[capink]

Originally Posted by chaley

You're correct: composite columns (built from other columns) can't show stars. However, it would be easy to do a search and replace, copying the "identifier" rating to a custom rating column. This could be done automatically using action chains when books are imported.

You made the template language flexible enough to display rating (I shouldn't be telling you that )

program:
    rating = $rating;
    text = '';
    for x in range(0,rating):
        text = text & '★'
    rof

The line highlighted in blue should be edited to fetch rating from the appropriate column

Edit: Thinking about this, I was about to suggest a rating_to_stars() function, only to discover it is already there, and it uses halfstars as well.