getPK()}|{$this->getID()}|{$this->getTitle()}"; } public function setTitle(string $title): void { $this->attributes[Model::TITLE] = $title; } //Common Function public function getParent(): int|null { return $this->attributes[Model::PARENT]; } public function getID(): string { return $this->attributes['id']; } public function getSite(): string { return $this->attributes['site']; } public function getEmail(): string { return $this->attributes['email']; } }