I had a dropdown field with a handle of hLevel, with only numeric values in it, anticipating that I could do math with the values in my template. But it seems I can't.

{% set dif = subhead.hLevel - subhead.next.hLevel %}

…returns an error message ending in:

“could not be converted to int”

I found a thread convinced that number_formatconverts a string to a number”, so I tried that:

{% set dif = subhead.hLevel|number_format - subhead.next.hLevel|number_format %}

…but that doesn't work either. The error message changes to:

“could not be converted to double”

Which doesn't surprise me as I did think that number_format is for float to formatted string conversion, not the other way round as well. ¯\_(ツ)_/¯

When I change the field format to number everything works fine, but…

It would be good if there is an option to have dropdown field values be parsed as numbers, because from a UX perspective I would prefer that the field is a dropdown.

Or is there some workaround I've missed?

1 Answer 1


Have you tried subhead.hLevel.value?

  • Doh! I am an idiot. That works. Thanks Olivier :) Commented Feb 1, 2019 at 18:26
  • 1
    @JonathanSchofield Happened to me, that's the only reason I picked up on it ;) Glad I could help
    – Oli
    Commented Feb 1, 2019 at 18:30

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