September 2019 - Pharo-users

Re: [Pharo-users] Could not resolve: BaselineOfNeoJSON

by Cyril Ferlicot D.

Le 29/09/2019 Ã 11:23, Davide Varvello via Pharo-users a Ã©critÂ : Hi, NoeJSON seems to be saved with the Tonel format. Tonel is by default in Pharo since Pharo 6.1. It should be possible to update Metacello and Tonel to be able to load this project in Pharo 4+ Here is a pharo-wiki page explaining how to do it: https://github.com/pharo-open-documentation/pharo-wiki/blob/master/General/… Have a nice day! -- Cyril Ferlicot https://ferlicot.fr

Sept. 29, 2019

Re: Could not resolve: BaselineOfNeoJSON

by Davide Varvello

No way to run it on Pharo5? Thx Pharo Smalltalk Users mailing list wrote > Sven, > You are right, I've just downloaded Pharo 7 and everything is fine. The > issue is showing on Pharo 5 (I'm working on it) > Davide -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 29, 2019

Re: [Pharo-users] Workflows and possible usages

by Christopher Fuhrman

On Thu, 26 Sep 2019 at 04:27, Tim Mackinnon <tim(a)testit.works> wrote: > > Anyone have any thoughts or directions to explore? > My contribution is very academic, and not really my field of expertise (we evaluated a BPML/BPMN tool about 10 years ago which I think is dead now). The conference paper from 2016 at https://link.springer.com/chapter/10.1007/978-3-319-42887-1_2 (which is behind a paywall) mentions lots of acronyms for the notations and languages. I put the date of the cited reference for each: - BPMN Business Process Modelling Notation (2013) - CMMN Case Management Modeling and Notation (2014, OMG) - Declare (framework, 2009) - DPIL Declarative Process Intermediate Language (2014) - WRP Workflow Resource Patterns (2005) - Dynamic Condition Response-Graphs (DCR-Graphs, 2013) - EM-BrA2CE (framework, 2008) My intuition says that most software projects don't last long enough to invest in a general solution to supporting workflows.

Sept. 27, 2019

Re: [Pharo-users] Microsoft COM

by eftomi

Hi Pablo, Before doing Invoke() in COMDispatchInstance>>#dispatch, the array of parameters for a COM method call is currently prepared under the assumption that the parameter types reported by COM for a particular method should be used directly, i. e. if a COM method reports VT_BSTR as its parameter type, then the parameter value is prepared as VT_BSTR. This is implemented in COMMethod>>#fillArguments:byTypeOn:. The fact is that this is not always a one-to-one association. For instance, if a method reports VT_VARIANT as a parameter type, other variant types could also be send, not just VT_VARIANT, but VT_BSTR, VT_I4, ..., too. It's the responsibility of the server to do the conversion and report a problem if the conversion is not possible (for instance, converting a string '42' to integer 42 works). Many COM objects implementations report "vague" parameter types, like the VT_VARIANT that I mentioned, VT_USERDEFINED etc, and the fact is that the server on the other side is usually quite forgiving. So, the actual parameter value and its type that is prepared before the dispatch could depend also from the data on the client side - my point is that if the COM server is really expecting an integer number but is reporting VT_VARIANT, you can send to it the string '42' as VT_BSTR or integer 42 as VT_I4 or integer 42 as VT_I2 etc. My question is whether you had any plans to implement this behaviour, and if yes, how? Of course, one thing is sending parameter values as a client, but if we think about exposing Pharo classes through COM this should be carefully planned for. A mapping between Pharo variant type classes and VT classes is now prepared in TypeMapping class variable of Win32Variant. Maybe we also need a mapping between Pharo/ST types from Magnitude, String and other class families to COM VT types. Anyway, I'm progressing well and various calls to ADODB's objects are working - of course as a prototype :-) Best wishes, Tomaz -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 27, 2019

