add BusinessLogic

CarShowroom/CarShowroom.sln

@@ -5,9 +5,11 @@ VisualStudioVersion = 17.9.34723.18
 MinimumVisualStudioVersion = 10.0.40219.1
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarShowroomDataModels", "CarShowroomDataModels\CarShowroomDataModels.csproj", "{7EECD77A-5D26-4093-85B0-F2D33C6F0C2C}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarShowroomContracts", "CarShowroomContracts\CarShowroomContracts.csproj", "{6274B5CD-C339-4FD3-AC45-DE8384AD4CB7}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarShowroomContracts", "CarShowroomContracts\CarShowroomContracts.csproj", "{6274B5CD-C339-4FD3-AC45-DE8384AD4CB7}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarShowroomDatabaseStorage", "CarShowroomDatabaseStorage\CarShowroomDatabaseStorage.csproj", "{7F0A0E4D-6EFD-459D-AFFF-99F3185243F8}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "CarShowroomDatabaseStorage", "CarShowroomDatabaseStorage\CarShowroomDatabaseStorage.csproj", "{7F0A0E4D-6EFD-459D-AFFF-99F3185243F8}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "CarShowroomBusinessLogic", "CarShowroomBusinessLogic\CarShowroomBusinessLogic.csproj", "{B0DA0319-2DBC-4785-BA5F-338AD5E3E437}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -27,6 +29,10 @@ Global
 		{7F0A0E4D-6EFD-459D-AFFF-99F3185243F8}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{7F0A0E4D-6EFD-459D-AFFF-99F3185243F8}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{7F0A0E4D-6EFD-459D-AFFF-99F3185243F8}.Release|Any CPU.Build.0 = Release|Any CPU
+		{B0DA0319-2DBC-4785-BA5F-338AD5E3E437}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{B0DA0319-2DBC-4785-BA5F-338AD5E3E437}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{B0DA0319-2DBC-4785-BA5F-338AD5E3E437}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{B0DA0319-2DBC-4785-BA5F-338AD5E3E437}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/CarLogic.cs

@@ -0,0 +1,89 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class CarLogic : ICarLogic
+    {
+        private readonly ICarStorage _carStorage;
+
+        public CarLogic(ICarStorage storage)
+        {
+            _carStorage = storage;
+        }
+
+        public List<CarView>? ReadList(CarSearch? model)
+        {
+            var list = model == null ? _carStorage.GetFullList() : _carStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public CarView? ReadElement(CarSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _carStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(CarDto model)
+        {
+            CheckModel(model);
+            if (_carStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(CarDto model)
+        {
+            CheckModel(model);
+            if (_carStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(CarDto model)
+        {
+            CheckModel(model, false);
+            if (_carStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(CarDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (model.ModelId < 0)
+                throw new InvalidOperationException();
+            if (string.IsNullOrEmpty(model.Color))
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/ClientLogic.cs

@@ -0,0 +1,95 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class ClientLogic : IClientLogic
+    {
+        private readonly IClientStorage _clientStorage;
+
+        public ClientLogic(IClientStorage storage)
+        {
+            _clientStorage = storage;
+        }
+
+        public List<ClientView>? ReadList(ClientSearch? model)
+        {
+            var list = model == null ? _clientStorage.GetFullList() : _clientStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public ClientView? ReadElement(ClientSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _clientStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(ClientDto model)
+        {
+            CheckModel(model);
+            if (_clientStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ClientDto model)
+        {
+            CheckModel(model);
+            if (_clientStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ClientDto model)
+        {
+            CheckModel(model, false);
+            if (_clientStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ClientDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (string.IsNullOrEmpty(model.Name))
+                throw new InvalidOperationException();
+            if (string.IsNullOrEmpty(model.PhoneNumber))
+                throw new InvalidOperationException();
+            var element = _clientStorage.GetElement(new ClientSearch
+            {
+                PhoneNumber = model.PhoneNumber,
+            });
+            if (element != null && element.Id != model.Id)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/EmployeeLogic.cs

