Make smart playlists in iTunes?

Question

Is it possible to do this? I have a pile of unsmart PLs that I want to convert to smart ones. I've got a scpt going that basically does the job, but although I say
make user playlist with properties {smart: true, name:PLname}
they always come out unsmart.
I note that the iTunes dictionary says smart is r/o, but surely for a new PL I'm just making, I can say smart:true ?

Answer 1

In case anyone else wants to do what I did, here's the final form of my scpt. But it has a couple of bug workarounds, so it may not work beyond iTunes 8.1.1 (6). Good luck!
(* Make smart PLs from unsmart Composer-based *)
(* Doesn't test if unsmart PL name actually IS a composer contained in Music PL. Would take too long. *)
(* - - - - - - - >>> !!!! TURN OFF AirPort !!!!! <<<- - - - - - - else you can get killed by e.g. Software Update *)
tell application "iTunes"
delay 3 -- Delay 3secs to get a chance to click the iT window after launching the scpt.
set allPLs to (get every user playlist)
repeat with thisPL in allPLs
if name of thisPL is not "Music" then
(* extract 1st word (surname) of unsmart PL name... *)
if smart of thisPL is false then
set comp to name of thisPL
set comp to words of comp -- ludicrous - takes 4 operations to get word out of Unicode text
set comp to (comp as string)
ignoring hyphens
set AppleScript's text item delimiters to " " --necessary for words
set comp to word 1 of comp -- got 1st word at last
end ignoring
tell application "System Events" to tell process "iTunes"
delay 0.5
keystroke "n" using {option down, command down} ---- <---- <---- create New smart PL
(* change Artist to Composer *)
delay 0.5
tell scroll area 1 of group 1 of window 1
delay 0.5
click pop up button 2
delay 0.5
click menu item "Composer" of menu 1 of pop up button 2 -- Change Artist to Composer
delay 0.5
keystroke comp & quote -- the quote stops iT auto-complete filling in the whole name etc. See ASCII below
(*Cursor is still in TF1 of SA1 of G1 of W1, so keystroke comp works almost regardless of where we are*)
end tell
(* Change Random to Album *)
delay 0.5
click pop up button 1 of window 1
delay 0.5
click menu item "Album" of menu 1 of pop up button 1 of window 1
(* as soon as you change above menu item, Checkbox 3 (to left of 25) gets set. Bug?
Solution: Click Checkbox 3 of w1 later (below)
It seems NOTHING can change the 25 to e.g. 999 (another bug?) *)
(* Now we can complete the Composer *)
delay 0.5
keystroke (ASCII character 8) -- rubout the quot in the PL name with a Backspace character
(* workaround the Limit to 25 checkbox bug *)
delay 0.5
click checkbox 3 of window 1 -- uncheck the "limit to 25"
(* The above WILL DO THE REVERSE OF WHAT I WANT if they ever fix the bug above *)
(* finish comp and close the New SPL window *)
delay 0.5
keystroke return
(* Now we need a Return to finish the new SPL Name in the sidebar *)
delay 1
keystroke return
end tell
end if
end if
end repeat
end tell
beep 3 -- Say we're all done
tell application "Script Editor" -- TEST
activate
end tell*)
As I said, Good luck!
David Whitford