initial commit

Core/Application/Features/SalesOrderManager/Queries/GetSalesOrderSingle.cs

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+using Application.Common.CQS.Queries;
+using AutoMapper;
+using Domain.Entities;
+using FluentValidation;
+using MediatR;
+using Microsoft.EntityFrameworkCore;
+
+namespace Application.Features.SalesOrderManager.Queries;
+
+
+public class GetSalesOrderSingleProfile : Profile
+{
+    public GetSalesOrderSingleProfile()
+    {
+    }
+}
+
+public class GetSalesOrderSingleResult
+{
+    public SalesOrder? Data { get; init; }
+}
+
+public class GetSalesOrderSingleRequest : IRequest<GetSalesOrderSingleResult>
+{
+    public string? Id { get; init; }
+}
+
+public class GetSalesOrderSingleValidator : AbstractValidator<GetSalesOrderSingleRequest>
+{
+    public GetSalesOrderSingleValidator()
+    {
+        RuleFor(x => x.Id).NotEmpty();
+    }
+}
+
+public class GetSalesOrderSingleHandler : IRequestHandler<GetSalesOrderSingleRequest, GetSalesOrderSingleResult>
+{
+    private readonly IQueryContext _context;
+
+    public GetSalesOrderSingleHandler(
+        IQueryContext context
+        )
+    {
+        _context = context;
+    }
+
+    public async Task<GetSalesOrderSingleResult> Handle(GetSalesOrderSingleRequest request, CancellationToken cancellationToken)
+    {
+        var query = _context
+            .SalesOrder
+            .AsNoTracking()
+            .Include(x => x.Customer)
+            .Include(x => x.Tax)
+            .Include(x => x.SalesOrderItemList.Where(item => !item.IsDeleted))
+                .ThenInclude(x => x.Product)
+            .Where(x => x.Id == request.Id)
+            .AsQueryable();
+
+        var entity = await query.SingleOrDefaultAsync(cancellationToken);
+
+        return new GetSalesOrderSingleResult
+        {
+            Data = entity
+        };
+    }
+}