refactored layer

Author: Amitpnk

OnionArchitecture/OA.Infrastructure/Extension/ConfigureServiceContainer.cs

@@ -1,13 +1,10 @@
 using AutoMapper;
-using MediatR;
 using Microsoft.EntityFrameworkCore;
 using Microsoft.Extensions.Configuration;
 using Microsoft.Extensions.DependencyInjection;
-using OA.Data;
 using OA.Domain;
 using OA.Infrastructure.Mapping;
-using OA.Persistence.Contract;
-using OA.Persistence.Repository;
+using OA.Persistence;
 using OA.Service.Contract;
 using OA.Service.Implementation;
 using System;
@@ -38,8 +35,6 @@ public static void AddAutoMapper(this IServiceCollection serviceCollection)
 
         public static void AddAddScopedServices(this IServiceCollection serviceCollection)
         {
-            serviceCollection.AddScoped(typeof(IGenericRepository<>), typeof(GenericRepository<>));
-            serviceCollection.AddScoped<ICustomerRepository, CustomerRepository>();
             serviceCollection.AddScoped<IApplicationDbContext>(provider => provider.GetService<ApplicationDbContext>());
         }
 

OnionArchitecture/OA.Persistence/ApplicationDbContext.cs

@@ -0,0 +1,45 @@
+using Microsoft.EntityFrameworkCore;
+using OA.Domain.Entities;
+using System.Threading.Tasks;
+
+namespace OA.Persistence
+{
+    public class ApplicationDbContext : DbContext, IApplicationDbContext
+    {
+        // This constructor is used of runit testing
+        public ApplicationDbContext()
+        {
+
+        }
+        public ApplicationDbContext(DbContextOptions options) : base(options)
+        {
+            ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
+        }
+
+        public DbSet<Customer> Customers { get; set; }
+        public DbSet<Order> Orders { get; set; }
+        public DbSet<Product> Products { get; set; }
+        public DbSet<Category> Categories { get; set; }
+        public DbSet<Supplier> Suppliers { get; set; }
+
+        protected override void OnModelCreating(ModelBuilder modelBuilder)
+        {
+            modelBuilder.Entity<OrderDetail>().HasKey(o => new { o.OrderId, o.ProductId });
+        }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (!optionsBuilder.IsConfigured)
+            {
+                optionsBuilder
+                .UseSqlServer("DataSource=app.db");
+            }
+
+        }
+
+        public async Task<int> SaveChangesAsync()
+        {
+            return await base.SaveChangesAsync();
+        }
+    }
+}

OnionArchitecture/OA.Persistence/ApplicationDbContext.dgml

@@ -0,0 +1,17 @@
+using Microsoft.EntityFrameworkCore;
+using OA.Domain.Entities;
+using System.Threading.Tasks;
+
+namespace OA.Persistence
+{
+    public interface IApplicationDbContext
+    {
+        DbSet<Category> Categories { get; set; }
+        DbSet<Customer> Customers { get; set; }
+        DbSet<Order> Orders { get; set; }
+        DbSet<Product> Products { get; set; }
+        DbSet<Supplier> Suppliers { get; set; }
+
+        Task<int> SaveChangesAsync();
+    }
+}

OnionArchitecture/OA.Persistence/Contract/ICustomerRepository.cs

@@ -5,7 +5,15 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <ProjectReference Include="..\OA.Data\OA.Data.csproj" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="3.1.5" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="3.1.5">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\OA.Domain\OA.Domain.csproj" />
   </ItemGroup>
 
 </Project>

OnionArchitecture/OA.Persistence/Contract/IGenericRepository.cs

@@ -1,15 +1,10 @@
 using MediatR;
 using Microsoft.Extensions.DependencyInjection;
-using System;
-using System.Collections.Generic;
-using System.Linq;
 using System.Reflection;
-using System.Text;
-using System.Threading.Tasks;
 
 namespace OA.Service
 {
-    public static  class DependencyInjection
+    public static class DependencyInjection
     {
         public static void AddMediatorCQRS(this IServiceCollection services)
         {