@@ -0,0 +1,97 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class EmployeeLogic : IEmployeeLogic
+    {
+        private readonly IEmployeeStorage _employeeStorage;
+
+        public EmployeeLogic(IEmployeeStorage storage)
+        {
+            _employeeStorage = storage;
+        }
+
+        public List<EmployeeView>? ReadList(EmployeeSearch? model)
+        {
+            var list = model == null ? _employeeStorage.GetFullList() : _employeeStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public EmployeeView? ReadElement(EmployeeSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _employeeStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(EmployeeDto model)
+        {
+            CheckModel(model);
+            if (_employeeStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(EmployeeDto model)
+        {
+            CheckModel(model);
+            if (_employeeStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(EmployeeDto model)
+        {
+            CheckModel(model, false);
+            if (_employeeStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(EmployeeDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (string.IsNullOrEmpty(model.Name))
+                throw new InvalidOperationException();
+            if (string.IsNullOrEmpty(model.Email))
+                throw new InvalidOperationException();
+            if (string.IsNullOrEmpty(model.Password))
+                throw new InvalidOperationException();
+            var element = _employeeStorage.GetElement(new EmployeeSearch
+            {
+                Email = model.Email,
+            });
+            if (element != null && element.Id != model.Id)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/MakeLogic.cs

@@ -0,0 +1,93 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class MakeLogic : IMakeLogic
+    {
+        private readonly IMakeStorage _makeStorage;
+
+        public MakeLogic(IMakeStorage storage)
+        {
+            _makeStorage = storage;
+        }
+
+        public List<MakeView>? ReadList(MakeSearch? model)
+        {
+            var list = model == null ? _makeStorage.GetFullList() : _makeStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public MakeView? ReadElement(MakeSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _makeStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(MakeDto model)
+        {
+            CheckModel(model);
+            if (_makeStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(MakeDto model)
+        {
+            CheckModel(model);
+            if (_makeStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(MakeDto model)
+        {
+            CheckModel(model, false);
+            if (_makeStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(MakeDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (string.IsNullOrEmpty(model.Name))
+                throw new InvalidOperationException();
+            var element = _makeStorage.GetElement(new MakeSearch
+            {
+                Name = model.Name,
+            });
+            if (element != null && element.Id != model.Id)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/ModelStorage.cs

@@ -0,0 +1,97 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class ModelLogic : IModelLogic
+    {
+        private readonly IModelStorage _modelStorage;
+
+        public ModelLogic(IModelStorage storage)
+        {
+            _modelStorage = storage;
+        }
+
+        public List<ModelView>? ReadList(ModelSearch? model)
+        {
+            var list = model == null ? _modelStorage.GetFullList() : _modelStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public ModelView? ReadElement(ModelSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _modelStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(ModelDto model)
+        {
+            CheckModel(model);
+            if (_modelStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ModelDto model)
+        {
+            CheckModel(model);
+            if (_modelStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ModelDto model)
+        {
+            CheckModel(model, false);
+            if (_modelStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ModelDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (string.IsNullOrEmpty(model.Name))
+                throw new InvalidOperationException();
+            if (model.MakeId < 0)
+                throw new InvalidOperationException();
+            if (model.Price < 0)
+                throw new InvalidOperationException();
+            var element = _modelStorage.GetElement(new ModelSearch
+            {
+                Name = model.Name,
+            });
+            if (element != null && element.Id != model.Id)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/SaleLogic.cs

@@ -0,0 +1,91 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class SaleLogic : ISaleLogic
+    {
+        private readonly ISaleStorage _saleStorage;
+
+        public SaleLogic(ISaleStorage storage)
+        {
+            _saleStorage = storage;
+        }
+
+        public List<SaleView>? ReadList(SaleSearch? model)
+        {
+            var list = model == null ? _saleStorage.GetFullList() : _saleStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public SaleView? ReadElement(SaleSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _saleStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(SaleDto model)
+        {
+            CheckModel(model);
+            if (_saleStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(SaleDto model)
+        {
+            CheckModel(model);
+            if (_saleStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(SaleDto model)
+        {
+            CheckModel(model, false);
+            if (_saleStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(SaleDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (model.Cost < 0)
+                throw new InvalidOperationException();
+            if (model.EmployeeId < 0)
+                throw new InvalidOperationException();
+            if (model.ClientId < 0)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/BusinessLogic/ServiceLogic.cs

