add new project

MySolution/DBCreateEF/Context/AppDbContext.cs

@@ -0,0 +1,22 @@
+using DBCreateEF.Model;
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DBCreateEF.Context
+{
+    internal class AppDbContext : DbContext
+    {
+        public DbSet<Snack> Snacks { get; set; }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            //optionsBuilder.UseSqlServer(@"Data Source=peacecloud.synology.me,21433;Initial Catalog=Study;User ID=study;Password=Study1234;Encrypt=false");
+            optionsBuilder.UseMySQL(@"Server=peacecloud.synology.me;Port=3307;Database=Study;Uid=study;Pwd=Study1234!;");
+            base.OnConfiguring(optionsBuilder);
+        }
+    }
+}

MySolution/DBCreateEF/DBCreateEF.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>Exe</OutputType>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.13" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Relational" Version="7.0.13" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="MySql.EntityFrameworkCore" Version="7.0.5" />
+  </ItemGroup>
+
+</Project>

MySolution/DBCreateEF/Model/Snack.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DBCreateEF.Model
+{
+    internal class Snack
+    {
+        public int Id { get; set; }
+        public string Name { get; set; }
+        public decimal Price { get; set; }
+    }
+}

MySolution/DBCreateEF/Program.cs

@@ -0,0 +1,17 @@
+using DBCreateEF.Context;
+using Microsoft.EntityFrameworkCore;
+
+namespace DBCreateEF
+{
+    internal class Program
+    {
+        static void Main(string[] args)
+        {
+            using (var context = new AppDbContext())
+            {
+                context.Database.EnsureCreated();
+                //context.Database.Migrate();
+            }
+        }
+    }
+}

MySolution/InventoryManagement_MariaDB/Program.cs

@@ -1,4 +1,5 @@
 using InventoryManagement.Components;
+using Microsoft.EntityFrameworkCore;
 
 namespace InventoryManagement
 {
@@ -9,6 +10,7 @@ namespace InventoryManagement
             using (var context = new InventoryContext())
             {
                 context.Database.EnsureCreated();
+                //context.Database.Migrate();
             }
 
             var InventoryManager = new InventoryManager();

MySolution/MySolution.sln

@@ -23,6 +23,10 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "EF_ChangeLog", "EF_ChangeLo
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "InventoryManagement_MariaDB", "InventoryManagement_MariaDB\InventoryManagement_MariaDB.csproj", "{EF6B4197-EAF3-4F13-AA42-F25110F82D3E}"
 EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DBCreateEF", "DBCreateEF\DBCreateEF.csproj", "{A3960078-A866-414F-B039-FCD4065E8F74}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ToDoApp", "ToDoApp\ToDoApp.csproj", "{D500F21E-3B7B-47DA-9D0C-69EB8A8FA3B1}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -69,6 +73,14 @@ Global
 		{EF6B4197-EAF3-4F13-AA42-F25110F82D3E}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{EF6B4197-EAF3-4F13-AA42-F25110F82D3E}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{EF6B4197-EAF3-4F13-AA42-F25110F82D3E}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A3960078-A866-414F-B039-FCD4065E8F74}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A3960078-A866-414F-B039-FCD4065E8F74}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A3960078-A866-414F-B039-FCD4065E8F74}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A3960078-A866-414F-B039-FCD4065E8F74}.Release|Any CPU.Build.0 = Release|Any CPU
+		{D500F21E-3B7B-47DA-9D0C-69EB8A8FA3B1}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{D500F21E-3B7B-47DA-9D0C-69EB8A8FA3B1}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{D500F21E-3B7B-47DA-9D0C-69EB8A8FA3B1}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{D500F21E-3B7B-47DA-9D0C-69EB8A8FA3B1}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

MySolution/ToDoApp/App.xaml

@@ -0,0 +1,9 @@
+<Application x:Class="ToDoApp.App"
+             xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+             xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+             xmlns:local="clr-namespace:ToDoApp"
+             StartupUri="MainWindow.xaml">
+    <Application.Resources>
+         
+    </Application.Resources>
+</Application>

