October 2015 - Pharo-users - lists.pharo.org

Re: [Pharo-users] Analysis/Visualizations of DBs

by Stephan Eggermont

On 02-10-15 14:34, Torsten Bergmann wrote: > What I think of is a tool where (after connecting to a possibly unknown database) you can easily > get/build an overview on the design, quality and data of the database (similar to what Moose, ViDi does > for code). In general, this is difficult to do. Our tools assume that all data is in ram and you can easily calculate the metrics you want to display. That means that currently it works well for databases < ~2GB. With a 64 bit VM we can easily use ~500 GB in a workstation (let's see what the GC thinks of that) or 60GB in a cheap PC. For analyzing legacy systems, the current limits are enough to analyze and migrate an ERP system for a 100-people company with 20 years of production data. What can be extremely helpful is normalizing data while reading it from the database. You'll often find that you can reduce file size for the largest tables by a factor 10. To get a quick idea of the normalization of the data, try zipping a dump file. Stephan

Oct. 2, 2015

Re: [Pharo-users] Spec LabelModel's #font: and other styles

by Johan Fabry

I think it is better to avoid setting absolute style info for labels, e.g. font size and color. This because system settings allow you to set, e.g. font size systemwide, and it would be ugly if suddenly some labels donât obey. Now, what could be done is to set some attributes like âbiggerâ, âsmallerâ, et cetera, and these should then take the system settings into account. > On Oct 2, 2015, at 08:47, Peter UhnÃ¡k <i.uhnak(a)gmail.com> wrote: > > Does it make sense to be able to specify font and similar at Spec-level? > > And not just font, also the size, color, or emphasis (which currently only emphasis is supported). > > From one perspective it's handy, because I can change it at a whim, however I wonder whether this shouldn't be responsibility of some styler instead. > > Text as far as I know is capable of storing styled information. This would enable to outsource the style information to someone else (e.g. your stylesheet). However from practical perspective for the end user it would be extra work as it would add an indirection step. > > For TextModel that would be clearly better (because you might want to style different parts of text differently), however for LabelModel I'm not so sure. > > Any opinions? > > Thanks, > Peter ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

Oct. 2, 2015

Re: [Pharo-users] Analysis/Visualizations of DBs

by Thierry Goubier

2015-10-02 14:34 GMT+02:00 Torsten Bergmann <astares(a)gmx.de>: > Hi, > > we have many nice analysis and visualizations tools available (Moose, > Roassal, ViDi, ...) > Often it is focused on development or code. Also we have refactoring tools. > > What would be cool would be to have some tool for doing this on > (relational) databases and > included data: > > - visualize databases (tables, data clusters, number of columns, ...) > I like the fact you're saying database and not datasets ;) > - analyze tables on satisfying some (external) business constraints > and consistency rules > Depending on how powerfull is your constraint system. > - refactoring of databases (moving, migrating colums, ...) > Hum, that one: schema migration. Probably already a lot of work on the theory of that. > - easy building reports/visualizations of included data (extract, query, > filter, ...) > Business reporting generator. Many pre-existing competition doing lots of very cool visualisations already. > > What I think of is a tool where (after connecting to a possibly unknown > database) you can easily > get/build an overview on the design, quality and data of the database > (similar to what Moose, ViDi does > for code). > > Is there any research, projects, ... for data mining already in Pharo? I > guess this could make > up a great toolset with Pharo as a base and make it more known because in > the software business > relational databases play a big role. > Some have done a datathon in Paris with Pharo (Serge, Onil, Me a bit in remote, Alexandre, Alvaro...). Had big issues opening a large file (~66GB of CSV data). > > Any takers for the next Pharo success story? ;) > Would be nice ;) Thierry > > Bye > T. > >

Oct. 2, 2015

Re: [Pharo-users] Analysis/Visualizations of DBs

by Esteban A. Maringolo

I would be happy to participate in such project :) Esteban A. Maringolo 2015-10-02 9:34 GMT-03:00 Torsten Bergmann <astares(a)gmx.de>: > Hi, > > we have many nice analysis and visualizations tools available (Moose, Roassal, ViDi, ...) > Often it is focused on development or code. Also we have refactoring tools. > > What would be cool would be to have some tool for doing this on (relational) databases and > included data: > > - visualize databases (tables, data clusters, number of columns, ...) > - analyze tables on satisfying some (external) business constraints > and consistency rules > - refactoring of databases (moving, migrating colums, ...) > - easy building reports/visualizations of included data (extract, query, filter, ...) > > What I think of is a tool where (after connecting to a possibly unknown database) you can easily > get/build an overview on the design, quality and data of the database (similar to what Moose, ViDi does > for code). > > Is there any research, projects, ... for data mining already in Pharo? I guess this could make > up a great toolset with Pharo as a base and make it more known because in the software business > relational databases play a big role. > > Any takers for the next Pharo success story? ;) > > Bye > T. >

Oct. 2, 2015

Analysis/Visualizations of DBs

by Torsten Bergmann

Hi, we have many nice analysis and visualizations tools available (Moose, Roassal, ViDi, ...) Often it is focused on development or code. Also we have refactoring tools. What would be cool would be to have some tool for doing this on (relational) databases and included data: - visualize databases (tables, data clusters, number of columns, ...) - analyze tables on satisfying some (external) business constraints and consistency rules - refactoring of databases (moving, migrating colums, ...) - easy building reports/visualizations of included data (extract, query, filter, ...) What I think of is a tool where (after connecting to a possibly unknown database) you can easily get/build an overview on the design, quality and data of the database (similar to what Moose, ViDi does for code). Is there any research, projects, ... for data mining already in Pharo? I guess this could make up a great toolset with Pharo as a base and make it more known because in the software business relational databases play a big role. Any takers for the next Pharo success story? ;) Bye T.

