Реализовано хранения исполнителя в бд

ConfectioneryDatabaseImplement/ConfectioneryDatabase.cs

@@ -25,5 +25,6 @@ namespace ConfectioneryDatabaseImplement
         public virtual DbSet<PastryComponent> PastryComponents { set; get; }
         public virtual DbSet<Order> Orders { set; get; }
         public virtual DbSet<Client> Clients { set; get; }
+        public virtual DbSet<Implementer> Implementers { set; get; }
     }
 }

ConfectioneryDatabaseImplement/Implementer.cs

@@ -0,0 +1,55 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.ViewModels;
+using ConfectioneryDataModels;
+
+namespace ConfectioneryDatabaseImplement
+{
+	public class Implementer : IImplementerModel
+	{
+		public int Id { get; private set; }
+
+		public string ImplementerFIO { get; private set; } = string.Empty;
+
+		public string Password { get; private set; } = string.Empty;
+
+		public int WorkExperience { get; private set; }
+
+		public int Qualification { get; private set; }
+
+		public static Implementer? Create(ImplementerBindingModel model)
+		{
+			if (model == null)
+			{
+				return null;
+			}
+			return new()
+			{
+				Id = model.Id,
+				Password = model.Password,
+				Qualification = model.Qualification,
+				ImplementerFIO = model.ImplementerFIO,
+				WorkExperience = model.WorkExperience,
+			};
+		}
+
+		public void Update(ImplementerBindingModel model)
+		{
+			if (model == null)
+			{
+				return;
+			}
+			Password = model.Password;
+			Qualification = model.Qualification;
+			ImplementerFIO = model.ImplementerFIO;
+			WorkExperience = model.WorkExperience;
+		}
+
+		public ImplementerViewModel GetViewModel => new()
+		{
+			Id = Id,
+			Password = Password,
+			Qualification = Qualification,
+			ImplementerFIO = ImplementerFIO,
+		};
+	}
+}

ConfectioneryDatabaseImplement/ImplementerStorage.cs

@@ -0,0 +1,84 @@
+using ConfectioneryContracts.BindingModels;
+using ConfectioneryContracts.SearchModels;
+using ConfectioneryContracts.StoragesContract;
+using ConfectioneryContracts.ViewModels;
+
+namespace ConfectioneryListImplement
+{
+	public class ImplementerStorage : IImplementerStorage
+	{
+		private readonly DataListSingleton _source;
+		public ImplementerStorage()
+		{
+			_source = DataListSingleton.GetInstance();
+		}
+
+		public ImplementerViewModel? Delete(ImplementerBindingModel model)
+		{
+			var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			if (res != null)
+			{
+				_source.Implementers.Remove(res);
+			}
+			return res?.GetViewModel;
+		}
+
+		public ImplementerViewModel? GetElement(ImplementerSearchModel model)
+		{
+			if (model.Id.HasValue)
+				return _source.Implementers.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+			if (model.ImplementerFIO != null && model.Password != null)
+				return _source.Implementers
+					.FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO)
+									  && x.Password.Equals(model.Password))
+					?.GetViewModel;
+			if (model.ImplementerFIO != null)
+				return _source.Implementers.FirstOrDefault(x => x.ImplementerFIO.Equals(model.ImplementerFIO))?.GetViewModel;
+			return null;
+		}
+
+		public List<ImplementerViewModel> GetFilteredList(ImplementerSearchModel model)
+		{
+			if (model == null)
+			{
+				return new();
+			}
+			if (model.Id.HasValue)
+			{
+				var res = GetElement(model);
+				return res != null ? new() { res } : new();
+			}
+			if (model.ImplementerFIO != null) // На случай если фио не будет уникальным (по заданию оно уникально)
+			{
+				return _source.Implementers
+					.Where(x => x.ImplementerFIO.Equals(model.ImplementerFIO))
+					.Select(x => x.GetViewModel)
+					.ToList();
+			}
+			return new();
+		}
+
+		public List<ImplementerViewModel> GetFullList()
+		{
+			return _source.Implementers.Select(x => x.GetViewModel).ToList();
+		}
+
+		public ImplementerViewModel? Insert(ImplementerBindingModel model)
+		{
+			model.Id = _source.Implementers.Count > 0 ? _source.Implementers.Max(x => x.Id) + 1 : 1;
+			var res = Implementer.Create(model);
+			if (res != null)
+			{
+				_source.Implementers.Add(res);
+			}
+			return res?.GetViewModel;	
+		}
+
+		public ImplementerViewModel? Update(ImplementerBindingModel model)
+		{
+			var res = _source.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			res?.Update(model);
+			return res?.GetViewModel;
+		}
+	}
+}