MySolution/ToDoApp/App.xaml.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+using System.Configuration;
+using System.Data;
+using System.Linq;
+using System.Threading.Tasks;
+using System.Windows;
+
+namespace ToDoApp
+{
+    /// <summary>
+    /// Interaction logic for App.xaml
+    /// </summary>
+    public partial class App : Application
+    {
+    }
+}

MySolution/ToDoApp/AssemblyInfo.cs

@@ -0,0 +1,10 @@
+using System.Windows;
+
+[assembly: ThemeInfo(
+    ResourceDictionaryLocation.None, //where theme specific resource dictionaries are located
+                                     //(used if a resource is not found in the page,
+                                     // or application resource dictionaries)
+    ResourceDictionaryLocation.SourceAssembly //where the generic resource dictionary is located
+                                              //(used if a resource is not found in the page,
+                                              // app, or any theme specific resource dictionaries)
+)]

MySolution/ToDoApp/Context/ToDoContext.cs

@@ -0,0 +1,24 @@
+using Microsoft.EntityFrameworkCore;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ToDoApp.Model;
+
+namespace ToDoApp.Context
+{
+    public class ToDoContext : DbContext
+    {
+        public DbSet<User> Users { get; set; }
+        public DbSet<Item> Items { get; set; }
+
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            optionsBuilder.UseMySQL(@"Server=peacecloud.synology.me;Port=3307;Database=Study;Uid=study;Pwd=Study1234!;");
+            base.OnConfiguring(optionsBuilder);
+        }
+
+
+    }
+}

MySolution/ToDoApp/Controller/ToDoController.cs

@@ -0,0 +1,111 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ToDoApp.Context;
+using ToDoApp.Model;
+using ToDoApp.Utility;
+
+namespace ToDoApp.Controller
+{
+    public class ToDoController
+    {
+        public static ToDoController Instance { get; set; } = new ToDoController();
+
+        public void EnsureCreated()
+        {
+            using (var context = new ToDoContext())
+            {
+                context.Database.EnsureCreated();
+            }
+        }
+
+        public User? FindUser(int id)
+        {
+            using (var context = new ToDoContext())
+            {
+                return context.Users.Find(id);
+            }
+        }
+
+        public User? FindUser(string username)
+        {
+            using (var context = new ToDoContext())
+            {
+                return context.Users.FirstOrDefault(u => u.Name == username);
+            }
+        }
+
+        public bool LoginCheckUser(string username, string password)
+        {
+            User? user = FindUser(username);
+            if (user == null)
+                return false;
+
+            return Utils.VerifyPassword(password, user.Password);
+        }
+
+        public void CreateUser(User user)
+        {
+            using (var context = new ToDoContext())
+            {
+                user.CreateDate = DateTime.Now;
+                context.Users.Add(user);
+                context.SaveChanges();
+            }
+        }
+
+        public void DisableUser(int id)
+        {
+            using (var context = new ToDoContext())
+            {
+                User? user = context.Users.Find(id);
+                if (user == null)
+                    return;
+
+                user.Status = UserStatus.Invalid;
+                context.SaveChanges();
+            }
+        }
+
+        public void DisableUser(string username)
+        {
+            using (var context = new ToDoContext())
+            {
+                User? user = context.Users.FirstOrDefault(u => u.Name == username);
+                if (user == null)
+                    return;
+
+                user.Status = UserStatus.Invalid;
+                context.SaveChanges();
+            }
+        }
+
+        public void RemoveUser(int id)
+        {
+            using (var context = new ToDoContext())
+            {
+                User? user = context.Users.Find(id);
+                if (user == null)
+                    return;
+
+                context.Users.Remove(user);
+                context.SaveChanges();
+            }
+        }
+
+        public void RemoveUser(string username)
+        {
+            using (var context = new ToDoContext())
+            {
+                User? user = context.Users.FirstOrDefault(u => u.Name == username);
+                if (user == null)
+                    return;
+
+                context.Users.Remove(user);
+                context.SaveChanges();
+            }
+        }
+    }
+}

