December 2017 - Pharo-users

Re: [Pharo-users] SignalR

by Hans N Beck

Hi Ben, At the moment I experimenting with different Shiny like techniques in different environments: python - Tornado, Pharo - Teapot and also SignalR - c#. As far as I know, SignalR uses Websockets including a fall-back mechanism and a so called âhubâ, which calls JS in the client or do some RPC like call of a c# method at the server. But Iâm still learning the details for myself It might be possible to call it from Pharo, but my (long) experience with Microsoft stuff is that they are a little bit in their own world which makes the things tricky. Although, the Microsoft today has a far more open style. Cheers Hans > Am 05.12.2017 um 16:59 schrieb Ben Coman <btc(a)openinworld.com>: > > btw, I found a detailed description of SignalR implementation... > https://blog.3d-logic.com/2015/03/29/signalr-on-the-wire-an-informal-descri… > > cheers -ben > >> On 5 December 2017 at 23:36, Ben Coman <btc(a)openinworld.com> wrote: >> Anyone dealt with SignalR before, can comment on implications for >> access from Pharo? Its originally a Microsoft layer on top of >> Websockets but there also exist Javascript and Python libraries. >> >> https://en.wikipedia.org/wiki/SignalR >> https://www.quora.com/What-is-the-difference-between-web-sockets-and-signalR >> >> cheers -ben >

Dec. 5, 2017

Commander feedback

by Juraj Kubelka

Hi, I like the idea of the Commander library https://github.com/dionisiydk/Commander <https://github.com/dionisiydk/Commander> I am trying to understand how to use it, but I struggle to understand it as documentation includes quiete complex examples: https://ci.inria.fr/pharo-contribution/view/Books/job/PharoBookWorkInProgre… <https://ci.inria.fr/pharo-contribution/view/Books/job/PharoBookWorkInProgre…> I believe that it would be useful to have a tutorial that shows: 1. create a command CmdOne including methods, 2. create a activator ActOne including methods, 3. create a context CtxOne including methods, 4. execute <I do not know what> and you obtain a collection with one item (CmdOne instance?) 5. create command CmdTwo with some methods 6. execute <I do not know what> and you obtain a collection with two items Then next section could describe how to make a UI on top of this. Learning it by exploring Calypso is too complex, because it involves more objects and I actually do not see how to do the previous steps. I will be happy to help with the documentation. My question is: How can I proceed the mentioned steps? Thanks, Juraj

Dec. 5, 2017

Re: [Pharo-users] REST client hints

by Paul DeBruicker

Hi Ben, I've made a few REST Clients http://smalltalkhub.com/#!/~pdebruic/Stripe http://smalltalkhub.com/#!/~pdebruic/Tropo http://smalltalkhub.com/#!/~pdebruic/SegmentIO And the elasticsearch one but its been advanced mostly lately by Sho Yoshida (https://github.com/newapplesho) here https://github.com/newapplesho/elasticsearch-smalltalk He has also made REST clients for Twilio, AWS, SendGrid, Salesforce, and Mixpanel among others. Norbert Hartl made one for Mandrill (Mailchimps transactional email service) http://smalltalkhub.com/#!/~NorbertHartl/Mandrill And Francois Stephany made one for Postmark (another transactional email service) http://smalltalkhub.com/#!/~PharoExtras/Postmark So those are some examples of different approaches. I also started/made a cross platform web client wrapper (just wraps calls to ZnClient or WebClient on Squeak) http://smalltalkhub.com/#!/~pdebruic/HTTPAPIClient But IIRC I only used it in the Stripe API client. Hope this gives you some ideas about how to approach your own solution Paul Ben Coman wrote > I'm just about to write my first client interface to a REST service. > In some respects I understand this is as simple as doing GET responses > using Zinc, > but I'm inquiring about tutorials or libraries that might help. Most > of the stuff turned up by searches is about server-side of REST. > > cheers -ben -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Dec. 5, 2017

