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

Re: [Pharo-users] Why no collect:ifNone: ?

by Tim Mackinnon

Yep - as I was reading the replies from you and Esteban - I was thinking there was something odd, and its correct, Iâve been careless - the problematic code had a trailing #sum to it, which is actually where the problem wasâ¦. total := schedule ifEmpty: [ 0 ] ifNotEmpty: [ :c | (c collect: [ :r | ((DateAndTime fromString: r end) - (DateAndTime fromString: r start)) asHours ]) sum ]. So you are both correct - it should have used inject. total := schedule inject: 0 into: [ :result :item | result + ((DateAndTime fromString: item end) - (DateAndTime fromString: item start)) asHours ]. Oops - thanks for being my sound board. Tim > On 30 Apr 2018, at 22:02, Francisco Garau <francisco.garau(a)gmail.com> wrote: > > > Have you tried #inject:into: ? Looks like what are needing here > > - Francisco > > >> On 30 Apr 2018, at 19:37, Tim Mackinnon <tim(a)testit.works> wrote: >> >> >> Hi - I hit a small bug in my lunch experiments with Willow where I wanted to sum up a collection of support hours. >> >> I was collect: in the hours worked and hadnât accounted for an empty collection. >> >> When I went to do it I was surprised there isnât a concept of #collect:ifNone: that mirrors something like at:ifAbsent: or the nicely readable collect:thenXxx: methods. >> >> Why is this? >> >> Iâm curious about style - and the elegance of my workaround : >> >> result ifEmpty: [ 0 ] ifNotEmpty:[ :r | r collect: [:I | i hours ]] >> >> which is ok, but seems a mouthful? >> >> Am I missing a trick? >> >> Tim >> >> Sent from my iPhone >>

April 30, 2018

Re: [Pharo-users] Why no collect:ifNone: ?

by Esteban A. Maringolo

Hi Tim, What I found confusing there is that with #select:thenCollect: or #collect:thenXxx: you're always dealing with collections. In your #collect:ifNone: there is a mix. You can return a collection (#collect:) or the result of evaluating the emptyBlock, which in your example is a number, so I it seems like a semantic mismatch smell to me. Following your example: myVar := result ifEmpty: [ 0 ] ifNotEmpty:[ :r | r collect: [:I | i hours ]]. What will be in myVar? a collection? a number? something else?. Maybe your example is too abstract to give a good feedback. Regards, On 30/04/2018 15:37, Tim Mackinnon wrote: > > Hi - I hit a small bug in my lunch experiments with Willow where I wanted to sum up a collection of support hours. > > I was collect: in the hours worked and hadnât accounted for an empty collection. > > When I went to do it I was surprised there isnât a concept of #collect:ifNone: that mirrors something like at:ifAbsent: or the nicely readable collect:thenXxx: methods. > > Why is this? > > Iâm curious about style - and the elegance of my workaround : > > result ifEmpty: [ 0 ] ifNotEmpty:[ :r | r collect: [:I | i hours ]] > > which is ok, but seems a mouthful? > > Am I missing a trick? > > Tim > > Sent from my iPhone > -- Esteban A. Maringolo

April 30, 2018

Why no collect:ifNone: ?

by Tim Mackinnon

Hi - I hit a small bug in my lunch experiments with Willow where I wanted to sum up a collection of support hours. I was collect: in the hours worked and hadnât accounted for an empty collection. When I went to do it I was surprised there isnât a concept of #collect:ifNone: that mirrors something like at:ifAbsent: or the nicely readable collect:thenXxx: methods. Why is this? Iâm curious about style - and the elegance of my workaround : result ifEmpty: [ 0 ] ifNotEmpty:[ :r | r collect: [:I | i hours ]] which is ok, but seems a mouthful? Am I missing a trick? Tim Sent from my iPhone

April 30, 2018

[Voyage] How to declare an instance variable as transient?

by sergio ruiz

Hi, all.. I have an instance variable that I donât want to save as part of the full project. I was wondering how to set this up. The documentation says: Lastly, attributes can be excluded from storage (and hence retrieval) by re- turning a VOMongoTransientDescription instance as the attribute descrip- tor. But I am not sure how to set this up in my class. thanks!Â ---- peace, sergio photographer, journalist, visionary Public Key:Â http://bit.ly/29z9fG0 #BitMessageÂ BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.codeandmusic.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

