- Pharo-users - lists.pharo.org

Re: [Pharo-users] PostgreSQL and Pharo 6

by Dimitris Chloupis

Thanks Sven, as always top quality blog post On Sun, 16 Apr 2017 at 12:04, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > > On 16 Apr 2017, at 10:36, Dimitris Chloupis <kilon.alios(a)gmail.com> > wrote: > > > > Hey guys , I play with PostgreSQL and I really like it, sorry Esteban :D > > > > I am using Python for it but I would like to give access also to Pharo > to my database. I was informed that Garage has a driver for PostgreSQL , is > there any other candidate ? Any advice ? > > There are basically just two drivers: the trusted V2 driver which is using > the traditional ASCII PostgreSQL protocol and the newer V3 driver which is > using the binary PostgreSQL protocol. That last one might be a bit less > supported by higher level packages, while the former has been around > forever. > > These drivers are pretty low level. > > If you want higher level access, there is of course Glorp, a very good > OO-RDBMS mapper. > > For a short intro, you could read the following article: > > > https://medium.com/concerning-pharo/reddit-st-in-10-cool-pharo-classes-1b53… > > Sven >

April 16, 2017

Re: [Pharo-users] PostgreSQL and Pharo 6

by Sven Van Caekenberghe

> On 16 Apr 2017, at 10:36, Dimitris Chloupis <kilon.alios(a)gmail.com> wrote: > > Hey guys , I play with PostgreSQL and I really like it, sorry Esteban :D > > I am using Python for it but I would like to give access also to Pharo to my database. I was informed that Garage has a driver for PostgreSQL , is there any other candidate ? Any advice ? There are basically just two drivers: the trusted V2 driver which is using the traditional ASCII PostgreSQL protocol and the newer V3 driver which is using the binary PostgreSQL protocol. That last one might be a bit less supported by higher level packages, while the former has been around forever. These drivers are pretty low level. If you want higher level access, there is of course Glorp, a very good OO-RDBMS mapper. For a short intro, you could read the following article: https://medium.com/concerning-pharo/reddit-st-in-10-cool-pharo-classes-1b53… Sven

April 16, 2017

PostgreSQL and Pharo 6

by Dimitris Chloupis

Hey guys , I play with PostgreSQL and I really like it, sorry Esteban :D I am using Python for it but I would like to give access also to Pharo to my database. I was informed that Garage has a driver for PostgreSQL , is there any other candidate ? Any advice ?

April 16, 2017

Re: [Pharo-users] why is adding instance variables so slow?

by Tudor Girba

Hi, Please letâs move this discussion on pharo-dev. And keep going :) Cheers, Doru > On Apr 14, 2017, at 12:09 PM, Denis Kudriashov <dionisiydk(a)gmail.com> wrote: > > > 2017-04-14 11:09 GMT+02:00 tesonep(a)gmail.com <tesonep(a)gmail.com>: > Hi, I think the problem was not clearly explained. This is the scenario that is problematic. > This scenario does not happen in the new Spur implementation of forwarding, but I think is happening in the old one. > > 1. You have, let's say 3 instances of ClassA. > 2. You add a new instance variable to ClassA. It produces > 2a. A new ClassAv2 is created with the instances variables of ClassA and the newone > 2b. 3 Instances of ClassAv2 are created > 2c. The values of the instance variables of ClassA are copied to the ones in ClassAv2 (the ones missing are left in nil). > 2d. The 3 instances of ClassA are becomed forward to the 3 instances of ClassAv2 > 2e. The ClassA is becomed forward ClassAv2 > > I still not see why my example not reflects all these steps. I checked also scenario with class becoming: > > c1 := Class1 new. > c2 := Class2 new. > c1 becomeForward: c2. > Class1 becomeForward: Class2. > Class2 allInstances "=>#(aClass2)" > > It also works in Cog -- www.tudorgirba.com www.feenk.com "What we can governs what we wish."

