December 2019 - Pharo-users

EXIF / JPEG metadata
by Alistair Grant Nov. 30, 2025

Nov. 30, 2025

Hi Everyone, As far as I can tell, JPEGReadWriter in Pharo 7 doesn't read (or write) the image metadata, e.g. title, keywords, exposure time, etc. Is anyone aware of a package that does? Thanks! Alistair

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Re: [Pharo-users] Personal wiki / information manager
by Evan Donahue Sept. 25, 2023

Sept. 25, 2023

Seems that Pharo is a magnet for this kind of project. I've been writing one as well and using it to organize my research notes. Does anyone working on personal info mgmt tools want to talk offline? I expect we're running into some of the same issues, both conceptual and technical. Evan

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WebDav and CalDav in Pharo ?
by CÃ©drick BÃ©ler April 13, 2022

April 13, 2022

Hi all, I do some experiments with iCal. For now I serve a full calendar over HTTP. Not bad, but it is read only. Iâd like to try CalDAV. I was looking for it, and also webDAV. Gofer it smalltalkhubUser: 'UdoSchneider' project: 'FileSystemNetwork'; configuration; load. #ConfigurationOfFileSystemNetwork asClass project stableVersion load: 'Webdav' Iâve found the project of Udo, but it doesnât load on P8. I think this is due to the stream refactoring. Right now the image hung. Iâll try maybe to load it manually. But I was wondering oof there were other alternatives ? TIA, CÃ©drick

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Re: [Pharo-users] can I write this without the three if then;s
by Dennis Schetinin Feb. 15, 2020

Feb. 15, 2020

It would be an overkill to do it for this particular case, but Smalltalk makes it possible to implement a case-like construction: [ expression ] when: [ :value | condition1 ] do: [-0do :value | ... ]; when: [ :value | condition2 ] do: [ :value | ... ]; otherwiseDo: [ :value | ... ]; evaluate I am sure, something like this has been implemented already somewhere (maybe in Squeak?). Still not sure it is practical as compared to simple if-s, and for sure not widely used :) ...On the other hand, sometimes the case-like construction can be considered a more intension-revealing style. Ð¿Ñ, 27 Ð´ÐµÐº. 2019 Ð³., 22:18 Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org>: > Hello, > > Im trying to solve a challenge from exercism where I have to calculate > the points somehow gets on a very simple darts board. > > I solved it like this : > > > scoreX: anInteger y: anInteger2 > | distance | > distance := (anInteger squared + anInteger2 squared) sqrt. > distance > 10 > ifTrue: [ ^ 0 ]. > distance > 5 > ifTrue: [ ^ 1 ]. > distance > 1 > ifTrue: [ ^ 5 ]. > ^ 10 > > > but now I use three if then and I think it's ugly code. > > Is there a way I can make it more the smalltalk way ? > > > Regards, > > Roelof > >

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Test method auto-generation in Calypso
by HernÃ¡n Morales Durand Feb. 1, 2020

Feb. 1, 2020

Hi, I have this idea of typing a method in a Browser and have another code area in the same browser where the method test is "automagically generated". This is, divide the current method pane in two: One for the method being written itself, and another for its test, where at least the method selector could be autogenerated by writing testXXXX Of course being able to jump to the method test would be super nice! (and with a keyboard shortcut). This reminds myself to write the method now instead of forget it forever. Any hints to make this happen in Calypso? Cheers, HernÃ¡n

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sqlite garage
by Jeff Gray Jan. 30, 2020

Jan. 30, 2020

anyone using Garage for accessing SQLite? I am using Garage for MySQL in Pharo 7 on windows and it all works seamlessly but I don't know what connection string to use to connect to a database file that I have in my pharo directory. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Pharo 6.0 and 6.1 64 bit freeze on MacMini
by Ted F.A.van Gaalen Jan. 27, 2020

Jan. 27, 2020

Hi, I reverted to 5.0 because Pharo 6.0 and 6.1 64 bit hangs on my Mac Mini with UDH 4K screen (may that has to do with?) with its maiden image (at first start after download when: I resize or go to full screen. Maybe VM problem? my mac Mini metrics: Hardware Overview: Model Name: Mac mini Model Identifier: Macmini6,2 Processor Name: Intel Core i7 Processor Speed: 2,6 GHz Number of Processors: 1 Total Number of Cores: 4 L2 Cache (per Core): 256 KB L3 Cache: 6 MB Memory: 4 GB Boot ROM Version: MM61.0106.B1F SMC Version (system): 2.8f0 maybe this problem was already reported, but could find it. Kind Regards TedvG

