April 2010 - Pharo-users - lists.pharo.org

Re: [Pharo-users] A problem about SCouchDB library

by Mariano Martinez Peck

I don't know if Igor is in this mailing list...but just in case I cc him. Maybe he can help you. Cheers Mariano On Tue, Apr 6, 2010 at 4:48 PM, zekUs <zekzekus(a)gmail.com> wrote: > Hi, > > this is not a directly pharo specific question but i guess here is the > right place to ask. > > i am playing with scouchdb library. i have a problem. i am trying to > evaluate the code below: > > | dbAdaptor | > dbAdaptor := SCouchDBAdaptor new host: '10.24.5.38' port: 5984. > dbAdaptor databases. > > and there is an exception raised: "JSSyntaxError: Missing Comma". it looks > like a problem with JSON package but when i debug and inspect the response > object in SCouchDBAdaptor>>databases method, i can see the content of the > response is nil. but the data i need is in the inBuffer field under cstream > of the response. below snippet is the data from response objects' cstream. > the data in inBuffer field: > > 'HTTP/1.1 200 OK > Server: CouchDB/0.10.0 (Erlang OTP/R13B) > Date: Tue, 06 Apr 2010 13:43:39 GMT > Content-Type: application/json > Content-Length: 21 > Cache-Control: must-revalidate > > ["baseball","hasan"] > > am i doing something wrong? > > best regards. > > -- > zekUs - http://zekzekus.com/blog > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > >

April 6, 2010

A problem about SCouchDB library

by zekUs

Hi, this is not a directly pharo specific question but i guess here is the right place to ask. i am playing with scouchdb library. i have a problem. i am trying to evaluate the code below: | dbAdaptor | dbAdaptor := SCouchDBAdaptor new host: '10.24.5.38' port: 5984. dbAdaptor databases. and there is an exception raised: "JSSyntaxError: Missing Comma". it looks like a problem with JSON package but when i debug and inspect the response object in SCouchDBAdaptor>>databases method, i can see the content of the response is nil. but the data i need is in the inBuffer field under cstream of the response. below snippet is the data from response objects' cstream. the data in inBuffer field: 'HTTP/1.1 200 OK Server: CouchDB/0.10.0 (Erlang OTP/R13B) Date: Tue, 06 Apr 2010 13:43:39 GMT Content-Type: application/json Content-Length: 21 Cache-Control: must-revalidate ["baseball","hasan"] am i doing something wrong? best regards. -- zekUs - http://zekzekus.com/blog

April 6, 2010

Re: [Pharo-users] Pharo-users Digest, Vol 4, Issue 9

by DeNigris Sean

Thanks for all the replies - this is great! >> Got it. In Squeak, this was the mechanism I used to keep objects from different domains separate, > it did not. I meant conceptually and visually - the metaphor (seemed to me) of stepping into another room in a house filled with objects, so I could put all my financial stuff "in my home office" and my reference books "in the study." >> Is there a similar (or better) mechanism for this in Pharo? > Classes? <snip> > I think that you misunderstand projects and also the purpose of classes and instances. > May be you should read some of the books available on my web page like the art of object-oriented programming. Please understand that I am grateful beyond words that people I don't know ( yet :) ) have created, and are maintaining and improving software and reference materials that are transforming my understanding of what's possible with computers. And... I'm good with OOP (and I read every book about OOP and Smalltalk I could get my hands on, including a few of yours, and enjoyed them all). What I'm not grokking is: my understanding of Squeak (which I applied to Pharo) from all of Alan Kay's work is that it's moving closer toward an "application-less" virtual world, where all objects can communicate with all others - instead of Microsoft Money holding my financial data hostage in a proprietary data file, and Apple holding my notes in Mail.app data files, *I* hold all these objects (and the system itself), all written in Smalltalk, so I have complete control over my computer world. Now... what I am curious about (and haven't found a book to address), is what (if any) are the strategies one uses to conceptually make sense of a virtual world of possibly thousands of (normally, mostly) unrelated objects. For example, 9 out of 10 times, I probably don't care that I have journal entries alive in my image when I'm processing receipts, but the one time I want to cross-reference the journal for keywords for certain purchases, I want access to them. And all I've seen in reference books is how to develop "an application" in Squeak/Pharo i.e. code that does one conceptual thing e.g. moves a turtle, rolls a die, creates a laser game - which were all totally great, and also did not give me any insight to this particular question. Maybe it's something really obvious to a long-time Smalltalker that no one's bothered to write down?! Thanks again. Sean

