FieldType::SINGLE_LINE_TEXT, self::FIELD_CUSTOMER_CODE => FieldType::NUMBER, self::FIELD_CUSTOMER_NAME => FieldType::SINGLE_LINE_TEXT, self::FIELD_RECEIPT_CUSTOMER_NAME => FieldType::SINGLE_LINE_TEXT, self::FIELD_RECEIPT_PURPOSE => FieldType::SINGLE_LINE_TEXT, self::FIELD_RECEIPT_TOTAL_AMOUNT => FieldType::NUMBER, self::FIELD_RECEIPT_PDF_FILE => FieldType::FILE, ]; protected const FIELD_NAMES = [ ...parent::FIELD_NAMES, ]; protected const RELATIONS = [ Customer::class, PaymentPlan::class, ]; }