text 为api创建关联控制器

Posted 2021-05-02

1. in Order model:

public class Order
{
  public int Id { get; set; }
  public DateTime OrderDate { get; set; }
  public string OrderNumber { get; set; }
  public ICollection<OrderItem> Items { get; set; }
}

if I want to use /api/orders/{orderid}/items to get items, I have to create association controller for 
Items

2. create OrderItemsController in Controller folder

[Route("/api/orders/{orderid}/items")]
public class OrderItemsController : Controller
{
    private readonly IDutchRepository repository;
    private readonly ILogger<OrderItemsController> logger;
    private readonly IMapper mapper;

    public OrderItemsController(IDutchRepository repository,
        ILogger<OrderItemsController> logger
        , IMapper mapper)
    {
        this.repository = repository;
        this.logger = logger;
        this.mapper = mapper;
    }

    [HttpGet]
    public IActionResult Get(int orderId)
    {
        var order = this.repository.GetOrderById(orderId);
        if (order != null) return Ok(this.mapper.Map<IEnumerable<OrderItem>, IEnumerable<OrderItemViewModel>>(order.Items));
        return NotFound(order.Items);
    }

    [HttpGet("{id}")]
    public IActionResult Get(int orderId, int id) {
        var order = this.repository.GetOrderById(orderId);
        if (order != null)
        {
            var orderItem = order.Items
                .Where(o => o.Id == id)
                .FirstOrDefault();
            if (orderItem != null) {
                return Ok(this.mapper.Map<OrderItem, OrderItemViewModel>(orderItem));
            }
            
        }               
        return NotFound(order.Items);
    }
}

3. in OrderItem model
public class OrderItemViewModel
{
    public int Id { get; set; }
    [Required]
    public int Quantity { get; set; }
    [Required]
    public decimal UnitPrice { get; set; }

    [Required]
    public int ProductId { get; set; }
    public string ProductCategory { get; set; }
    public string ProductSize { get; set; }
    public string ProductTitle { get; set; }
    public string ProductArtist { get; set; }
}

if I add property with prefix of Product, AutoMapper will map product properties value automatically and show 
when url is called