- Pharo-users - lists.pharo.org

Re: [Pharo-users] Fwd: REST server helpers for Seaside 3.1 ?

by stepharo

Hi cameron I'm in the US so I will reply a bit and after other people will certainly complement. > Hi All. > > We need to set up a REST server for certain services and I am > wondering what helper classes exist that work with Seaside 3.1. with Seaside-Rest you get REST support. > Additionally, do they work on gemstone? I do not know but I would not see why it would not. > Also, what support tools/frameworks would you recommend for JSON I/O? NeoJSON from sven There is a chapter in the PharoForTheEntreprise book > > Thanks in advance, > Cam > > >

Oct. 29, 2014

Re: [Pharo-users] Pharo - OpenDBXDriver: Unsupported data type: UNKNOWN

by Esteban Lorenzano

there is a misunderstanding here (I think). the problem of the UNKNOWN type is not in OpenDBX but in the OpenDBXDriver. I remember I added the type UNKNOWN to all the... well, unknown types :) Since OpenDBX will give you a string with a timestamp, you can modify driver (a Pharo chunk of code) to adapt to your needs, without needing to modify more. for example (and always take into account that is been like 3yr since last time I seen this): when you instantiate a resultset you need to know the types, which comes from OpenDBX as a number, so you need to: detectNewTypes: aDBXResultSet notSupportedDescriptions keysAndValuesDo:[ :index :desc | | dbxType | dbxType := OpenDBX current apiQueryColumnType: aDBXResultSet handle index: (index - 1) . desc type: (aDBXResultSet dataTypeAt: dbxType); dbxType: dbxType. desc type isBehavior ifTrue:[ notSupportedDescriptions removeKey: index ] ] as you can see, that calls DBXResultSet>>#dataTypeAt: which at his time calls also #dataTypeAt: from the platform, who ends finally to answer something like this: at: 16rFF put: (DBXTypeNotSupported type: #UNKNOWN); (in DBXBackend>>#createDataTypesMap) Soâ¦ my opinion is that you could twist something someplace there (like creating your own platform backend, derivate from your real backend, who instead DBXTypeNotSupported type: #UNKNOWN will answer TimeStamp). Of course this is an ugly hack, but can solve your problem. If you want to be sure that you just change the type for the scheme you want and not for all possible UNKNOWN types, you can override dataTypeAt: in DBXResultSet and check if the column you want to change is the one you want, then you can force the type to the one you want. Wellâ¦ I can think in many other hacks that can solve your problem without changing opendbx.so and without changing either Glorp :) I suggest you to go in that direction. cheers, Esteban > On 28 Oct 2014, at 22:01, bsselfridge(a)gmail.com wrote > > I've contacted the OpenDBX development group and they seem to be unwilling to > add the "UNKNOWN" types to their library. So, that leaves us with solving > the problem in the GLORP framework. > > The big problem is the GlorpOpenDbxDriver is asking the DBXRow for its value > - not rawValue, thereby triggering the DBXTypeNotSupported object to throw > an exception. My suggestion is that framework needs to be enhanced to deal > with this problem and not force every developer to have to bypass/override > chunks of the Glorp framework whenever an "UNKNOWN" type is returned. > > I have some ideas how to overcome this dilemma. However, I think that I may > need to move this conversation to the Glorp group. > > > > > > ----- > Brad Selfridge > -- > View this message in context: http://forum.world.st/Pharo-OpenDBXDriver-Unsupported-data-type-UNKNOWN-tp4… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >

Oct. 28, 2014

Fwd: REST server helpers for Seaside 3.1 ?

by Cameron Sanders

Hi All. We need to set up a REST server for certain services and I am wondering what helper classes exist that work with Seaside 3.1. Additionally, do they work on gemstone? Also, what support tools/frameworks would you recommend for JSON I/O? Thanks in advance, Cam

