/**
* Adds the specified element to this set if it is not already present (optional operation).
*
* @param mixed $element
* @return bool true if this set did not already contain the specified element
*/
public function add($element)
{
if ($this->contains($element)) {
return false;
}
return parent::add($element);
}
/**
* Adds an model to this collection.
* Is used during initial collection construction.
*
* @param Model $model
* @return self
*/
protected function add(Model $model)
{
parent::add($model);
if (false === $this->hasOriginal($model)) {
$this->original[] = $model;
}
return $this;
}
