I’m attempting to add keywords to images in Bridge using the following script. Unfortunately, the only AppleScript command Bridge understands is “do JavaScript” So, I have to write the part that actually adds keywords in JavaScript.
I added a JavaScript alert at the end of the JavaScript part to test if the AppleScript variables are successfully being passed to JavaScript. That part works. The event replies in the AppleScript editor show that it is also trying to work with the correct file. It also doesn’t give me any errors. Still, the keywords are not being added in Bridge. I’m guessing something needs to change in the JavaScript part at the bottom of the code, but I’ve had very minimal experience with JavaScript.
Any help would be greatly appreciated. 
with timeout of 900 seconds
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--GETTING THE CHARACTERS OF THE FILENAME
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tell application "Finder" to set myFolder to choose folder with prompt "Select folder"
tell application "Finder" to set myFiles to (every file of folder myFolder whose name extension contains "tif") as alias list
repeat with afile in myFiles
tell application "Finder"
set fileName to name of afile
end tell
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--ADDING A KEYWORD FOR EACH PREFIX
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--Finding the prefix in the filename
if text 1 thru 2 of fileName contains "AG" then
set prefixKeyword to "Agriculture"
else if text 1 thru 2 of fileName contains "AU" then
set prefixKeyword to "Automotive"
else if text 1 thru 2 of fileName contains "BI" then
set prefixKeyword to "Bicycle"
else if text 1 thru 2 of fileName contains "SG" then
set prefixKeyword to "Sporting Goods"
else if text 1 thru 2 of fileName contains "TY" then
set prefixKeyword to "Toy"
else
set prefixKeyword to "Need prefix"
end if
--Calling the addKeyword handler at the bottom of the script to add the prefix as a keyword
my addKeyword(afile, prefixKeyword)
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--ADDING A KEYWORD FOR EACH SKU NUMBER
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--Creating a list of all single digit numbers
set numberList to {"0", "1", "2", "3", "4", "5", "6", "7", "8", "9"}
--CHECKING FOR THE SKU NUMBER
--Checking for a six digit number that starts on the third character of the filename
if numberList contains (text 3 of fileName) and numberList contains (text 4 of fileName) and numberList contains (text 5 of fileName) and numberList contains (text 6 of fileName) and numberList contains (text 7 of fileName) then
if numberList does not contain text 9 of fileName then
if numberList contains (text 8 of fileName) then
set skuNumber to text 3 thru 8 of fileName
set skuNumberOffset to 8
end if
end if
--Checking for a six digit number that starts on the fourth character of the filename
else if numberList contains (text 4 of fileName) and numberList contains (text 5 of fileName) and numberList contains (text 6 of fileName) and numberList contains (text 7 of fileName) and numberList contains (text 8 of fileName) then
if numberList does not contain text 10 of fileName then
if numberList contains (text 9 of fileName) then
set skuNumber to text 4 thru 9 of fileName
set skuNumberOffset to 9
end if
end if
--Setting the SKU Number Keyword to a warning keyword the user can search for if no SKU number is found
else
set skuNumber to "Need SKU Number"
set skuNumberOffset to 0
end if
--Calling the addKeyword handler at the bottom of the script to add the SKU number as a keyword
my addKeyword(afile, skuNumber)
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--ADDING DATE FROM FILENAME
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if fileName contains "(" and fileName contains ")" then
set leftParen to "("
set rightParen to ")"
--Getting the month from the filename
set monthOffset to (offset of leftParen in fileName) + 1 -->returns character right after (
set fileNameMonth to character monthOffset of fileName
--Getting all digits of the year from the filename
set fileNameYearOffset1 to (offset of leftParen in fileName) + 3
set fileNameYearOffset2 to (offset of rightParen in fileName) - 1
set fileNameYear1 to character fileNameYearOffset1 of fileName
set fileNameYear2 to character fileNameYearOffset2 of fileName
set fileNameYear to characters fileNameYearOffset1 thru fileNameYearOffset2 of fileName
set dateKeyword to fileNameMonth & "/" & fileNameYear
--Calling the addKeyword handler at the bottom of the script to add the date as a keyword
my addKeyword(afile, dateKeyword)
end if
end repeat
end timeout
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--HANDLER TO ADD KEYWORDS
on addKeyword(myFile, myKeyword)
tell application "Adobe Bridge CC"
activate
do javascript "
var Keys = '" & myKeyword & "';
var file = '" & myFile & "';
if(file.exists) setKeyword(file,Keys);
function setKeyword(file,Keys){
if ( !ExternalObject.AdobeXMPScript ) ExternalObject.AdobeXMPScript = new ExternalObject('lib:AdobeXMPScript');
var xmpf = new XMPFile( File(file).fsName, XMPConst.UNKNOWN, XMPConst.OPEN_FOR_UPDATE );
var xmp = xmpf.getXMP();
for(var s in Keys){
xmp.appendArrayItem(XMPConst.NS_DC, 'subject', Keys[s], 0,XMPConst.PROP_IS_ARRAY);
}
if (xmpf.canPutXMP( xmp )) {
xmpf.putXMP( xmp );
}
xmpf.closeFile( XMPConst.CLOSE_UPDATE_SAFELY );
};
//Displaying an alert to check if it's passing in the AppleScript variables
alert(Keys);
/**/"
end tell
end addKeyword
Browser: Firefox 47.0
Operating System: Mac OS X (10.10)