January 2015 - Pharo-users - lists.pharo.org

Installing GToolkit
by Evan Donahue Feb. 3, 2015

Feb. 3, 2015

Hello, I am trying to check out GTPlaygroundl, but I can't seem to get it working and was wondering if anyone had any idea what I might be overlooking. I download a new image with curl get.pharo.org | bash I run, from http://www.humane-assessment.com/blog/installing-gtoolkit Gofer new smalltalkhubUser: 'Moose' project: 'GToolkit'; configuration; loadDevelopment. #GTImageSetupCommandLineHandler asClass new activate It loads for a while and then the image closes. When I open it again the background is white and my settings have been wiped. The playground does appear, but it doesn't seem to work properly (there seems to be no way to advance the miller columns). Am I looking at the wrong installation information? Thanks, Evan

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NumericalMethods and SciSmalltalk
by nacho Feb. 3, 2015

Feb. 3, 2015

I have an application that uses DhbNormalDistribution from NumericalMethods in Pharo 3. Will in the future NumericalMethods be integrated with SciSmalltalk? Thanks in advance Nacho ----- Nacho Smalltalker apprentice. Buenos Aires, Argentina. -- View this message in context: http://forum.world.st/NumericalMethods-and-SciSmalltalk-tp4801771.html Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

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New versions of the Pharo Launcher for Windows and MacOS
by Damien Cassou Feb. 2, 2015

Feb. 2, 2015

Hi everyone, I've just updated the Windows and MacOS packages of the Pharo Launcher. Please update: http://www.smalltalkhub.com/#!/~Pharo/PharoLauncher -- Damien Cassou http://damiencassou.seasidehosting.st "Success is the ability to go from one failure to another without losing enthusiasm." --Winston Churchill

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[ANN] PUnQLite NoSQL database project updated
by Torsten Bergmann Feb. 2, 2015

Feb. 2, 2015

Hi, are you in need for really simple out of image persistency? If you like to use a small RDBMS solution with Pharo then there is the embeddable SQLite shared library and NBSQLite3 project [1] to access it. Combine it with Glorp [2] and you do not have to fight too much with SQL. On the other end of persistency world there are the so called "NoSQL databases" and beside Mongo and all the others that require special setup etc. there is this wonderful small UnQLite embeddable database [3] that similar to SQlite world only requires a simple library. Thanks to Masashi Umezawa there is a nice wrapper for Pharo already to access this tiny embeddable NoSQL database called "PUnQLite" [4] and [5], also including access to the Jx9 machinery of UnQLite. It is really cool that he made this available. This week I updated "PUnQLite" a little bit: - refactored the Native boost wrapper for UnQLite (using shared pools, ...) - documented classes - added a help topic - fixed a bug in cursors when accessing the keys in an empty database - and finally added a small spec based tool to work with a database file (see attached screenshot) One can use it to open an unqlite database, show the key value pairs and remove or add entries. If you are in latest Pharo 4 already you can load all of that right from the config browser. Be aware that you need the external unqlite shared library which is downloaded and extracted into a folder "pharo-vm" when loading the config. For instance on Windows it automagically downloads a file "pharo-vm/unqlite.dll" below your image directory and you just have to copy this shared library file to the folder where your VM (Pharo.exe) resides. Havent tried on other OS platforms. >From the Pharo side using the UnQLite database basically works like having some kind "external dictionary" in a database file. Just run that in a workspace: |db| db := PqDatabase open: 'comments.db'. db disableAutoCommit. db transact: [ Object subclasses do: [:cls | | key | key := cls asString. db at: key put: cls comment ] ]. db close. Then open the "Database Browser" from the world menu and open the "comments.db" file. You can browse the keys and values, remove entries or add new. A filter for the keys is also included. Nothing fancy but hope you like it or find it usable. Couldnt make it to PharoConf 2015 but I hope all participants enjoy their time there. Keep the others updated by using the #pharodays2015 on Twitter. Have fun! Bye T. [1] http://lists.pharo.org/pipermail/pharo-dev_lists.pharo.org/2015-January/104… [2] http://lists.pharo.org/pipermail/pharo-users_lists.pharo.org/2015-January/0… [3] http://unqlite.org/ [4] https://github.com/mumez/PunQLite [5] http://smalltalkhub.com/#!/~MasashiUmezawa/PunQLite

