Reply To: Validation of a field based on the value of another field

• linkhousemedia

• January 31, 2017 at 3:08 am

This helped me immensely. God bless you. Here’s a solution using a repeater field as one of the fields to confirm a total of 100%, in case it helps anyone.

add_filter('acf/validate_value/key=field_582494bd7b140', 'my_validate_function', 10, 4);

function my_validate_function($valid, $value, $field, $input) {
	
	// bail early if value is already invalid
	if( !$valid ) {
		
		return $valid;
		
	}	
	
	$mv_commission 		= $_POST['acf']['field_582494bd7b140'];
	$vendor_commission	= $_POST['acf']['field_58249ac80b697'];
	$other_commissions	= $_POST['acf']['field_582492287b13c'];
	
	if ( is_array($other_commissions) ) {
		foreach($other_commissions as $commission){
			$other_total += $commission['field_582494367b13e'];
		}
	}

	$commission_total = $mv_commission + $vendor_commission + $other_total;
	
	if ( $commission_total !== 100 ) {
		return "Error: The total commissions for a voucher must equal 100%. The total commissions set on this voucher currently equal $commission_total%.";
	}

	return $valid;

}