/**
  * 
  * @param Picture $picture_
  * @throws InvalidArgumentException
  */
 public function updatePicture(Picture $picture_)
 {
     try {
         if (isset($this->table) && is_null($this->table)) {
             throw new InvalidArgumentException('Attribute "table" can\'t be NULL !');
         }
         if (isset($this->id) && !is_null($this->id)) {
             $where = 'id = ' . $this->id;
         }
         //Existance test
         $picture = $this->selectPicture();
         if (!emptyObjectMethod($picture)) {
             $picture = $this->selectPicture();
             $path = $picture->getPath();
             $title = $picture->getTitle();
             $ext = $picture->getExtension();
             if (file_exists(UPLOAD_PATH . $path . $title . '.' . $ext)) {
                 if (!is_null($picture_->getTitle()) && $title !== $picture_->getTitle()) {
                     if (!rename(UPLOAD_PATH . $path . $title . '.' . $ext, UPLOAD_PATH . $path . $picture_->getTitle() . '.' . $ext)) {
                         throw new Exception('A problem occurred when renaming !');
                     }
                 }
             }
         } else {
             throw new Exception('Picture doesn\'t exist !');
         }
         return parent::update($this->table, $picture_, $where);
     } catch (InvalidArgumentException $e) {
         print $e->getMessage();
         exit;
     } catch (Exception $e) {
         print $e->getMessage();
         exit;
     }
 }
 /**
  * 
  * @param Comment $comment_
  * @throws InvalidArgumentException
  */
 public function updateComment(Comment $comment_)
 {
     try {
         if (is_null($this->table)) {
             throw new InvalidArgumentException('Attribute "table" can\'t be NULL !');
         }
         if (isset($this->id) && !is_null($this->id)) {
             $where = 'id = ' . $this->id;
         }
         $comment = $this->selectComment();
         if (!emptyObjectMethod($comment)) {
             return parent::update($this->table, $comment_, $where);
         } else {
             throw new Exception('Comment doesn\'t exist !');
         }
     } catch (InvalidArgumentException $e) {
         print $e->getMessage();
         exit;
     } catch (Exception $e) {
         print $e->getMessage();
         exit;
     }
 }