100], [['prefix'], 'string', 'max' => 50], [['importer_id', 'brand', 'prefix'], 'unique', 'targetAttribute' => ['importer_id', 'brand', 'prefix'], 'message' => 'The combination of Importer ID, Brand and Prefix has already been taken.'] ]; } /** * @inheritdoc */ public function attributeLabels() { return [ 'id' => Yii::t('app', 'ID'), 'importer_id' => Yii::t('app', 'Importer ID'), 'brand' => Yii::t('app', 'Brand'), 'prefix' => Yii::t('app', 'Prefix'), 'timestamp' => Yii::t('app', 'Timestamp'), ]; } }