bookends-index_selection_dtpo.scpt

tell application "Bookends"
	set theIDs to «event ToySRUID» "Selection"
	repeat with theID in paragraphs of theIDs
		tell front library window
			try
				set myRefs to (publication items whose id is theID)
				set myItem to first item of myRefs
				set thePath to path of attachment items of myItem
				if thePath is not {} then
					set {theKey, theAuthor, theEditor, theTitle} to {citekey, authors, editors, title} of myItem
					if theAuthor = "" then set theAuthor to theEditor
					set theRIS to format myItem using "RIS.fmt"
					set otid to AppleScript's text item delimiters
					set AppleScript's text item delimiters to linefeed
					set thePath to text items of thePath
					repeat with i in thePath
						set thisPath to i as string
						tell application "Finder" to set theName to name of (POSIX file thisPath as alias)
						set AppleScript's text item delimiters to otid
						
						try
							if (characters -4 thru -1 of theName as string) is ".pdf" then do shell script "/usr/local/bin/exiftool -title=" & quoted form of theTitle & " -author=" & quoted form of theAuthor & " -subject=" & theKey & " -overwrite_original " & quoted form of thisPath
						end try
						
						tell application id "DNtp"
							set theDatabase to open database "/aUsers/zhope/DTPO/Research.dtBase2"
							set theLocation to create location "/Library"
							set theRecord to indicate thisPath to theLocation
							set URL of theRecord to ("bookends://sonnysoftware.com/" & theID) as text
							set aliases of theRecord to theKey
							set comment of theRecord to theRIS
							set theLink to reference URL of theRecord
						end tell
						
					end repeat
					
					set user20 of myItem to theLink
					
				end if
				
			on error errorMessage
				
			end try
			
		end tell
	end repeat
end tell

I am getting an error "Can't get item 1 of {}" when multiple items are selected.

Yes, I hadn't tested this version on multiple selections as I mostly use the group version, but this should now work on multiple items (and now even knows to bypass those without attachments).