1 files changed, 8 insertions, 1 deletions
diff --git a/classes/iterators/IsisSubfieldIterator.php b/classes/iterators/IsisSubfieldIterator.php
index 36d3d06..7e01687 100644
--- a/classes/iterators/IsisSubfieldIterator.php
+++ b/classes/iterators/IsisSubfieldIterator.php
@@ -21,8 +21,15 @@ class IsisSubfieldIterator implements Iterator
    *
    * @param $field
    *   Field to iterate over.
+   *
+   * @param $main
+   *   Control to which subfield the main field should be mapped to.
+   *   By default no mapping is made.
+   *
+   * @todo
+   *   Implement $main mapping.
    */ 
-  public function __construct($class, $field) {
+  public function __construct($class, $field, $main = false) {
     $this->class     = $class;
     $this->field     = $field;
     $this->rows      = $class->getRows($field);