- Pharo-users - lists.pharo.org

Pharo9: Lessons in "Learn Pharo" are now black and unreadable

by hedley.finger＠gmail.com

Ubuntu 20.04.3 Pharo-9.0.0+build.1573 I am a noob just getting started with Pharo. After tuning some System preferences (e.g. switching to Pharo Light theme, etc.) the lessons in âLearn Pharoâ available from the âWelcomeâ window are near black and unreadable. When I click on âLearn Pharoâ the initial page is okay (black or blue type on a black background) but doing â`ProfStef go.`â messages opens the next lesson where all text has such a black background it is unreadable. Doing â`ProfStef next.`â or â`ProfStef previous.`â on subsequent pages opens a new page similarly illegible. Iâve searched through all the System prefs but canât figure out which one affects the lesson pages. Regards, Hedley

Dec. 27, 2021

Re: Pharo won't start on Ubuntu

by hedley.finger＠gmail.com

I installed from the .deb package and now there are no problems starting Pharo on Ubuntu 20.04.3.

Dec. 27, 2021

Re: Necessity / Location / Credentials for Repositories listed in iceberg

by in_pharo_users＠nym.hush.com

Thanks, Stephane. I am aware of this now most comfortable possibility to gain access to the newest image. I want to prepare to be able to offer feedback when making changes while working with it; esp. reporting on glitches, and, possibly, code contributions. As of my understanding, up-to-date local repositories in sync with the image are neccessary to do that. Am I wrong? On 22.12.2021 at 11:02 PM, stephane.ducasse(a)free.fr wrote: > >Hi > >What I suggest is to load the latest version of Pharo 10 with the >launcher. > >S > >> On 20 Dec 2021, at 11:51, in_pharo_users--- via Pharo-users ><pharo-users(a)lists.pharo.org> wrote: >> >> Dear all, >> >> I would like to load a complete dev image with all repositories >affected for pharo 10 under development. >> Is there a documentation I can follow?. >> >> Where can I find >> >> pharo-spec2 >> pharo-newtools >> libgit2-pharo-bindings ? >> >> Can I acess these? >> >> Kind regards, >> >> Friedl

Dec. 26, 2021

Re: Pharo9 GLORP + MySQL

by laszlo.szolnoki＠gmail.com

Iâm halfway through the documentation and made some tests. I am very impressed by ReStore so far, to say the least. Feels like a Christmas present :) Thank you, Sir. Laszlo

Dec. 24, 2021

Re: Pharo-WebView

by Russ Whaley

I tried to run the commands in terminal in MacOS... it didn't even (nor did I) understand 'go' so we were both stymied at step one (lol). I'll pick it up again after the holidays and give it another try with my full attention. Happy Holidays, Russ On Thu, Dec 23, 2021 at 1:06 PM <tomazz.turk(a)gmail.com> wrote: > @Todd, @Russ, yes, with Gtk3 it's a bit harder than I expected. > > Gtk3 has a main message loop gtk_main() which, as it is being used in the webview > library <https://github.com/webview/webview> that I chose, blocks Pharo > completely while webview window is active. On Windows, the webview window > in general works without engaging the main message loop, but windows > implementation doesn't rely on Gtk3 but on Edge. > > On Linux, I firstly tried to put this webview library into a separate > thread (a worker with headless image), however in this kind of setup the > callbacks from the library cannot reach Pharo main thread. I solved this by > exposing two additional Gtk3 functions in webview library, > gtk_events_pending() and gtk_main_iteration() which enabled the > construction of main event loop in Pharo that I run on the Idle Process > priority level so that it doesn't take 100% of the processor time, like > this: > > proc := [[ true ] > > whileTrue: [ > > (wv ffiEventsPending = 1) ifTrue: > > [wv ffiRunIteration]. > > Processor yield. > > ]] forkAt: Processor lowestPriority. > > So I don't need to run the webview library in separate thread, which is a > bit simpler, and the callbacks work as they should. Now I just have to > create some signaling so that Pharo will know if the user closes the > webview window, and check if two Pharo classes that I already have (WebView > and WebViewCallback) will suffice for these additional complications. > > If anybody has a better idea for main loop implementation, I'm opened to > suggestions :-) > > The webview library that I chose uses Cocoa on MacOS, so no Gtk3 there. I > hope that it will not be too difficult and that the above "one thread > approach" will be OK for MacOS, too. Gtk3 was quite challenging, I was also > considering to drop whis webview library and use gtk-bindings for Pharo > directly, however then I would not be consistent also for Edge and Cocoa > (in using one "umbrella" library). As far as I know, the webview general > intention is to use the native GUI technology as much as possible. > > Best wishes, > Tomaz > -- Russ Whaley whaley.russ(a)gmail.com

