HTML::FormFu::Filter::ForceListValue - convert a single value into a 1-item-list
element: - type: Repeatable increment_field_names: 0 elements: - name: foo render_processed_value: 1 filter: - ForceListValue
Causes a single submitted value to be changed to a list containing 1 item.
Solves an uncommon problem with a Repeatable block with increment_field_names disabled, when manually increasing the repeat count after the form was submitted with only a single value for each of the Repeatable's fields.
If these circumstances, when rendered, every repeated field would have the initially-submitted value as its default.
Using this filter, and setting render_processed_value to
true will ensure that only the first repetition of each field will have the submitted value as its default; all subsequent repetitions will have no default value.
This library is free software, you can redistribute it and/or modify it under the same terms as Perl itself.