public function getCategoryLang($lang, $create_it = false) { $model = !empty($this->id) ? CategoryLang::findOne(['category_id' => $this->id, 'lang' => $lang]) : null; if (is_null($model) && !empty($this->id) && $create_it) { $model = new CategoryLang(); $model->category_id = $this->id; $model->lang = $lang; } return $model; }