February 2019 - Pharo-users

firebase client in pharo?
by Tudor Girba Feb. 22, 2019

Feb. 22, 2019

Hi, Did anyone worked on connecting Pharo with Firebase? Cheers, Doru -- www.feenk.com "Quality cannot be an afterthought."

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How to test a new Iceberg baseline?
by Tim Mackinnon Feb. 22, 2019

Feb. 22, 2019

How does one go about testing an Iceberg/metacello baseline? Two parts to this actually - I want to check one under my control - and am wondering if there is a lint checker or some way to tell me what it will load (without having to check it in and try. Or if you do this - can you test loading from a branch? Similarly - if I want to try improving a baseline in another project - is there an easy way to do this (in this case, I canât really check it in - or I suppose I can fork all the dependencies and put them all in branches - but then how do convince each part of the chain to load from my forkâ¦ this sounds like a world of pain). So any tips? Tim

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Embedding object properties in NeoJSON mappings
by Esteban Maringolo Feb. 22, 2019

Feb. 22, 2019

Hi all (again), As part of writing the port (and adaptation to use Zinc and NeoJSON), a CouchDB JSON-REST API, now I find something I don't know how to solve using NeoJSON mappings. All objects you store in CouchDB at a particular URI are saved as "Documents", so if you save a dictionary with keys "name", "height", "c" to "/people/1234" , when you query "people/1234" you get the keys of the saved dictionary PLUS to extra keys called _id and _rev. Then when you query (GET) back the document you get a JSON like this: {"_id": ..., "_rev": ..., "name": ..., "height":...,} My Idea is that I can wrap any object serializable as JSON within aDocument, but then if I define CouchDocument class>>#neoJsonMapping: mapper as: mapper for: self do: [ :mapping | mapping mapAccessor: #id to: '_id'. mapping mapAccessor: #revision to: '_rev'. mapping mapAccessor: #class to: '_class' ]. I have no way to "flatten"/"merge" anObject within aDocument. I would expect something like mapper for: self do: [ :mapping | mapping mapAccessor: #id to: '_id'. mapping mapAccessor: #revision to: '_rev'. mapping mapAccessor: #class to: '_class' mapping embed: [:object | object whatToEmbed] ]. Of course this is awkward, because if I need to read it back, the "extraction" of the embeded properties needs to know which belongs to which and more importantly , what to instantiate! Of course I can do it manually without using NeoJSON (It's already being done [1]) , but I like when different libraries things fit naturally together :) Am I stretching it too much? :) Regards, [1] Currently the writing is done manually and the refresh (which is also a GET) does the following: CouchDocument>>#refresh " Update this Document to the latest revision " | response | response := self information. "response is a Dictionary" revision := response at: '_rev'. object := response couchToObject. ^response And here happens the magic, it searchs for a "_class" key which if present will use to instantiate the object "wrapped" by the document. Dictionary>>couchToObject | class object | self removeKey: '_id' ifAbsent: []. self removeKey: '_rev' ifAbsent: []. self keysAndValuesDo: [:key :value | self at: key put: value couchToObject]. class := (self at: '_class' ifAbsent: [^self]) asSymbol asClass. object := class basicNew. object jsonInstanceVariableNames keysAndValuesDo: [:index :key | self at: key ifPresent: [:value | object instVarAt: index put: value]]. ^object #jsonInstanceVariableNames is another level of "mapping" here, that defined what to map from the Document response. Esteban A. Maringolo

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Pharo Object Serialization
by BrunoBB Feb. 22, 2019

Feb. 22, 2019

Hi, Which are the options for serialize objects in Pharo ? I know there is Fuel (https://rmod.inria.fr/web/software/Fuel) OmniBase is not supported any more. OmniBase was pretty cool even transactional !!! What are you using ? (of course there is GemStone/S but i was not able to convince my client yet :) regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Streams for FileReference in Pharo 7
by Jan BlizniÄenko Feb. 22, 2019

