Populate a form field with the sum of any other two integer fields.
Fragment Callback
This callback requires these references to already exist:
‘integer_1’ – A field path reference to the first Integer field date field, which must be present in the form
‘integer_2’ – A field path reference to the second Integer date field, which must be present in the form
The callback can then be applied to any other Integer field on the form which should be populated with the sum of the above two Integer fields, and should be triggered by changes to either of those fields.