?v=Ol5ivaEATLQ&feature=youtu.be> > > Sorry I cannot deliver something of better quality but thats the best I > can do. If you don't like it, I wont blame you :D > > > > On Tue, Apr 22, 2014 at 3:14 PM, Damien Cassou <damien.cassou(a)gmail.com>wrote: > >> On Mon, Apr 21, 2014 at 10:40 PM, kilon alios <kilon.alios(a)gmail.com> >> wrote: >> > I am still on vacations and the internet is very slow here. I will be >> > able to upload something by the end of this weekend. My idea is to >> > illustrate 6 points in 6-10 minutes that to my opinion make Pharo a >> > very useful and fun choice. >> >> >> please do. Even if you are late, we will evaluate your screencast and >> maybe replace one that is already there. Or put it in a dedicated >> section somewhere else. We desperately need good screencasts. >> >> Thanks for the offer >> >> -- >> Damien Cassou >> http://damiencassou.seasidehosting.st >> >> "Success is the ability to go from one failure to another without >> losing enthusiasm." >> Winston Churchill >> >> > >

April 24, 2014