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

Re: [Pharo-users] Dictionary and Date as keys
by Alistair Grant Oct. 17, 2018

Oct. 17, 2018

Hi Petr, On Tue, 16 Oct 2018 at 21:25, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > My problem - use Dates as Dictionary keys - shortly: > > d1 := Date today translateToUTC. > d2 := Date today. > > d1 = d2. (true!) Which timezone are you in? CEDT (UTC+0200) gives false for this. Date is implemented primarily as a timespan, so days in different timezones are considered different. If you do: | d1 d2 | d1 := Date today translateTo: (TimeZone abbreviated: 'UTC') offset. d2 := Date today translateTo: (TimeZone abbreviated: 'EST') offset. { d1 = d2. d1 equals: d2 } You can see the difference. Of course, this doesn't help with using Date as a key in a dictionary. Probably your best option is to look at Sven's excellent ZTimezone package (although I haven't tested it in this scenario). I can't find the repository right now (I think Sven moved it to github). Sven? Cheers, Alistair > d := Dictionary new. > d at: d1 put: 1. > > d at: d1. (ok) > d at: d2. (bad - key not found) > > --- > > pf >

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Re: [Pharo-users] Dictionary and Date as keys
by Sven Van Caekenberghe Oct. 16, 2018

Oct. 16, 2018

> On 16 Oct 2018, at 19:53, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Petr Fischer <petr.fischer(a)me.com> > Subject: Dictionary and Date as keys > Date: 16 October 2018 at 19:53:40 GMT+2 > To: pharo-users(a)lists.pharo.org > > > My problem - use Dates as Dictionary keys - shortly: > > d1 := Date today translateToUTC. > d2 := Date today. > > d1 = d2. (true!) Hmm, no, for me (Pharo 7) Date today = Date today translateToUTC is false as it should be. > d := Dictionary new. > d at: d1 put: 1. > > d at: d1. (ok) > d at: d2. (bad - key not found) > > --- > > pf > > >

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Re: [Pharo-users] STON and persisting Dates - problem
by Sven Van Caekenberghe Oct. 16, 2018

Oct. 16, 2018

> On 16 Oct 2018, at 21:29, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Petr Fischer <petr.fischer(a)me.com> > Subject: Re: [Pharo-users] STON and persisting Dates - problem > Date: 16 October 2018 at 21:29:22 GMT+2 > To: pharo-users(a)lists.pharo.org > > > You mean "development" version, right? Will it be available in stable version? Thanks! pf Yes and yes (modulo feedback) >> Petr, >> >> You should use the latest STON, where Dates are now serialised with a timezone indicator. >> >> Sven >> >>> On 16 Oct 2018, at 19:59, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: >>> >>> >>> From: Petr Fischer <petr.fischer(a)me.com> >>> Subject: STON and persisting Dates - problem >>> Date: 16 October 2018 at 19:59:55 GMT+2 >>> To: pharo-users(a)lists.pharo.org >>> >>> >>> Hello, >>> >>> if I persist Dictionary with Date keys with STON, there is a problem. >>> >>> STON serializes Dates as: Date [ '2018-10-16' ] - there is no info about timezone. >>> >>> So if I put a key "Date now translateToUTC" into dictionary, save to STON file, and then load again from STON file, Dictionary Date keys are restored in local time zone, so the keys in Dictionary is different - so after deserialize from STON file I can't find anything in Dictionary anymore. >>> >>> Should I use ZTimestamp? :) >>> >>> Thanks, pf >>> >>> >>> >> > > >

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Re: [Pharo-users] STON and persisting Dates - problem
by Sven Van Caekenberghe Oct. 16, 2018

Oct. 16, 2018

Petr, You should use the latest STON, where Dates are now serialised with a timezone indicator. Sven > On 16 Oct 2018, at 19:59, Petr Fischer via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Petr Fischer <petr.fischer(a)me.com> > Subject: STON and persisting Dates - problem > Date: 16 October 2018 at 19:59:55 GMT+2 > To: pharo-users(a)lists.pharo.org > > > Hello, > > if I persist Dictionary with Date keys with STON, there is a problem. > > STON serializes Dates as: Date [ '2018-10-16' ] - there is no info about timezone. > > So if I put a key "Date now translateToUTC" into dictionary, save to STON file, and then load again from STON file, Dictionary Date keys are restored in local time zone, so the keys in Dictionary is different - so after deserialize from STON file I can't find anything in Dictionary anymore. > > Should I use ZTimestamp? :) > > Thanks, pf > > >

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STON and persisting Dates - problem
by Petr Fischer Oct. 16, 2018

Oct. 16, 2018

Hello, if I persist Dictionary with Date keys with STON, there is a problem. STON serializes Dates as: Date [ '2018-10-16' ] - there is no info about timezone. So if I put a key "Date now translateToUTC" into dictionary, save to STON file, and then load again from STON file, Dictionary Date keys are restored in local time zone, so the keys in Dictionary is different - so after deserialize from STON file I can't find anything in Dictionary anymore. Should I use ZTimestamp? :) Thanks, pf

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Dictionary and Date as keys
by Petr Fischer Oct. 16, 2018

Oct. 16, 2018

My problem - use Dates as Dictionary keys - shortly: d1 := Date today translateToUTC. d2 := Date today. d1 = d2. (true!) d := Dictionary new. d at: d1 put: 1. d at: d1. (ok) d at: d2. (bad - key not found) --- pf

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http://pharo.org/download | Pharo7 standalone?
by H. Hirzel Oct. 16, 2018

Oct. 16, 2018

Hello The Pharo download page http://pharo.org/download offers the Pharo launcher with various images and a Pharo6.1 standalone download. I would like to have a Pharo 7 standalone installation. How do I do that? Thank you for the answer in advance Hannes

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Re: [Pharo-users] Why is the root class of tests named TestAsserter?
by Sean P. DeNigris Oct. 16, 2018

Oct. 16, 2018

Pharo Smalltalk Users mailing list wrote > Still I think TestAsserter is not the most intuitive name. Asserter is not > even an English word if I am not mistaken. It came up in a few dictionaries in a google search, but clearly not the most common. My understanding is that [Verb]-er names are usually common names for roles (e.g. in dependency injection), but a code smell for object names. On the other hand (and not having the code in front of me), if it is an object which asserts, then maybe okay? Do you have any suggestions for a better name? ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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TxText ?
by Hilaire Oct. 14, 2018

Oct. 14, 2018

Hi, I read on some Rubric class comment, it will be replaced or merged with TxText. I heard about TxText on this list, but what is the status of TxText? Thanks Hilaire -- Dr. Geo http://drgeo.eu

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Persistant Taskbar Previews
by Steffen MÃ¤rcker Oct. 13, 2018

Oct. 13, 2018

Hi, Using Pharo 6.1 for some hours, I ended up with quite a few previews from (long gone) taskbar entries that refuse to go away. They seem to be PanelMorphs. How do I get rid of them? Best, Steffen

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