April 6, 2010

Re: [Pharo-users] Projects

by StÃ©phane Ducasse

Hi sean, >> Pharo does not support Projects. > Got it. In Squeak, this was the mechanism I used to keep objects from different domains separate, it did not. Or we have a different definition of separate :) > but the amazing Smalltalk beauty of it was that the objects could talk and act across the boundary. I was building a utopian digital world without the artificial boundaries of "applications." the project boundaries are artificial. Only one changeset was > Is there a similar (or better) mechanism for this in Pharo? Classes? > For example: > If I was using an image for all my personal computing, and I wanted to manage both my personal accounting and my journal; in Squeak, I would create a MyMoney project and a MyJournal project. no this is not the purpose of projects. > How would you handle this goal in Pharo? My objective is to have every domain object in my life be able to communicate with every other object, without having one huge, unmanageable pile. use classes. > Maybe keep the objects in repositories stored in class instance variables in top-level project-like objects? Like have a MyMoney class contain all the money-related objects, and a MyJournal class keep all the journal stuff... > Is any of this making sense? I think that you misunderstand projects and also the purpose of classes and instances. May be you should read some of the books available on my web page like the art of object-oriented programming. > Thanks! > Sean > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users

April 6, 2010

Re: [Pharo-users] Projects/Project Windows

by Mariano Martinez Peck

Hi Sean. As Stef said, Projects were removed from Pharo. Not completely yet. I guess you are using a PharoDev image. Those images are based in PharoCore 1.0. You can take Project class and look the references. If you take a look at PharoCore 1.1 images and look for references, you will see there are a lot less. But sill, the class is present and it has only one instance. Cheers Mariano On Mon, Apr 5, 2010 at 5:58 PM, StÃ©phane Ducasse <stephane.ducasse(a)inria.fr>wrote: > > On Apr 5, 2010, at 10:33 PM, DeNigris Sean wrote: > > > How do you create Projects in Pharo? > > Pharo does not support Projects. > > > In Squeak, you can select "new morphic project" from the world menu. I > found out how to do the same thing programmatically: > >> Project newMorphicOn: nil. > > Don;t do that > Projects will be completely removed. > > > The SystemWindow appears - great, no problem; except... I can't figure > out how to enter the project. When I click on it (which would enter it in > Squeak), nothing happens. I tried a bunch of other stuff, but couldn't make > it happen. > > > > Thanks! > > > > Sean > > > > p.s. more generally, is there a way to get removed Squeak world menu > options through the GUI? > > if you find squeak menu specific actions that are obsolete in Pharo report > them here since we will continue to clean everything. > > > Or do you have to perform the actions programmatically? > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users >

April 6, 2010

Re: [Pharo-users] Projects

by DeNigris Sean

> Pharo does not support Projects. Got it. In Squeak, this was the mechanism I used to keep objects from different domains separate, but the amazing Smalltalk beauty of it was that the objects could talk and act across the boundary. I was building a utopian digital world without the artificial boundaries of "applications." Is there a similar (or better) mechanism for this in Pharo? For example: If I was using an image for all my personal computing, and I wanted to manage both my personal accounting and my journal; in Squeak, I would create a MyMoney project and a MyJournal project. How would you handle this goal in Pharo? My objective is to have every domain object in my life be able to communicate with every other object, without having one huge, unmanageable pile. Maybe keep the objects in repositories stored in class instance variables in top-level project-like objects? Like have a MyMoney class contain all the money-related objects, and a MyJournal class keep all the journal stuff... Is any of this making sense? Thanks! Sean

April 5, 2010

Re: [Pharo-users] Projects/Project Windows

by StÃ©phane Ducasse

On Apr 5, 2010, at 10:33 PM, DeNigris Sean wrote: > How do you create Projects in Pharo? Pharo does not support Projects. > In Squeak, you can select "new morphic project" from the world menu. I found out how to do the same thing programmatically: >> Project newMorphicOn: nil. Don;t do that Projects will be completely removed. > The SystemWindow appears - great, no problem; except... I can't figure out how to enter the project. When I click on it (which would enter it in Squeak), nothing happens. I tried a bunch of other stuff, but couldn't make it happen. > > Thanks! > > Sean > > p.s. more generally, is there a way to get removed Squeak world menu options through the GUI? if you find squeak menu specific actions that are obsolete in Pharo report them here since we will continue to clean everything. > Or do you have to perform the actions programmatically?

