August 2020 - Pharo-users - lists.pharo.org

Getting rid of .sources file for deployment
by Esteban Maringolo Sept. 7, 2020

Sept. 7, 2020

Hi, Is there a way to get rid the .sources file in a deployment scenario? I followed this guide [1], but I cannot get rid of the .sources files, because I'm using PharoADO (which uses PharoCOM) and it uses some reflection for FFI and for some reason that implies using the .sources file. I installed the FFICompilerPlugin as per the instructions, but I don't have a way to tell whether I did in the right place/moment, nor how to assess its proper installation. If such [2] .sources file cannot be removed, what is the criteria for the lookup, can it be renamed or modified via some parameter/config? Thanks! [1] https://github.com/pharo-open-documentation/pharo-wiki/blob/master/General/… [2] Pharo8.0-32bit-0932da8.sources in my case Esteban A. Maringolo

6 23

Re: [Pharo-users] mentoring continued I hope
by Richard Sargent Sept. 2, 2020

Sept. 2, 2020

On Sun, Aug 30, 2020 at 10:04 PM Roelof Wobben via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hello, > > I have this challenge from exercism : > https://github.com/exercism/pharo-smalltalk/tree/master/exercises/clock > > and this function is given : > > hour: anInteger minute: anInteger2 > self shouldBeImplemented > > > Schould I make it on this class method work that the minutes will not > exceed the 59 minutes > So when for example when 70 min are given so hour:0 minute:70 it will > be converted to hour: 1 minutes: 10 > I would argue against that approach. Make it a requirement that a given API must be used with correct values. e.g. #hours:minutes: requires hours between 00 and 23 and minutes between 00 and 59. If you want to convert equivalent time values, use a specific API. For example, many time implementations publicly define a seconds-based API, such as Time class>>#fromSeconds:. You can do the same with your implementation with a class-side #fromMinutes: method. (The corresponding instance methods would be #asSeconds and #asMinutes or something similar.) or can I better do this on the instance side. > > Regards, > > Roelof > > >

2 1

mentoring contined I hope
by Roelof Wobben Aug. 31, 2020

Aug. 31, 2020

2 1

Re: [Pharo-users] Image crashed, how can I restore the Playground?
by Offray Vladimir Luna CÃ¡rdenas Aug. 31, 2020

Aug. 31, 2020

Hi Davide, You can use Grafoscopio[1] to store and structure your playgrounds as an interactive notebook. [1] https://mutabit.com/grafoscopio/en.html Your notebooks can combine prose and be exported to other formats (Markdown, HTML and PDF). Also, you can use your preferred source control system to store the notebooks. For example, I use Grafoscopio notebooks and Fossil[2] repositories to make workshop interactive notes. [2] https://fossil-scm.org/ I'm still debugging an annoying issue with keystroke capturing in playgrounds. But Grafoscopio notebooks has been a good bridge between coding and scripting for our local community and a great help in workshops. Hope that helps, Offray On 26/08/20 2:33 p.Â m., Davide Varvello via Pharo-users wrote: > Thanks StÃ©ph, > I guess the right directory is {imageDirectory}/pharo-local/play-cache/ > there are some .ph files representing several playgrounds. > > One further question: it seems to me there isn't a history of the > playground, right? So if I make multiple changes to a single playground, > they are lost. > > Cheers > Davide

3 3

mentoring continued I hope
by Roelof Wobben Aug. 31, 2020

Aug. 31, 2020

Hello, I have this challenge from exercism : https://github.com/exercism/pharo-smalltalk/tree/master/exercises/clock and this function is given : hour: anInteger minute: anInteger2 Â Â Â self shouldBeImplemented Schould I make it on this class method work that the minutes will not exceed the 59 minutes So when for example when 70 min are given so hour:0Â minute:70 it will be converted to hour: 1 minutes: 10 or can I better do this on the instance side. Regards, Roelof

1 0

PostgresV2 Driver available?
by Esteban Maringolo Aug. 30, 2020

Aug. 30, 2020

Hi, Is anybody using the "old" PostgresV2 driver in Pharo 8? I just checked in the pharo-rdbms/garage repository and of course everything is very old there. But I'm having a few issues with P3 that I didn't have before (with the PgV2) and I want to be test whether there is something related with the connection or the problem lies somewhere else. Regards! Esteban A. Maringolo