April 16, 2017

Re: [Pharo-users] Pharo 6.0 On windows crash while trying to run AthensFlakeDemo

by Ricardo Pacheco

Thanks a lot Cyril. Worked very well!! Regards, Ricardo -- View this message in context: http://forum.world.st/Pharo-6-0-On-windows-crash-while-trying-to-run-Athens… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 16, 2017

Re: [Pharo-users] [ANN] Prometheas : a Pharo wiki database

by Dimitris Chloupis

I plan to embed it inside the playground and create a small Pharo API for it. If I can I will provide access for it from the right click menu , like do it and print it . It will take sometime but it's coming inside Pharo. On Sat, 15 Apr 2017 at 20:43, Juraj Kubelka <juraj.kubelka(a)icloud.com> wrote: > Nice! > > Could you provide the database content using JSON REST API? We could then > have this as a part of Help Browser. > > Cheers, > Juraj > > -- > Juraj Kubelka > > > El 14-04-2017, a las 09:30, Dimitris Chloupis <kilon.alios(a)gmail.com> > escribiÃ³: > > > > Part of my Discord bot as a goal was to add the ability to create > database entries so that people can quickly find documentation. > > > > It was quite a challenge for me because I had to learn how heroku works, > PostgreSQL and all the other things but I did it!!! > > > > In any discord channel you have now 3 commands !doc , !docadd , > !docremove > > > > 1) !doc <search_term> > > search for a term in the documentation database > > eg. !doc pharo > > > > 2) !docadd <search_term> <content> <tags> <links> > > add a new entry to the documentation database > > eg. !docadd "pharo" "Pharo is a modern implementation of Smalltalk" > "{'smalltalk','live coding','language'}" "{'squeak','IDE'}" > > > > 3)!docremove <search_term> > > remove a term from database > > eg. !docremove pharo > > > > tags , is for more complex searches in the future, links for sending > users to relevant documentation > > > > I am also planning to give access to pharo users to the database from > inside the pharo image, if its easy enough to use PostgreSQL from inside > Pharo. Currently the bot is fully coded in python. > > > > The goal is not to create a full documentation but rather quick help > tips for fast pointing to the right direction. > > > > This is also an invite to experience pharo devs and newcomers to start > adding to this database. > > > > The database is PostgreSQL , one of the most populars, I have nothing > against MongoDB , its just that it works better with heroku where I host > the database. But if in the future find a way to do it for free I can move > to MongoDB, but no promises. > > > > Anyway this was an excuse for me to learn database programming that I > had abandoned 25 years ago (DBASE). > > > > So have fun with this :) > >

April 15, 2017

Re: [Pharo-users] Pharo 6.0 On windows crash while trying to run AthensFlakeDemo

by Cyril Ferlicot D.

On 16/04/2017 00:11, Esteban Lorenzano wrote: > > no, is a known issue, then. > maybe some launcher user can tell you how to update the vm? > > Esteban > Hi, Launcher user here! Download the latest vm, put it were you can execute it (mine is in C:\Program Files(x86)\Pharo\vmSpur for example, because I wanted it to be in the same place than the launcher). Then in PharoLauncher open the settings (button at the bottom right), and you'll have a setting to set the vm path for spur images (Spur vm full path). Select the .exe of the vm. Don't forget to save your image (ctrl/alt + shift + s). -- Cyril Ferlicot https://ferlicot.fr http://www.synectique.eu 2 rue Jacques PrÃ©vert 01, 59650 Villeneuve d'ascq France

April 15, 2017

Re: [Pharo-users] Pharo 6.0 On windows crash while trying to run AthensFlakeDemo

by Esteban Lorenzano

> On 15 Apr 2017, at 23:50, Ricardo Pacheco <ricardo.pacheco.roldan(a)gmail.com> wrote: > > Thanks a lot Esteban. This time everything worked OK and the demo run without > a problem. > > So the crash I was facing must be related to the VM included in the > PharoLauncher. > > Should I report it or do something about that? no, is a known issue, then. maybe some launcher user can tell you how to update the vm? Esteban > > Thanks, > > Ricardo > > > > -- > View this message in context: http://forum.world.st/Pharo-6-0-On-windows-crash-while-trying-to-run-Athens… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

