December 2017 - Pharo-users

Pharo 6.1 / 7, 0 Glorp smalltalkhub to github migration
by Alistair Grant Dec. 12, 2017

Dec. 12, 2017

Hi Everyone, I've migrated Glorp v130, including GlorpSQLite, from smalltalkhub to github using Peter Uhnak's excellent git-migration tool, see: https://github.com/akgrant43/Glorp To load Glorp: Metacello new repository: 'github://akgrant43/Glorp/src'; baseline: 'Glorp'; load. To load Glorp with the UDBC SQLite drivers: Metacello new repository: 'github://akgrant43/Glorp/src'; baseline: 'GlorpSQLite'; load. I'm not familiar with the other drivers, so I'm happy to help, but would like some assistance before migrating the other drivers. If I don't hear any complaints in the next week I'll eventually get around to modifying the ConfigurationOfGlorp on smalltalkhub to use the github version for Pharo 6.1 and 7.0. Older versions of Pharo will continue to load Glorp from smalltalkhub. If there's an official account that should own this project, I'm more than happy to hand it over. Cheers, Alistair

3 6

Why do downloads not use HTTPS by default?
by Silent Walls Dec. 12, 2017

Dec. 12, 2017

Today I visited https://pharo.org/gnu-linux-installation-64 to download the zip file containing the executable. To my surprise, the download is not carried out over HTTPS. The download link is http://files.pharo.org/platform/Pharo6.1-64-linux.zip. I ended up downloading the zip file using https://files.pharo.org/platform/Pharo6.1-64-linux.zip. The point is: if HTTPS downloads are supported, why is it not the default on the download pages of the Pharo website?

4 7

[TechTalk] Topics Wanted for 2018!
by Marcus Denker Dec. 12, 2017

Dec. 12, 2017

Hi, As you know, we are trying to have one Pharo tech-talk per month. The idea is to use this for -> mini âLecturesâ -> Demos of interesting Projects -> Just some interesting topic to discuss with audio chat on Discord You can see the past topics here: http://pharo.org/TechTalk <http://pharo.org/TechTalk> We will soon define the dates for the first half of 2018. If you want to do a techtalk yourself (give a presentation / Demo or moderate a discussion), feel free to contact me! You are able to pick a date that works best for you. Marcus

2 4

P3 timeout
by Pierce Ng Dec. 12, 2017

Dec. 12, 2017

Hi Sven and all, I have a PostgreSQL database running in a resource-light Linux VM with ~4 million rows consisting of mostly text. My query executes regexp_matches() on the text and it runs noticeably slowly. I am encountering ConnectionTimedOut using P3 to run my query. PostgresV2 and Python's pg8000 do work though. I see that PostgresV2's PGConnection uses "Socket standardTimeout". I changed ZdcSimpleSocketStream class-side's #openConnectionToHostNamed:port: bottom part to add the same timeout because P3Client>>open calls it: ZdcSimpleSocketStream class>>openConnectionToHostNamed: hostName port: portNumber [...] ^ socketStream timeout: Socket standardTimeOut; "<== added this line" connectTo: hostIP port: portNumber; yourself Now my query returns instead of timing out. It does look like ZdcSimpleSocketStream's three class-side methods could use some refactoring love. Pierce

4 10

OSProcess lock image
by Hilaire Dec. 12, 2017

Dec. 12, 2017

Hello, On Pharo4, when I type the command: OSProcess waitForCommand: 'ls' it locks the image, I can get back control with [Alt]-. With the same image and VM, this command was previously working, even called from a Seaside component. Any idea? Thanks Hilaire -- Dr. Geo http://drgeo.eu

4 4

Package Discoverability
by Evan Donahue Dec. 11, 2017

Dec. 11, 2017

Hello, I was wondering what the current story was for releasing packages so that they can be discovered. I'm trying to get into the habit of finishing and releasing all those 90% complete projects lying around, and so I wanted to know what the standard process should be for releasing a package of general interest. Especially now that iceberg is a thing, should I make a smalltalkhub page too just for people to search for? Should I submit it to the pharo catalog? Send a note to the mailing list? Any other best practices? Thanks, Evan

3 2

Using a TreePresenter
by Prof. Andrew P. Black Dec. 10, 2017

Dec. 10, 2017

I'm trying to use a (subclass of a) TreePresenter that is populated with FileReferences. I see that the current selection is, reasonably enough, a TreeNodePresenter, so I'm assuming that to set a selection programatically, I'm going to have to find the right TreeNodePresenter. So I've assumed a method allItemsDo: that I'm trying to write on my subclass of TreePresenter that will iterate through all of the TreeNodes and let me do stuff, such as looking at their #content to see if this is a node that I'm interested in. But I can't! The #roots method of TreePresenter doesn't give me the root TreeNodePresenters; it gives me the file references that they contain. How do I iterate over the TreeNodePresenters? Or am I going about this in entirely the wrong way? Andrew

2 1

HTTP request question for an arango driver
by Yann Lesage Dec. 10, 2017

Dec. 10, 2017

Hello, I write an driver for Arangodb . So like it's indicated in Arango documentation, I use the HTTP API.Â The repo is https://github.com/Valtena/Pharango Now, the problem : Arango using Znclient make around 1 000 requests/second. And the question : Are there any recommended pratice to have the better performance with ZNClient or a better way to perform lot of HTTP requests ? Thanks for your attention, Yann Lesage

5 11

FYI about Pharo MOOC
by horrido Dec. 10, 2017

Dec. 10, 2017

Somebody posted this about the Pharo MOOC: https://medium.com/@josephshirk/it-would-be-nice-if-it-were-in-english-b07f… To which I responded: https://medium.com/@richardeng/the-videos-are-like-lecturers-in-university-… Some food for thought. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

11 27

KeyNotFound: key #nil not found in SystemDicitonary
by Seth Dec. 10, 2017

Dec. 10, 2017

So, I've been trying to save and close my image for a while now. It won't even just close without saving, it constantly pops up the error from this subject. I'm fairly new to all this, but I followed it to I think an Array of ClassSessionHandlers one of which is ClassSessionHandlers(nil) but I don't know how to get rid of it, I also opened the process browser and found a Morphic UI Process: nil which i tried to terminate. None of which seems to work. How to I get this nil value out of my image save / shutdown process? -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

2 3