Dec. 23, 2021

Re: Pharo9 GLORP + MySQL

by Todd Blanchard

Load the glorp target from the MySQL repository. > On Dec 22, 2021, at 1:33 PM, laszlo.szolnoki(a)gmail.com wrote: > > Hi, Iâm new to the Pharo users mailing list and to Pharo in general, too. > > My goal is to make a CRUD web application using Seaside, Magritte, GLORP and MariaDB (MySQL-like RDBMS). > > I already test-drove GLORP with PostgreSQL-P3, with success. > > But I need MariaDB because it implements SQL:2011 (which Postgres lacks currently) thus enabling the use of system-versioned and bi-temporal tables. > > Currently I donât need GLORP to handle any of the SQL:2011 features as the versioning would be invisible to the web app, it is needed only for auditing purposes. > > I tried to make the system work be installing the MySQL driver into a fresh Pharo9 image: > > Metacello new repository: 'github://pharo-rdbms/Pharo-MySQL'; baseline: 'MySQL'; load Since the package 'MySQL-Glorp' didn't load, I installed it manually from github. (Sorry but I'm noob to work with baselines, Iceberg, Monticello and such.) Then loaded GLORP: Metacello new repository: 'github://pharo-rdbms/glorp'; baseline: 'Glorp'; load. Then I tried to do everything in a similar manner to how I did it with P3: login := Login new database: MySQLPlatform new; username: 'root'; password: '****'; host: '<my host>'; port: '3306'; databaseName: 'test'. accessor := DatabaseAccessor forLogin: login. accessor login. accessor isLoggedIn. >>> true Yay, very nice. Then: session := GlorpBookDescriptorSystem sessionForLogin: login. *GlorpBookDescriptorSystem is subclass of DescriptorSystem. It comes from the demo from pharobooks with an example on how to use GLORP with P3. It contains the demo class models, descriptors and table definitions. And finally: session login. >>> Instance of MySQLDriver did not understand #queryEncoding :( Any hints appreciated. > >

Dec. 23, 2021

Re: Pharo-WebView

by tomazz.turk＠gmail.com

@Todd, @Russ, yes, with Gtk3 it's a bit harder than I expected. Gtk3 has a main message loop gtk_main() which, as it is being used in the [webview library](https://github.com/webview/webview) that I chose, blocks Pharo completely while webview window is active. On Windows, the webview window in general works without engaging the main message loop, but windows implementation doesn't rely on Gtk3 but on Edge. On Linux, I firstly tried to put this webview library into a separate thread (a worker with headless image), however in this kind of setup the callbacks from the library cannot reach Pharo main thread. I solved this by exposing two additional Gtk3 functions in webview library, gtk_events_pending() and gtk_main_iteration() which enabled the construction of main event loop in Pharo that I run on the Idle Process priority level so that it doesn't take 100% of the processor time, like this: `proc := [[ true ] ` ` whileTrue: [ ` ` (wv ffiEventsPending = 1) ifTrue: ` ` [wv ffiRunIteration]. ` ` Processor yield.` ` ]] forkAt: Processor lowestPriority.` So I don't need to run the webview library in separate thread, which is a bit simpler, and the callbacks work as they should. Now I just have to create some signaling so that Pharo will know if the user closes the webview window, and check if two Pharo classes that I already have (WebView and WebViewCallback) will suffice for these additional complications. If anybody has a better idea for main loop implementation, I'm opened to suggestions :-) The webview library that I chose uses Cocoa on MacOS, so no Gtk3 there. I hope that it will not be too difficult and that the above "one thread approach" will be OK for MacOS, too. Gtk3 was quite challenging, I was also considering to drop whis webview library and use gtk-bindings for Pharo directly, however then I would not be consistent also for Edge and Cocoa (in using one "umbrella" library). As far as I know, the webview general intention is to use the native GUI technology as much as possible. Best wishes,\ Tomaz