3 3

[Ann] Workshop: IndieWeb with pocket infrastructures
by Offray Vladimir Luna CÃ¡rdenas Aug. 30, 2020

Aug. 30, 2020

Hi all, Due to the confinement in the pandemic, our forms of telepresence become more important and many suddenly got even more immersed into an Oligopoly cyberspace (Zoom, Google, Facebook, Twitter, Apple, Amazon, Microsoft, etc) with opaque algorithms that under extractive logic commodify our privacy and communications, try to condition our attention and habits, as well as to shape our current and future behavior. But this is not the only way to inhabit cyberspace. >From the Grafoscopio community[1], we would like to invite you to a series of workshops that we are doing to make visible other ways of populating and building the web, aligned with the movements of IndieWeb[1a], from what we have called "pocket infrastructures". You can find more information about these topics in [2] and in particular about the workshops in [3] (in Spanish). [1] https://mutabit.com/grafoscopio/en.html [1a] https://indieweb.org/ [2] https://mutabit.com/repos.fossil/indieweb/ [3] https://mutabit.com/repos.fossil/indieweb/doc/trunk/docs/es/index.html#tall… The second workshop will be tomorrow, Saturday, Aug. 29 from 3:15 PM to 7:15PM CO (GMT - 5) -- I will try to share the other workshops earlier, but the site in [2] will be the consolidated memory of them, for those who want to join us asynchronously. We will see how IndieWeb sites help us to untangle and reweave that other web and how this help us to reconnect in this stranger times. Rethinking the infrastructure is also to rethink the ways in which it enables and makes visible (or not) certain ways of being and acting. Infrastructures are embodied discourses. So thank you in advance for joining us in rethinking this in practice. Of course, Pharo is behind scenes, as usual, powering this experience. But with these IndieWeb workshops I think we have found a sweet spot that puts coding in front with a practical introduction and motivation beyond the kind of boring "Hello World". Following a "local first" approach, documentation will be in Spanish, but source code[5] and interactive documentation will be in English to bridge our worlds :-), [4] https://mutabit.com/offray/blog/en/entry/dumb-hello-world [5] https://mutabit.com/repos.fossil/brea/ See you on cyberspace, Offray

3 3

Re: [Pharo-users] Question ZnClient with file
by Sven Van Caekenberghe Aug. 30, 2020

