src/main/java/com/byh/biyesheji/service/impl/OrderItemServiceImpl.java

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package com.byh.biyesheji.service.impl;

import com.byh.biyesheji.dao.OrderItemMapper;
import com.byh.biyesheji.pojo.Order;
import com.byh.biyesheji.pojo.OrderItem;
import com.byh.biyesheji.pojo.OrderItemExample;
import com.byh.biyesheji.pojo.Product;
import com.byh.biyesheji.service.OrderItemService;
import com.byh.biyesheji.service.ProductService;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.stereotype.Service;

import java.util.List;

@Service
public class OrderItemServiceImpl implements OrderItemService {

    @Autowired
    OrderItemMapper orderItemMapper;
    @Autowired
    ProductService productService;

    @Override
    public void save(OrderItem c) {
        orderItemMapper.insert(c);
    }

    @Override
    public void del(int id) {
        orderItemMapper.deleteByPrimaryKey(id);
    }

    @Override
    public void update(OrderItem c) {
        orderItemMapper.updateByPrimaryKeySelective(c);
    }

    @Override
    public OrderItem get(int id) {
        OrderItem result = orderItemMapper.selectByPrimaryKey(id);
        setProduct(result);
        return result;
    }

    public List<OrderItem> list(){
        OrderItemExample example =new OrderItemExample();
        example.setOrderByClause("id asc");
        return orderItemMapper.selectByExample(example);

    }

    @Override
    public void fill(List<Order> os) {
        for (Order o :os){
            fill(o);
        }
    }
    /*
    1. 根据订单id查询出其对应的所有订单项
    2. 通过setProduct为所有的订单项设置Product属性