@@ -0,0 +1,96 @@
+using CarShowroomContracts.BusinessLogic;
+using CarShowroomContracts.StorageContracts;
+using CarShowroomDataModels.Dtos;
+using CarShowroomDataModels.SearchModel;
+using CarShowroomDataModels.Views;
+using ServiceShowroomContracts.BusinessLogic;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace CarShowroomBusinessLogic.BusinessLogic
+{
+    public class ServiceLogic : IServiceLogic
+    {
+        private readonly IServiceStorage _serviceStorage;
+
+        public ServiceLogic(IServiceStorage storage)
+        {
+            _serviceStorage = storage;
+        }
+
+        public List<ServiceView>? ReadList(ServiceSearch? model)
+        {
+            var list = model == null ? _serviceStorage.GetFullList() : _serviceStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                return null;
+            }
+            return list;
+        }
+
+        public ServiceView? ReadElement(ServiceSearch model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            var element = _serviceStorage.GetElement(model);
+            if (element == null)
+            {
+                return null;
+            }
+            return element;
+        }
+
+        public bool Create(ServiceDto model)
+        {
+            CheckModel(model);
+            if (_serviceStorage.Insert(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(ServiceDto model)
+        {
+            CheckModel(model);
+            if (_serviceStorage.Update(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        public bool Delete(ServiceDto model)
+        {
+            CheckModel(model, false);
+            if (_serviceStorage.Delete(model) == null)
+            {
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(ServiceDto model, bool withParams = true)
+        {
+            if (model == null)
+                throw new ArgumentNullException(nameof(model));
+            if (!withParams)
+                return;
+            if (string.IsNullOrEmpty(model.Name))
+                throw new InvalidOperationException();
+            if (model.Cost < 0)
+                throw new InvalidOperationException();
+            var element = _serviceStorage.GetElement(new ServiceSearch
+            {
+                Name = model.Name,
+            });
+            if (element != null && element.Id != model.Id)
+                throw new InvalidOperationException();
+        }
+    }
+}

CarShowroom/CarShowroomBusinessLogic/CarShowroomBusinessLogic.csproj

@@ -0,0 +1,14 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\CarShowroomContracts\CarShowroomContracts.csproj" />
+    <ProjectReference Include="..\CarShowroomDataModels\CarShowroomDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

CarShowroom/CarShowroomContracts/BusinessLogic/IMakeLogic.cs

@@ -1,4 +1,4 @@
-using CarShowroomContracts.Dtos;
+using CarShowroomDataModels.Dtos;
 using CarShowroomDataModels.Views;
 using CarShowroomDataModels.SearchModel;
 using System;

CarShowroom/CarShowroomDataModels/SearchModel/ClientSearch.cs

@@ -9,5 +9,6 @@ namespace CarShowroomDataModels.SearchModel
     public class ClientSearch
     {
         public int? Id;
+        public string? PhoneNumber;
     }
 }

CarShowroom/CarShowroomDataModels/SearchModel/MakeSearch.cs

@@ -9,5 +9,6 @@ namespace CarShowroomDataModels.SearchModel
     public class MakeSearch
     {
         public int? Id;
+        public string? Name;
     }
 }

CarShowroom/CarShowroomDataModels/SearchModel/ModelSearch.cs

@@ -9,5 +9,6 @@ namespace CarShowroomDataModels.SearchModel
     public class ModelSearch
     {
         public int? Id;
+        public string? Name;
     }
 }

CarShowroom/CarShowroomDataModels/SearchModel/ServiceSearch.cs

@@ -9,5 +9,6 @@ namespace CarShowroomDataModels.SearchModel
     public class ServiceSearch
     {
         public int? Id;
+        public string? Name;
     }
 }

CarShowroom/CarShowroomDatabaseStorage/Storages/ClientStorage.cs

@@ -23,26 +23,30 @@ namespace CarShowroomDatabaseStorage.Storages
 
         public List<ClientView> GetFilteredList(ClientSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.PhoneNumber))
             {
                 return new();
             }
             using var context = new CarShowroomDatabase();
             return context.Clients
-                .Where(x => !model.Id.HasValue || x.Id == model.Id)
+                .Where(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.PhoneNumber) || x.PhoneNumber.Equals(model.PhoneNumber)))
                 .Select(x => x.GetView())
                 .ToList();
         }
 
         public ClientView? GetElement(ClientSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.PhoneNumber))
             {
                 return null;
             }
             using var context = new CarShowroomDatabase();
             return context.Clients
-                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id)
+                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.PhoneNumber) || x.PhoneNumber.Equals(model.PhoneNumber)))
                 ?.GetView();
         }
 