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voyage mongo and transactionality
by Jonathan van Alteren Jan. 22, 2020

Jan. 22, 2020

Hello all, We are having some issues with using Voyage/Mongo for a customer project that I'd like to get your feedback on. The customer application is a form based business web application using Seaside with object persistence using Voyage with MongoDBÂ on Pharo 7.0. The application is deployed on a dedicated Linux production server running MongoDB version 4.2. The application is used to manage meeting agendas and minutes. After opening the agenda view of a future meeting, the user can add an item to the agenda by clicking a button. This calls an item editor component which answers when a Save or Cancel button is clicked. The agenda view component itself also has a Save button, which performs a Voyage save of the object aggregate (agenda + items). We've encountered an issue where a user makes changes to an agenda, but does not click the Save button. Instead, the user closes the browser or uses the navigation to go to a different part of the application. When navigating back to the original agenda, the changes made previously (e.g. items added) are still being displayed, even though they were never explicitly saved. It does not matter if we select the agenda aggregate object instance using Voyage or access it in a different way. Changes to the state of the object are retained, even though a Voyage save was never sent to the agenda instance. The cause seems to be that the Voyage repository caches the object instance and thus on select, it returns an object that is in a different state than how it was persisted. This all seems to come down to object transactionality. We have a need to 'cancel' changes made to an object instance. Before working with Pharo/Smalltalk in a non-image based environment, I was used to do this by retrieving the original object from persistence again. This also allowed for a convenient way to detect changes to an object's state, which we are missing at the moment too. We know that moving to GemStone can help us with these issues, but our current planning of customer projects does not allow us to do this within the next 3 months. And we really need to find a way to tackle these issues . Your feedback is greatly appreciated! Kind regards, Jonathan van Alteren Founding Member | Object Guild jvalteren(a)objectguild.com

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Grafoscopio accepted at FOSDEM :-)... Now looking for travel funds :-/
by Offray Vladimir Luna CÃ¡rdenas Jan. 14, 2020

Jan. 14, 2020

Hi, The subject pretty much resumes the current situation: organizers at FOSDEM[1] approved my talk about Grafoscopio for the 2020 version (Feb 1 and 2). They tell me that they don't provide travel funds, but because I spoke about the voluntary and self funded nature of the project and asked for travel funds, the usual route here is trying to find an entity, located in Brussels that would be interested in some workshops about the tool and that will cover travel expenses. Ideally such entity would be related with the subjects and themes we have been working with the Grafoscopio community: civic tech, hacktivism, reproducible research, data journalism, data feminism, critical science and technology studies, open data, collective writing self publishing and book sprints. As you can see, Grafoscopio and its community are pretty versatile and diverse in their concerns and approaches, so I hope that opens possibilities for a lot of interested sponsors, located in Brussels. Even sponsors in Europe could work, as internal travel is kind of cheap and the biggest part of the expenses are inter continental travel. I don't know of any particular European entity that could sponsor my travel funds for FOSDEM, but hopefully the European pharoers know of some. The FOSDEM organizers asked me for some possible entities so, I'm all ears :-) Santiago and Phill, any particular ideas? If not, remember that we can prepare a remote talk :-) [1] https://fosdem.org/2020/ Thanks, Offray

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[ANN] XMLParserHTML moved to GitHub
by Torsten Bergmann Jan. 8, 2020

Jan. 8, 2020

Hi, the STHub -> PharoExtras project "XMLParserHTML" was now moved from http://smalltalkhub.com/#!/~PharoExtras/XMLParserHTML to https://github.com/pharo-contributions/XML-XMLParserHTML including the FULL HISTORY The old STHub repo was marked as obsolete - but is linking to the new one. I've also setup an CI job: https://travis-ci.org/pharo-contributions/XML-XMLParserHTML which is green for Pharo 7. Some cleanups, class comments and docu was applied as you can see from commit history. The new version is tagged in git as version 1.6.0 (with a moveable tag 1.6.x in case further hotfixes are required). You can load using Metacello new baseline: 'XMLParserHTML'; repository: 'github://pharo-contributions/XML-XMLParserHTML/src'; load. or from catalog in Pharo 7 or 8. Attached is current dependency graph. More to come soon ... Bye T.

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