Oct. 28, 2014

Re: [Pharo-users] Pharo - OpenDBXDriver: Unsupported data type: UNKNOWN

by bsselfridge＠gmail.com

I've contacted the OpenDBX development group and they seem to be unwilling to add the "UNKNOWN" types to their library. So, that leaves us with solving the problem in the GLORP framework. The big problem is the GlorpOpenDbxDriver is asking the DBXRow for its value - not rawValue, thereby triggering the DBXTypeNotSupported object to throw an exception. My suggestion is that framework needs to be enhanced to deal with this problem and not force every developer to have to bypass/override chunks of the Glorp framework whenever an "UNKNOWN" type is returned. I have some ideas how to overcome this dilemma. However, I think that I may need to move this conversation to the Glorp group. ----- Brad Selfridge -- View this message in context: http://forum.world.st/Pharo-OpenDBXDriver-Unsupported-data-type-UNKNOWN-tp4… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 28, 2014

Re: [Pharo-users] BabyMock2: Stubbing individual methods from existing instance?

by Attila Magyar

This is not supported. BabyMock is designed to test the message flow between objects, and not the internal implementation of an object. If the part what you want to stub out is not a private implementation detail then maybe extracting it to an object could help, otherwise couldn't you test the whole object? -- View this message in context: http://forum.world.st/BabyMock2-Stubbing-individual-methods-from-existing-i… Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com.

Oct. 28, 2014

Re: [Pharo-users] Pratsch

by Thierry Goubier

Hi Hans, I would not hesitate to state that in the Smalltalk vision, we should make no difference between a user and a programmer: a user has the right to be a programmer. Today, in academic circles, we call that "end-user programming" if you need more references (:)). If you take some of the best known examples of Pharo, you'll see that they are empowerment tools: they are designed to unleash a maximum amount of power by helping you reach complex goals a lot faster than usual. Look for Moose, Roassal, Seaside. Still, you can do sample, autonomous applications. For example, Phratch is at http://www.phratch.com/; DrGeo is at http://www.drgeo.eu/. You can start an application by opening it in a window (i.e. look for an open method). With a few more lines, you can open it fullscreen to hide the IDE (have to get back to work to give you those lines :)). With a bit more work, you can have it running from the command line. But remember, Pharo / Smalltalk is a live environment, not a compile and run my app kind of old stuff (and very old, given that Smalltalk itself is already old stuff). Have fun in your journey in Smalltalk :) Thierry Le 28/10/2014 13:36, Hans Schueren a Ã©crit : > Thank you Thierry , > > > guess i am an user. > > > " I have heared there are Pharo programmers" > > > Can i download such a program to see how good they are ? > > > I dont want to hear anything about coding and IDE and development. > > > I am a user and want to start a example program. > > > > Do you have a LINK for me to download ? > > > > Hans > > > This sounds strange. > > However , i have here a huge range of books about smalltalk 80. > > All the books describe the syntax and system. > > To write a better and better code and more functions. > > The only thing that is not describes is to display a running program > inside image. > > The keywords and methods to display and save the own code inside the > packages in the > > form of "image out" a manipulated smalltalk image to run as a user program. > > The first step is a really really simple program like mathematic > calculation etc. > > But the procedure of end product must be clear. > > Only one good example perhaps with a transcript display can overcome > theese difficulties. > > Its all unclear : > > show Transcript > > openInWorld > > class new class > > > Theese commands are messages to a object. > > But the user does not input any program code. This is automatic running. > > Anyway , if the Pharo.exe started the image in the program. > How , and with what keyword is then the program started fullscreen - > which World is invoked to display? > > This preparation point is unclear when i want to make my "Allready > written program" ready to start. > > > > However , i make a break with smalltalk now. > > A few books are still ordered from USA. > > If this point is unclear i cannot learn further at this point. > > It makes no sense to write Packages and classes if i cannot invoke the > running arrangements > No matter if they are objects or others. > > > > > > > > > > > > > > >

Oct. 28, 2014

werbung@hans-schueren.de

by stepharo

Hi hans imagine that you have an image with a program composed of several classes. One of which is the starting point of your application let us call it BibManager (this is an app managing bib entries for example). This class should have methods to start processing bib importFiles (interactive = prompt the importFiles: checkInconsistencies removeDuplicates saveNewBibFile (interactive) saveNewBibFiles: then to invoke you application you can do the following 1 ./pharo-vm myImageWithBibManager -eval 'BibManager new importFiles' (check the command line option and read the deep into pharo ZeroConfig chapter) 2 you could also define a startUp method on the class side of BibManager that executes BibManager new importFiles 3 or you can (if you have a UI) you can open it, BibManagerUI new openInWorld save the image and when launch the image your UI will be open and ready to use. Hans does it make sense to you? Stef Hello Mr. Ducasse , i have a complete program of Class and methods smalltalk 80 hardcopy. The principles of Objects are understandable. But to SAVE the image as a different program image and also RUN is a problem i dont understand yet. When i klick the program exe the image open and normally the fullscreen program window will appear. Are there any instructions how to "prepare" the packages and classes for starting ? Regards Hans PS. I have many books about smalltalk 80. At this time i only want to make a very simple program for calculation to RUN.