MySolution/ToDoApp/MainWindow.xaml

@@ -0,0 +1,12 @@
+<Window x:Class="ToDoApp.MainWindow"
+        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        xmlns:local="clr-namespace:ToDoApp"
+        mc:Ignorable="d"
+        Title="MainWindow" Height="450" Width="800">
+    <Grid>
+
+    </Grid>
+</Window>

MySolution/ToDoApp/MainWindow.xaml.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows;
+using System.Windows.Controls;
+using System.Windows.Data;
+using System.Windows.Documents;
+using System.Windows.Input;
+using System.Windows.Media;
+using System.Windows.Media.Imaging;
+using System.Windows.Navigation;
+using System.Windows.Shapes;
+using ToDoApp.Context;
+using ToDoApp.Controller;
+using ToDoApp.Model;
+
+namespace ToDoApp
+{
+    /// <summary>
+    /// Interaction logic for MainWindow.xaml
+    /// </summary>
+    public partial class MainWindow : Window
+    {
+        public MainWindow()
+        {
+            InitializeComponent();
+
+            if (!CheckDB())
+            {
+                MessageBox.Show("데이터베이스가 정상적이지 않아 프로그램을 종료합니다.");
+                Application.Current.Shutdown();
+            }
+        }
+
+        private bool CheckDB()
+        {
+            try
+            {
+                ToDoController.Instance.EnsureCreated();
+                return true;
+            }
+            catch (Exception ex)
+            {
+                return false;
+            }
+
+        }
+    }
+}

MySolution/ToDoApp/Model/Item.cs

@@ -0,0 +1,30 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ToDoApp.Model
+{
+    public class Item
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public int UserId { get; set; }
+
+        [Required]
+        public string Title { get; set; }
+
+        public string Description { get; set; }
+
+        public DateTime DueDate { get; set; }
+
+        public bool IsCompleted { get; set; }
+
+        public DateTime CreateDate { get; set; }
+
+        public User User { get; set; }
+    }
+}

MySolution/ToDoApp/Model/User.cs

@@ -0,0 +1,33 @@
+using System;
+using System.Collections.Generic;
+using System.ComponentModel.DataAnnotations;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ToDoApp.Model
+{
+    public enum UserStatus
+    {
+        Valid,
+        Invalid
+    }
+
+    public class User
+    {
+        public int Id { get; set; }
+
+        [Required]
+        public string Name { get; set; }
+
+        [Required]
+        public string Password { get; set; }
+
+        [EmailAddress(ErrorMessage = "Invalid email format")]
+        public string Email { get; set; }
+
+        public DateTime CreateDate { get; set; }
+
+        public UserStatus Status { get; set; }
+    }
+}

MySolution/ToDoApp/ToDoApp.csproj

@@ -0,0 +1,23 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <OutputType>WinExe</OutputType>
+    <TargetFramework>net6.0-windows</TargetFramework>
+    <Nullable>enable</Nullable>
+    <UseWPF>true</UseWPF>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.13" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.13">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="MySql.EntityFrameworkCore" Version="7.0.5" />
+  </ItemGroup>
+
+</Project>

MySolution/ToDoApp/Utility/Utils.cs

@@ -0,0 +1,27 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Security.Cryptography;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ToDoApp.Utility
+{
+    public class Utils
+    {
+        public static string HashPassword(string password)
+        {
+            using (var sha256 = SHA256.Create())
+            {
+                var hashedBytes = sha256.ComputeHash(Encoding.UTF8.GetBytes(password));
+                return BitConverter.ToString(hashedBytes).Replace("-", "").ToLower();
+            }
+        }
+
+        public static bool VerifyPassword(string inputPassword, string hashedPassword)
+        {
+            var hashedInput = HashPassword(inputPassword);
+            return hashedInput.Equals(hashedPassword);
+        }
+    }
+}