March 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] MySQL framework for Pharo to analyze futures and options.

by Cameron Sanders

Of general educational nature are two Glorp guides that I know of: 1) Glorp / User Guide by Nevin Pratt, and 2) San Diego State University "Glorp Tutorial" by Roger Whitney. - Otherwise, there are members on this board who can direct your attention to test code to test your configuration. Good luck, Cam On Mon, Mar 30, 2015 at 10:14 AM, nacho <0800nacho(a)gmail.com> wrote: > Hi, > Thanks for all the input. > I've managed to download Glorp and the MySQL Glorp driver. > However I'm having serious difficulties in setting it to work. > I've search for some documentation in the Glorp page but seems there's a > problem with Google Drive. > Is there any place to search / look at an example on how to actually > connect, map and query a SQL database from Pharo? > Thanks in advance > Nacho! > > > > > ----- > Nacho > Smalltalker apprentice. > Buenos Aires, Argentina. > -- > View this message in context: > http://forum.world.st/MySQL-framework-for-Pharo-to-analyze-futures-and-opti… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Werner Kassens

Hi Johan, <g> you did surprise me! thanks for that info, i can use that indeed. werner On 03/30/2015 04:47 PM, Johan Fabry wrote: > Werner, let me surprise you: what I am doing is in the end exactly that! :-) ...

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Johan Fabry

> On Mar 30, 2015, at 11:01, Werner Kassens <wkassens(a)libello.com> wrote: > > i had a little program, that constructs an array of blocks (no object methods) via opal from scratch (using strings). now this worked of course without problems, but there are situations where it would be nice if those blocks would have - in a _simple_ way - access to common variables constructed by the program, iow if all those blocks would live in the same 'space' as those variables - or however thats called correctly. does this scenario apply as a possible use case (obviously completely different from Johan's use case) ? Werner, let me surprise you: what I am doing is in the end exactly that! :-) I am compiling blocks, written by the user of the system, that need references to variables that are outside the block, and they are shared between the different blocks. (The blocks have been written in a plain text textfield). So how do I have them access the variables? Here is the setup: - I generate a class (MyGeneratedClass) with as *class variables* all the variables that need to be accessed by the different blocks - For each block I generate a string with method source code (myGeneratedMethod_timestamp), whose body is: return the block - I compile the method and add it to MyGeneratedClass class (add it at class side) - I execute each method (MyGeneratedClass myGeneratedMethod_timestamp) , which gives me a BlockContext that has captured the variables. - sending value to that executes the block, and all blocks share the variables in MyGeneratedClass. Simple :-) And thanks to Marcus for discussing this with me a couple of years ago ... ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Thierry Goubier

A use case: the ability to test and debug the code generation part of SmaCC. SmaCC, when compiling a parser, generates dozens of classes and hundreds of methods, some of those very long, as a sequence of refactorings (and optimise them). Then SmaCC apply them all in one step. I'd dream of having a virtual environment where I could test-compile and check all those methods, via a system browser, before they are compiled. Thierry 2015-03-30 9:10 GMT+02:00 Marcus Denker <marcus.denker(a)inria.fr>: > > > On 29 Mar 2015, at 10:32, stepharo <stepharo(a)free.fr> wrote: > > > > Before that I would like that the compiler outputs classes definition in > an environment (that can be the default one) but that can be the one > > I want and specified from the outside of the compiler. > > For installing, it is the ClassInstaller that does that (and yes, it has > an environment). > > What the compiler does not have is to look up references e.g. to symbols > regarding to an environment, but that is because we > don't have that concept right now in the system in general. globals/class > vars are requested from the class (which defines its environment). > > So in general, we first need a use case, else it is not clear what to do... > > > Marcus >

March 30, 2015

Re: [Pharo-users] MySQL framework for Pharo to analyze futures and options.

by nacho

Hi, Thanks for all the input. I've managed to download Glorp and the MySQL Glorp driver. However I'm having serious difficulties in setting it to work. I've search for some documentation in the Glorp page but seems there's a problem with Google Drive. Is there any place to search / look at an example on how to actually connect, map and query a SQL database from Pharo? Thanks in advance Nacho! ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/MySQL-framework-for-Pharo-to-analyze-futures-and-opti… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Werner Kassens