Re: Could not resolve: BaselineOfNeoJSON

by Davide Varvello

Sven, You are right, I've just downloaded Pharo 7 and everything is fine. The issue is showing on Pharo 5 (I'm working on it) Davide Sven Van Caekenberghe-2 wrote > Davide, > > I don't know what you are doing, exactly. > > If I download a fresh Pharo 7.0.4 (64bit on macOS), and I execute the > expression > > Metacello new > repository: 'github://svenvc/NeoJSON/repository'; > baseline: 'NeoJSON'; > load. > > it loads as expected, with the following in the Transcript > > Fetched -> BaselineOfNeoJSON-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Loaded -> BaselineOfNeoJSON-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Loading baseline of BaselineOfNeoJSON... > Fetched -> Neo-JSON-Core-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Fetched -> Neo-JSON-Tests-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Fetched -> Neo-JSON-Pharo-Core-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Fetched -> Neo-JSON-Pharo-Tests-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- > git@ > :svenvc/NeoJSON.git[master] > Loaded -> Neo-JSON-Core-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- cache > Loaded -> Neo-JSON-Tests-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- cache > Loaded -> Neo-JSON-Pharo-Core-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- cache > Loaded -> Neo-JSON-Pharo-Tests-CompatibleUserName.1551110229 --- > git@ > :svenvc/NeoJSON.git[master] --- cache > ...finished baseline > > And all NeoJSON tests are green. > > Sven > >> On 27 Sep 2019, at 14:57, Davide Varvello via Pharo-users < > pharo-users@.pharo > > wrote: >> >> >> From: Davide Varvello < > varvello@ > > >> Subject: Re: Could not resolve: BaselineOfNeoJSON >> Date: 27 September 2019 at 14:57:33 GMT+2 >> To: > pharo-users@.pharo >> >> >> Hi Sven, >> I don't quite understand. At https://github.com/svenvc/NeoJSON it shows >> "to >> load NeoJSON using Metacello" >> Metacello new >> repository: 'github://svenvc/NeoJSON/repository'; >> baseline: 'NeoJSON'; >> load. >> >> That's the step I did and I suppose it was enough. I don't know the >> meaning >> of the next line and : >> spec baseline: 'NeoJSON' with: [ spec repository: >> 'github://svenvc/NeoJSON/repository' ]. >> >> Any hints? >> Thanks >> >> >> Sven Van Caekenberghe-2 wrote >>> When loading from Git(Hub) you have to use BaselineOf... >>> >>> Installation instructions at https://github.com/svenvc/NeoJSON >>> >>>> On 27 Sep 2019, at 11:54, Davide Varvello via Pharo-users < >> >>> pharo-users@.pharo >> >>> > wrote: >>>> >>>> >>>> From: Davide Varvello < >> >>> varvello@ >> >>> > >>>> Subject: Could not resolve: BaselineOfNeoJSON >>>> Date: 27 September 2019 at 11:54:03 GMT+2 >>>> To: >> >>> pharo-users@.pharo >> >>>> >>>> >>>> Hi Guys, >>>> >>>> The evaluation of >>>> Metacello new >>>> repository: 'github://svenvc/NeoJSON/repository'; >>>> baseline: 'NeoJSON'; >>>> load. >>>> >>>> returns: Could not resolve: BaselineOfNeoJSON [BaselineOfNeoJSON] in >>>> /Users/myName/Development/MyProject/package-cache >>>> github://svenvc/NeoJSON:master/repository >>>> >>>> Can you help me, please? >>>> Thanks >>>> >>>> >>>> >>>> -- >>>> 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