Re: [Pharo-users] Behold Pharo: The Modern Smalltalk

by horrido

I've encountered another issue, this time with the macOS download... After I download the zip file, I unzip the file and move the Pharo application to the Applications folder. Then I have to right-click on the Pharo application and select open (double-clicking prevents me from opening the file at all). This last step fails (Pharo crashes), but if I repeat it, it works. Thereafter, I may double-click to open the file anytime. I can't add these instructions to my Pharo Quick Start guide without sounding like an ass. I shall have to wait until all download issues are resolved before I can complete the guide. -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Dec. 5, 2017

Calypso question: adding a context menu item

by Juraj Kubelka

Hi, To implement a context menu item. I have implemented a new class: -=-=-=- CmdCommand subclass: #ClyHelloCommand instanceVariableNames: '' classVariableNames: '' package: 'Calypso-Extensionsâ -=-=-=- with methods: -=-=-=-=- ClyHelloCommand class >> #systemBrowserMenuActivator <commandActivator> ^CmdContextMenuCommandActivator byRootGroupItemFor: ClyVariableSystemBrowserContext ClyHelloCommand >> # defaultMenuItemName ^'Say Helloâ ClyHelloCommand >> # execute self inform: 'Hello' -=-=-=-=- But it does not display in the context menu. I expect it next to âGenerate accessorsâ as I took this command as an example. What do I miss? Thanks, Juraj

Dec. 5, 2017

Re: [Pharo-users] Fuel transfer from Pharo 1.4 to Pharo 6.1

by Sean P. DeNigris

Andreas Brodbeck-3 wrote > --- Searched for some few usages of SortedCollection and made sure, that > there is no sortBlock but only the default sort behaviour. Can't we have Fuel handle the sort block if it's clean? I feel like we discussed this before but can't recall the conclusionâ¦ ----- Cheers, Sean -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Dec. 5, 2017

Re: [Pharo-users] SignalR

by Ben Coman

btw, I found a detailed description of SignalR implementation... https://blog.3d-logic.com/2015/03/29/signalr-on-the-wire-an-informal-descri… cheers -ben On 5 December 2017 at 23:36, Ben Coman <btc(a)openinworld.com> wrote: > Anyone dealt with SignalR before, can comment on implications for > access from Pharo? Its originally a Microsoft layer on top of > Websockets but there also exist Javascript and Python libraries. > > https://en.wikipedia.org/wiki/SignalR > https://www.quora.com/What-is-the-difference-between-web-sockets-and-signalR > > cheers -ben