Oct. 28, 2014

Pharo program "examples"

by Torsten Bergmann

If your users are "Pharo" users then deploy to STHub, provide a load script (Gofer/Monticell) or add you goodie to the config browser by having a config in one of the Pharo Meta repositories. But I assume your question is more oriented to building "usual consumer" apps like Games, a business app, online app, ...: There is no definitive answer to your question. There are so many scenarios that could be applied to "build somenthing and deploying with Pharo" that there is no single answer/solution. It depends on what you need, who and where your users are. Some examples: ============== You could have a Pharo app similar to "http://www.drgeo.eu/" for desktop or Android, ... or a webapp like http://pharo.pharocloud.com, ... It depends on what you need. You can deploy as a Windows App, a Mac app, a linux app with our without ZeroConf, a web app that runs on Pharo Cloud or (like http://spesenfuchs.de) run on Amazon Cloud. You could deploy a Pharo GLASS environment, ... Usually there are two major steps that all these have in common: 1. Configuring the image to run the program - could be starting the webserver so the web app runs (usually done in Seaside, ...) - could be starting the window that you need (if you build a Pharo based window UI with Spec for instance as the "PharoLauncher" app does) - could mean to open a morph fullscreen (similar to what "Phratch" app does to deploy) - could mean to additionally throw out classes/packages out that you do not need to minimize the image ("stripping an image") or load only the packages you need on an already minimal image ("bottom up approach") In any case typically the program is already prepared to run in a saved image, so when the saved image is opened by the end user it can be cunsumed/used 2. Deploy and distribute - for a webapp one can copy the image to Pharocloud or install you own server with Pharo and Apache or Nginx - could mean to just copy the OS specific virtual machine (VM) + image to a desktop machine (or as ZIP), (on Windows adopt the Pharo.ini to run this specific image) - provide a simple bash script so the packages are downloaded for a unix like scenario (following ZeroConf) - provide a PPA/DPKG like distribution as Pharo does for Ubuntu http://pharo.org/download - could mean to have a "one click" similar to the "Pharo one click" with all the virtual machines and the image (so it runs portable on different operating systems), this is usefull for memory stick like deployment (see the "portable" ZIPs in http://files.pharo.org/platform/) - could mean you build a custom VM with an own icon - for instance for a Windows.exe, optional own plugins and an own setup/installer like Pharo Launcher provides (or use the Pharo.exe with Reshacker to exchange the icon) Some pointers: LOCAL INSTALLABLE APP ===================== look at PharoLauncher http://www.smalltalkhub.com/#!/~Pharo/PharoLauncher It even comes with a setup (using NSIS installer) or Phratch (http://phratch.com/) You can download them for end user or install them in Pharo. Also check the following pointers: http://lists.gforge.inria.fr/pipermail/pharo-project/2010-February/021450.h… http://squeakvm.org/win32/custom.html http://joachimtuchel.wordpress.com/2010/02/05/great-summary-on-how-to-depla… or check this from the old lasergame for preparation http://squeak.preeminent.org/tut2007/html/205.html Own installer, see "build-windows-installer.sh" file and subdir "windows-installer" https://github.com/pharo-project/pharo-ci ... WEB APPLICATIONS ================ Deploying a Zinc (Zn) based web app on your own http://zn.stfx.eu/zn/build-and-deploy-1st-webapp/ Deploy a Seaside based web app http://book.seaside.st/book/advanced/deployment/deployment-preparing Deploy a webapp using Pharocloud http://pharocloud.com/blog/view/2013-12-04_image_store http://stackoverflow.com/questions/19350167/can-you-deploy-applications-wri… ... AN OWN BOOTABLE OPERATING SYSTEM ================================ http://pillarhub.pharocloud.com/hub/mikefilonov/pharonos

Oct. 28, 2014

BabyMock2: Stubbing individual methods from existing instance?