Aug. 30, 2020

> On 30 Aug 2020, at 18:05, Sabine Manaa <manaa.sabine(a)gmail.com> wrote: > > Hi Sven, > > thanks a lot for your answer! I was already replying 3 hours ago but my answer did not pass the mailing list. > > Perhaps you can answer this mail for the mailing list again: > > I was writing: > > Hi Sven, > you see me here very happy here. > It is much simpler as I was thinking. Just: > > ^ ZnClient new > url: > 'https://my.sevdesk.de/api/v1/Voucher/Factory/uploadTempFile?token=32695d076…'; > addPart: > (ZnMimePart > fieldName: 'file' > fileNamed: '/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg'); > post > > With this, it succeeds with the upload. Great. In production you should also check whether the upload succeeded. One way to do this is by using #enforceHttpSuccess - this will signal an exception unless the host returned a 200 or similar code (assuming the receiving host acts like this). > ... > > Please allow me to ask one more question: > > My situation in my application is, that I do not have the file local as in the example but in amazon S3 and I have a url like this: > > https://s3.eu-central-1.amazonaws.com/spf-belege-dev/K1000137/201905061113-… > > My question is: Is it possible to NOT download this file to my server for then sending it with filename and path to the other system but setting this url directly in the ZnClient? > For the other system it has to be like a file upload... > This would save transfer costs and time. I understand, but unless the host supports this, there is not much you can do. The data has to be transferred, if they are not willing to fetch it from some URL, you will have to do the copying. If the files are not too large, you can take them temporarily in memory if you want (so that you do not have to create a temp file). See ZnImageExampleDelegateTest and how #testUpload uses #image there. It probably would also work with a ZnStreamingEntity (so that not everything has to be in memory at the same time, just the buffer to do stream copying), but that might require some more experimenting. > Regards > Sabine > > > Sabine > > Am So., 30. Aug. 2020 um 14:48 Uhr schrieb Sabine Manaa <manaa.sabine(a)gmail.com>: > Hi Sven, > > you see me here very happy here. > > It is much simpler as I was thinking. Just: > > ^ ZnClient new > url: > 'https://my.sevdesk.de/api/v1/Voucher/Factory/uploadTempFile?token=32695d076…'; > addPart: > (ZnMimePart > fieldName: 'file' > fileNamed: '/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg'); > post > > succeeds with the upload. > > Thank you very very much! > I write this in discord, too. > > Sabine > > Am So., 30. Aug. 2020 um 14:03 Uhr schrieb Sven Van Caekenberghe-2 [via Smalltalk] <ml+s1294792n5121057h62(a)n4.nabble.com>: > Hi, > > CC'ing the Pharo Users ML since that gives a permanent record of my answer. > > File uploads using ZnClient do work in the common case. You can check ZnServerTest>>#testFormTest3 or ZnImageExampleDelegateTest>>#testUpload as well as several other senders of #addPart: > > First you are mixing 2 types of forms (see https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… section 6. Submitting HTML Forms). > > For a file upload you need a ZnMultiPartFormDataEntity which is configured automatically in ZnClient by #multiPartFormDataEntity when you do #addPart: (no need to set a content type). > > Next you are mixing the file name and the file contents. It is best to use the class side ZnMimePart instance creation methods, either #fieldName:fileName:entity: or #fieldName:fileNamed: > > Also, when you create a ZnByteArray entity with the contents of a .jpg or .png you not only have to load the actual bytes (obviously), but you also have to set the mime type correctly. In #fieldName:fileNamed: you can see how this is done by using the file extension, but that is just one way to do it, if you know the type upfront, just set it. > > There is also ZnClient>>#uploadEntityFrom: (used by #testUploadSmallDocument) but that is not using a form. > > I am sure you will be able to figure it out, if not just ask. > > Sven > > > On 30 Aug 2020, at 09:51, Sabine Manaa <[hidden email]> wrote: > > > > Hi Sven, > > > > I hope you are well this serious times! > > > > I have a problem with ZnClient. I was asking yesterday in Discord but > > we did not find a solution. > > > > https://discordapp.com/channels/223421264751099906/223421264751099906/74931… > > > > I write a summary here: > > > > I have this command, which works fine on the command line: > > > > curl -X POST "https://my.sevdesk.de/api/v1/Voucher/Factory/uploadTempFile?token=32695d076…" > > -H "accept: application/xml" -H "Content-Type: multipart/form-data" -F > > "file=@/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg;type=image/jpeg" > > > > Now, I want to "translate" this in a ZnClient command, but I do not > > get it. my command is: > > > > ^ ZnClient new > > systemPolicy; > > https; > > accept: ZnMimeType applicationXml; > > headerAt: 'Content-Type' add: 'multipart/form-data'; > > host: 'my.sevdesk.de'; > > path: '/api/v1/Voucher/Factory/uploadTempFile?token=32695d076245b124b0faaa56afc71b74'; > > ifFail: [ :exception | exception response entity inspect ]; > > formAt: 'file' put: > > '@/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg'; > > formAt: 'type' put: 'image/jpeg'; > > post > > > > There must be a difference between the command line and the ZnClient > > command because with the ZnClient command, I get this error: > > {"objects":null,"error":{"message":"Uploaded file is not inside the > > allowed directory","code":null,"data":null}}. > > > > I was also trying to get the command line from the ZnClient instance > > with the method curl but that gives me this: > > > > echo 66696c653d402f55736572732f736162696e652f4465736b746f702f62656c6567652f6e6575655f62656c6567652f6d63646f6e616c64732e6a70656726747970653d696d6167652f6a706567 > > | xxd -r -p | curl -X POST > > https://my.sevdesk.de:443/api/v1/Voucher/Factory/uploadTempFile?token=32695… > > -H"User-Agent:Zinc HTTP Components 1.0 (Pharo/7.0)" > > -H"Accept:application/xml" > > -H"Content-Type:application/x-www-form-urlencoded" > > -H"Host:my.sevdesk.de" -H"Content-Length:77" --data-binary @- > > > > Would be very nice if you could help me. All I want ist to "translate" > > the above curl command in a corresponding ZnClient command.... > > > > Regards > > Sabine > > > > > If you reply to this email, your message will be added to the discussion below: > http://forum.world.st/Re-Question-ZnClient-with-file-tp5121057.html > To start a new topic under Pharo Smalltalk Users, email ml+s1294792n1310670h65(a)n4.nabble.com > To unsubscribe from Pharo Smalltalk Users, click here. > NAML

