[capink]

Originally Posted by Dzib

Works fine, thanks

Append the following code under the run() method:

        col_name = '#custompath'
        db = gui.current_db
        id_path_map = {}
        for book_id in chain.scope().get_book_ids():
            fmt_paths = []
            fname = chain.evaluate_template(opts.template, book_id)
            if single_dir:
                fname = os.path.basename(fname)
            if opts.formats == 'all':
                formats = db.formats(book_id, index_is_id=True)
            else:
                formats = settings['formats']
            for fmt in [fmt.strip().lower() for fmt in formats.split(',')]:
                fmt_paths.append(os.path.join(path, f'{fname}.{fmt.lower()}'))
            id_path_map[book_id] = ','.join(fmt_paths)
        db.new_api.set_field(col_name, id_path_map)

Note: If you save more than one format per book, the above code will add them all to the custom column as comma separated list.

Originally Posted by Dzib

Another question, not related : if I make a new chain with open with action, how to use the serie in the template but only if it's not null ?
I've tried with an if else statement but it's not working

Consult the template language manual under the "Conditionally including text" section.