Sept. 27, 2019

Re: [Pharo-users] Could not resolve: BaselineOfNeoJSON

by Sven Van Caekenberghe

Davide, I don't know what you are doing, exactly. If I download a fresh Pharo 7.0.4 (64bit on macOS), and I execute the expression Metacello new repository: 'github://svenvc/NeoJSON/repository'; baseline: 'NeoJSON'; load. it loads as expected, with the following in the Transcript Fetched -> BaselineOfNeoJSON-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Loaded -> BaselineOfNeoJSON-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Loading baseline of BaselineOfNeoJSON... Fetched -> Neo-JSON-Core-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Fetched -> Neo-JSON-Tests-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Fetched -> Neo-JSON-Pharo-Core-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Fetched -> Neo-JSON-Pharo-Tests-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- git@github.com:svenvc/NeoJSON.git[master] Loaded -> Neo-JSON-Core-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- cache Loaded -> Neo-JSON-Tests-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- cache Loaded -> Neo-JSON-Pharo-Core-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- cache Loaded -> Neo-JSON-Pharo-Tests-CompatibleUserName.1551110229 --- git@github.com:svenvc/NeoJSON.git[master] --- cache ...finished baseline And all NeoJSON tests are green. Sven > On 27 Sep 2019, at 14:57, Davide Varvello via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Davide Varvello <varvello(a)yahoo.com> > Subject: Re: Could not resolve: BaselineOfNeoJSON > Date: 27 September 2019 at 14:57:33 GMT+2 > To: pharo-users(a)lists.pharo.org > > > Hi Sven, > I don't quite understand. At https://github.com/svenvc/NeoJSON it shows "to > load NeoJSON using Metacello" > Metacello new > repository: 'github://svenvc/NeoJSON/repository'; > baseline: 'NeoJSON'; > load. > > That's the step I did and I suppose it was enough. I don't know the meaning > of the next line and : > spec baseline: 'NeoJSON' with: [ spec repository: > 'github://svenvc/NeoJSON/repository' ]. > > Any hints? > Thanks > > > Sven Van Caekenberghe-2 wrote >> When loading from Git(Hub) you have to use BaselineOf... >> >> Installation instructions at https://github.com/svenvc/NeoJSON >> >>> On 27 Sep 2019, at 11:54, Davide Varvello via Pharo-users < > >> pharo-users@.pharo > >> > wrote: >>> >>> >>> From: Davide Varvello < > >> varvello@ > >> > >>> Subject: Could not resolve: BaselineOfNeoJSON >>> Date: 27 September 2019 at 11:54:03 GMT+2 >>> To: > >> pharo-users@.pharo > >>> >>> >>> Hi Guys, >>> >>> The evaluation of >>> Metacello new >>> repository: 'github://svenvc/NeoJSON/repository'; >>> baseline: 'NeoJSON'; >>> load. >>> >>> returns: Could not resolve: BaselineOfNeoJSON [BaselineOfNeoJSON] in >>> /Users/myName/Development/MyProject/package-cache >>> github://svenvc/NeoJSON:master/repository >>> >>> Can you help me, please? >>> Thanks >>> >>> >>> >>> -- >>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >>> >>> >>> > > > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 27, 2019

Re: Could not resolve: BaselineOfNeoJSON

by Davide Varvello

Hi Sven, I don't quite understand. At https://github.com/svenvc/NeoJSON it shows "to load NeoJSON using Metacello" Metacello new repository: 'github://svenvc/NeoJSON/repository'; baseline: 'NeoJSON'; load. That's the step I did and I suppose it was enough. I don't know the meaning of the next line and : spec baseline: 'NeoJSON' with: [ spec repository: 'github://svenvc/NeoJSON/repository' ]. Any hints? Thanks Sven Van Caekenberghe-2 wrote > When loading from Git(Hub) you have to use BaselineOf... > > Installation instructions at https://github.com/svenvc/NeoJSON > >> On 27 Sep 2019, at 11:54, Davide Varvello via Pharo-users < > pharo-users@.pharo > > wrote: >> >> >> From: Davide Varvello < > varvello@ > > >> Subject: Could not resolve: BaselineOfNeoJSON >> Date: 27 September 2019 at 11:54:03 GMT+2 >> To: > pharo-users@.pharo >> >> >> Hi Guys, >> >> The evaluation of >> Metacello new >> repository: 'github://svenvc/NeoJSON/repository'; >> baseline: 'NeoJSON'; >> load. >> >> returns: Could not resolve: BaselineOfNeoJSON [BaselineOfNeoJSON] in >> /Users/myName/Development/MyProject/package-cache >> github://svenvc/NeoJSON:master/repository >> >> Can you help me, please? >> Thanks >> >> >> >> -- >> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html >> >> >> -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 27, 2019

