Implement N-layer architecture

NG_2023_Kanban.BusinessLayer/NG_2023_Kanban.BusinessLayer.csproj

@@ -0,0 +1,13 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../NG_2023_Kanban.DataLayer/NG_2023_Kanban.DataLayer.csproj" />
+  </ItemGroup>
+
+</Project>

NG_2023_Kanban.BusinessLayer/Service/BusinessService.cs

@@ -0,0 +1,33 @@
+using NG_2023_Kanban.DataLayer.Service;
+using NG_2023_Kanban.DataLayer.Entities;
+using Microsoft.EntityFrameworkCore;
+
+namespace NG_2023_Kanban.BusinessLayer.Service
+{
+    public class BusinessService
+    {
+        private readonly DataService _service;
+        public BusinessService(DataService service) 
+        {
+            _service = service;
+        }
+
+        public async Task<User> LoginAsync(string username, string password)
+        {
+            return await _service.LoginAsync(username, password);
+        }
+
+        public async Task<User> RegisterAsync(string fullName, string username, string password)
+        {
+            User account = await _service.AddAsync(new User
+            {
+                FullName = fullName,
+                Username = username,
+                Password = password, // TODO: hashing
+                IsAdmin = false
+            });
+
+            return account;
+        }
+    }
+}

NG_2023_Kanban.BusinessLayer/Service/Injecting.cs

@@ -0,0 +1,14 @@
+using NG_2023_Kanban.BusinessLayer.Service;
+using Microsoft.Extensions.DependencyInjection;
+
+namespace NG_2023_Kanban.BusinessLayer.Inject
+{
+    public static class Injecting
+    {
+        public static void InjectBLL(
+            this IServiceCollection services)
+        {
+            services.AddScoped<BusinessService>();
+        }
+    }
+}

NG_2023_Kanban.DataLayer/DbStartup/Injecting.cs

@@ -1,11 +1,13 @@
-using NG_2023_Kanban.BusinessLayer.Service;
+using NG_2023_Kanban.DataLayer.Service;
 using Microsoft.EntityFrameworkCore;
+using Microsoft.Extensions.Configuration;
+using Microsoft.Extensions.DependencyInjection;
 
 namespace NG_2023_Kanban.DataLayer.DbStartup
 {
     public static class Injecting
     {
-        public static void Inject(
+        public static void InjectDAL(
             this IServiceCollection services,
             IConfiguration configuration)
         {
@@ -14,7 +16,7 @@ namespace NG_2023_Kanban.DataLayer.DbStartup
                 options.UseSqlServer(
                     configuration["ConnectionString"]);
             });
-            services.AddScoped<DbService>();
+            services.AddScoped<DataService>();
         }
     }
 }

NG_2023_Kanban.DataLayer/EntityConfiguration/CommentConfiguration.cs

@@ -18,7 +18,8 @@ namespace NG_2023_Kanban.DataLayer.EntityConfiguration
                 .HasOne(x => x.Sender)
                 .WithMany(x => x.Comments)
                 .HasForeignKey(x => x.SenderId)
-                .HasPrincipalKey(x => x.Id);
+                .HasPrincipalKey(x => x.Id)
+                .OnDelete(DeleteBehavior.Restrict);
 
             builder
                 .HasOne(x => x.Card)

NG_2023_Kanban.DataLayer/NG_2023_Kanban.DataLayer.csproj

@@ -1,15 +1,14 @@
-<Project Sdk="Microsoft.NET.Sdk.Web">
+<Project Sdk="Microsoft.NET.Sdk">
 
   <PropertyGroup>
     <TargetFramework>net6.0</TargetFramework>
-    <Nullable>enable</Nullable>
     <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
   </PropertyGroup>
 
   <ItemGroup>
     <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.5" />
     <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.5" />
-    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
   </ItemGroup>
 
 </Project>

NG_2023_Kanban.DataLayer/Service/DataService.cs

@@ -2,14 +2,15 @@
 using NG_2023_Kanban.DataLayer.Entities;
 using Microsoft.EntityFrameworkCore;
 
-namespace NG_2023_Kanban.BusinessLayer.Service
+namespace NG_2023_Kanban.DataLayer.Service
 {
-    public class DbService
+    public class DataService
     {
         private readonly DatabaseContext _context;
-        public DbService(DatabaseContext context) 
+        public DataService(DatabaseContext context) 
         {
             _context = context;
+            _context.Database.EnsureCreated();
         }
 
         public async Task<User> AddAsync(User entity)