Oct. 2, 2015

Spec LabelModel's #font: and other styles

by Peter UhnÃ¡k

Does it make sense to be able to specify font and similar at Spec-level? And not just font, also the size, color, or emphasis (which currently only emphasis is supported). >From one perspective it's handy, because I can change it at a whim, however I wonder whether this shouldn't be responsibility of some styler instead. Text as far as I know is capable of storing styled information. This would enable to outsource the style information to someone else (e.g. your stylesheet). However from practical perspective for the end user it would be extra work as it would add an indirection step. For TextModel that would be clearly better (because you might want to style different parts of text differently), however for LabelModel I'm not so sure. Any opinions? Thanks, Peter

Oct. 2, 2015

Re: [Pharo-users] Rubric events

by Miguel Campusano

Yes, I tried. For what I see is the that the text of the morph still have not been setter when this announcement is triggered On Fri, Oct 2, 2015 at 8:36 AM Alain Plantec via Pharo-users < pharo-users(a)lists.pharo.org> wrote: > Hello Miguel, > Did you tried to subscribe to RubTextUpdatedInModel through the model of > the morph (and not directly the morph) ? > Cheers > Alain > > > > On 30 Sep 2015, at 16:52, Miguel Campusano <mcampusa(a)dcc.uchile.cl> > wrote: > > > > Hello, > > I'm working on modifying the styling of text by using > RubTextSegmentMorph. The problem is that the text could be modified > dynamically by selecting another text, so the styling must be modified. > > I want to use the announcements system of Rubric but something weird > happens. When I subscribe to the announce RubTextUpdatedInModel of the > RubScrolledTextMorph, the styling sometimes works, sometimes doesn't. > > What I noticed in the method > RubScrolledTextMorph>>whenTextUpdatedInModel: > > the announcement is done before setting the text in the morph and if I > change this to make the announcement after setting the text, everything > works fine. > > > > So my question is: > > Is there something special to announcer the set of the text before > actually setting it? Is it ok to change it? > > OR > > Is another way to do what I want to do? > > > > Bests, > > Miguel > > >

Oct. 2, 2015

Re: [Pharo-users] GTInspector: add view tab for custom object

by Mark Rizun

Yes, thanks for help. 2015-10-02 12:03 GMT+03:00 Andrei Chis <chisvasileandrei(a)gmail.com>: > Hi Mark, > > There is an initializeView: method that you could you use to create a > custom view > > composite roassal2 > title: 'Complexity'; > titleIcon: MooseIcons mooseSystemComplexity; > initializeView: [ RTMondrian new ]; > painting: [ :view :each | > "build views" ] > > Does this help? > > Cheers, > Andrei > > On Fri, Oct 2, 2015 at 10:47 AM, Mark Rizun <mrizun(a)gmail.com> wrote: > >> Hi everyone, >> >> I would like to extend GTInspector for custom object - add a roassal view >> tab. >> I found this kind of code to do this: >> >> gtInspectorViewIn: composite >> <gtInspectorPresentationOrder: 40> >> composite roassal2 >> title: 'View'; >> painting: [ :view | self viewOn: view ] >> >> The problem is, that I want to use a view that I already have, but not the >> one which is passed as an argument to block [ :view | self viewOn: view ]. >> It should be simple. Am I missing something? >> >> Best regards, >> Mark >> >> >> >> -- >> View this message in context: >> http://forum.world.st/GTInspector-add-view-tab-for-custom-object-tp4853161.… >> Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. >> >> >

Oct. 2, 2015

Re: [Pharo-users] GTInspector: add view tab for custom object

by Andrei Chis

Hi Mark, There is an initializeView: method that you could you use to create a custom view composite roassal2 title: 'Complexity'; titleIcon: MooseIcons mooseSystemComplexity; initializeView: [ RTMondrian new ]; painting: [ :view :each | "build views" ] Does this help? Cheers, Andrei On Fri, Oct 2, 2015 at 10:47 AM, Mark Rizun <mrizun(a)gmail.com> wrote: > Hi everyone, > > I would like to extend GTInspector for custom object - add a roassal view > tab. > I found this kind of code to do this: > > gtInspectorViewIn: composite > <gtInspectorPresentationOrder: 40> > composite roassal2 > title: 'View'; > painting: [ :view | self viewOn: view ] > > The problem is, that I want to use a view that I already have, but not the > one which is passed as an argument to block [ :view | self viewOn: view ]. > It should be simple. Am I missing something? > > Best regards, > Mark > > > > -- > View this message in context: > http://forum.world.st/GTInspector-add-view-tab-for-custom-object-tp4853161.… > Sent from the Pharo Smalltalk Users mailing list archive at Nabble.com. > >

Oct. 2, 2015

Re: [Pharo-users] Is RubMethodEditingExample supposed to work?

by Stephan Eggermont

On 02-10-15 08:27, Nicolai Hess wrote: > Maybe it was supposed to work but isn't finished? > There is another example > RubPluggableTextMorphExample > That one can save changes. Ah, then I'll take a look at that one Stephan

Oct. 2, 2015