/**
  * Reverse the migrations.
  *
  * @return void
  */
 public function down()
 {
     NestedSet::dropColumns($table);
     Schema::drop('ticket_departments');
 }
 /**
  * Reverse the migrations.
  */
 public function down()
 {
     Schema::drop('comments');
     NestedSet::dropColumns('comments');
 }
 /**
  * Reverse the migrations.
  *
  * @return void
  */
 public function down()
 {
     Schema::drop('library_categories');
     NestedSet::dropColumns($table);
 }