Re: [Pharo-users] Workflows and possible usages

by Norbert Hartl

> Am 27.09.2019 um 10:10 schrieb Tim Mackinnon <tim(a)testit.works>: > > If this does become of interest to anyone, I had a quick look at the workflow landscape in Pharo and found it rather unfathomable - Netsyle seems very comprehensive but complicated and lacking syntactic sugar to make it easy to just pick up and run with. Itâs reified up the hilt, so simple stuff seems to need lots of code, which the examples emphasise. > > NewWave has a great readme.md, so quickly got some initial concepts but itâs very work in progress and key base classes have no documentation so itâs not easy to understand what does what for more detailed things (Sebastijan did respond quickly to some questions, so hope to see it continue to improve). It looked promising but it seems to want to âown the flowâ and run everything, so my Teapot endpoints couldnât easily get the next workflow from the engine - the engine wanted to push things to me (I messed with a semaphore to try and sync things, but decided itâs ethos was just different - I think the netstyle engine would let me pull, but didnât get that far with it). > > There was a gemstone workflow engine - itâs not ported, it looked interesting but used a Windows bpml tool and again wasnât sure if it wanted to own the world, and porting it would be more than I wanted to do. > > After an hour, I went with my own domain model and some condition blocks to just get something going. Teapot and NeoJsonWriter really let you prototype quickly! Had something in 15 mins to let me mull over the problem. > Thatâs where most âworkflow enginesâ start _and_ end ;) Workflow engines are simple if the flow is simple. Most people come up with a simple sequence of tasks. To do it properly with all the fork and join possibilities is not that easy. I think the Netstyle engine is kind of ok but never got past the point where seaside dependencies and Omnibase dependencies were properly refactored to be independent of its roots. NewWave is the new trial. We are talking with the guys to help build a decent machine. At ESUG we talked more than an hour about approaches. The last thing we acknowledged was to create a mailing list for it to make the discussion more public. Stef wanted it to happen on this list but I think a dedicated one would be better. So we are trying to find a place for the list. Marcus, I think we got stuck in the process finding a proper mailing list provider, right? Norbert > Tim > > Sent from my iPhone > >> On 26 Sep 2019, at 09:12, Tim Mackinnon <tim(a)testit.works> wrote: >> >> Hi everyone, in my day job I encountered an interesting domain problem that a previous java team has made a bit of a hash of ... >> >> I thought it might be interesting to model it in Pharo to help explain it better to a new team and I was interested in community thoughts as we have some of the best thinkers on tap. >> >> The scenario is that a user is presented with several input fields to apply for a loan , one of them is Amount and another the type of loan (cash, invoice, machinery etc). >> >> Depending on these answers, they are next presented with different questions - if the amount > 100k there are some high value questions, if the loan type is machinery there are some more additional questions on the type of machine etc. This progresses to a third form and potentially a 4th and 5th. >> >> So itâs effectively a decision tree, that rules out different loan types. >> >> The UI is a React web form, and Iâve suggested to the team to do some experiments with a dynamic UI that interprets a Json payload that describes the questions, so itâs really about how to model the questions and then render them out in this Json format. >> >> I was wondering if this was a typical workflow problem (and whether the netstyle engine was appropriate or wasnât there some other ones announced recently too?) >> >> Iâve never used a workflow engine - But it sounds a bit like the problem above? Or not? >> >> Alternatively, I was thinking I could model groups of questions into a Decision, and then have a DecisionJourney of Decisions. Each decision could have some match and dependency criteria - e.g. some sort of matcher block eg [:d | d amount > 100 & d type = #machinery] and then some method to add questions to a DecisionForm on a match which would then render the Json payload. >> >> But I wondered if workflow engines just do this, and they might handle extra stuff for free. >> >> Anyone have any thoughts or directions to explore? >> >> Tim >> >> Sent from my iPhone >> > >

Sept. 27, 2019

Re: [Pharo-users] Could not resolve: BaselineOfNeoJSON

by Sven Van Caekenberghe

When loading from Git(Hub) you have to use BaselineOf... Installation instructions at https://github.com/svenvc/NeoJSON > On 27 Sep 2019, at 11:54, Davide Varvello via Pharo-users <pharo-users(a)lists.pharo.org> wrote: > > > From: Davide Varvello <varvello(a)yahoo.com> > Subject: Could not resolve: BaselineOfNeoJSON > Date: 27 September 2019 at 11:54:03 GMT+2 > To: pharo-users(a)lists.pharo.org > > > Hi Guys, > > The evaluation of > Metacello new > repository: 'github://svenvc/NeoJSON/repository'; > baseline: 'NeoJSON'; > load. > > returns: Could not resolve: BaselineOfNeoJSON [BaselineOfNeoJSON] in > /Users/myName/Development/MyProject/package-cache > github://svenvc/NeoJSON:master/repository > > Can you help me, please? > Thanks > > > > -- > Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html > > >

Sept. 27, 2019

Could not resolve: BaselineOfNeoJSON

by Davide Varvello

Hi Guys, The evaluation of Metacello new repository: 'github://svenvc/NeoJSON/repository'; baseline: 'NeoJSON'; load. returns: Could not resolve: BaselineOfNeoJSON [BaselineOfNeoJSON] in /Users/myName/Development/MyProject/package-cache github://svenvc/NeoJSON:master/repository Can you help me, please? Thanks -- Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

Sept. 27, 2019