1 0

Re: [Pharo-users] Question ZnClient with file
by Sven Van Caekenberghe Aug. 30, 2020

Aug. 30, 2020

Hi, CC'ing the Pharo Users ML since that gives a permanent record of my answer. File uploads using ZnClient do work in the common case. You can check ZnServerTest>>#testFormTest3 or ZnImageExampleDelegateTest>>#testUpload as well as several other senders of #addPart: First you are mixing 2 types of forms (see https://ci.inria.fr/pharo-contribution/job/EnterprisePharoBook/lastSuccessf… section 6. Submitting HTML Forms). For a file upload you need a ZnMultiPartFormDataEntity which is configured automatically in ZnClient by #multiPartFormDataEntity when you do #addPart: (no need to set a content type). Next you are mixing the file name and the file contents. It is best to use the class side ZnMimePart instance creation methods, either #fieldName:fileName:entity: or #fieldName:fileNamed: Also, when you create a ZnByteArray entity with the contents of a .jpg or .png you not only have to load the actual bytes (obviously), but you also have to set the mime type correctly. In #fieldName:fileNamed: you can see how this is done by using the file extension, but that is just one way to do it, if you know the type upfront, just set it. There is also ZnClient>>#uploadEntityFrom: (used by #testUploadSmallDocument) but that is not using a form. I am sure you will be able to figure it out, if not just ask. Sven > On 30 Aug 2020, at 09:51, Sabine Manaa <manaa.sabine(a)gmail.com> wrote: > > Hi Sven, > > I hope you are well this serious times! > > I have a problem with ZnClient. I was asking yesterday in Discord but > we did not find a solution. > > https://discordapp.com/channels/223421264751099906/223421264751099906/74931… > > I write a summary here: > > I have this command, which works fine on the command line: > > curl -X POST "https://my.sevdesk.de/api/v1/Voucher/Factory/uploadTempFile?token=32695d076…" > -H "accept: application/xml" -H "Content-Type: multipart/form-data" -F > "file=@/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg;type=image/jpeg" > > Now, I want to "translate" this in a ZnClient command, but I do not > get it. my command is: > > ^ ZnClient new > systemPolicy; > https; > accept: ZnMimeType applicationXml; > headerAt: 'Content-Type' add: 'multipart/form-data'; > host: 'my.sevdesk.de'; > path: '/api/v1/Voucher/Factory/uploadTempFile?token=32695d076245b124b0faaa56afc71b74'; > ifFail: [ :exception | exception response entity inspect ]; > formAt: 'file' put: > '@/Users/sabine/Desktop/belege/neue_belege/mcdonalds.jpeg'; > formAt: 'type' put: 'image/jpeg'; > post > > There must be a difference between the command line and the ZnClient > command because with the ZnClient command, I get this error: > {"objects":null,"error":{"message":"Uploaded file is not inside the > allowed directory","code":null,"data":null}}. > > I was also trying to get the command line from the ZnClient instance > with the method curl but that gives me this: > > echo 66696c653d402f55736572732f736162696e652f4465736b746f702f62656c6567652f6e6575655f62656c6567652f6d63646f6e616c64732e6a70656726747970653d696d6167652f6a706567 > | xxd -r -p | curl -X POST > https://my.sevdesk.de:443/api/v1/Voucher/Factory/uploadTempFile?token=32695… > -H"User-Agent:Zinc HTTP Components 1.0 (Pharo/7.0)" > -H"Accept:application/xml" > -H"Content-Type:application/x-www-form-urlencoded" > -H"Host:my.sevdesk.de" -H"Content-Length:77" --data-binary @- > > Would be very nice if you could help me. All I want ist to "translate" > the above curl command in a corresponding ZnClient command.... > > Regards > Sabine

1 0

Pharo at JPL
by Konrad Hinsen Aug. 30, 2020

Aug. 30, 2020

Hi everyone, I just saw the news (on Twitter) that JPL (NASA's Jet Propulsion Laboratory) has joined the Pharo Consortium. Does anyone here know what JPL is doing with Pharo? If it's related to scientific/engineering applications, that would be a nice marketing argument in the scientific/engineering community. Konrad.

7 9