- Pharo-dev - lists.pharo.org

base64.b64encode(data) equivalent
by Pharo4Stef March 10, 2014

March 10, 2014

Iâm sure that we have that. I remember svenâs code using encoder but I do not know where. # Method for encoding ints with base64 encoding def encode(n): data = struct.pack("i", n) s = base64.b64encode(data) return s

3 5

Is there some shared memory space?
by roberto.minelli＠usi.ch March 10, 2014

March 10, 2014

Hi guys, I am experiencing a very strange problem that makes me think there is some shared memory problem with Pharo. Here are the steps that lead to the problem: - I have an image, I do something (i.e., materializing objects with Fuel) - I encounter a problem and a debugger pops up with a âself error: something" - I close the debugger - I close the image - I reopen the image - I fix the bug (i.e., commenting the self error) - I re-run the same thing as in the first step - An OutOfMemory error appears. Any clue? Thanks, Roberto

4 10

Re: [Pharo-dev] Glorp version in Pharo
by Mariano Martinez Peck March 10, 2014

March 10, 2014

Seems it was the one that came with VW 7.7.1..... On Mon, Mar 10, 2014 at 9:38 AM, Mariano Martinez Peck < marianopeck(a)gmail.com> wrote: > > > > On Wed, Mar 5, 2014 at 4:36 PM, Esteban A. Maringolo <emaringolo(a)gmail.com > > wrote: > >> [I'm cross posting Pharo-dev mailing list too] >> >> Hi Pharo developers, >> >> I'm having an issue while performing a not so common db query (but not >> esoteric either). >> And it seems the version I'm using in Pharo is outdated compared with >> the latest version they're using in VW. >> >> Is there an official maintaner and/or updater of the Glorp port for Pharo? >> >> > No. The first time, we did ir (me, Esteban Lorenzano, Guillermo Polito, > etc). We took certain version of the VW version. I will try to search which > one. After that, no one that I am aware of did a another port again. > > >> I'm using the GlorpDriverPostgreSQL, and the Glorp package from >> SmalltalkHub (Glorp-MarianoMartinezPeck.88). >> I don't have any DBXTalk stuff in my image. >> >> > So you are using Glorp + native postgres driver. > > >> Do we know how old is the Pharo branch from VisualWorks? >> >> > Quite a bit. let me see if I find which one... > > >> Regards! >> >> Esteban A. Maringolo >> >> >> 2014-03-05 15:50 GMT-03:00 Alan Knight <knight(a)acm.org>: >> > I think that whatever version it is it's an old one, because that looks >> like >> > a bug that was fixed some while ago. It's not putting in the subselect >> table >> > in the from clause. I would hope that the Pharo port would list >> somewhere >> > which Glorp version it was built from. There's code to generate a >> > Squeak/Pharo port from the VisualWorks version, and the code tries to be >> > entirely portable in the core, but I never got fixes back from the last >> > porting effort to incorporate, so there are probably some divergences. >> > >> > >> > On 5 March 2014 10:31, Esteban A. Maringolo <emaringolo(a)gmail.com> >> wrote: >> >> >> >> Hi Tom, >> >> >> >> It might have to do with the Pharo version of Glorp. I get the exact >> >> same error as with Alan's suggestion. >> >> ... >> >> I there any way I can know which version of Glorp I'm running in Pharo? >> >> >> 2014-03-03 18:21 GMT-03:00 Tom Robinson <zxrobinson(a)gmail.com>: >> >> > Hi Esteban, >> >> > >> >> > I was able to execute the following query, equivalent to what you're >> >> > trying >> >> > to do on the current dev build of VisualWorks connected to a Store >> >> > repository running in PostgreSQL. >> >> > >> >> > | session query | >> >> > session := StoreLoginFactory currentStoreSession. >> >> > query read: StorePackage >> >> > where: [:each | | subQuery | >> >> > subQuery := Query read: StorePackage >> >> > where: [:eachPkg| eachPkg name = each name]. >> >> > subQuery retrieveMax: [:eachPkg | eachPkg timestamp ]. >> >> > each timestamp = subQuery]. >> >> > session execute: query. >> >> > >> >> > This appears to be what you're trying to do. >> >> -- >> You received this message because you are subscribed to the Google Groups >> "glorp-group" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to glorp-group%2Bunsubscribe(a)googlegroups.com. >> To post to this group, send email to glorp-group(a)googlegroups.com. >> Visit this group at http://groups.google.com/group/glorp-group. >> For more options, visit https://groups.google.com/groups/opt_out. >> > > > > -- > Mariano > http://marianopeck.wordpress.com > -- Mariano http://marianopeck.wordpress.com

