使用JSON向多个表写入数据

Question

你能帮帮我吗？我仍然是编码的新手。我一直在尝试使用 Angular 11 构建发票表格，然后使用 JSON 将数据发送到我的网站 API，最后将数据写入 [=48] =] 数据库.

我有 2 个 classes - Invoice 和 InvoiceLineItems

 public class CustomerInvoice : BaseEntity
    {
        public string InvoiceNumber { get; set; }
        public DateTime DateRaised { get; set; }
        public DateTime PaymentDueDate { get; set; }
        public int SubTotal { get; set; }
        public string DiscountDescription { get; set; }
        public int DiscountFactor { get; set; }
        public int DiscountAmount { get; set; }
        public int TotalDiscount { get; set; }
        public int GrandTotal { get; set; }
        public FamilyGroup FamilyGroup { get; set; }
        public int FamilyGroupId { get; set; }
        public List<CustomerInvoiceLine> CustomerInvoiceLines { get; set; }
    }

public class CustomerInvoiceLine: BaseEntity
    {
        public SchoolFee SchoolFee { get; set; }
        public int SchoolFeeId { get; set; }
        public string Description { get; set; }
        public int Quantity { get; set; }
        public int Amount { get; set; }
        public CustomerInvoice CustomerInvoice { get; set; }
        public int CustomerInvoiceId { get; set; }
    }

我有 2 个 DTO（上面每个 class 有 1 个）

public class CustomerInvoiceAddDto
    {
        public int Id { get; set; }
        public string InvoiceNumber { get; set; }
        public DateTime DateRaised { get; set; }
        public DateTime PaymentDueDate { get; set; }
        public int SubTotal { get; set; }
        public string DiscountDescription { get; set; }
        public int DiscountFactor { get; set; }
        public int DiscountAmount { get; set; }
        public int TotalDiscount { get; set; }
        public int GrandTotal { get; set; }
        public int FamilyGroupId { get; set; }   
    }

和

public class CustomerInvoiceLineAddDto
    {
        public int SchoolFeeId { get; set; }
        public string Description { get; set; }
        public int Quantity { get; set; }
        public int Amount { get; set; }
        public int CustomerInvoiceId { get; set; }
    }

我添加发票的控制器：

[HttpPost("addInvoice")]
        public async Task<ActionResult> AddInvoice(CustomerInvoiceAddDto invoiceAdd)
        {
            CustomerInvoice invoice = new CustomerInvoice();
            _mapper.Map(invoiceAdd, invoice);
            await _unitOfWork.CustomerInvoiceRepository.AddCustomerInvoiceAsync(invoice);

            var createdInvoice = await _context.CustomerInvoices
                    .Where(s => s.FamilyGroupId == invoiceAdd.FamilyGroupId )
                    .OrderBy(g => g.Id)
                    .LastOrDefaultAsync();
            return Ok(createdInvoice.Id);
        }

并添加发票行项目：

[HttpPost]
        public async Task<ActionResult> AddCustomerInvoiceLines(CustomerInvoiceLineAddDto[] invoiceLinesAddDto)
        {
            var invoiceLineDetails = _mapper.Map<List<CustomerInvoiceLine>>(invoiceLinesAddDto);
            await _unitOfWork.CustomerInvoiceLineRepository.AddCustomerInvoiceLinesAsync(invoiceLineDetails);
            return Ok();
        }

问题：当我最初设计这个时，我打算先调用 API 添加发票，然后 return 将发票 ID 发送到前端。此后，我将调用 InvoiceLineItems 控制器来创建发票行项目。

但是，在我的前端，我有 1 个 API 调用 JSON 格式如下：

{
    "DateRaised": "2022-03-01T21:32:13.000Z",
    "PaymentDueDate": "2022-03-08T21:32:13.000Z",
    "FamilyGroupId": 12,
    "subTotal": 1500,
    "discountFactor": "2",
    "discountAmount": 0,
    "discountDescription": null,
    "totalDiscount": 0,
    "grandTotal": 1500,
    "invoiceLineItems": [
        {
            "schoolFeeId": 1,
            "quantity": "1",
            "unitPrice": "1500"
        },
        {
            "schoolFeeId": 2,
            "quantity": "1",
            "unitPrice": "3000"
        }
    ]
}

是否可以有一个控制器可以接受 1 JSON 调用并写入发票 table、return 发票 ID，然后写入 InvoiceLineItems (行项目数组）？

再次感谢！

Answer 1

在 CustomerInvoiceAddDto 中添加 CustomerInvoiceLineAddDto 作为属性，如下所示-

public class CustomerInvoiceAddDto
{
    public int Id { get; set; }
    public string InvoiceNumber { get; set; }
    public DateTime DateRaised { get; set; }
    public DateTime PaymentDueDate { get; set; }
    public int SubTotal { get; set; }
    public string DiscountDescription { get; set; }
    public int DiscountFactor { get; set; }
    public int DiscountAmount { get; set; }
    public int TotalDiscount { get; set; }
    public int GrandTotal { get; set; }
    public int FamilyGroupId { get; set; }   
    public List<CustomerInvoiceLineAddDto> CustomerInvoiceLineDto {get;set;}
}

并保持 Angular JSON 格式不变。

然后在你的操作方法中做类似的事情。

我修改了你的代码假设你有类似的代码-

  [HttpPost("addInvoice")]
    public async Task<ActionResult> AddInvoice(CustomerInvoiceAddDto invoiceAdd)
    {
        CustomerInvoice invoice = new CustomerInvoice();
        _mapper.Map(invoiceAdd, invoice);
        await _unitOfWork.CustomerInvoiceRepository.AddCustomerInvoiceAsync(invoice);

        var createdInvoice = await _context.CustomerInvoices
                .Where(s => s.FamilyGroupId == invoiceAdd.FamilyGroupId)
                .OrderBy(g => g.Id)
                .LastOrDefaultAsync();

        var invoiceLineDetails = _mapper.Map<List<CustomerInvoiceLine>>(invoiceAdd.CustomerInvoiceLineDto);

        foreach (var line in invoiceLineDetails)
        {
            line.CustomerInvoiceId = createdInvoice.Id;
        }

        await _unitOfWork.CustomerInvoiceLineRepository.AddCustomerInvoiceLinesAsync(invoiceLineDetails);

        return Ok(createdInvoice.Id);
    }

Answer 2

您可以使用 ExecuteScalar 取回插入行的 ID。

https://docs.microsoft.com/en-us/dotnet/api/system.data.sqlclient.sqlcommand.executescalar?view=dotnet-plat-ext-6.0

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