June 2018 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Paul DeBruicker

Tim Mackinnon wrote > Hi - Iâve hit some Json where the outputted values (they are field names) > are written out in a specific order - and the author hasnât chosen to use > an array to represent those fields in a specific order. > > { âfield1â : { â¦.}, âfield2â: { â¦ } } > > I think this is technically incorrect and should be: > > { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} > > Anyway - given what Iâve got, would it be a terrible idea to create my own > version NeoJsonObject and just make it a subclass of OrderedDictionary? > > I canât see any issues - but then I might be kidding myselfâ¦ > > Tim Seems like those are two different JSON objects. The first is what you'd get from a NeoJSONObject holding a Dictionary. The second is what you'd get from a NeoJSONObject holding an Array holding a Dictionary as its only element. Maybe just double check that the right object is getting created. For JSON (https://json.org/) I think the order of the keys does not matter, but the hierarchy does, so making an OrderedDictionary subclass seems extra. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

June 7, 2018

Re: [Pharo-users] Morph & MVC tutorials

by K K Subbu

On Thursday 07 June 2018 03:07 AM, Matias Maretto wrote: > Hi guys, I have been doing some things with Dolphin, actually feel very > confortable with it, but now I am trying to learn Pharo. I have noticed > that many things are quite similars,Â but others are very differents, > one of this thingsÂ is the Visual Part, can someone point me out some > good tutorial forÂ Morph and MVC, I trying to understand the use of these >s two "worlds" and I want to "play" a little with them. MVC is a dated GUI framework. Morphic is a live and direct graphical programming framework. A good place to start is chapter 5 in: https://github.com/SquareBracketAssociates/UpdatedPharoByExample The original paper(?) by John Maloney and Randy Smith is at: http://web.media.mit.edu/~jmaloney/papers/DirectnessAndLivenessInMorphic.pdf and a tutorial exploring the basic concepts is at: http://sdmeta.gforge.inria.fr/FreeBooks/CollectiveNBlueBook/morphic.final.p… HTH .. Subbu

June 7, 2018

Re: [Pharo-users] Is it bad to have an order NeoJsonObject?

by Sven Van Caekenberghe

Tim, > On 7 Jun 2018, at 01:37, Tim Mackinnon <tim(a)testit.works> wrote: > > Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. > > { âfield1â : { â¦.}, âfield2â: { â¦ } } > > I think this is technically incorrect and should be: > > { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} > > Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? > > I canât see any issues - but then I might be kidding myselfâ¦ > > Tim Yea, I think you could try making a NeoJSONOrderedObject as a subclass of OrderedDictionary, modelled after NeoJSONObject. Just remember it is implemented using DNU, which will surprise you at one point. Sven

June 7, 2018

Re: [Pharo-users] more on "can't get keyboard shortcuts to work on Mac"

by GreggInCA

Tom, thanks for the detailed instructions. They help, but many of the shortcuts listed in Help (Help window > Pharo Environment Help > Keyboard Shortcuts > Browser Shortcuts) don't work. cmd-b, cmd-m works as you said, but anything that begins with Meta + f (i.e., cmd-f) brings up a Find and Replace dialog, just as you would expect any Mac application to provide (i.e., cmd-f lets you find things). Some shortcuts do work, while others do not. Other examples of things not working: With a system browser active and a class selected, Meta + t, Meta + c does *not* "show class side" (which is what the Browser Shortcuts window says it should do). I'm sure this is Mac-specific, with built-in Mac behavior having precedence over any application-defined behaviors. As I said in my earliest post, I've looked everywhere in the Mac environment for ways to turn this Mac behavior off, with no success. Hey, I can live without keyboard shortcuts, but I thought I'd put some energy into seeing if it's possible to get them to work. If no one running Pharo 6.1 on a Mac can tell anything that might help, I'll just give it up and use menus. Everybody, thanks for your help! === original post === Tim Mackinnon wrote > Hi Greg - meta is the Cmd key on a Mac. > > So you type cmd-shift-f for reformat code in a method, cmd-s to save. > > There are some chorded keys - eg cmd-b cmd-m (keep holding the cmd then > press b followed by m) to browse implementers of the selected method. > > On Linux the meta key is Ctrl (just an FYI) > > While discussing keystrokes - a less obvious but very useful one is > shift-enter to get the spotter (sort of like the Macâs spotlight but for > code) > > All of this is in the help documentation - Help | Help Browser | Pharo > Environment Help. > > But happy to get you started, as itâs frustrating if the basics arenât > working for you. > > Tim > > Sent from my iPhone > >> On 5 Jun 2018, at 04:50, Gregg Williams < > gregg13@ > > wrote: >> >> Tim and Ben, >> >> Thanks for your help. Sorry for not being clear. When I said "I just >> can't get keyboard shortcuts to work on Mac," what I should have said is >> "I just can't get Pharo-specific shortcuts to work on the Macintosh >> implementation of Pharo" (6.1 is what I'm using BTW). >> >> Maybe I should have said "keymap shortcuts"? I'm talking about things >> like Meta+Shift+f for 'find class', and Meta+x, Meta+m for 'remove >> method'. >> >> I've looked for what the definition of Meta is for Mac OS. All I can find >> is meta-click is Shift+Option+click, but that doesn't seem to work. >> Option + > <many keys> > gives "special characters" like â, Ã, and Å. >> >> I hope that now you can simply say, "Oh, of course, what you need to do >> isâ¦". Thanks! >> >> >>> I just can't get keyboard shortcuts to work on Mac. I?ve tried a lot of >>> stuff, more than I can list here. Here are some things I?ve tried: >>> >>> * searching the Pharo by Example book >>> * turning off all Mac keyboard-macro programs >>> * switching from extended to standard US keyboard >>> * looking at options in System Preferences > Keyboard >>> >>> >>> If you?re on the Mac, do you have this problem? If so, what?s your >>> solution? Thanks! >>> >> >> -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