1 0

Glorp version in Pharo
by Esteban A. Maringolo March 10, 2014

March 10, 2014

[I'm cross posting Pharo-dev mailing list too] Hi Pharo developers, I'm having an issue while performing a not so common db query (but not esoteric either). And it seems the version I'm using in Pharo is outdated compared with the latest version they're using in VW. Is there an official maintaner and/or updater of the Glorp port for Pharo? I'm using the GlorpDriverPostgreSQL, and the Glorp package from SmalltalkHub (Glorp-MarianoMartinezPeck.88). I don't have any DBXTalk stuff in my image. Do we know how old is the Pharo branch from VisualWorks? Regards! Esteban A. Maringolo 2014-03-05 15:50 GMT-03:00 Alan Knight <knight(a)acm.org>: > I think that whatever version it is it's an old one, because that looks like > a bug that was fixed some while ago. It's not putting in the subselect table > in the from clause. I would hope that the Pharo port would list somewhere > which Glorp version it was built from. There's code to generate a > Squeak/Pharo port from the VisualWorks version, and the code tries to be > entirely portable in the core, but I never got fixes back from the last > porting effort to incorporate, so there are probably some divergences. > > > On 5 March 2014 10:31, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: >> >> Hi Tom, >> >> It might have to do with the Pharo version of Glorp. I get the exact >> same error as with Alan's suggestion. >> ... >> I there any way I can know which version of Glorp I'm running in Pharo? >> 2014-03-03 18:21 GMT-03:00 Tom Robinson <zxrobinson(a)gmail.com>: >> > Hi Esteban, >> > >> > I was able to execute the following query, equivalent to what you're >> > trying >> > to do on the current dev build of VisualWorks connected to a Store >> > repository running in PostgreSQL. >> > >> > | session query | >> > session := StoreLoginFactory currentStoreSession. >> > query read: StorePackage >> > where: [:each | | subQuery | >> > subQuery := Query read: StorePackage >> > where: [:eachPkg| eachPkg name = each name]. >> > subQuery retrieveMax: [:eachPkg | eachPkg timestamp ]. >> > each timestamp = subQuery]. >> > session execute: query. >> > >> > This appears to be what you're trying to do.

1 1

Pharo3.0 and Halos: very annoying to work with
by phil＠highoctane.be March 10, 2014

March 10, 2014

I am working on moving TWM to 3.0 and the way morphs are controlled now is really annoying. Now, we get the new menu when doing the special clicking (e.g. Shift-Alt-Click in Windows, Cmd-Shift Click in OSX). How is one now supposed to be accessing the internal morphs by clicking multiple times and having the halo follow suit? The menu prevents that as it gets in the way. Thanks. Phil

4 8

TWM and 3.0: icons/themes, UpdatingMenuMorph
by phil＠highoctane.be March 10, 2014

March 10, 2014

I am trying to get TWM to work in 3.0 I use the Metacello config flag "trick" to make it load 2.x things. Now, things do load but there is the deprecation warnings about the way icons are handled. e.g. deleteSnapshotIcon ^ dock theme smallDeleteIcon. gives a warning. I looked into the code and now, we are supposed to do: Smalltalk ui smallDeleteIcon. Well, I changed the things that needed to be changed and then hit: newMenu: aSelector icon: aForm help: aString ^ MenuItemMorph new contents: ''; subMenu: (UpdatingMenuMorph new updater: self updateSelector: aSelector); icon: aForm; setBalloonText: aString. Where Updating MenuMorph appears to be gone in 3.0 What am I supposed to use as a replacement? TIA Phil

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Re: [Pharo-dev] [Pharo-business] [ANN] DBPedia: Query Wikipedia from Pharo
by Alexandre Bergel March 9, 2014