Dec. 5, 2017

Re: [Pharo-users] Behold Pharo: The Modern Smalltalk

by Marcus Denker

> On 5 Dec 2017, at 16:36, Sven Van Caekenberghe <sven(a)stfx.eu> wrote: > > Hmm, yes, http://files.pharo.org/platform/Pharo6.1-linux.zip seems broken, duh. > > $ curl get.pharo.org | bash > > works fine though. > > It is not possible to offer a single solution for 'Linux' as there are 100s of distributions, package managers, and individual preferences and tastes. That is what GNU/Linux is for. It also assumes you know what you are doing (i.e. understand the command line). > There is this, too: https://pharo.fogbugz.com/f/cases/20799/Update-Linux-Download-instructions I will update the website this week. We need to improve in general the downloadâ¦ so much todo. >> On 5 Dec 2017, at 16:10, horrido <horrido.hobbies(a)gmail.com> wrote: >> >> Then clearly there is something seriously wrong with the Default GNU/Linux >> download. It does not contain a file called 'pharo-ui'. >> >> Moreover, since the Pharo6.1.image file is located in the 'shared' folder, >> you'd have to CD to 'shared' to execute your command. No mention of this >> anywhere! How is a newbie to know??? >> >> Also, there is absolutely no indication that: (a) you need to download a VM; >> and (b) where you can obtain this VM from. All in all, this Linux support is >> quite messed up. It would be safer to remove it completely from pharo.org, >> rather than confusing the hell out of a visitor to pharo.org. >> >> >> >> Stephane Ducasse-3 wrote >>> On Tue, Dec 5, 2017 at 5:49 AM, horrido < >> >>> horrido.hobbies@ >> >>> > wrote: >>>> Understood. I'm working on a Pharo Quick Start guide. If it passes muster >>>> with you guys, you may want to link to it, or incorporate its contents >>>> into >>>> the pharo.org website. >>> >>> Sure let us know. >>> >>> >>>> However, I've stumbled on an odd obstacle: downloading and running the >>>> Default GNU/Linux zip file. According to the Linux installation page, and >>>> I >>>> quote: >>>> >>>> Version 6.1 for several common GNU/Linux configurations. The zip files >>>> contain everything necessary. Just download and run the executable. For >>>> more >>>> download options, see the sections below. >>> >>> ./pharo-ui Pharo61.image & >>>> >>>> I am unable to "run the executable" without further explanation. I'm >>>> guessing that it's missing the Pharo VM, which apparently isn't included >>>> in >>>> the download. >>> >>> Why would it be? >>> >>> >>>> >>>> A newbie looking at this installation page and trying to get started with >>>> Pharo under Linux would be totally confused and frustrated. Hell, *I'm >>>> totally confused and frustrated!* >>> >>> As you see this can be fixed without losing more time on that. >>> >>> >>>> >>>> >>>> >>>> Stephane Ducasse-3 wrote >>>>> Hi >>>>> >>>>> We have a full mooc with 90 videos, we have books. And we are super >>>>> busy. >>>>> You see we cannot do everything. >>>>> >>>>> >>>>> Stef >>>>> >>>>> On Mon, Dec 4, 2017 at 5:15 AM, horrido < >>>> >>>>> horrido.hobbies@ >>>> >>>>> > wrote: >>>>>> Speaking of which, one of my readers said he tried out Pharo recently >>>>>> and >>>>>> found the documentation wanting. He was expecting a Getting Started >>>>>> guide >>>>>> at >>>>>> the pharo.org website and couldn't find one. So he had to blunder >>>>>> around >>>>>> a >>>>>> bit. >>>>>> >>>>>> I told him he could've looked at "Chapter 2: A quick tour of Pharo" in >>>>>> the >>>>>> *Pharo by Example 5* book, but he's right. There ought to be something >>>>>> obvious at the pharo.org website that helps a newbie get Pharo up and >>>>>> running, understand how to basically use the Pharo IDE, and write the >>>>>> standard "Hello World" program. >>>>>> >>>>>> I checked out squeak.org and found the same documentation issue! Why is >>>>>> this??? >>>>>> >>>>>> >>>>>> Offray Vladimir Luna CÃ¡rdenas-2 wrote >>>>>>> Documentation is going well. In fact the stuff that kept me away of >>>>>>> Squeak, despite of its potential was the lack of documentation. "The >>>>>>> artifact is the curriculum" was to powerful but too heavy. You need a >>>>>>> way to understand how to deconstruct and navigate the artifact that is >>>>>>> usually anchored with the culture you have (books and reading) instead >>>>>>> of only launching inspectors os browsing the code. Grafoscopio is my >>>>>>> attempt to fill that gap between the world of objects/simulations and >>>>>>> the world of scripts/documents. >>>>>>> >>>>>>> Cheers, >>>>>>> >>>>>>> Offray >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> >>>>>> -- >>>>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>>>>> >>>> >>>> >>>> >>>> >>>> >>>> -- >>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>>> >> >> >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > >

Dec. 5, 2017

SignalR

by Ben Coman

Anyone dealt with SignalR before, can comment on implications for access from Pharo? Its originally a Microsoft layer on top of Websockets but there also exist Javascript and Python libraries. https://en.wikipedia.org/wiki/SignalR https://www.quora.com/What-is-the-difference-between-web-sockets-and-signalR cheers -ben

