April 2016 - Pharo-users - lists.pharo.org

Re: [Pharo-users] [ANN] SpecGenerator: easy CRUD applications with Spec

by Robert J Rothwell

On Apr 12, 2016, at 4:35 PM, Stephan Eggermont <stephan(a)stack.nl> wrote: > > Yeah, this is just the first iteration. > The field labels get used as ghost text now, > conserving space. That is an easy change > in the code generation. Hi Stephan, With the availability of Spec, this latest example, and your previous examples (Drag Panels, Cards, MorphicDraw), I feel like I am one (theoretical) step away from understanding how to create a Spec UI Widget Builder/code generator. I try not to let my heavy VB past influence me too much when it is not appropriate, but the idea of dragging widgets to a canvas, using some tools to apply layouts, and knowing what event messages are available to you appeals greatly to me. I've always wanted to try that, and it seems quite possible now. Thank you! Rob

April 13, 2016

Re: [Pharo-users] SQLite bridge crashed Pharo 5.

by Mariano Martinez Peck

What looks not related to memory issue is that the crash seems to happen in #close: Smalltalk stack dump: 0xffc655d4 SqliteLibrary>close: 0x9726108: a(n) SqliteLibrary 0xffc655f4 SQLiteConnection>close 0xc672d08: a(n) SQLiteConnection 0xffc65610 SQLiteConnection>finalize 0xc672d08: a(n) SQLiteConnection 0xffc65630 WeakFinalizerItem>finalizeValues 0xc692b60: a(n) WeakFinalizerItem The idea is obvious...and I did exactly the same for SqueakDBX (now OpenDBXDriver / Garage).... register the connections into the WeakRegistry so that they are automatically closed without having the user to manually do so. I remember I had a case where the user WAS already doing an explicit close and I would crash very much like this case when I was trying to close a connection that was already closed. I don't have Sqlite library handy, but could it be something similar? On Tue, Apr 12, 2016 at 9:49 PM, Offray Vladimir Luna CÃ¡rdenas < offray.luna(a)mutabit.com> wrote: > Hi, > > On 12/04/16 16:51, Stephan Eggermont wrote: > >> On 12/04/16 22:44, Offray Vladimir Luna CÃ¡rdenas wrote: >> >>> I'm working with visualizations a external dataset which contains 270k >>> records. So the best strategy seems to bridge pharo with SQLite to keep >>> requirements low while using Roassal to visualize aggregated information >>> that is obtained from querying the database. >>> >> >> It won't fit in image? >> >> > I tried with RTTabTable and NeoCVS but they can not load the data. I made > a test drawing 150k points and the image starts to lag and trying to query > the data becomes inefficient compared to query the data on SQLite. For the > moment I'll export the query results to CVS, but I'll hope to have the > SQLite bridge working soon. > > Offray > > -- Mariano http://marianopeck.wordpress.com

April 13, 2016

Re: [Pharo-users] SQLite bridge crashed Pharo 5.

by Offray Vladimir Luna CÃ¡rdenas

Hi, On 12/04/16 16:51, Stephan Eggermont wrote: > On 12/04/16 22:44, Offray Vladimir Luna CÃ¡rdenas wrote: >> I'm working with visualizations a external dataset which contains 270k >> records. So the best strategy seems to bridge pharo with SQLite to keep >> requirements low while using Roassal to visualize aggregated information >> that is obtained from querying the database. > > It won't fit in image? > I tried with RTTabTable and NeoCVS but they can not load the data. I made a test drawing 150k points and the image starts to lag and trying to query the data becomes inefficient compared to query the data on SQLite. For the moment I'll export the query results to CVS, but I'll hope to have the SQLite bridge working soon. Offray

April 13, 2016

Re: [Pharo-users] Conditional external dependencies in a Metacello BaselineOf?

by Damien Pollet

Oh, nice! Just to be sure, because 2:15am is not the best time to start playing with codeâ¦ if I understood correctly, I'd load the depended-upon baseline from gitfiletree, lock it, and then that would take precedence over the github:// repo specified in the baseline of the main project? I'll try tomorrow, thanks :) On 13 April 2016 at 00:38, Dale Henrichs <dale.henrichs(a)gemtalksystems.com> wrote: > Damien, > > You want to use a a lock[1]. Look at the section on locking a > `filetree://` repo [2]--- should be similar for locking your gitfiletree > repo ... > > When you load you may want to use `onWarningLog`, because locks do > generate Warnings telling you the the lock is being honored (i.e., the load > is taking place from the local clone, not github as specified in the > baseline) ... > > Dale > > [1] > https://github.com/dalehenrich/metacello-work/blob/master/docs/LockCommandR… > [2] > https://github.com/dalehenrich/metacello-work/blob/master/docs/LockCommandR… > > > On 04/12/2016 11:18 AM, Damien Pollet wrote: > >> I have a couple projects that I develop together; the first depending on >> the second, and both managed on GitHub (in separate repositories). >> >> The BaselineOf therefore expresses the dependency using repository: >> 'github://â¦' >> However, I'd like to locally change that to gitfiletree:// so that I can >> build new development images from scratch, with both projects ready to >> commit to gitfiletree, with minimal repo juggling and code reloading ? >> >> Is there a way to achieve that? Metacello project attributes? a git >> submodule? >> >> -- >> Damien Pollet >> type less, do more [ | ] http://people.untyped.org/damien.pollet >> > > >