April 15, 2017

Re: [Pharo-users] Pharo 6.0 On windows crash while trying to run AthensFlakeDemo

by Esteban Lorenzano

you need to also download the sources: http://files.pharo.org/get-files/60/sources.zip and put them aside of the image (or the vm), otherwise it will not work. cheers, Esteban ps: PharoLauncher is shipping with an old VM and most probably many things on Pharo 6.0 will not work. Hopefully there will be an update of the launcher after release... > On 15 Apr 2017, at 23:37, Ricardo Pacheco <ricardo.pacheco.roldan(a)gmail.com> wrote: > > Esteban, > > My computer is using Windows 10. > > I'm using the Pharo Launcher 0.2.11-2016.09.22 (as indicated in the > README.txt or 3.0.20131220 as indicated in the Control panel's Programs and > characteristics). > (http://files.pharo.org/platform/launcher/pharo_installer-0.2.11.exe) > > The image I was using was the latest Pharo 6.0 (Beta) downloaded today. > http://files.pharo.org/image/60/latest.zip > > With that combination I got the crash while trying to run: AthensFlakeDemo > new openInWorld. > > As an additional test, I downloaded the VM version that you included > (http://files.pharo.org/get-files/60/pharo-win-latest.zip) with the latest > image as of today (60465), but got the following errors: > First it complained abut the missing PharoV50.cources, but loaded Pharo. > Then I tried to run the demo, but got the following error: Could not find > accessor for variable named "aFormat" > > FFICallout>>loaderForArgNamed: > FFICallout>>loaderForArgNamed:indirectIndex: > FFICallout>>argName:indirectIndex:type:ptrArity: > FFIFunctionParser>>parseArgument > FFIFunctionParser>>parseArguments > FFIFunctionParser>>parseNamedFunction: > FFICalloutMethodBuilder>>parseSignature: > FFICalloutMethodBuilder>>generate > FFICalloutMethodBuilder>>build: > FFICalloutAPI>>function:module: > AthensCairoSurface class(Object)>>nbCall: > AthensCairoSurface class>>primImage:width:height: > AthensCairoSurface class>>extent:format: > AthensCairoSurface class>>extent: > AthensFlakeDemo>>initialize > AthensFlakeDemo class(Behavior)>>new > UndefinedObject>>DoIt > OpalCompiler>>evaluate > RubSmalltalkEditor>>evaluate:andDo: > RubSmalltalkEditor>>highlightEvaluateAndDo: > [ textMorph textArea editor highlightEvaluateAndDo: arg1 action. > textMorph shoutStyler style: textMorph text ] in [ textMorph textArea > handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: arg1 > action. > textMorph shoutStyler style: textMorph text ] ] in > GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: > RubEditingArea(RubAbstractTextArea)>>handleEdit: > [ textMorph textArea > handleEdit: [ textMorph textArea editor highlightEvaluateAndDo: arg1 > action. > textMorph shoutStyler style: textMorph text ] ] in > GLMMorphicPharoScriptRenderer(GLMMorphicPharoCodeRenderer)>>actOnHighlightAndEvaluate: > WorldState>>runStepMethodsIn: > WorldMorph>>runStepMethods > WorldState>>doOneCycleNowFor: > WorldState>>doOneCycleFor: > WorldMorph>>doOneCycle > WorldMorph class>>doOneCycle > [ [ WorldMorph doOneCycle. > Processor yield. > false ] whileFalse: [ ] ] in MorphicUIManager>>spawnNewProcess > [ self value. > Processor terminateActive ] in BlockClosure>>newProcess > > Please let me know if you need me to do some other test or if you want I can > give you access t my computer using TeamViewer. > > Regards. > > > > > > > > > > -- > View this message in context: http://forum.world.st/Pharo-6-0-On-windows-crash-while-trying-to-run-Athens… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

April 15, 2017

Re: [Pharo-users] Pharo 6.0 On windows crash while trying to run AthensFlakeDemo

by Ricardo Pacheco

Thanks a lot Esteban. This time everything worked OK and the demo run without a problem. So the crash I was facing must be related to the VM included in the PharoLauncher. Should I report it or do something about that? Thanks, Ricardo -- View this message in context: http://forum.world.st/Pharo-6-0-On-windows-crash-while-trying-to-run-Athens… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

April 15, 2017