Dec. 5, 2017

Re: [Pharo-users] Behold Pharo: The Modern Smalltalk

by Sven Van Caekenberghe

Hmm, yes, http://files.pharo.org/platform/Pharo6.1-linux.zip seems broken, duh. $ curl get.pharo.org | bash works fine though. It is not possible to offer a single solution for 'Linux' as there are 100s of distributions, package managers, and individual preferences and tastes. That is what GNU/Linux is for. It also assumes you know what you are doing (i.e. understand the command line). > On 5 Dec 2017, at 16:10, horrido <horrido.hobbies(a)gmail.com> wrote: > > Then clearly there is something seriously wrong with the Default GNU/Linux > download. It does not contain a file called 'pharo-ui'. > > Moreover, since the Pharo6.1.image file is located in the 'shared' folder, > you'd have to CD to 'shared' to execute your command. No mention of this > anywhere! How is a newbie to know??? > > Also, there is absolutely no indication that: (a) you need to download a VM; > and (b) where you can obtain this VM from. All in all, this Linux support is > quite messed up. It would be safer to remove it completely from pharo.org, > rather than confusing the hell out of a visitor to pharo.org. > > > > Stephane Ducasse-3 wrote >> On Tue, Dec 5, 2017 at 5:49 AM, horrido < > >> horrido.hobbies@ > >> > wrote: >>> Understood. I'm working on a Pharo Quick Start guide. If it passes muster >>> with you guys, you may want to link to it, or incorporate its contents >>> into >>> the pharo.org website. >> >> Sure let us know. >> >> >>> However, I've stumbled on an odd obstacle: downloading and running the >>> Default GNU/Linux zip file. According to the Linux installation page, and >>> I >>> quote: >>> >>> Version 6.1 for several common GNU/Linux configurations. The zip files >>> contain everything necessary. Just download and run the executable. For >>> more >>> download options, see the sections below. >> >> ./pharo-ui Pharo61.image & >>> >>> I am unable to "run the executable" without further explanation. I'm >>> guessing that it's missing the Pharo VM, which apparently isn't included >>> in >>> the download. >> >> Why would it be? >> >> >>> >>> A newbie looking at this installation page and trying to get started with >>> Pharo under Linux would be totally confused and frustrated. Hell, *I'm >>> totally confused and frustrated!* >> >> As you see this can be fixed without losing more time on that. >> >> >>> >>> >>> >>> Stephane Ducasse-3 wrote >>>> Hi >>>> >>>> We have a full mooc with 90 videos, we have books. And we are super >>>> busy. >>>> You see we cannot do everything. >>>> >>>> >>>> Stef >>>> >>>> On Mon, Dec 4, 2017 at 5:15 AM, horrido < >>> >>>> horrido.hobbies@ >>> >>>> > wrote: >>>>> Speaking of which, one of my readers said he tried out Pharo recently >>>>> and >>>>> found the documentation wanting. He was expecting a Getting Started >>>>> guide >>>>> at >>>>> the pharo.org website and couldn't find one. So he had to blunder >>>>> around >>>>> a >>>>> bit. >>>>> >>>>> I told him he could've looked at "Chapter 2: A quick tour of Pharo" in >>>>> the >>>>> *Pharo by Example 5* book, but he's right. There ought to be something >>>>> obvious at the pharo.org website that helps a newbie get Pharo up and >>>>> running, understand how to basically use the Pharo IDE, and write the >>>>> standard "Hello World" program. >>>>> >>>>> I checked out squeak.org and found the same documentation issue! Why is >>>>> this??? >>>>> >>>>> >>>>> Offray Vladimir Luna CÃ¡rdenas-2 wrote >>>>>> Documentation is going well. In fact the stuff that kept me away of >>>>>> Squeak, despite of its potential was the lack of documentation. "The >>>>>> artifact is the curriculum" was to powerful but too heavy. You need a >>>>>> way to understand how to deconstruct and navigate the artifact that is >>>>>> usually anchored with the culture you have (books and reading) instead >>>>>> of only launching inspectors os browsing the code. Grafoscopio is my >>>>>> attempt to fill that gap between the world of objects/simulations and >>>>>> the world of scripts/documents. >>>>>> >>>>>> Cheers, >>>>>> >>>>>> Offray >>>>> >>>>> >>>>> >>>>> >>>>> >>>>> -- >>>>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>>>> >>> >>> >>> >>> >>> >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Dec. 5, 2017