April 13, 2016

Re: [Pharo-users] Conditional external dependencies in a Metacello BaselineOf?

by Dale Henrichs

Damien, You want to use a a lock[1]. Look at the section on locking a `filetree://` repo [2]--- should be similar for locking your gitfiletree repo ... When you load you may want to use `onWarningLog`, because locks do generate Warnings telling you the the lock is being honored (i.e., the load is taking place from the local clone, not github as specified in the baseline) ... Dale [1] https://github.com/dalehenrich/metacello-work/blob/master/docs/LockCommandR… [2] https://github.com/dalehenrich/metacello-work/blob/master/docs/LockCommandR… On 04/12/2016 11:18 AM, Damien Pollet wrote: > I have a couple projects that I develop together; the first depending > on the second, and both managed on GitHub (in separate repositories). > > The BaselineOf therefore expresses the dependency using repository: > 'github://â¦' > However, I'd like to locally change that to gitfiletree:// so that I > can build new development images from scratch, with both projects > ready to commit to gitfiletree, with minimal repo juggling and code > reloading ? > > Is there a way to achieve that? Metacello project attributes? a git > submodule? > > -- > Damien Pollet > type less, do more [ | ] http://people.untyped.org/damien.pollet

April 12, 2016

Re: [Pharo-users] SQLite bridge crashed Pharo 5.

by Stephan Eggermont

On 12/04/16 22:44, Offray Vladimir Luna CÃ¡rdenas wrote: > I'm working with visualizations a external dataset which contains 270k > records. So the best strategy seems to bridge pharo with SQLite to keep > requirements low while using Roassal to visualize aggregated information > that is obtained from querying the database. It won't fit in image? Stephan

April 12, 2016

SQLite bridge crashed Pharo 5.

by Offray Vladimir Luna CÃ¡rdenas

Hi all, I'm working with visualizations a external dataset which contains 270k records. So the best strategy seems to bridge pharo with SQLite to keep requirements low while using Roassal to visualize aggregated information that is obtained from querying the database. That seemed working fine for a while, but just a few minutes ago my image started to crash and after a while it crashed beyond being useful (it doesn't start anymore). I have added the crash dump file, to see if anyone of you can help me making sense of it and trying to detect where is the failure. I imagine that there is something wrong about the way I'm making the query This is the suspect method: ==================== totalOffshoresByCountry "I load the offshores data from a SQLite database or cvs file" | queryResults | self dataLocation exists ifFalse: [ self downloadData ] ifTrue: [ database := (SQLiteConnection fileNamed: dataLocation fullName ) open. queryResults := database executeQuery: 'SELECT country_name, COUNT(*) AS "total_offshores" FROM (SELECT country_name, Description_ FROM nodesNW INNER JOIN node_countriesNW ON nodesNW.Unique_ID = node_countriesNW.NODEID1 ORDER BY country_name) GROUP BY country_name']. ^ queryResults ==================== I have restarted a new image, but I can not remember which package provides SQLiteConnection. I imagine is some migration of NBSQLite under UFFI, but I can not find it in the pharo catalog. Any help with this is welcomed. Cheers, Offray

April 12, 2016

Re: [Pharo-users] [ANN] SpecGenerator: easy CRUD applications with Spec

by Stephan Eggermont

On 12/04/16 22:27, Johan Fabry wrote: > > Thatâs a cool idea and great to see it in action! Thanks. > One suggestion though: how about adding titles to the editor windows, > to help the user in what he/she is filling in. Yeah, this is just the first iteration. The field labels get used as ghost text now, conserving space. That is an easy change in the code generation. Stephan

April 12, 2016

Re: [Pharo-users] [ANN] SpecGenerator: easy CRUD applications with Spec

by Johan Fabry

Thatâs a cool idea and great to see it in action! One suggestion though: how about adding titles to the editor windows, to help the user in what he/she is filling in. > On Apr 12, 2016, at 17:05, Stephan Eggermont <stephan(a)stack.nl> wrote: > > Sometimes you just want to quickly create an application > for data entry, without spending too much time constructing > forms and lists. Wouldn't it be great if you could build > something while talking to a client, and directly show > the results? > > SpecGenerator helps you with this. > > It needs the SelectEntity widget that you can get by > loading Ancestry from the catalog, and can be found > on smalltalkhub in StephanEggermont/SpecGenerator > > https://vimeo.com/162589115 > > Stephan > > > > ---> Save our in-boxes! http://emailcharter.org <--- Johan Fabry - http://pleiad.cl/~jfabry PLEIAD and RyCh labs - Computer Science Department (DCC) - University of Chile

April 12, 2016

Re: [Pharo-users] List with Border

by Stephan Eggermont

On 12/04/16 21:58, Rob Rothwell wrote: > Would you consider this a Priority 4 "Would be nice" like Issue 17743 > and 17754? (I have been looking for things at my skill level I might > actually be able to track down). All pluggable morphs behave badly with this. They all are themed ignoring manual overrides. They are also used all over the UI, so you'd probably need to work with subclasses to avoid breaking the system. I think it should be a level 3/2 problem, and is too large to be achievable before the release of Pharo 5. It definitely is a more difficult problem than the one you fixed, and is also a very annoying one, so would be very welcome to be fixed. Stephan

April 12, 2016