On 03/30/2015 09:10 AM, Marcus Denker wrote: > What the compiler does not have is to look up references e.g. to symbols regarding to an environment, but that is because we > donât have that concept right now in the system in general. globals/class vars are requested from the class (which defines its environment). > > So in general, we first need a use case, else it is not clear what to doâ¦ Hi Marcus, i dont know whether this really applies to the things you are talking about here, but it sounds a bit like it eventually could, hence i'll mention it: i had a little program, that constructs an array of blocks (no object methods) via opal from scratch (using strings). now this worked of course without problems, but there are situations where it would be nice if those blocks would have - in a _simple_ way - access to common variables constructed by the program, iow if all those blocks would live in the same 'space' as those variables - or however thats called correctly. does this scenario apply as a possible use case (obviously completely different from Johan's use case) ? werner

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Johan Fabry

> On Mar 30, 2015, at 09:23, Christophe Demarey <Christophe.Demarey(a)inria.fr> wrote: > > > Le 30 mars 2015 Ã 09:10, Marcus Denker a Ã©crit : > >> >>> On 29 Mar 2015, at 10:32, stepharo <stepharo(a)free.fr> wrote: >>> >>> Before that I would like that the compiler outputs classes definition in an environment (that can be the default one) but that can be the one >>> I want and specified from the outside of the compiler. >> >> For installing, it is the ClassInstaller that does that (and yes, it has an environment). >> >> What the compiler does not have is to look up references e.g. to symbols regarding to an environment, but that is because we >> donât have that concept right now in the system in general. globals/class vars are requested from the class (which defines its environment). >> >> So in general, we first need a use case, else it is not clear what to doâ¦ > > A first use case could be to install new code in a sandbox, check if the loading is good, and then move the code to the default environment, else drop the sandbox. > It is also a part of the feature asked by Johan: install code in a sandbox for tests purposes and then drop it without perturbing the system. To be clear: I want to be able to generate code (classes and methods in these classes), and remove them when needed without it being logged in the changes file. This is because it may end up to be a lot of code that changes extremely frequently, so it will pollute the change file a lot. And for debugging, I want to be able to see the source for the methods, even though they are not in .changes. (I will never want to version this code nor do anything else âseriousâ with it, itâs all generated stuff). ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD lab - Computer Science Department (DCC) - University of Chile

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Christophe Demarey

Le 30 mars 2015 Ã 09:10, Marcus Denker a Ã©crit : > >> On 29 Mar 2015, at 10:32, stepharo <stepharo(a)free.fr> wrote: >> >> Before that I would like that the compiler outputs classes definition in an environment (that can be the default one) but that can be the one >> I want and specified from the outside of the compiler. > > For installing, it is the ClassInstaller that does that (and yes, it has an environment). > > What the compiler does not have is to look up references e.g. to symbols regarding to an environment, but that is because we > donât have that concept right now in the system in general. globals/class vars are requested from the class (which defines its environment). > > So in general, we first need a use case, else it is not clear what to doâ¦ A first use case could be to install new code in a sandbox, check if the loading is good, and then move the code to the default environment, else drop the sandbox. It is also a part of the feature asked by Johan: install code in a sandbox for tests purposes and then drop it without perturbing the system.

March 30, 2015

Re: [Pharo-users] How to silently generate and remove code

by Marcus Denker

> On 29 Mar 2015, at 10:32, stepharo <stepharo(a)free.fr> wrote: > > Before that I would like that the compiler outputs classes definition in an environment (that can be the default one) but that can be the one > I want and specified from the outside of the compiler. For installing, it is the ClassInstaller that does that (and yes, it has an environment). What the compiler does not have is to look up references e.g. to symbols regarding to an environment, but that is because we donât have that concept right now in the system in general. globals/class vars are requested from the class (which defines its environment). So in general, we first need a use case, else it is not clear what to doâ¦ Marcus

March 30, 2015

Boardician (board game framework) update

by Laura Risani

Hi all, I did some clean up and implemented one new (old) game. More changes to come upon feedback. It's very important that we all play with them cause science shows that this type of games improve brain function <http://www.technologyreview.com/view/415115/does-tetris-boost-brainpower/>. You can install configuration BgBoardician from Configuration Browser on 3.0 and 4.0 . Documentation here <http://boardician.blogspot.com.ar/2015/03/boardician.html> Best, Laura

March 29, 2015