CarShowroom/CarShowroomDatabaseStorage/Storages/EmployeeStorage.cs

@@ -31,10 +31,9 @@ namespace CarShowroomDatabaseStorage.Storages
             }
             using var context = new CarShowroomDatabase();
             return context.Employees
-                .Where(x => 
+                .Where(x => !model.Id.HasValue || x.Id == model.Id &&
-                    !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Password) || x.Password.Equals(model.Password)) &&
-                    (string.IsNullOrEmpty(model.Password) || x.Password == model.Password) &&
+                    (string.IsNullOrEmpty(model.Email) || x.Password.Equals(model.Email)))
-                    (string.IsNullOrEmpty(model.Email) || x.Password == model.Email))
                 .Select(x => x.GetView())
                 .ToList();
         }
@@ -49,10 +48,9 @@ namespace CarShowroomDatabaseStorage.Storages
             }
             using var context = new CarShowroomDatabase();
             return context.Employees
-                .FirstOrDefault(x =>
+                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id &&
-                    !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Password) || x.Password.Equals(model.Password)) &&
-                    (string.IsNullOrEmpty(model.Password) || x.Password == model.Password) &&
+                    (string.IsNullOrEmpty(model.Email) || x.Password.Equals(model.Email)))
-                    (string.IsNullOrEmpty(model.Email) || x.Password == model.Email))
                 ?.GetView();
         }
 

CarShowroom/CarShowroomDatabaseStorage/Storages/MakeStorage.cs

@@ -23,26 +23,30 @@ namespace CarShowroomDatabaseStorage.Storages
 
         public List<MakeView> GetFilteredList(MakeSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return new();
             }
             using var context = new CarShowroomDatabase();
             return context.Makes
-                .Where(x => !model.Id.HasValue || x.Id == model.Id)
+                .Where(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 .Select(x => x.GetView())
                 .ToList();
         }
 
         public MakeView? GetElement(MakeSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return null;
             }
             using var context = new CarShowroomDatabase();
             return context.Makes
-                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id)
+                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 ?.GetView();
         }
 

CarShowroom/CarShowroomDatabaseStorage/Storages/ModelStorage.cs

@@ -23,26 +23,30 @@ namespace CarShowroomDatabaseStorage.Storages
 
         public List<ModelView> GetFilteredList(ModelSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return new();
             }
             using var context = new CarShowroomDatabase();
             return context.Models
-                .Where(x => !model.Id.HasValue || x.Id == model.Id)
+                .Where(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 .Select(x => x.GetView())
                 .ToList();
         }
 
         public ModelView? GetElement(ModelSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return null;
             }
             using var context = new CarShowroomDatabase();
             return context.Models
-                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id)
+                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 ?.GetView();
         }
 
@@ -62,14 +66,14 @@ namespace CarShowroomDatabaseStorage.Storages
         public ModelView? Update(ModelDto model)
         {
             using var context = new CarShowroomDatabase();
-            var model = context.Models.FirstOrDefault(x => x.Id == model.Id);
+            var entity = context.Models.FirstOrDefault(x => x.Id == model.Id);
-            if (model == null)
+            if (entity == null)
             {
                 return null;
             }
-            model.Update(model);
+            entity.Update(entity);
             context.SaveChanges();
-            return model.GetView();
+            return entity.GetView();
         }
 
         public ModelView? Delete(ModelDto model)

CarShowroom/CarShowroomDatabaseStorage/Storages/ServiceStorage.cs

@@ -23,26 +23,30 @@ namespace CarShowroomDatabaseStorage.Storages
 
         public List<ServiceView> GetFilteredList(ServiceSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return new();
             }
             using var context = new CarShowroomDatabase();
             return context.Services
-                .Where(x => !model.Id.HasValue || x.Id == model.Id)
+                .Where(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 .Select(x => x.GetView())
                 .ToList();
         }
 
         public ServiceView? GetElement(ServiceSearch model)
         {
-            if (!model.Id.HasValue)
+            if (!model.Id.HasValue &&
+                string.IsNullOrEmpty(model.Name))
             {
                 return null;
             }
             using var context = new CarShowroomDatabase();
             return context.Services
-                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id)
+                .FirstOrDefault(x => !model.Id.HasValue || x.Id == model.Id &&
+                    (string.IsNullOrEmpty(model.Name) || x.Name.Equals(model.Name)))
                 ?.GetView();
         }