June 7, 2018

Is it bad to have an order NeoJsonObject?

by Tim Mackinnon

Hi - Iâve hit some Json where the outputted values (they are field names) are written out in a specific order - and the author hasnât chosen to use an array to represent those fields in a specific order. { âfield1â : { â¦.}, âfield2â: { â¦ } } I think this is technically incorrect and should be: { [ {âfield1â : { â¦.}, âfield2â: { â¦ } ]} Anyway - given what Iâve got, would it be a terrible idea to create my own version NeoJsonObject and just make it a subclass of OrderedDictionary? I canât see any issues - but then I might be kidding myselfâ¦ Tim

June 6, 2018

Morph & MVC tutorials

by Matias Maretto

Hi guys, I have been doing some things with Dolphin, actually feel very confortable with it, but now I am trying to learn Pharo. I have noticed that many things are quite similars, but others are very differents, one of this things is the Visual Part, can someone point me out some good tutorial for Morph and MVC, I trying to understand the use of these two "worlds" and I want to "play" a little with them. Thanks. MatÃas.

June 6, 2018

SQL Server

by Linkerstorm

Hi. With Pharo 6.1, how to connect to a SQL Server database ? Thanks.

June 6, 2018

Re: [Pharo-users] more on "can't get keyboard shortcuts to work on Mac"

by Tim Mackinnon

Hi Greg - meta is the Cmd key on a Mac. So you type cmd-shift-f for reformat code in a method, cmd-s to save. There are some chorded keys - eg cmd-b cmd-m (keep holding the cmd then press b followed by m) to browse implementers of the selected method. On Linux the meta key is Ctrl (just an FYI) While discussing keystrokes - a less obvious but very useful one is shift-enter to get the spotter (sort of like the Macâs spotlight but for code) All of this is in the help documentation - Help | Help Browser | Pharo Environment Help. But happy to get you started, as itâs frustrating if the basics arenât working for you. Tim Sent from my iPhone > On 5 Jun 2018, at 04:50, Gregg Williams <gregg13(a)innerpaths.net> wrote: > > Tim and Ben, > > Thanks for your help. Sorry for not being clear. When I said "I just can't get keyboard shortcuts to work on Mac," what I should have said is "I just can't get Pharo-specific shortcuts to work on the Macintosh implementation of Pharo" (6.1 is what I'm using BTW). > > Maybe I should have said "keymap shortcuts"? I'm talking about things like Meta+Shift+f for 'find class', and Meta+x, Meta+m for 'remove method'. > > I've looked for what the definition of Meta is for Mac OS. All I can find is meta-click is Shift+Option+click, but that doesn't seem to work. Option + <many keys> gives "special characters" like â, Ã, and Å. > > I hope that now you can simply say, "Oh, of course, what you need to do isâ¦". Thanks! > > >> I just can't get keyboard shortcuts to work on Mac. I?ve tried a lot of stuff, more than I can list here. Here are some things I?ve tried: >> >> * searching the Pharo by Example book >> * turning off all Mac keyboard-macro programs >> * switching from extended to standard US keyboard >> * looking at options in System Preferences > Keyboard >> >> >> If you?re on the Mac, do you have this problem? If so, what?s your solution? Thanks! >> > >

June 6, 2018

Re: [Pharo-users] need help loading third-party packages

by Sean P. DeNigris

Gregg Williams wrote > I want to load third-party packages and read their source code. What's the > best way to do In general, the best way is via Metacello, Pharo's dependency manager. This will automatically load the required packages, avoiding the errors you encountered. Metacello provides BaselineOfAbc and ConfigurationOfXyz classes, and can be accessed a few ways: 1. A simple way for beginners and exploration is, as mentioned, the Catalog, which is a UI for ConfigurationOfXyz classes in known remote repos. 2. For programmatic loading, the preferred method is the Metacello Scripting API, IOW a script like this: ``` Metacello new baseline: 'Calypso'; repository: 'github://dionisiydk/Calypso'; load ``` 3. For completion, one can also send messages directly to BaselineOfAbc and ConfigurationOfXyz classes, but this is low level and usually not required. ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

June 5, 2018

Re: [Pharo-users] Loading Local Repositories with Iceberg

by Thierry Goubier

2018-06-05 16:24 GMT+02:00 Norbert Hartl <norbert(a)hartl.name>: > > >> Am 05.06.2018 um 16:13 schrieb Stephan Eggermont <stephan(a)stack.nl>: >> >> Norbert Hartl <norbert(a)hartl.name> wrote: >> >>> Ok, but where is the problem? >> >> - needs to work on different filesystems, with tricky behavior >> - git itself did not get the behavior right >> - git used to be non-reentrant. Did that change? >> > Ok, now we know about problems git should solve. What should we be doing? Avoid sharing a git repository between Pharo images / processes. Consider that git is a slightly unsafe way to store files in a single place; use git distributed nature (even in the same machine) as a way to cope with its limitations. Or switch to Fossil, whose use of sqlite seems safer from that viewpoint. Regards, Thierry > Norbert > >

June 5, 2018