Contracts/Contracts.csproj

@@ -7,7 +7,6 @@
   </PropertyGroup>
 
   <ItemGroup>
-    <Folder Include="StorageContracts\" />
     <Folder Include="BusinessLogicContracts\" />
   </ItemGroup>
 

Contracts/StorageContracts/IRoleStorage.cs

@@ -0,0 +1,24 @@
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using Contracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Contracts.StorageContracts
+{
+	public interface IRoleStorage
+	{
+		RoleBindingModel? Insert(RoleBindingModel model);
+
+		IEnumerable<RoleBindingModel> GetList(RoleSearchModel? model);
+
+		RoleBindingModel? GetElement(RoleSearchModel model);
+
+		RoleBindingModel? Update(RoleBindingModel model);
+
+		RoleBindingModel? Delete(RoleSearchModel model);
+	}
+}

Contracts/StorageContracts/IUserStorage.cs

@@ -0,0 +1,23 @@
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace Contracts.StorageContracts
+{
+	public interface IUserStorage
+	{
+		UserBindingModel? Insert(UserBindingModel model);
+
+		IEnumerable<UserBindingModel> GetList(UserSearchModel? model);
+
+		UserBindingModel? GetElement(UserSearchModel model);
+
+		UserBindingModel? Update(UserBindingModel model);
+
+		UserBindingModel? Delete(UserSearchModel model);
+	}
+}

DatabaseImplement/DatabaseImplement.csproj

@@ -6,10 +6,6 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Folder Include="Implements\" />
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="8.0.6">
       <PrivateAssets>all</PrivateAssets>

DatabaseImplement/Implements/RoleStorage.cs

@@ -0,0 +1,92 @@
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using Contracts.StorageContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement.Implements
+{
+	public class RoleStorage : IRoleStorage
+	{
+		public RoleBindingModel? Delete(RoleSearchModel model)
+		{
+			if (model is null || model.Id is null)
+			{
+				return null;
+			}
+
+			var context = new Database();
+			var role = context.Roles.FirstOrDefault(r => r.Id == model.Id);
+			if (role is null)
+			{
+				return null;
+			}
+
+			context.Remove(role);
+			context.SaveChanges();
+			return role.GetBindingModel();
+		}
+
+		public RoleBindingModel? GetElement(RoleSearchModel model)
+		{
+			if (model is null || model.Id is null)
+			{
+				return null;
+			}
+			var context = new Database();
+			return context.Roles
+				.FirstOrDefault(r => r.Id == model.Id)
+				?.GetBindingModel();
+		}
+
+		public IEnumerable<RoleBindingModel> GetList(RoleSearchModel? model)
+		{
+			var context = new Database();
+			if (model is null)
+			{
+				return context.Roles.Select(r => r.GetBindingModel());
+			}
+			if (model.Id is null)
+			{
+				return [];
+			}
+			return context.Roles
+				.Where(r => r.Id == model.Id)
+				.Select(r => r.GetBindingModel());
+		}
+
+		public RoleBindingModel? Insert(RoleBindingModel model)
+		{
+			if (model is null)
+			{
+				return null;
+			}
+			var context = new Database();
+			var newRole = Models.Role.ToRoleFromBinding(model);
+
+			context.Roles.Add(newRole);
+			context.SaveChanges();
+
+			return newRole.GetBindingModel();
+		}
+
+		public RoleBindingModel? Update(RoleBindingModel model)
+		{
+			var context = new Database();
+			var role = context.Roles.FirstOrDefault(r => r.Id == model.Id);
+
+			if (role is null)
+			{
+				return null;
+			}
+
+			role.Update(model);
+
+			context.SaveChanges();
+			return role.GetBindingModel();
+		}
+	}
+}

DatabaseImplement/Implements/UserStorage.cs

@@ -0,0 +1,93 @@
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using Contracts.StorageContracts;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace DatabaseImplement.Implements
+{
+	public class UserStorage : IUserStorage
+	{
+		public UserBindingModel? Delete(UserSearchModel model)
+		{
+			if (model is null || (model.Id is null && model.Email is null))
+			{
+				return null;
+			}
+
+			var context = new Database();
+			var user = context.Users.FirstOrDefault(u => u.Equals(model));
+
+			if (user is null)
+			{
+				return null;
+			}
+			context.Remove(user);
+			context.SaveChanges();
+
+			return user.GetBindingModel();
+		}
+
+		public UserBindingModel? GetElement(UserSearchModel model)
+		{
+			if (model is null || (model.Id is null && model.Email is null))
+			{
+				return null;
+			}
+			var context = new Database();
+			return context.Users
+				.FirstOrDefault(u => u.Equals(model))
+				?.GetBindingModel();
+		}
+
+		public IEnumerable<UserBindingModel> GetList(UserSearchModel? model)
+		{
+			var context = new Database();
+			if (model is null)
+			{
+				return context.Users.Select(r => r.GetBindingModel());
+			}
+			if (model.Id is null && model.Email is null)
+			{
+				return [];
+			}
+			return context.Users
+				.Where(u => u.Equals(model))
+				.Select(r => r.GetBindingModel());
+		}
+
+		public UserBindingModel? Insert(UserBindingModel model)
+		{
+			if (model is null)
+			{
+				return null;
+			}
+			var context = new Database();
+			var newUser = Models.User.ToUserFromBinding(model);
+
+			context.Users.Add(newUser);
+			context.SaveChanges();
+
+			return newUser.GetBindingModel();
+		}
+
+		public UserBindingModel? Update(UserBindingModel model)
+		{
+			var context = new Database();
+			var user = context.Users.FirstOrDefault(u => u.Id == model.Id);
+
+			if (user is null)
+			{
+				return null;
+			}
+
+			user.Update(model);
+
+			context.SaveChanges();
+			return user.GetBindingModel();
+		}
+	}
+}

DatabaseImplement/Models/User.cs

@@ -1,4 +1,5 @@
 using Contracts.BindingModels;
+using Contracts.SearchModels;
 using Contracts.ViewModels;
 using DataModels.Models;
 using System;
@@ -31,11 +32,16 @@ namespace DatabaseImplement.Models
 
 		public Role? Role { get; set; }
 
-		public UserBindingModel GetBindingModel()
+		public UserBindingModel GetBindingModel() => new()
 		{
-			// TODO: get binding with a role by database contetxt
-			throw new NotImplementedException();
-		}
+			Id = Id,
+			FirstName = FirstName,
+			SecondName = SecondName,
+			Email = Email,
+			PasswordHash = PasswordHash,
+			Birthday = Birthday,
+			Role = Role?.GetBindingModel() ?? new()
+		};
 
 		public static User ToUserFromView(UserViewModel model) => new()
 		{
@@ -72,5 +78,18 @@ namespace DatabaseImplement.Models
 			Birthday = model.Birthday;
 			Role = Models.Role.ToRoleFromBinding(model.Role);
 		}
+
+		public bool Equals(UserSearchModel model)
+		{
+			if (model.Id is null)
+			{
+				return Email.Contains(model.Email!);
+			}
+			if (string.IsNullOrWhiteSpace(model.Email))
+			{
+				return Id == model.Id;
+			}
+			return false;
+		}
 	}
 }