March 9, 2014

Iâve just tried and it works pretty well! Impressive! Below I describe a small example that fetches some data about the US Universities from DBPedia and visualize them using Roassal2. Pick a fresh 3.0 image. First, you need to load HernÃ¡n work, Svenâs NeoJSON, and Roassal 2 (If you are using a Moose Image, there is no need to load Roassal2 since it is already in): -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Gofer it smalltalkhubUser: 'SvenVanCaekenberghe' project: 'Neo'; package: 'ConfigurationOfNeoJSON'; load. ((Smalltalk at: #ConfigurationOfNeoJSON) load). Gofer it smalltalkhubUser: 'hernan' project: 'DBPedia'; package: 'DBPedia'; load. Gofer it smalltalkhubUser: 'ObjectProfile' project: 'Roassal2'; package: 'ConfigurationOfRoassal2'; load. ((Smalltalk at: #ConfigurationOfRoassal2) loadBleedingEdge). -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= Using Roassal2, I was able to render some data extracted from dbpedia: -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= | map locations rawData rawData2 rawData3 | map := RTMapBuilder new. map countries: #('UnitedStates' 'Canada' 'Mexico'). map color: Color veryVeryLightGray. rawData := DBPediaSearch universitiesInUS. rawData2 := ((NeoJSONReader fromString: rawData) at: #results) at: #bindings. rawData3 := rawData2 select: [ :d | d keys includesAll: #('label' 'long' 'lat') ] thenCollect: [ :d | { (Float readFrom: ((d at: 'long') at: 'value')) . (Float readFrom: ((d at: 'lat') at: 'value')) . (d at: 'label' ) at: 'value' } ]. locations := rawData3. locations do: [ :array | map cities addCityNamed: array third location: array second @ array first ]. map cities shape size: 8; color: (Color blue alpha: 0.03). map cities: (locations collect: #third). map scale: 2. map render. map view openInWindowSized: 1000 @ 500. -=-=-=-=-=-=-=-=-=-=-=-=-=-=-= This is what you get: This is a small example. Naturally, adding popup for locations is trivial to add. I have described this on our Facebook page: https://www.facebook.com/ObjectProfile/photos/a.341189379300999.82969.34054… HernÃ¡n, since SPARQL is a bit obscure, it would be great if you could add some more example, and also, how to parametrize the examples. For example, now we can get data for the US, how to modify your example to get them for France or Chile? Cheers, Alexandre On Mar 2, 2014, at 3:43 PM, HernÃ¡n Morales Durand <hernan.morales(a)gmail.com> wrote: > I have uploaded a new configuration so you can query the english Wikipedia dataset from Pharo 3 using SPARQL. Some examples follow: > > 1) Retrieve in JSON movies from the beautiful Julianne Moore: > > | jsonResults | > jsonResults := DBPediaSearch new > setJsonFormat; > timeout: 5000; > query: 'SELECT DISTINCT ?filmName WHERE { > ?film foaf:name ?filmName . > ?film dbpedia-owl:starring ?actress . > ?actress foaf:name ?name. > FILTER(contains(?name, "Julianne")) > FILTER(contains(?name, "Moore")) > }'; > execute > > To actually get only the titles using NeoJSON: > > ((((NeoJSONReader fromString: jsonResults) at: #results) at: #bindings) > collect: [ : entry | entry at: #filmName ]) collect: [ : movie | movie at: #value ] > > > 2) Retrieve in XML which genre plays those crazy Dream Theater guys : > > DBPediaSearch new > setXmlFormat; > setDebugOn; > timeout: 5000; > query: 'SELECT DISTINCT ?genreLabel > WHERE { > ?resource dbpprop:genre ?genre. > ?resource rdfs:label "Dream Theater"@en. > ?genre rdfs:label ?genreLabel > FILTER (lang(?genreLabel)="en") > } > LIMIT 100'; > execute > > More examples are available in DBPediaSearch class side. You can install it from the Configuration Browser. > If you want to contribute, just ask me and you will be added as contributor. > Best regards, > > HernÃ¡n > > _______________________________________________ > Pharo-business mailing list > Pharo-business(a)lists.pharo.org > http://lists.pharo.org/mailman/listinfo/pharo-business_lists.pharo.org -- _,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;: Alexandre Bergel http://www.bergel.eu ^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;._,.;:~^~:;.

