December 2017 - Pharo-users

Active IRC Chanel
by Ian Ian Dec. 21, 2017

Dec. 21, 2017

Hi All, Is there an active IRC Chanel? Read somewhere (can't remember) that there is one labeled #pharo. Is this true if so may I ask on which server it resides? Kindly in advance,

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Plotting a SMark report
by HernÃ¡n Morales Durand Dec. 20, 2017

Dec. 20, 2017

Hi guys, I benchmarked five Levenshtein implementations today and just wonder is there any package or extension which takes a SMark report and plot a Roassal bar chart? This is the best I get so far: "Report for: StringExtensionsBenchmark Benchmark LevPW100kTo LevPW100kTo total: iterations=10 runtime: 486.6ms +/-4.2 Benchmark LevPW1kWith LevPW1kWith total: iterations=10 runtime: 27.6ms +/-1.3 Benchmark LevPW1k LevPW1k total: iterations=10 runtime: 70.40ms +/-0.82 Benchmark LevPW1kTo LevPW1kTo total: iterations=10 runtime: 4.30ms +/-0.28 Benchmark LevPW100k LevPW100k total: iterations=10 runtime: 8325ms +/-101 Benchmark LevPW100kFrom LevPW100kFrom total: iterations=10 runtime: 1278.1ms +/-4.9 Benchmark LevPW100kWith LevPW100kWith total: iterations=10 runtime: 3309ms +/-75 Benchmark LevPW100kToLD LevPW100kToLD total: iterations=10 runtime: 2222ms +/-17 Benchmark LevPW1kLD LevPW1kLD total: iterations=10 runtime: 19.40ms +/-0.48 Benchmark LevPW1kFrom LevPW1kFrom total: iterations=10 runtime: 11.30ms +/-0.39 " Cheers, HernÃ¡n

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Roassal Axes
by Evan Donahue Dec. 19, 2017

Dec. 19, 2017

Does anyone know how to change the min/max of the axes? I'm trying to figure out how to make x and y not start at 0. data := #(1000 1001 1002). b := RTGrapher new. ds := RTData new. ds points: data. ds x: [ :c | c ]. ds y: [ :c | c ]. b add: ds. b minX: 999. b maxX: 1003. b minY: 999. b maxY: 1003. b. ^ this does not do what I was expecting. If the data is all clustered together but far from zero, I'd like to adjust the axes so I can see the actual variation in the data, and not just a single point where everything is clustered. What is the right way to do this? Thanks, Evan

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How to select all changes in Epicea?
by HernÃ¡n Morales Durand Dec. 19, 2017

Dec. 19, 2017

Hi guys, My Pharo image crashed and I opened Epicea for the first time. I selected "Today" changes in the left pane and then after changes are displayed in the right pane, I expected a menu item, button or popup to select all code changes and then apply them. But I couldn't find the any option, even trying with holding key buttons and applying combination of clicks. What I am missing? Using Windows here. Cheers, HernÃ¡n

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[ANN] Pharo TechTalk Dec 19: Contributing to Pharo7
by Marcus Denker Dec. 19, 2017

Dec. 19, 2017

Pharo TechTalk December 17: - 19 Dec 2017 5:00 PM - 7:00 PM (UTC+01:00) - Where? Discord / Youtube live Topic: Contributing. How to report bugs, submit code change. This will be a hands-on session where we show how to â¢ report bugs â¢ create pull requests â¢ help reviewing issues and pull requests https://association.pharo.org/event-2642666

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Iceberg is cool!
by Norbert Hartl Dec. 19, 2017

Dec. 19, 2017

I just got back from vacation and prepared a new image to work on the current project. Well, I upgraded iceberg to 0.6.5 and everything works like expected. I can see nicely what my colleagues have done while I was away. I can update everything easily. And most important I can do changes and then cherry pick and commit. So even if people are complaining about missing features (they always do!) I can say that for a basic workflow (for me about 95% of my work) everything seems to be in place. So everyone should feel invited to add the missing pieces. Well done and thank you, Norbert

