September 2014 - Pharo-users

Re: [Pharo-users] [ANN] JSON datatype support in PostgresV2 package

by Esteban A. Maringolo

Oh, I forgot. The datatype fields are converted to instances of JsonObject, from the PharoExtras/JSON package. So the version 2.4 loads such package. Even though I don't use PharoExtras/JSON for my daily JSON manipulation (I use Seaside-JSON and NeoJSON), I found it to be the most "modular"/"independent" JSON package out there. The fieldConverter can be replaced "live" in the PGConnection object by anything you like. Regards! Esteban A. Maringolo 2014-09-04 16:34 GMT-03:00 Esteban A. Maringolo <emaringolo(a)gmail.com>: > Spurred by the last discussion about GLORP, Postgres and friends, I > spent the last few hours looking into the workings of PostgresV2 to > add support to the native JSON datatype provided by PostgreSQL 9.2. > > According to PostgreSQL docs [1]: > "The json data type can be used to store JSON (JavaScript Object > Notation) data, as specified in RFC 4627. Such data can also be stored > as text, but the json data type has the advantage of checking that > each stored value is a valid JSON value. There are also related > support functions available; see Section 9.15." > > It is available at ConfigurationOfPostgresV2-EstebanMaringolo.12 in > SmalltalkHub, blessed as #development (v2.4). It includes a testcase > for the field converter (if the database server supports it). > > JSON datatype allows the indexing and querying of data inside the > structure of the json object. > > Eg: > SELECT jsonField->'attribute1'->'attribute2' FROM sampleTable; > > Adding support of this to GLORP should be easy, but I have no time now :) > > DISCLAIMER: > I'm not using this in production, I tested it and seems to work as > expected, and fail nosiliy when it should. This is why I blesed it as > #development. If anybody is bold enough, bless it as #stable :) > > Best regards, > > Esteban A. Maringolo > > [1] http://www.postgresql.org/docs/9.2/static/datatype-json.html

Sept. 4, 2014

[ANN] JSON datatype support in PostgresV2 package

by Esteban A. Maringolo

Spurred by the last discussion about GLORP, Postgres and friends, I spent the last few hours looking into the workings of PostgresV2 to add support to the native JSON datatype provided by PostgreSQL 9.2. According to PostgreSQL docs [1]: "The json data type can be used to store JSON (JavaScript Object Notation) data, as specified in RFC 4627. Such data can also be stored as text, but the json data type has the advantage of checking that each stored value is a valid JSON value. There are also related support functions available; see Section 9.15." It is available at ConfigurationOfPostgresV2-EstebanMaringolo.12 in SmalltalkHub, blessed as #development (v2.4). It includes a testcase for the field converter (if the database server supports it). JSON datatype allows the indexing and querying of data inside the structure of the json object. Eg: SELECT jsonField->'attribute1'->'attribute2' FROM sampleTable; Adding support of this to GLORP should be easy, but I have no time now :) DISCLAIMER: I'm not using this in production, I tested it and seems to work as expected, and fail nosiliy when it should. This is why I blesed it as #development. If anybody is bold enough, bless it as #stable :) Best regards, Esteban A. Maringolo [1] http://www.postgresql.org/docs/9.2/static/datatype-json.html

Sept. 4, 2014

Re: [Pharo-users] Pharo on retina macbook

by Johan Brichau

Hi again, > This should be a known issue as it was raised before. The problem occurs with any font. It has to do with the VM as far as I understood. I am not sure what is needed to be done, though. I know this was raised when the retina display came out but I did not follow any development since I was not using one. Now, I thought it had been fixed because, surely, I must not be the only one using a retina macbook with Pharo? Anyway, I can understand if this is a known issue but is it well understood what should be done? > What version of Pharo? 30856 > What version of OSX? 10.9.4 > What fonts? Any font that I can select in Pharo actually. thanks for the links below. I will try and report results. Johan > I'm not sure of these details, but it will give you some things to think about and try (and someone can correct me otherwise). > * Pharo's default font is still a bitmap StikeFont. * StrikeFont bitmaps are sub-pixel anti-aliased. > * Sub-pixel anti-aliases > * Retina display sometimes have sub-pixel rendering turned off, or maybe otherwise problem. > > Try... > * Choosing a TrueType font > * Changing some OSX display settings > * http://graphicdesign.stackexchange.com/questions/8277/how-does-apples-retin… > * http://superuser.com/questions/457153/getting-crisper-fonts-in-os-x-after-s… > * http://www.macworld.com/article/1145157/smoothsnow.html > * http://graphicdesign.stackexchange.com/questions/8277/how-does-apples-retin… > Please report your results.

Sept. 4, 2014

Re: [Pharo-users] Pharo on retina macbook

by Ben Coman

Johan Brichau wrote: > Hi, > > I just started using a Macbook pro with retina display. > I notice the fonts are quite blurry. Is there something one can do to improve that? > > Johan > > Oh! I just found the real cause of your problem. It turtles all the way down... http://xkcd.com/1416/

Sept. 4, 2014

Re: [Pharo-users] How to create a red box with text in a big font?

