Comment on 'Bending iTunes to my will with RubyOSA: take 1' by Federico Zagarzazú

2007-09-16T23:36:33Z

Hi,

Just to let you know that you can also use CocoaDialog for displaying confirmations, this is what I use in tagloko1.

[1] tagloko.rubyforge.org

Bye, thanks for the info,

Federico

Comment on 'Bending iTunes to my will with RubyOSA: take 1' by has

2007-07-03T22:01:27Z

“1. I can’t figure out how to delete and add the track through RubyOSA. There is a delete method on the track, but doesn’t appear to do anything.”

I don’t know about RubyOSA, but to add a file to iTunes using rb-appscript (example code):

require 'appscript'
include Appscript

Itunes = app('iTunes')

Itunes.add(MacTypes::Alias.path('/Users/foo/lizard scum.mp3'))

That’ll add it to your main library only. If you want to add it to a user playlist as well, specify that playlist via the optional ‘to’ parameter:

Itunes.add(MacTypes::Alias.path('/Users/foo/lizard scum.mp3'), :to=>app.playlists['MyList'])

To delete a track from a user playlist (example code):

track_ref = Itunes.playlists['MyList'].tracks['Goodbye you lizard scum']
track_ref.delete

If you want to delete the track completely from your library, you’ll need to reference it there:

 
Itunes.library_playlists[1].tracks['Goodbye you lizard scum'].delete

BTW, if you want to delete a track completely but all you’ve got is a reference to it in a user playlist, get its database ID and then use a ‘whose’ clause to locate that track in the main library:

user_playlist_track_ref = Itunes.playlists['MyList'].tracks['Goodbye you lizard scum']

db_id = user_playlist_track_ref.database_ID.get
library_track_ref = Itunes.library_playlists[1].tracks[its.database_ID.eq(db_id)].first.get

You can then call #delete on that reference to delete the track completely.

“2. I want the script to display a dialog confirming the actions about to take place.”

In appscript:

#!/usr/local/bin/ruby

require 'osax'

standard_additions = OSAX.osax

standard_additions.display_dialog('Hello world!')

If you want the dialog to appear in a specific application, e.g. iTunes:

standard_additions = OSAX.osax.by_name('iTunes')

standard_additions.activate
standard_additions.display_dialog('Hello world!')

“3. I want to be able to execute the script from the Scripts menu in iTunes, which appears to involve installing OSA Components.”

I don’t think that’ll work – in order to send Apple events to the host application, you need an OSA component that provides integrated support for this, which the RubyOSA component (no relation to the RubyOSA Apple event bridge) doesn’t. The only third-party components that currently do this are JavaScriptOSA (although it has a number of other flaws that limit its usefulness) and PyOSA (which is still under development and not quite ready for general use).

The simplest solution would be to put your script into the system-wide Script Menu (which accepts shell scripts as well as AppleScripts, so no need for an OSA component). Use /Applications/AppleScript/AppleScript Utility.app to enable it if you’ve not already done so, then put your .rb script in ~/Library/Scripts.

Alternatively, write an AppleScript that uses ‘do shell script’ to start your .rb script and then detach the ruby process so that the ‘do shell script’ command returns immediately.

HTH

has

http://appscript.sourceforge.net http://rb-appscript.rubyforge.org

Comment on 'Bending iTunes to my will with RubyOSA: take 1' by Conrad

2007-07-01T06:28:47Z

I think the reason you can’t delete the track is because you do a get

itunes.selection.get.each do |track|

This converts the specifier list object (i.e. reference to the tune in iTunes) to an actual MP3, which I think is no longer connected to iTunes.

If you did

itunes.selection.each do |track|

then I think you would be able to do itunes.delete(track) BUT I think you might then have problem with the ID3 tags :-)

There is some info on this sort of thing here

http://rubyosa.rubyforge.org/guide/object-specifiers.html

opensoul.org - Bending iTunes to my will with RubyOSA: take 1 Comments

Comment on 'Bending iTunes to my will with RubyOSA: take 1' by Federico Zagarzazú

Comment on 'Bending iTunes to my will with RubyOSA: take 1' by has

has

Comment on 'Bending iTunes to my will with RubyOSA: take 1' by Conrad