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Pharo Launcher name
by Glenn Hoetker Dec. 18, 2017

Dec. 18, 2017

I love the Pharo Launcher. But, I find it confusing to have an application called âPharo.appâ. Nothing in that name suggests it is a launcher. It is also very confusing to have an application called âPharo.appâ next to one called âPharo6.1.appâ when they are very different things (at least from a users perspective). Has changing the name of the Pharo Launcher to âPharo Launcherâ ever been considered? Just a thought. Most of all, thanks for the wonderful tool. Glenn

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Pharo Glorp platform decimal to ScaledDecimal mapping
by Alistair Grant Dec. 18, 2017

Dec. 18, 2017

Hi Everyone, I've added mapping from platform decimal to ScaledDecimal for Pharo / Glorp. It's currently on the development branch and I'll move it to the master branch in a few days, assuming I don't hear of any issues. Pharo Glorp repository: https://github.com/pharo-rdbms/glorp Cheers, Alistair

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FLSerialization>>analysisStep too slow?
by Eno Dec. 17, 2017

Dec. 17, 2017

My package TkIDE <http://smalltalkhub.com/#!/~tgkuo/TkIDE> relied on object database, sandstone, to store the objects. After upgrade to 6.1 on macOS, the save process became very slow. Following the debugging process, I found the bottle neck is at this method, FLSerialization>>analysisStep. I'm just a hobbyst, not acquainted with the system core and basis packages, I cann't figure out what the cause, just guessing maybe my object is too complicated to be serialized or the FLserialization really gets something wrong. Best reguards. Eno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Zinc JSON parsing error handling
by Ben Coman Dec. 14, 2017

Dec. 14, 2017

With... Object subclass: #BittrexResponse instanceVariableNames: 'success message result' classVariableNames: '' package: 'Bittrex' Object subclass: #BittrexMarketSummary instanceVariableNames: 'MarketName High Low Volume Last BaseVolume TimeStamp Bid Ask OpenBuyOrders OpenSellOrders PrevDay Created DisplayMarketName' classVariableNames: '' package: 'Bittrex' this code works great when the response holds good data... ZnClient new url: 'https://bittrex.com/api/v1.1/public/getmarketSummary?market=BTC-LTC'; enforceHttpSuccess: true; accept: ZnMimeType applicationJson; contentReader: [ :entity | |reader| reader := (NeoJSONReader on: entity readStream). reader for: BittrexResponse do: [:m| m mapInstVar: #success. m mapInstVar: #message. (m mapInstVar: #result) valueSchema: #ResultArray]. reader for: #ResultArray customDo: [ :mapping | mapping listOfElementSchema: BittrexMarketSummary ]. reader mapInstVarsFor: BittrexMarketSummary. reader nextAs: BittrexResponse ]; get. i.e. a raw response looking like this.... (ZnClient new url: 'https://bittrex.com/api/v1.1/public/getmarketsummary?market=BTC-LTC <https://bittrex.com/api/v1.1/public/getticker?market=BTC-LTC>'; get) inspect. ==> "'{""success"":true,""message"":"",""result"":[{""MarketName"":""BTC-LTC"",""High"":0.01982450,""Low"":0.01285257,""Volume"":1436429.81313360,""Last"":0.01842000,""BaseVolume"":24841.17217724,""TimeStamp"":""2017-12-13T05:56:25.937"",""Bid"":0.01840001,""Ask"":0.01842000,""OpenBuyOrders"":10140,""OpenSellOrders"":6306,""PrevDay"":0.01439800,""Created"":""2014-02-13T00:00:00""}]}'" But for bad response looking like this... (ZnClient new url: 'https://bittrex.com/api/v1.1/public/getmarketsummary?market=INVALID'; get) inspect. ==> {"success":false,"message":"INVALID_MARKET","result":null} the JSON handling code fails deep in the call stack with an error "NeoJSONParseError: [ expected" which is not so friendly for users of the Bittrex library. What are the different/recommended approaches with Zinc for catching JSON errors such that I can pass "message" as a higher level Error up the stack to the Bittrex user. cheers -ben

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