April 30, 2018

Re: [Pharo-users] Pharo 7 image, some more size reducation

by Hilaire

Le 29/04/2018 Ã 12:52, phil(a)highoctane.be a Ã©critÂ : > Basic features seem to work nicely on my Windows 8.1 box. > I like the dark theme :-) So far I only see one usability issue with the Dark theme: the tooltips, the contrast is two low with the surrounding area, we hardly see it when it pop up: The tooltips will be better with a pale yellow background and black text for example. It does not seem possible to easily adjust it in the Drak Theme though > > I would love to be able to select another palette than the existing > one for figures and points etc. > Something somewhat more subtle instead of 255,255,0 variations. > > Check this out https://terminal.sexy/ > -- Dr. Geo http://drgeo.eu

April 29, 2018

Re: [Pharo-users] Pharo 7 image, some more size reducation

by phil＠highoctane.be

On Sun, Apr 29, 2018 at 10:35 AM, Hilaire <hilaire(a)drgeo.eu> wrote: > Le 28/04/2018 Ã 12:11, phil(a)highoctane.be a Ã©crit : > >> >> Very interesting to read that code. (There is a typo in workstation at >> one point). >> > Thanks, fixed. > >> >> >> >> [2] >> https://www.dropbox.com/s/a4wb7c6od4fdl9k/DrGeo.app-18.06a.zip?dl=0 >> <https://www.dropbox.com/s/a4wb7c6od4fdl9k/DrGeo.app-18.06a.zip?dl=0> >> >> >> Trying it out :-) >> > > Cool Basic features seem to work nicely on my Windows 8.1 box. I like the dark theme :-) I would love to be able to select another palette than the existing one for figures and points etc. Something somewhat more subtle instead of 255,255,0 variations. Check this out https://terminal.sexy/ Phil > > -- > Dr. Geo > http://drgeo.eu > > > > >

April 29, 2018

Re: [Pharo-users] Smalltalk-76 Demo

by Steffen MÃ¤rcker

April 29, 2018

Re: [Pharo-users] Pharo 7 image, some more size reducation

by Hilaire

Le 28/04/2018 Ã 12:11, phil(a)highoctane.be a Ã©critÂ : > > Very interesting to read that code. (There is a typo in workstation at > one point). Thanks, fixed. > > > > [2] > https://www.dropbox.com/s/a4wb7c6od4fdl9k/DrGeo.app-18.06a.zip?dl=0 > <https://www.dropbox.com/s/a4wb7c6od4fdl9k/DrGeo.app-18.06a.zip?dl=0> > > > Trying it out :-) Cool -- Dr. Geo http://drgeo.eu

April 29, 2018

Re: [Pharo-users] Showcasing Pharo, Roassal and Grafoscopio at re:publica 2018

by Offray Vladimir Luna CÃ¡rdenas

Thanks folks for all your support words and offerings. I am now still installing myself in Berlin, but as soon as I can, I will answer in a more detailed fashion. Cheers, Offray On 26/04/18 08:57, Offray Vladimir Luna CÃ¡rdenas wrote: > Hi, > > I will be showcasing Pharo, Roassal and Grafoscopio at re:publica 2018, > next week. As you may know, re:publica[2] is one of the most important > and visible media & digital culture conventions in Europe and is a good > scenario for the Pharo community.Â You can find details about my > participation at [1] > > [1] > https://18.re-publica.com/en/session/data-clinic-twitter-data-selfies-data-… > [2] https://18.re-publica.com/en > > I will be making intensive refactoring on the Dataviz package to create > some usual and unusual data visualizations from data exported from > Twitter, so I may be more active those days in the Discord and mailing > list channels, is some questions arise. > > Thanks in advance for the Pharo communities support. I wouldn't be able > to be there without it. > > Cheers, > > Offray > > > >

April 29, 2018

Re: [Pharo-users] Literals (Richard Sargent)

by Debiller 777

Well, set idea was just a small proposal, which had to help me in solving a harder problem. I wanted to add something like extensionable literal. The idea is that when compiler sees some special literal, it reads it, turns into an object and sends #parse message to it. After that literal answers something which compiler uses and considers as a result of this literal. Example: `#{1 2 3}` So compiler sees that literal initializes with it and object. Then object receives #parse message. It easily defines that its contents is set ctration and after parsing returns set object. This idea is my original intention. I hope its better than previous.

April 29, 2018