Re: get properties treating variable as literal - lightbulb moment
Re: get properties treating variable as literal - lightbulb moment
- Subject: Re: get properties treating variable as literal - lightbulb moment
- From: Jaime Magiera <email@hidden>
- Date: Thu, 5 Oct 2006 07:53:46 -0400
It looks like there's a bit missing in between those two steps --
exactly how does uniqueKey get set, and what does it get set to? --
but if currentPreferencesArray came from read_from_preferences, and
uniqueKey is a string, say "displayName", then that will work.
It's possible to compact this further, and make it a bit faster to
boot, by not trying to evaluate the array too soon. For example:
on read_from_preferences(aFile, aPreference)
tell application "System Events"
return property list item aPreference of property list file
aFile -- the "of contents" is optional.
end tell
end R
set currentPreferencesArray to read_from_preferences(..., "Servers")
set uniqueKey to "displayName"
tell application "System Events"
-- look Ma, no loop!
get value of property list item uniqueKey of every property list
item of currentPreferencesArray
end tell
set currentUniqueKeys to the result
--> {"black", "yellow"}
Thanks Chris!
Excellent. I always forget about (....every item....) in Applescript.
Much better. One last question: How do you write incrementally? or
write over a value in a plist? I can get it to work for entries that
are empty (e.g. "servers" has no items in it). For example, using the
method outlined below, I can add an item to my "servers" plist item
if it is empty.
http://lists.apple.com/archives/applescript-users/2006/Sep/msg00013.html
However, I can't seem to write to the "servers" if it already has
items. The .plist is wiped clean and no errors are thrown.
By the way, are there any official Applescript examples of using
Property List Suite? If not, I'll contribute some to the wikis when
this project is over.
Jaime Magiera
Sensory Research Network
http://www.sensoryresearch.net
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