public function extend(Collection $collection)
    {
        foreach ($collection as $entity) {
            $this->append($entity);
        }
        return $this;
    }
public function extend(Collection $collection)
    {
        foreach ($collection as $entity) {
            $this->append($entity);
        }
        return $this;
    }
public function extend ( Collection $ collection ) { foreach ( $ collection as $ entity ) { $ this -> append ( $ entity ) ; } return $ this ; }
Extend collection with entities from another one

@param Collection $data
@access public

@return static
Extend collection with entities from another one