Psql implement done + models for many-to-many relationships + Buisness logic and forms for materials (testing purpouses)

ConstructionCompany/ConstructionCompany.sln

@@ -11,6 +11,8 @@ Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConstructionCompanyContract
 EndProject
 Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConstructionCompanyBusinessLogic", "ConstructionCompanyBusiness\ConstructionCompanyBusinessLogic.csproj", "{FB447245-07E1-4E0D-A4FC-701E295B7575}"
 EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "ConstructionCompanyPsqlImplement", "ConstructionCompanyPsqlImplement\ConstructionCompanyPsqlImplement.csproj", "{A92A2186-2021-4B42-B632-447A45EC3A58}"
+EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
 		Debug|Any CPU = Debug|Any CPU
@@ -33,6 +35,10 @@ Global
 		{FB447245-07E1-4E0D-A4FC-701E295B7575}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{FB447245-07E1-4E0D-A4FC-701E295B7575}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{FB447245-07E1-4E0D-A4FC-701E295B7575}.Release|Any CPU.Build.0 = Release|Any CPU
+		{A92A2186-2021-4B42-B632-447A45EC3A58}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{A92A2186-2021-4B42-B632-447A45EC3A58}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{A92A2186-2021-4B42-B632-447A45EC3A58}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{A92A2186-2021-4B42-B632-447A45EC3A58}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

ConstructionCompany/ConstructionCompanyBusiness/BusinessLogics/MaterialLogic.cs

@@ -0,0 +1,110 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyBusinessLogic.BusinessLogics
+{
+    public class MaterialLogic : IMaterialLogic
+    {
+        private readonly ILogger _logger;
+        private readonly IMaterialStorage _materialStorage;
+
+        public MaterialLogic(ILogger<MaterialLogic> logger, IMaterialStorage materialStorage)
+        {
+            _logger = logger;
+            _materialStorage = materialStorage;
+        }
+
+        public List<MaterialViewModel>? ReadList(MaterialSearchModel? model)
+        {
+            _logger.LogInformation("ReadList. MaterialName:{MaterialName}. Id:{Id}", model?.MaterialName, model?.Id);
+            var list = model == null ? _materialStorage.GetFullList() : _materialStorage.GetFilteredList(model);
+            if (list == null)
+            {
+                _logger.LogWarning("ReadList return null list");
+                return null;
+            }
+            _logger.LogInformation("ReadList. Count:{Count}", list.Count);
+            return list;
+        }
+
+        public MaterialViewModel? ReadElement(MaterialSearchModel model)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            _logger.LogInformation("ReadElement. MaterialName:{MaterialName}. Id:{Id}", model.MaterialName, model.Id);
+            var element = _materialStorage.GetElement(model);
+            if (element == null)
+            {
+                _logger.LogWarning("ReadElement element not found");
+                return null;
+            }
+            _logger.LogInformation("ReadElement find. Id:{Id}", element.Id);
+            return element;
+        }
+
+        public bool Create(MaterialBindingModel model)
+        {
+            CheckModel(model);
+            if (_materialStorage.Insert(model) == null)
+            {
+                _logger.LogWarning("Insert operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        public bool Update(MaterialBindingModel model)
+        {
+            CheckModel(model);
+            if (_materialStorage.Update(model) == null)
+            {
+                _logger.LogWarning("Update operation failed");
+                return false;
+            }
+            return true;
+        }
+        public bool Delete(MaterialBindingModel model)
+        {
+            CheckModel(model, false);
+            _logger.LogInformation("Delete. Id:{Id}", model.Id);
+            if (_materialStorage.Delete(model) == null)
+            {
+                _logger.LogWarning("Delete operation failed");
+                return false;
+            }
+            return true;
+        }
+
+        private void CheckModel(MaterialBindingModel model, bool withParams = true)
+        {
+            if (model == null)
+            {
+                throw new ArgumentNullException(nameof(model));
+            }
+            if (!withParams)
+            {
+                return;
+            }
+            if (string.IsNullOrEmpty(model.MaterialName))
+            {
+                throw new ArgumentNullException("Нет названия материала", nameof(model.MaterialName));
+            }
+            if (model.Quantity < 0)
+            {
+                throw new ArgumentNullException("Количество материалов должна быть не меньше 0!", nameof(model.Quantity));
+            }
+            _logger.LogInformation("Material. IngredietnName:{MaterialName}. Cost:{Quantity}. Id:{Id}", model.MaterialName, model.Quantity, model.Id);
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyBusiness/ConstructionCompanyBusinessLogic.csproj