Feb. 22, 2019

Hello everyone I am trying to use Pharo 7 for my project and I noticed that most of my streams related code does not work anymore. Reason is that API for streams received from writeStream of FileReference changed and I think it changed for the worse in my case, because << does not properly handle any other objects than strings anymore. In both Pharo 6 and 7 I can write String streamContents: [ :s | s << 'hello' << 42 << $! ]. and get 'hello42!'. I can write in Pharo 6 but cannot in Pharo 7 'hello.txt' asFileReference writeStreamDo: [ :s | s << 'hello' << 42 << $! ] In Pharo 6, I get same result in both examples (written to the file in second case of course), but in Pharo 7, the second example results in exception because << does not work with anything other than strings, so it seems I have to manually convert everything to strings. This change to streams seems to me like a setback for 2 reasons: 1) API amongst streams is no longer consistent in this case 2) streams for files lost useful functionality and to make my project compatible with Pharo 7, I have to make lots of effort to make my code uglier and longer I would like to ask for the reason of this change and whether is there anything that can be done with it. Or do I just misuse or misunderstand anything? Thank you. Best regards, Jan -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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Iliad & disbled JS
by Siemen Baader Feb. 22, 2019

Feb. 22, 2019

Hi, has support for disabled JavaScript been removed from Iliad? When I do $ curl http://localhost:9999/examples/counters I get [...] <h1>0</h1><a href="javascript:{}" onclick="iliad.evaluateAction("/examples/counters?_session=e333771f-db3e-0d00-bc9a-e623066cc382&_action=10073&_state=bb37771f");">++</a> [...] So it works only with JS enabled. It would be nice to be able to make requests from non-JS-capable clients such as ZnEasy for testing purposes. Can I re-enable it? -- Siemen

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Remember to registrar to Pharo days 2019!
by Esteban Lorenzano Feb. 22, 2019

Feb. 22, 2019

Dear all, Pharo days registration is open since two weeks now, and we are starting to work on the schedule and organising the social event :) Register now! Pharo days is a gathering of the Pharo community to exchange, discuss and code with your online colleagues. Join us to share your experiences and help to make a better Pharo! To register, please proceed to the Pharo Days 2019 web page: https://pharo.org/2019PharoDays <https://pharo.org/2019PharoDays>, or go directly to the association event: https://association.pharo.org/event-3255426 <https://association.pharo.org/event-3255426>. (Yes, the schedule is still to be defined, stay tuned). If there are any questions or problems, I am happy to answer them. Esteban

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Partition/Sync ready databases for Pharo?
by Esteban Maringolo Feb. 22, 2019

Feb. 22, 2019

I have the requirement that an app that I'm prospecting must be able to work offline and synchronize changes once the connection is restored. I want to avoid having to write "sync" logic manually. Is anybody using Pharo with a database that supports automatic synchronization (replicas?) like the one provided by Firebase (Realtime Sync or Firestore)? I rather use PostgreSQL/SQLite locally and sync with a "central" DB, because I'm familiar with SQL/RDBMS, but I'm open to options. Regards, Esteban A. Maringolo

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Running pharo in daemon mode
by sergio ruiz Feb. 22, 2019

Feb. 22, 2019

Hey, all.. I found my issue.. I need to be running in daemon mode.. i was running with &, but as soon as my connection lets go, the app dies.. I tried using daemon tools, but it looks like the site stays up for one second, and a new PID is generated.. Anyone have any hints on how people are doing this lately? Thanks! ---- peace, sergio photographer, journalist, visionary Public Key: http://bit.ly/29z9fG0 #BitMessage BM-NBaswViL21xqgg9STRJjaJaUoyiNe2dV http://www.codeandmusic.com http://www.twitter.com/sergio_101 http://www.facebook.com/sergio101

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Iceberg Custom SSH Keys
by BrunoBB Feb. 22, 2019

Feb. 22, 2019

Hi, Does Iceberg support a pair of key generated with PuTTY as RSA ? I can Push local changes with TortoiseGit client. But inside Pharo i get "Iceberg Authentication Error" when doing a Push. "Use custom SSH keys" is set but we use RSA keys generated with PuTTY. Maybe i'm missing something. regards, bruno -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

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