7 14

Git & MS Windows path length restriction
by btc＠openinworld.com March 9, 2014

March 9, 2014

I started looking into Pharo Case 13030 "Many tests failing in MetacelloValidation Job on Jenkins" and even before getting into it, I've hit a stumbling block on Windows 7 with its pathName length restriction of 259 characters. I managed to isolate the problem as follows... MetacelloPlatform current downloadFile: 'https://github.com/dalehenrich/metacello-work/zipball/master' to: 'C:\tmp\github-dalehenrichmetacelloworkmaster.zip'. zip := ZipArchive new readFrom: 'C:\tmp\github-dalehenrichmetacelloworkmaster.zip'. zip extractAllTo: 'C:\tmp\unzippedByPharo' asFileReference. which produces the error "FileDoesNotExist: File @ C:\tmp\unzippedByPharo\dalehenrich-metacello-work-96e07b1\repository\Metacello-TestsMCB.package\MetacelloScriptingStandardTestHarness.class\instance\validateExpectedConfigurationClassName.expectedConfigurationVersion.expectedConfigurationRepository.expectedBaselineClassName.expectedBaselineVersion.expectedBaselineRepository..st" where the #size of that filename is 354 characters. Trying to drill into github-dalehenrichmetacelloworkmaster.zip from Windows Explorer produces error "The Compresses (zipped) file is invalid." However using 7Zip [1] I can extract the file so that _all_ files appear in the hierarchy, so it seems 259 is not a hard limit, and indeed that limit is imposed by the Windows Shell, since NTFS can have a path length of ~32K [2]. Operation of 7Zip was verified by: * From Pharo: zip members size --> 6007 * For cmd.exe: dir /b /s > dir.txt Open dir.txt into Notepad++ --> 6007 (after dir.txt line removed) Also Windows Explorer <Properties> reports (5277 files + 730 folders) = 6007 [1] www.7-zip.org [2] http://stackoverflow.com/questions/265769/maximum-filename-length-in-ntfs-w… Now presuming its reasonable for the working directory to have 30 characters, using... histogram := (zip members collect: [ :member | | mySize | mySize := member fileName size. (mySize >=230) ifTrue: [Transcript crShow: mySize printString , '-->' , member fileName printString ]. mySize. ]) asBag. produces... 306-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-TestsMCB.package/MetacelloScriptingStandardTestHarness.class/instance/validateExpectedConfigurationClassName.expectedConfigurationVersion.expectedConfigurationRepository.expectedBaselineClassName.expectedBaselineVersion.expectedBaselineRepository..st' 252-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/createBaseline.for.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 257-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/modifyBaselineVersionIn.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 259-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/class/modifyVersion.section.for.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups..st' 262-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/addSection.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' 265-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/modifySection.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' 278-->'dalehenrich-metacello-work-96e07b1/repository/Metacello-ToolBox.package/MetacelloToolBox.class/instance/modifySection.sectionIndex.repository.requiredProjects.packages.dependencies.includes.files.repositories.preLoadDoIts.postLoadDoIts.supplyingAnswers.groups.versionSpecsDo..st' So... * Are there many users of Smalltalk/git on Windows * What is the design plan for dealing with the long path name? I guess the change to using the unicode functions to get the 32K pathName length would need to happen in the VM. I wonder if instead of Smalltalk-git working with individual files in the file system, it might work directly from the a zip file. It seems git can be configured to accept zip files and unpack them before pushing into its repository [3]. Some benefits of this: * Avoid this problem on Windows * Accessing one stream when loading a from git repository might be faster than accessing many individual files * Git sees one file per method, but users see one file per package. * Git-zip-files might act more like familiar mcz files - that could be copied around the same - or even provide some convergence if an mcz held a file per method rather than a single source.st file. [3] http://tante.cc/2010/06/23/managing-zip-based-file-formats-in-git/ Interested in you thoughts. cheers -ben

2 1

Smalltalk tools: explore failing in 3.0
by phil＠highoctane.be March 9, 2014

March 9, 2014

If I do inspect Smalltalk tools it works. But explore crashes. How is that? Phil

3 4

Roassal3D not working in 3.0
by phil＠highoctane.be March 8, 2014

March 8, 2014

I loaded Roassal3D in Pharo3.0 but... no FormCanvas>>createPath? It looks like createPath moved to AthensCanvas. Are we only going to be able to use AthensCanvas and have no more pure Form bitmap work? Is there a Roassal3D version working on (latest) 3.0? Phil

2 2