@@ -0,0 +1,17 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConstructionCompanyContracts\ConstructionCompanyContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ConstructionCompany/ConstructionCompanyContracts/BindingModels/EmployeeOrderBindingModel.cs

@@ -0,0 +1,15 @@
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.BindingModels
+{
+    public class EmployeeOrderBindingModel : IEmployeeOrderModel
+    {
+        public int EmployeeId { get; set; }
+        public int OrderId { get; set; }
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/BindingModels/MaterialOrderBindingModel.cs

@@ -0,0 +1,16 @@
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.BindingModels
+{
+    public class MaterialOrderBindingModel : IMaterialOrderModel
+    {
+        public int MaterialId { get; set; }
+        public int OrderId { get; set; }
+        public int Quantity { get; set; }
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IEmployeeOrderLogic.cs

@@ -0,0 +1,20 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.BusinessLogicContracts
+{
+    public interface IEmployeeOrderLogic
+    {
+        List<EmployeeOrderViewModel>? ReadList(EmployeeOrderSearchModel? model);
+        EmployeeOrderViewModel? ReadElement(EmployeeOrderSearchModel model);
+        bool Create(EmployeeOrderBindingModel model);
+        bool Update(EmployeeOrderBindingModel model);
+        bool Delete(EmployeeOrderBindingModel model);
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/BusinessLogicContracts/IMaterialOrderLogic.cs

@@ -0,0 +1,20 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.BusinessLogicContracts
+{
+    public interface IMaterialOrderLogic
+    {
+        List<MaterialOrderViewModel>? ReadList(MaterialOrderSearchModel? model);
+        MaterialOrderViewModel? ReadElement(MaterialOrderSearchModel model);
+        bool Create(MaterialOrderBindingModel model);
+        bool Update(MaterialOrderBindingModel model);
+        bool Delete(MaterialOrderBindingModel model);
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/SearchModels/EmployeeOrderSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.SearchModels
+{
+    public class EmployeeOrderSearchModel
+    {
+        public int? EmployeeId { get; set; }
+        public int? OrderId { get; set; }
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/SearchModels/MaterialOrderSearchModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.SearchModels
+{
+    public class MaterialOrderSearchModel
+    {
+        public int? MaterialId { get; set; }
+        public int? OrderId { get; set; }
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/StorageContracts/IEmployeeOrderStorage.cs

@@ -0,0 +1,20 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.StorageContracts
+{
+    public interface IEmployeeOrderStorage
+    {
+        List<EmployeeOrderViewModel> GetFullList();
+        List<EmployeeOrderViewModel> GetFilteredList(EmployeeOrderSearchModel model);
+        EmployeeOrderViewModel? GetElement(EmployeeOrderSearchModel model);
+        EmployeeOrderViewModel? Insert(EmployeeOrderBindingModel model);
+        EmployeeOrderViewModel? Delete(EmployeeOrderBindingModel model);
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/StorageContracts/IMaterialOrderStorage.cs

@@ -0,0 +1,20 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.ViewModels;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.StorageContracts
+{
+    public interface IMaterialOrderStorage
+    {
+        List<MaterialOrderViewModel> GetFullList();
+        List<MaterialOrderViewModel> GetFilteredList(MaterialOrderSearchModel model);
+        MaterialOrderViewModel? GetElement(MaterialOrderSearchModel model);
+        MaterialOrderViewModel? Insert(MaterialOrderBindingModel model);
+        MaterialOrderViewModel? Delete(MaterialOrderBindingModel model);
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/ViewModels/EmployeeOrderViewModel.cs

