Example #1
0
 public function insertPrevious($name, $object)
 {
     $previous = new self($name, $object);
     $previous->setNext($this);
     if ($this->isFirst()) {
         $previous->setPrevious(null);
     } else {
         $this->previous->setNext($previous);
         $previous->setPrevious($this->previous);
     }
     $this->setPrevious($previous);
     return $this;
 }