NG_2023_Kanban.sln

@@ -0,0 +1,34 @@
+
+Microsoft Visual Studio Solution File, Format Version 12.00
+# Visual Studio Version 17
+VisualStudioVersion = 17.0.31903.59
+MinimumVisualStudioVersion = 10.0.40219.1
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NG_2023_Kanban", "NG_2023_Kanban\NG_2023_Kanban.csproj", "{9487AF5A-D980-4015-B8EE-BF243BC0534E}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NG_2023_Kanban.BusinessLayer", "NG_2023_Kanban.DataLayer\NG_2023_Kanban.BusinessLayer.csproj", "{B62FD923-EDD7-4A4E-AD73-408C2FD0AC2B}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "NG_2023_Kanban.BusinessLayer", "NG_2023_Kanban.BusinessLayer\NG_2023_Kanban.BusinessLayer.csproj", "{169BEBE0-05F8-463D-999E-323F37454289}"
+EndProject
+Global
+	GlobalSection(SolutionConfigurationPlatforms) = preSolution
+		Debug|Any CPU = Debug|Any CPU
+		Release|Any CPU = Release|Any CPU
+	EndGlobalSection
+	GlobalSection(SolutionProperties) = preSolution
+		HideSolutionNode = FALSE
+	EndGlobalSection
+	GlobalSection(ProjectConfigurationPlatforms) = postSolution
+		{9487AF5A-D980-4015-B8EE-BF243BC0534E}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{9487AF5A-D980-4015-B8EE-BF243BC0534E}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{9487AF5A-D980-4015-B8EE-BF243BC0534E}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{9487AF5A-D980-4015-B8EE-BF243BC0534E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B62FD923-EDD7-4A4E-AD73-408C2FD0AC2B}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B62FD923-EDD7-4A4E-AD73-408C2FD0AC2B}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B62FD923-EDD7-4A4E-AD73-408C2FD0AC2B}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B62FD923-EDD7-4A4E-AD73-408C2FD0AC2B}.Release|Any CPU.Build.0 = Release|Any CPU
+		{169BEBE0-05F8-463D-999E-323F37454289}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{169BEBE0-05F8-463D-999E-323F37454289}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{169BEBE0-05F8-463D-999E-323F37454289}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{169BEBE0-05F8-463D-999E-323F37454289}.Release|Any CPU.Build.0 = Release|Any CPU
+	EndGlobalSection
+EndGlobal

NG_2023_Kanban/Controllers/HomeController.cs

@@ -5,14 +5,14 @@ using NG_2023_Kanban.Extensions;
 using NG_2023_Kanban.DataLayer.Models;
 using NG_2023_Kanban.BusinessLayer.Service;
 
-namespace NG_2023_Kanban.PresentationLayer.Controllers;
+namespace NG_2023_Kanban.Controllers;
 
 public class HomeController : Controller
 {
-    private readonly DbService _service;
+    private readonly BusinessService _service;
     private readonly ILogger<HomeController> _logger;
 
-    public HomeController(ILogger<HomeController> logger, DbService service)
+    public HomeController(ILogger<HomeController> logger, BusinessService service)
     {
         _logger = logger;
         _service = service;
@@ -82,13 +82,7 @@ public class HomeController : Controller
 
         try
         {
-            User account = await _service.AddAsync(new User
-            {
-                FullName = fullName,
-                Username = username,
-                Password = password, // TODO: hashing
-                IsAdmin = false
-            });
+            User account = await _service.RegisterAsync(fullName, username, password);
 
             HttpContext.Session.SetObject("Account", account);
             return Redirect("/Home/Index");

NG_2023_Kanban/NG_2023_Kanban.csproj

@@ -0,0 +1,18 @@
+<Project Sdk="Microsoft.NET.Sdk.Web">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <Nullable>enable</Nullable>
+    <ImplicitUsings>enable</ImplicitUsings>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Newtonsoft.Json" Version="13.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="../NG_2023_Kanban.DataLayer/NG_2023_Kanban.DataLayer.csproj" />
+    <ProjectReference Include="../NG_2023_Kanban.BusinessLayer/NG_2023_Kanban.BusinessLayer.csproj" />
+  </ItemGroup>
+
+</Project>

NG_2023_Kanban/Program.cs

@@ -1,10 +1,12 @@
+using NG_2023_Kanban.BusinessLayer.Inject;
 using NG_2023_Kanban.DataLayer.DbStartup;
 
 var builder = WebApplication.CreateBuilder(args);
 
 IConfiguration configuration = builder.Configuration;
 
-builder.Services.Inject(configuration);
+builder.Services.InjectDAL(configuration);
+builder.Services.InjectBLL();
 
 // Add services to the container.
 builder.Services.AddControllersWithViews();
@@ -27,13 +29,6 @@ if (!app.Environment.IsDevelopment())
     app.UseHsts();
 }
 
-using(var scope = app.Services.CreateScope())
-{
-    var serviceProvider = scope.ServiceProvider;
-    var context = serviceProvider.GetRequiredService<DatabaseContext>();
-    DbInitializer.Initialize(context);
-}
-
 app.UseHttpsRedirection();
 app.UseStaticFiles();