@@ -0,0 +1,20 @@
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.ViewModels
+{
+    public class EmployeeOrderViewModel : IEmployeeOrderModel
+    {
+        public int EmployeeId { get; set; }
+        [DisplayName("ФИО сотрудника")]
+        public string EmployeeName { get; set; } = string.Empty;
+        public int OrderId { get; set; }
+        [DisplayName("Адресс заказа")]
+        public string OrderAdress { get; set; } = string.Empty;
+    }
+}

ConstructionCompany/ConstructionCompanyContracts/ViewModels/MaterialOrderViewModel.cs

@@ -0,0 +1,22 @@
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyContracts.ViewModels
+{
+    public class MaterialOrderViewModel : IMaterialOrderModel
+    {
+        public int MaterialId { get; set; }
+        [DisplayName("Название материала")]
+        public string MaterialName { get; set; } = string.Empty;
+        public int OrderId { get; set; }
+        [DisplayName("Адресс заказа")]
+        public string OrderAdress { get; set; } = string.Empty;
+        [DisplayName("Количество")]
+        public int Quantity { get; set; }
+    }
+}

ConstructionCompany/ConstructionCompanyDataModels/Models/IEmployeeOrderModel.cs

@@ -0,0 +1,14 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyDataModels.Models
+{
+    public interface IEmployeeOrderModel
+    {
+        int EmployeeId { get; }
+        int OrderId { get; }
+    }
+}

ConstructionCompany/ConstructionCompanyDataModels/Models/IMaterialOrderModel.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyDataModels.Models
+{
+    public interface IMaterialOrderModel
+    {
+        int MaterialId { get; }
+        int OrderId { get; }
+        int Quantity { get; }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/ConstructionCompanyDatabase.cs

