validate a repeater field

• marathra

• July 22, 2019 at 1:41 am

I’m trying to work out how to validate a repeater field. The first field contains a minimum age; the second field contains a maximum age. I want to validate the minimum age by comparing it to the maximum age.

With the “normal” (not repeater) field I use this.

add_filter('acf/validate_value', 'my_validate_form', 10, 4);
function my_validate_form( $valid, $value, $field, $input ){

	if ( $field['name'] == 'min_age' ) {
  
		// get the value of max age
		$maxAge = $_POST['acf']['field_5d28712c42a47'];

		if ( $value > $maxAge )
			return "min is greater than max";
		else
			return true;
		}
	}
	return true;
}

But this isn’t working with repeater rows. In this case I am trying to find out how to firstly get the value of the specific min/max ages on a row, and then return an error message just for that row.

Any help appreciated! 🙂