Getting a file to read/write in Applescript

[sts24]

I need to know what is wrong with this script:

on will quit theObject
set savepath to do shell script "whoami"
set pathName to "Users:" & savepath & ":Library:Application Support:Note2Self:mainnote.n2s"
set theData to contents of text view "text" of scroll view "text" of window "main" as string
set theFile to open for access pathName with write permission
write theData to theFile as string
close access theFile
return true
end will quit

I can get the thing to write a file, but the contents of the text view "text" doesn't write to the file. I was also wondering how to read this same file on launch. I can't get that to read. Is there an applescript command to overwrite a file so that on each quit, the file updates what is in the text view. Then on the next launch, it will open that same file in the text view "text".

Any help, thanks.

[Vocal Velocity]

here is a handler that does the trick for me.

on write_to_file(this_data, target_file_path)
try
set the target_file_path to the target_file_path as text
set the open_target_file to open for access the file target_file_path with write permission
set eof of the open_target_file to 0 --> remove this line if you want written data appended to existing data
write this_data to the open_target_file starting at eof
close access the open_target_file
return true
on error
try
close access the open_target_file
end try
return false
end try
end write_to_file