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Problem due to deprecation of class Url in Pharo 3 and Moose 5.0
by PBKResearch Feb. 2, 2015

Feb. 2, 2015

Hello I have run into a problem in moving some existing work from earlier versions of Pharo/Moose. I have found a work around, but I wonder if there is a tidier way of handling it. I make frequent use of Todd Blanchard's HTML parser and validator, HTMCSS (http://smalltalkhub.com/#!/~ToddBlanchard/HTMCSSValidatingParser) which was originally written for Squeak but has performed without trouble on earlier versions of Pharo. When I try to use it on Moose 5.0, I get frequent warning messages about Url being deprecated. I have made the problem go away by commenting out the deprecation warning in Url class>>new, but I wonder what should be done on a more permanent basis. The problem arises because HTMCSS does not just parse the original HTML file; it also loads and parses any referenced CSS files. (This is a function I could do without, but I don't fancy trying surgery on a complex package where I only partly understand the workings!) It constructs the full address of the CSS file by combining the root address of the HTML with the relative address of the CSS, using Url class>>combine:withRelative:, and in the course of this it invokes Url class>>new; hence the deprecation message. The deprecation message says Url has been replaced by ZnUrl, but this is clearly not a simple replacement of one message by an equivalent; there is no ZnUrl class>>combine:withRelative:, for instance. The tidiest solution would no doubt be to find an equivalent method in Zinc, which I am sure exists, and then modify the HTMCSS code to use it. I have tried to find an equivalent, but Zinc is a large and complex system and I rapidly got lost. I wonder more broadly about the strategy of deprecating functions which are required by legacy packages, as in this case. Should there at least be a way of overriding deprecations? (I suppose that is what I have done by commenting it out, but it seems crude.) Thanks in advance for any help or suggestions. Peter Kenny

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Pointer Detective - Inspecting an Object (instance) and Doing a "PointerDetective openOn: self." leads to a System Error in Pharo?
by Mircea S. Feb. 1, 2015

Feb. 1, 2015

The object is a WhateverRoot instance (subclass of WAComponent) that has "canBeRoot ^true." Am I doing something wrong? PS. My "eagle eye" caught a typo on line 9 of the error. "'Orginal error:' ,title asString.". Maybe, just maybe... More info and an printscreen here: http://stackoverflow.com/questions/28210014/pointer-detective-inspecting-an…

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Seaside - How do I install Scriptaculous on a clean Seaside install (via Configuration Browser) on Pharo?
by Mircea S. Feb. 1, 2015

Feb. 1, 2015

I used the method described here to install Seaside3 on Pharo. All is well, but Scriptaculous doesn't come preinstalled. How do I get it? Seaside3 : 1: Go to the configuration manager 2: Select the Seaside 3 configuration. Click on Install. 3: Wait while it loads. Takes a couple of minutes on an i7 and a decent network link. 4: Open a Workspace and start a ZincServerAdaptor on the port you like (here 8080): ZnZincServerAdaptor startOn: 8080. (then CMD+d for Do It) 7: Access Seaside from your browser. 8: Install Scriptaculous, but how?

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Seaside on Pharo - Why the weird jQuery integration syntax compared to Scriptaculous?
by Mircea S. Feb. 1, 2015

Feb. 1, 2015

Seaside on Pharo - Why the weird jQuery integration syntax compared to Scriptaculous? Ex1: html scriptaculous sortable onUpdate: (html scriptaculous... etc). html jQuery new sortable onStop: (html jQuery... etc). Ex2: html scriptaculous effect id: helpId; toggleAppear. (html jQuery id: helpId) slideToggle: 1 seconds. The way jQuery and Scriptaculous were integrated 'seems' similar. Can anyone explain what design change took place between the two and it's effect on syntax? PS. Especially in the last example.

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Standalone GUI
by falzonidavide＠libero.it Feb. 1, 2015

Feb. 1, 2015

Hi guys, How can I make a standalone pharo installation that starts on a GUI? About the gui: my first idea was to use Morphic, but then user has access to all the source code, am I right? Thanks Francis

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Pharo Shop
by Torsten Bergmann Feb. 1, 2015

Feb. 1, 2015

What happened to the Pharo shop ... http://old.pharo-project.org/community/shop it's online but seems not be linked from the new webpage.

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