@@ -0,0 +1,208 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using ConstructionCompanyPsqlImplement.Models;
+using ConstructionCompanyContracts.BindingModels;
+using Microsoft.EntityFrameworkCore;
+using Npgsql;
+using ConstructionCompanyDataModels.Enums;
+
+namespace ConstructionCompanyPsqlImplement
+{
+    public class ConstructionCompanyDatabase
+    {
+        static string connectionString = "Server=192.168.1.35;Port=5432;Database=ConstructionCompanyForwardEngineerd;User Id=postgres;Password=postgres;";
+
+        private static ConstructionCompanyDatabase? _instance;
+        private List<Material> _materials = new List<Material>();
+        private List<Employee> _employees = new List<Employee>();
+        private List<Position> _positions = new List<Position>();
+        private List<Order> _orders = new List<Order>();
+        private List<EmployeeOrder> _employeeOrders = new List<EmployeeOrder>();
+        private List<MaterialOrder> _materialOrders = new List<MaterialOrder>();
+        public List<Material> Materials 
+        {
+            get
+            {
+                refreshDb();
+                return _materials;
+            }
+        }
+        public List<Employee> Employees
+        {
+            get
+            {
+                refreshDb();
+                return _employees;
+            }
+        }
+        public List<Position> Positions
+        {
+            get
+            {
+                refreshDb();
+                return _positions;
+            }
+        }
+        public List<Order> Orders
+        {
+            get
+            {
+                refreshDb();
+                return _orders;
+            }
+        }
+
+        public List<EmployeeOrder> EmployeeOrders
+        {
+            get
+            {
+                refreshDb();
+                return _employeeOrders;
+            }
+        }
+
+        public List<MaterialOrder> MaterialOrders
+        {
+            get
+            {
+                refreshDb();
+                return _materialOrders;
+            }
+        }
+
+        public static ConstructionCompanyDatabase GetInstance()
+        {
+            if (_instance == null)
+            {
+                _instance = new ConstructionCompanyDatabase();
+            }
+            return _instance;
+        }
+
+        public void ExecuteSql(string commandString)
+        {
+            using var connection = new NpgsqlConnection(connectionString);
+            connection.Open();
+            using var command = connection.CreateCommand();
+            command.CommandText = commandString;
+            command.ExecuteNonQuery();
+            refreshDb();
+            connection.Close();
+        }
+
+        private void refreshDb()
+        {
+            _materials.Clear();
+            _positions.Clear();
+            _employees.Clear();
+            _orders.Clear();
+            _employeeOrders.Clear();
+            _materialOrders.Clear();
+            using var connection = new NpgsqlConnection(connectionString);
+            connection.Open();
+
+            using var commandMaterials = connection.CreateCommand();
+            commandMaterials.CommandText = "SELECT * FROM material;";
+            using var readerMaterials =  commandMaterials.ExecuteReader();
+            while (readerMaterials.Read())
+            {
+                int id = readerMaterials.GetInt32(0);
+                string name = readerMaterials.GetString(1);
+                int quantity = readerMaterials.GetInt32(2);
+                Material? mat = Material.Create(new MaterialBindingModel { Id = id, MaterialName = name, Quantity = quantity });
+                if (mat != null) _materials.Add(mat);
+            }
+            readerMaterials.Close();
+
+            using var commandPositions = connection.CreateCommand();
+            commandPositions.CommandText = "SELECT * FROM position;";
+            using var readerPositions = commandPositions.ExecuteReader();
+            while (readerPositions.Read())
+            {
+                int id = readerPositions.GetInt32(0);
+                string name = readerPositions.GetString(1);
+                double salary = readerPositions.GetDouble(2);
+                Position? position = Position.Create(new PositionBindingModel { Id = id, PositionName = name, Salary = salary });
+                if (position != null) _positions.Add(position);
+            }
+            readerPositions.Close();
+
+            using var commandEmployees = connection.CreateCommand();
+            commandEmployees.CommandText = "SELECT * FROM employee;";
+            using var readerEmployees = commandEmployees.ExecuteReader();
+            while (readerEmployees.Read())
+            {
+                int id = readerEmployees.GetInt32(0);
+                string name = readerEmployees.GetString(1);
+                int positionId = readerEmployees.GetInt32(2);
+                Employee? employee = Employee.Create(new EmployeeBindingModel { Id = id, EmployeeName = name, PositionID = positionId }, _positions);
+                if (employee != null) _employees.Add(employee);
+            }
+            readerEmployees.Close();
+
+            using var commandOrders = connection.CreateCommand();
+            commandOrders.CommandText = "SELECT * FROM \"order\";";
+            using var readerOrders = commandOrders.ExecuteReader();
+            while (readerOrders.Read())
+            {
+                int id = readerOrders.GetInt32(0);
+                string description = readerOrders.GetString(1);
+                string adress = readerOrders.GetString(2);
+                double price = readerOrders.GetDouble(3);
+                string statusString = readerOrders.GetString(4);
+                OrderStatus status;
+                switch (statusString)
+                {
+                    case "Принят":
+                        status = OrderStatus.Принят;
+                        break;
+                    case "Выполняется":
+                        status = OrderStatus.Выполняется;
+                        break;
+                    case "Завершён":
+                        status = OrderStatus.Завершён;
+                        break;
+                    default:
+                        status = OrderStatus.Неизвестен;
+                        break;
+                }
+                string customerNumber = readerOrders.GetString(5);
+                DateTime dateBegin = readerOrders.GetDateTime(6);
+                DateTime? dateEnd = readerOrders.GetDateTime(7);
+                Order? order = Order.Create(new OrderBindingModel { Id = id, Description = description, Adress = adress, Price = price, Status = status, CustomerNumber = customerNumber, DateBegin = dateBegin, DateEnd = dateEnd});
+                if (order != null) _orders.Add(order);
+            }
+            readerOrders.Close();
+
+            using var commandEmployeeOrders = connection.CreateCommand();
+            commandEmployeeOrders.CommandText = "SELECT * FROM employee_order;";
+            using var readerEmployeeOrders = commandEmployeeOrders.ExecuteReader();
+            while (readerEmployeeOrders.Read())
+            {
+                int employeeId = readerEmployeeOrders.GetInt32(0);
+                int orderId = readerEmployeeOrders.GetInt32(1);
+                EmployeeOrder? employeeOrder = EmployeeOrder.Create(new EmployeeOrderBindingModel { EmployeeId = employeeId, OrderId = orderId}, _employees, _orders);
+                if (employeeOrder != null) _employeeOrders.Add(employeeOrder);
+            }
+            readerEmployeeOrders.Close();
+
+            using var commandMaterialOrders = connection.CreateCommand();
+            commandMaterialOrders.CommandText = "SELECT * FROM material_order;";
+            using var readerMaterialOrders = commandMaterialOrders.ExecuteReader();
+            while (readerMaterialOrders.Read())
+            {
+                int materialId = readerMaterialOrders.GetInt32(0);
+                int orderId = readerMaterialOrders.GetInt32(1);
+                int quantity = readerMaterialOrders.GetInt32(2);
+                MaterialOrder? materialOrder = MaterialOrder.Create(new MaterialOrderBindingModel { MaterialId = materialId, OrderId = orderId, Quantity = quantity}, _materials, _orders);
+                if (materialOrder != null) _materialOrders.Add(materialOrder);
+            }
+            readerMaterialOrders.Close();
+
+            connection.Close();
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/ConstructionCompanyPsqlImplement.csproj

