Three solutions. I used #series for #readorder.
1) Use GPM and the template function:
Code:
program:
if field('#series') then
template('Reading List: {#series} #{#series_index:0>2s}')
fi
2) Use a normal template, which is probably a bit faster than 1) because it avoids the nested template call
Code:
{#series:|Reading List: |}{#series_index:0>2s| #|}
3) Use GPM but avoid the call to template(). This will be the fastest if it is used as a rule or a composite column template.
Code:
program:
f = field('#series');
if f then
strcat(
'Reading List: ', f, ' #',
format_number(field('#series_index'), '0>2d')
)
fi