Spring Batch - 쇼핑몰 만들기(환불), Helper

• order1PayPrice: 장바구니에 담은 물품의 총 가격
  restCash: 충전 후 남아있는 금액
• 환불
  

  member2의 환불 -> 
  환불 시 주문자의 주문을 확인
  환불 금액을 product_option의 refund_price에 등록시키고
  예치금 +시켜줘!​

  
  

  //order
  public void setRefundDone() {
      for (OrderItem orderItem : OrderItems) {
          orderItem.setRefundDone();
      }
  
  }
  
  public int getPayPrice() {
      int payPrice = 0;
  
      for(OrderItem orderItem : OrderItems) {
          payPrice += orderItem.getPayPrice();
      }
  
      return payPrice;
  
  }
  //orderItem
  public void setRefundDone() {
      if(refundQuantity == quantity) return;
  
      this.refundQuantity = quantity;
      this.refundPrice = payPrice;
  
  }
  //orderService
  @Transactional
  public void refund(Order order) {
      int payPrice = order.getPayPrice();
      memberService.addCash(order.getMember(),payPrice,"주문환불__예치금환불");
  
  
      order.setRefundDone();
      orderRepository.save(order);
  }​

• 주문 4개 만들기 - Helper 이용
  

   class Helper {
      public Order order(Member member, List<ProductOption> productOptions) {
          for (int i = 0; i < productOptions.size(); i++) {
              ProductOption productOption = productOptions.get(i);
  
              cartService.addItem(member, productOption, i + 1);
          }
          return orderService.createFromCart(member);
      }
  }
  
  Helper helper = new Helper();​
  
      Order order1 = helper.order(member1,Arrays.asList(product1Option__RED_95,product1Option__RED_95,product1Option__BLUE_95));
      Order order2 = helper.order(member2,Arrays.asList(product2Option__Black_95,product2Option__Black_95,product2Option__White_95));
      Order order3 = helper.order(member2,Arrays.asList(product1Option__RED_95,product1Option__RED_100,product2Option__Black_95,product2Option__White_95));
      Order order4 = helper.order(member1,Arrays.asList(product1Option__RED_95,product2Option__White_95));

• ProductBackupJobConfig 생성, entity 생성, BackupedProduct table: backuped_product (현재 상품들을 백업)
  ➡️ backuped_product, product 조회한 결과가 같아야함

💫 Bean들 간의 의존도가 있으면 순서를 정할 수 있다