@@ -0,0 +1,26 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+    <UserSecretsId>9152d6ad-e687-4e3f-836c-fd7263918b1d</UserSecretsId>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.4" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.4">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql" Version="7.0.2" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL.NodaTime" Version="7.0.3" />
+    <PackageReference Include="Npgsql.NodaTime" Version="7.0.2" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConstructionCompanyContracts\ConstructionCompanyContracts.csproj" />
+  </ItemGroup>
+
+</Project>

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/EmployeeOrderStorage.cs

@@ -0,0 +1,78 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class EmployeeOrderStorage : IEmployeeOrderStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public EmployeeOrderStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<EmployeeOrderViewModel> GetFullList()
+        {
+            List<EmployeeOrderViewModel> result = new List<EmployeeOrderViewModel>();
+            foreach (var material in _source.EmployeeOrders)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<EmployeeOrderViewModel> GetFilteredList(EmployeeOrderSearchModel model)
+        {
+            if (model == null || !model.OrderId.HasValue || !model.EmployeeId.HasValue)
+            {
+                return new();
+            }
+            List<EmployeeOrderViewModel> result = new List<EmployeeOrderViewModel>();
+            foreach (var material in _source.EmployeeOrders)
+            {
+                if (material.EmployeeId == model.EmployeeId && material.OrderId == model.OrderId) result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public EmployeeOrderViewModel? GetElement(EmployeeOrderSearchModel model)
+        {
+            if (model == null || !model.OrderId.HasValue || !model.EmployeeId.HasValue)
+            {
+                return new();
+            }
+            return _source.EmployeeOrders.FirstOrDefault(x => x.EmployeeId == model.EmployeeId && x.OrderId == model.OrderId)?.GetViewModel;
+        }
+
+        public EmployeeOrderViewModel? Insert(EmployeeOrderBindingModel model)
+        {
+            var command = EmployeeOrder.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newEmployeeOrder = _source.EmployeeOrders[_source.EmployeeOrders.Count - 1];
+            return newEmployeeOrder.GetViewModel;
+        }
+
+        public EmployeeOrderViewModel? Delete(EmployeeOrderBindingModel model)
+        {
+            var command = EmployeeOrder.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedEmployeeOrder = _source.EmployeeOrders.First(x => x.EmployeeId == model.EmployeeId && x.OrderId == model.OrderId).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedEmployeeOrder;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/EmployeeStorage.cs