April 5, 2010

Projects/Project Windows

by DeNigris Sean

How do you create Projects in Pharo? In Squeak, you can select "new morphic project" from the world menu. I found out how to do the same thing programmatically: > Project newMorphicOn: nil. The SystemWindow appears - great, no problem; except... I can't figure out how to enter the project. When I click on it (which would enter it in Squeak), nothing happens. I tried a bunch of other stuff, but couldn't make it happen. Thanks! Sean p.s. more generally, is there a way to get removed Squeak world menu options through the GUI? Or do you have to perform the actions programmatically?

April 5, 2010

Re: [Pharo-users] ecompletion and new browser

by Mariano Martinez Peck

On Mon, Apr 5, 2010 at 5:12 PM, zekUs <zekzekus(a)gmail.com> wrote: > thanks for reply. it works now. > > so we must take look at configuration packages before loading the package. > i am getting used to this metacello system slowly. > > Yes. If the "default" doesn't satisfy your needs, then yes. There is no need to explicitly look the code. You can just inspect for example: (ConfigurationOfO2 project version: '1.2') groups Then, you can inspect a particular group, and inspect the result of the message "includes" to see what it is included in such group. Hope this helps. Cheers Mariano 2010/4/5 Mariano Martinez Peck <marianopeck(a)gmail.com> > >> >> But that's not what you want. That's why I told you to install it in this >> way: >> >> >> Gofer new >> squeaksource: 'MetacelloRepository'; >> package:'ConfigurationOfO2'; >> load. >> >> ((Smalltalk at: #ConfigurationOfO2) project version: '1.2') load: >> 'Dev'. >> >> >> In metacello you can define groups of packages. When you load something >> with Metacello, you can do just load and that will load the default >> packages. But after, you can have differents groups. The default can be just >> the core packages. Then you can have groups called "Dev" where it also >> installs the dev tools. >> >> Using load: you specify a group name, a package name or a list. >> >> Take a look at the class ConfigurationOfO2, to the baseline methods, at >> the end, where the groups are defined. >> >> Moreover, I recommend you to read the Metacello tutorial: >> >> http://code.google.com/p/metacello/wiki/Tutorial >> >> Cheers >> >> Mariano >> >>> _______________________________________________ >>> >> > -- > zekUs - http://zekus.net/blog > > _______________________________________________ > Pharo-users mailing list > Pharo-users(a)lists.gforge.inria.fr > http://lists.gforge.inria.fr/cgi-bin/mailman/listinfo/pharo-users > >

April 5, 2010

Re: [Pharo-users] ecompletion and new browser

by zekUs

thanks for reply. it works now. so we must take look at configuration packages before loading the package. i am getting used to this metacello system slowly. 2010/4/5 Mariano Martinez Peck <marianopeck(a)gmail.com> > > But that's not what you want. That's why I told you to install it in this > way: > > > Gofer new > squeaksource: 'MetacelloRepository'; > package:'ConfigurationOfO2'; > load. > > ((Smalltalk at: #ConfigurationOfO2) project version: '1.2') load: > 'Dev'. > > > In metacello you can define groups of packages. When you load something > with Metacello, you can do just load and that will load the default > packages. But after, you can have differents groups. The default can be just > the core packages. Then you can have groups called "Dev" where it also > installs the dev tools. > > Using load: you specify a group name, a package name or a list. > > Take a look at the class ConfigurationOfO2, to the baseline methods, at the > end, where the groups are defined. > > Moreover, I recommend you to read the Metacello tutorial: > > http://code.google.com/p/metacello/wiki/Tutorial > > Cheers > > Mariano > >> _______________________________________________ >> > -- zekUs - http://zekus.net/blog

April 5, 2010