Dec. 23, 2021

Re: Pharo9 GLORP + MySQL

by John Aspinall

Hi - I canât help with your GLORP query but you may find ReStore a viable alternative, particularly if you're starting with a new database: https://github.com/rko281/ReStoreForPharo <https://github.com/rko281/ReStoreForPharo> Iâve just checked and the MySQL/MariaDB connector is working in both Pharo 9 and 10. Cheers. John Aspinall > On 22 Dec 2021, at 20:33, laszlo.szolnoki(a)gmail.com wrote: > > Hi, Iâm new to the Pharo users mailing list and to Pharo in general, too. > > My goal is to make a CRUD web application using Seaside, Magritte, GLORP and MariaDB (MySQL-like RDBMS). > > I already test-drove GLORP with PostgreSQL-P3, with success. > > But I need MariaDB because it implements SQL:2011 (which Postgres lacks currently) thus enabling the use of system-versioned and bi-temporal tables. > > Currently I donât need GLORP to handle any of the SQL:2011 features as the versioning would be invisible to the web app, it is needed only for auditing purposes. > > I tried to make the system work be installing the MySQL driver into a fresh Pharo9 image: > > Metacello new repository: 'github://pharo-rdbms/Pharo-MySQL'; baseline: 'MySQL'; load Since the package 'MySQL-Glorp' didn't load, I installed it manually from github. (Sorry but I'm noob to work with baselines, Iceberg, Monticello and such.) Then loaded GLORP: Metacello new repository: 'github://pharo-rdbms/glorp'; baseline: 'Glorp'; load. Then I tried to do everything in a similar manner to how I did it with P3: login := Login new database: MySQLPlatform new; username: 'root'; password: '****'; host: '<my host>'; port: '3306'; databaseName: 'test'. accessor := DatabaseAccessor forLogin: login. accessor login. accessor isLoggedIn. >>> true Yay, very nice. Then: session := GlorpBookDescriptorSystem sessionForLogin: login. *GlorpBookDescriptorSystem is subclass of DescriptorSystem. It comes from the demo from pharobooks with an example on how to use GLORP with P3. It contains the demo class models, descriptors and table definitions. And finally: session login. >>> Instance of MySQLDriver did not understand #queryEncoding :( Any hints appreciated. > >

Dec. 23, 2021

Re: Pharo-WebView

by Russ Whaley

Todd, me neither, but I am a bit worried about mentions of gtk, as I havenât been able to get that to work either :( On Fri, Dec 17, 2021 at 12:50 PM Todd Blanchard via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Seems cool but I can't figure out how to build it as a library on MacOS. > > > On Dec 16, 2021, at 10:02 AM, TomaÅ¾ Turk <tomazz.turk(a)gmail.com> wrote: > > Dear all, > > Pharo-WebView package is now available on GitHub at > https://github.com/eftomi/Pharo-Webview. > > Pharo-WebView is a package which implements a binding to webview dll > library available at https://github.com/webview/webview in Pharo. Webview > allows you to show HTML user interfaces in a native window, inject > JavaScript code and HTML content into the window. It renders HTML > originating via web requests or as a direct input. > > I tested it on Windows 64 bit in Pharo 64, I plan to do that on Pharo 32 > and Linux, however I don't have access to Mac, so if anybody is interested, > I'd be grateful :-) > > Best wishes, > Tomaz > > > -- Russ Whaley whaley.russ(a)gmail.com

Dec. 22, 2021

Pharo9 GLORP + MySQL

by laszlo.szolnoki＠gmail.com

Hi, Iâm new to the Pharo users mailing list and to Pharo in general, too. My goal is to make a CRUD web application using Seaside, Magritte, GLORP and MariaDB (MySQL-like RDBMS). I already test-drove GLORP with PostgreSQL-P3, with success. But I need MariaDB because it implements SQL:2011 (which Postgres lacks currently) thus enabling the use of system-versioned and bi-temporal tables. Currently I donât need GLORP to handle any of the SQL:2011 features as the versioning would be invisible to the web app, it is needed only for auditing purposes. I tried to make the system work be installing the MySQL driver into a fresh Pharo9 image: Metacello new repository: 'github://pharo-rdbms/Pharo-MySQL'; baseline: 'MySQL'; load Since the package 'MySQL-Glorp' didn't load, I installed it manually from github. (Sorry but I'm noob to work with baselines, Iceberg, Monticello and such.) Then loaded GLORP: Metacello new repository: 'github://pharo-rdbms/glorp'; baseline: 'Glorp'; load. Then I tried to do everything in a similar manner to how I did it with P3: login := Login new database: MySQLPlatform new; username: 'root'; password: '\*\*\*\*'; host: '<my host>'; port: '3306'; databaseName: 'test'. accessor := DatabaseAccessor forLogin: login. accessor login. accessor isLoggedIn. >>> true Yay, very nice. Then: session := GlorpBookDescriptorSystem sessionForLogin: login. \*GlorpBookDescriptorSystem is subclass of DescriptorSystem. It comes from the demo from pharobooks with an example on how to use GLORP with P3. It contains the demo class models, descriptors and table definitions. And finally: session login. >>> Instance of MySQLDriver did not understand #queryEncoding \:( Any hints appreciated.

Dec. 22, 2021