by Tim Mackinnon

Cool - thatâs handy to know it works somewhere (and in fact, it was when playing with GT-Inspector I noticed this - so that solution would work). Iâm still curious how you do it in Morphic? Tim On 4 Sep 2014, at 17:10, Alexandre Bergel <alexandre.bergel(a)me.com> wrote: > Using Roassal, I would do: > -=-=-=-=-=-=-=-=-= > v := RTView new. > s := RTMultiCompositeShape new. > s add: (RTBox new color: Color red; size: 500). > s add: (RTLabel new height: 70). > v add: (s elementOn: 'Hello World'). > v open > -=-=-=-=-=-=-=-=-= > > <Screen Shot 2014-09-04 at 12.10.14 PM.png> > > Cheers, > Alexandre > > -- > _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: > Alexandre Bergel http://www.bergel.eu > ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. > > > > On Sep 4, 2014, at 9:27 AM, Tim Mackinnon <tim(a)testit.works> wrote: > >> Hi guys - Iâm a bit stumped on how to create things in big text with a set background colour. I thought I understood - but it just doesnât seem to work. >> I was thinking I could create a container morph, set its background colour (which works), and then put a StringMorph inside it with a set font. This last bit I canât get to work - I can do bold, but not a bigger font size. Iâve tried different things but am missing the magic sauce - can someone spot my mistake? Below, Iâve tried using a font name that I can see in the Pharo settings dialog but it doesnât work? I also tried using LogicalFont with no success either. >> >> tMorph := StringMorph new. >> font1 := LogicalFont familyName: 'Arial' pointSize: 24. >> >> tMorph contents: 'Hello World'; >> fontName: 'Open Sans' size: 24; >> emphasis: TextEmphasis bold emphasisCode. >> >> bMorph := Morph new >> color: Color red; >> addMorph: tMorph. >> >> bMorph openInWorld. >> >> >> Tim >

Sept. 4, 2014

Re: [Pharo-users] How to create a red box with text in a big font?

by Alexandre Bergel

Using Roassal, I would do: -=-=-=-=-=-=-=-=-= v := RTView new. s := RTMultiCompositeShape new. s add: (RTBox new color: Color red; size: 500). s add: (RTLabel new height: 70). v add: (s elementOn: 'Hello World'). v open -=-=-=-=-=-=-=-=-= Cheers, Alexandre -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;. On Sep 4, 2014, at 9:27 AM, Tim Mackinnon <tim(a)testit.works> wrote: > Hi guys - Iâm a bit stumped on how to create things in big text with a set background colour. I thought I understood - but it just doesnât seem to work. > I was thinking I could create a container morph, set its background colour (which works), and then put a StringMorph inside it with a set font. This last bit I canât get to work - I can do bold, but not a bigger font size. Iâve tried different things but am missing the magic sauce - can someone spot my mistake? Below, Iâve tried using a font name that I can see in the Pharo settings dialog but it doesnât work? I also tried using LogicalFont with no success either. > > tMorph := StringMorph new. > font1 := LogicalFont familyName: 'Arial' pointSize: 24. > > tMorph contents: 'Hello World'; > fontName: 'Open Sans' size: 24; > emphasis: TextEmphasis bold emphasisCode. > > bMorph := Morph new > color: Color red; > addMorph: tMorph. > > bMorph openInWorld. > > > Tim

Sept. 4, 2014

Re: [Pharo-users] Problems Pharo 3.0 & Windows 8.1 (64 Bit)

by volkert＠nivoba.de

I think this was the reason. BW, Volkert Am 27.08.2014 um 07:54 schrieb GÃ¶ran Krampe: > Hi! > > On 08/25/2014 05:34 PM, volkert(a)nivoba.de wrote: >> Dear all, >> >> i have problems with Pharo 3.0 under Win 8.1 (64 Bit). When i quit Pharo >> and then restarting >> the it, Pharo-VM and Windows hangs. After some time (2-3 Minutes), the >> Pharo VM File Dialog opens. From time to time the Windows Desktop (!) >> crashes and restarts. > > Some antivirus active? > > regards, GÃ¶ran > > -- www.nivoba.de "The more complex an object, the larger the investment in learning to use it, and the greater the resistance to abandon it.", NW

Sept. 4, 2014

Re: [Pharo-users] Pharo on retina macbook

by volkert＠nivoba.de

I have the same problem with a Lenovo Yoga2 13 (Win 8.1) with a QHD+ Display. It has 3200x1800 px. BW, Volkert Am 04.09.2014 um 07:46 schrieb Johan Brichau: > Hi, > > I just started using a Macbook pro with retina display. > I notice the fonts are quite blurry. Is there something one can do to improve that? > > Johan -- www.nivoba.de "The more complex an object, the larger the investment in learning to use it, and the greater the resistance to abandon it.", NW

Sept. 4, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by FranÃ§ois Stephany

Yes, I guess cross dialect is not for the faint of heart. I feel like fixing bugs and improving stuff for pharo is the best way to diverge from the original project. Grumpf. On Thu, Sep 4, 2014 at 5:15 PM, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > On 04 Sep 2014, at 16:18, FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com> > wrote: > > > Ok. Is there a process somewhere on how to convert VW code to Pharo? > Just load it would already be cool. > > Glorp is pretty big and complex. > > Porting something cross platform is a huge amount of work, I think most of > it was basically done by hand. This creates a huge maintenance problem of > course. The same is true for Xtreams. Seaside seems to be able to manage > this problem by being extremely careful. > > >

Sept. 4, 2014

Re: [Pharo-users] Pharo Glorp 1.7 <-> VisualWorks

by Sven Van Caekenberghe

On 04 Sep 2014, at 16:18, FranÃ§ois Stephany <tulipe.moutarde(a)gmail.com> wrote: > Ok. Is there a process somewhere on how to convert VW code to Pharo? Just load it would already be cool. Glorp is pretty big and complex. Porting something cross platform is a huge amount of work, I think most of it was basically done by hand. This creates a huge maintenance problem of course. The same is true for Xtreams. Seaside seems to be able to manage this problem by being extremely careful.

Sept. 4, 2014