by Damien Pollet

Hi, I'm porting unit tests to BabyMock2 from another mocking framework (DoubleAgents from VW). Some tests wrap an existing domain object in order to exercise some of its code, while controlling the return value of one of its methods (one method is stubbed). I'm guessing this is technically possible in BabyMock2, since it uses the same approach as Ghost proxies, but the readme does not show howâ¦ is it currently possible ? (if it's not there, consider this an official feature request :) -- Damien Pollet type less, do more [ | ] http://people.untyped.org/damien.pollet

Oct. 28, 2014

Re: [Pharo-users] Changes file size

by Sven Van Caekenberghe

> On 28 Oct 2014, at 14:58, Esteban A. Maringolo <emaringolo(a)gmail.com> wrote: > > 2014-10-28 5:41 GMT-03:00 Sven Van Caekenberghe <sven(a)stfx.eu>: >> Esteban, >> >> The Reddit example's CI Job (https://ci.inria.fr/pharo-contribution/job/Reddit/) also loads Seaside and Glorp (two big packages) in Pharo 3 and it too results in a 110 Mb image and 142 Mb changes file. After condensing, that goes to 276 Mb ! > >> I would say something is wrong here ;-) > > Either something is wrong, or we feature it and rename > PharoChangesCondenser>>#condense to PharoChangesExpander>>#expand :) > >> Note that condensing changes on newly loaded code should not make much difference (in essence, all multiple versions of methods are reduced to 1). > >> I think we should create some issues out of this. > > This is true, however I find a changes of 140 megs to be MASSIVE. I totally agree, this is unacceptable. However, I did some tests, and the problem is with Glorp (or any of its sub packages). I tried building both my Reddit and HP35 examples from scratch in Pharo 3 on Linux. $ ./pharo reddit.image config http://smalltalkhub.com/mc/SvenVanCaekenberghe/Reddit/main ConfigurationOfReddit --install=stable $ ./pharo hp35.image config http://smalltalkhub.com/mc/SvenVanCaekenberghe/HP35/main ConfigurationOfHP35 --install=stable --group=Web-UI Both load Seaside and some other stuff, but only Reddit loads Glorp and PostgresV2. I did a condense changes on the HP35 image, the one on the Reddit image ran out of physical memory (granted is was a small machine) ! Here are the resulting sizes: $ ls -lah total 337M drwxr-xr-x 4 root root 4.0K Oct 28 15:09 . drwx------ 12 root root 4.0K Oct 28 12:28 .. -rw-r--r-- 1 root root 5.8M Oct 28 13:17 hp35.changes -rw-r--r-- 1 root root 5.6M Oct 28 14:38 hp35-condense-test.changes -rw-r--r-- 1 root root 5.8M Oct 28 14:27 hp35-condense-test.changes.bak -rw-r--r-- 1 root root 29M Oct 28 14:38 hp35-condense-test.image -rw-r--r-- 1 root root 29M Oct 28 13:17 hp35.image drwxr-xr-x 2 root root 4.0K Oct 28 13:12 package-cache -rwxr-xr-x 1 root root 367 Oct 28 12:29 pharo -rw-rw-r-- 1 root root 265K Oct 24 14:42 Pharo.changes -rw-rw-r-- 1 root root 21M Oct 24 14:42 Pharo.image -rwxr-xr-x 1 root root 354 Oct 28 12:29 pharo-ui drwxr-xr-x 3 root root 4.0K Oct 28 12:29 pharo-vm -rw-r--r-- 1 root root 136M Oct 28 12:48 reddit.changes -rw-r--r-- 1 root root 105M Oct 28 12:48 reddit.image Note how the HP35 image and changes sizes are totally acceptable/normal, while the Reddit one explodes, with the difference being Glorp. But I have no idea what causes this. There is no way Glorp can generate 100 Mb changes, when Seaside is OK with 6 Mb. > I remember loading ~4000 classes in the order of 10^6 LOC in Dolphin, and > changes never got half that size. Sizes were ~28/55MB image/changes. > The same in VAST, any image beyond the 20MB was an alert of something > being leaked. > >> Hmm, we need more tests and data points, I will try on Linux command line later on. > > I ran in it in Linux (Ubuntu) through the command line. > > > Regards! >

Oct. 28, 2014