ImplementerStorage

Course/DatabaseImplement/DatabaseImplement.csproj

@@ -6,10 +6,6 @@
     <Nullable>enable</Nullable>
   </PropertyGroup>
 
-  <ItemGroup>
-    <Folder Include="Implements\" />
-  </ItemGroup>
-
   <ItemGroup>
     <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="6.0.22" />
   </ItemGroup>

Course/DatabaseImplement/Implements/ImplementerStorage.cs

@@ -0,0 +1,72 @@
+using DatabaseImplement.Models;
+using Contracts.BindingModels;
+using Contracts.SearchModels;
+using Contracts.ViewModels;
+using Contracts.StoragesContracts;
+
+namespace DatabaseImplement.Implements
+{
+	public class ImplementerStorage : IImplementerStorage
+	{
+		public ImplementerViewModel? Delete(ImplementerBindingModel model)
+		{
+			using var context = new FactoryGoWorkDatabase();
+			var newImplementer = context.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			if (newImplementer == null)
+				return null;
+			context.Implementers.Remove(newImplementer);
+			context.SaveChanges();
+			return newImplementer.GetViewModel;
+		}
+
+		public ImplementerViewModel? GetElement(ImplementerSearchModel model)
+		{
+			if (!model.Id.HasValue && string.IsNullOrEmpty(model.Login)) { return null; }
+			using var context = new FactoryGoWorkDatabase();
+			return context.Implementers.FirstOrDefault(x => (model.Id.HasValue && x.Id == model.Id) || (!string.IsNullOrEmpty(model.Login) && x.Login.Equals(model.Login)))?.GetViewModel; ;
+		}
+
+		public List<ImplementerViewModel> GetFilteredList(ImplementerSearchModel model)
+		{
+			if (!model.Id.HasValue && string.IsNullOrEmpty(model.Login))
+				return new();
+			using var context = new FactoryGoWorkDatabase();
+			if (model.Id.HasValue)
+			{
+				return context.Implementers.Where(x => x.Id == model.Id).Select(x => x.GetViewModel).ToList();
+			}
+			else
+			{
+				return context.Implementers.Where(x => x.Login.Equals(model.Login)).Select(x => x.GetViewModel).ToList();
+			}
+		}
+
+		public List<ImplementerViewModel> GetFullList()
+		{
+			using var context = new FactoryGoWorkDatabase();
+			return context.Implementers.Select(x => x.GetViewModel).ToList();
+		}
+
+		public ImplementerViewModel? Insert(ImplementerBindingModel model)
+		{
+			using var context = new FactoryGoWorkDatabase();
+			var newImplementer = Implementer.Create(model);
+			if (newImplementer == null)
+				return null;
+			context.Implementers.Add(newImplementer);
+			context.SaveChanges();
+			return newImplementer.GetViewModel;
+		}
+
+		public ImplementerViewModel? Update(ImplementerBindingModel model)
+		{
+			using var context = new FactoryGoWorkDatabase();
+			var newImplementer = context.Implementers.FirstOrDefault(x => x.Id == model.Id);
+			if (newImplementer == null)
+				return null;
+			newImplementer.Update(model);
+			context.SaveChanges();
+			return newImplementer.GetViewModel;
+		}
+	}
+}