@@ -0,0 +1,101 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class EmployeeStorage : IEmployeeStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public EmployeeStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<EmployeeViewModel> GetFullList()
+        {
+            List<EmployeeViewModel> result = new List<EmployeeViewModel>();
+            foreach (var material in _source.Employees)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<EmployeeViewModel> GetFilteredList(EmployeeSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue && string.IsNullOrEmpty(model.EmployeeName))
+            {
+                return new();
+            }
+            List<EmployeeViewModel> result = new List<EmployeeViewModel>();
+            if (!string.IsNullOrEmpty(model.EmployeeName))
+            {
+                foreach (var material in _source.Employees)
+                {
+                    if (material.EmployeeName.Equals(model.EmployeeName)) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+            else
+            {
+                foreach (var material in _source.Employees)
+                {
+                    if (material.Id == model.Id) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+        }
+
+        public EmployeeViewModel? GetElement(EmployeeSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue)
+            {
+                return new();
+            }
+            return _source.Employees.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+
+        public EmployeeViewModel? Insert(EmployeeBindingModel model)
+        {
+            var command = Employee.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newEmployee = _source.Employees[_source.Employees.Count - 1];
+            return newEmployee.GetViewModel;
+        }
+
+        public EmployeeViewModel? Update(EmployeeBindingModel model)
+        {
+            var command = Employee.UpdateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var updatedEmployee = _source.Employees.First(x => x.Id == model.Id);
+            return updatedEmployee.GetViewModel;
+        }
+
+        public EmployeeViewModel? Delete(EmployeeBindingModel model)
+        {
+            var command = Employee.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedEmployee = _source.Employees.First(x => x.Id == model.Id).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedEmployee;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/MaterialOrderStorage.cs

@@ -0,0 +1,79 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class MaterialOrderStorage : IMaterialOrderStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public MaterialOrderStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<MaterialOrderViewModel> GetFullList()
+        {
+            List<MaterialOrderViewModel> result = new List<MaterialOrderViewModel>();
+            foreach (var material in _source.MaterialOrders)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<MaterialOrderViewModel> GetFilteredList(MaterialOrderSearchModel model)
+        {
+            if (model == null || !model.OrderId.HasValue || !model.MaterialId.HasValue)
+            {
+                return new();
+            }
+            List<MaterialOrderViewModel> result = new List<MaterialOrderViewModel>();
+            foreach (var material in _source.MaterialOrders)
+            {
+                if (material.MaterialId == model.MaterialId && material.OrderId == model.OrderId) result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public MaterialOrderViewModel? GetElement(MaterialOrderSearchModel model)
+        {
+            if (model == null || !model.OrderId.HasValue || !model.MaterialId.HasValue)
+            {
+                return new();
+            }
+            return _source.MaterialOrders.FirstOrDefault(x => x.MaterialId == model.MaterialId && x.OrderId == model.OrderId)?.GetViewModel;
+        }
+
+        public MaterialOrderViewModel? Insert(MaterialOrderBindingModel model)
+        {
+            var command = MaterialOrder.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newMaterialOrder = _source.MaterialOrders[_source.MaterialOrders.Count - 1];
+            return newMaterialOrder.GetViewModel;
+        }
+
+        public MaterialOrderViewModel? Delete(MaterialOrderBindingModel model)
+        {
+            var command = MaterialOrder.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedMaterialOrder = _source.MaterialOrders.First(x => x.MaterialId == model.MaterialId && x.OrderId == model.OrderId).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedMaterialOrder;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/MaterialStorage.cs

@@ -0,0 +1,101 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class MaterialStorage : IMaterialStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public MaterialStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<MaterialViewModel> GetFullList()
+        {
+            List<MaterialViewModel> result = new List<MaterialViewModel>();
+            foreach (var material in _source.Materials)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<MaterialViewModel> GetFilteredList(MaterialSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue || string.IsNullOrEmpty(model.MaterialName))
+            {
+                return new();
+            }
+            List<MaterialViewModel> result = new List<MaterialViewModel>();
+            if (!string.IsNullOrEmpty(model.MaterialName))
+            {
+                foreach (var material in _source.Materials)
+                {
+                    if (material.MaterialName.Equals(model.MaterialName)) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+            else
+            {
+                foreach (var material in _source.Materials)
+                {
+                    if (material.Id == model.Id) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+        }
+
+        public MaterialViewModel? GetElement(MaterialSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue)
+            {
+                return new();
+            }
+            return _source.Materials.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+
+        public MaterialViewModel? Insert(MaterialBindingModel model)
+        {
+            var command = Material.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newMaterial = _source.Materials[_source.Materials.Count - 1];
+            return newMaterial.GetViewModel;
+        }
+
+        public MaterialViewModel? Update(MaterialBindingModel model)
+        {
+            var command = Material.UpdateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var updatedMaterial = _source.Materials.First(x => x.Id == model.Id);
+            return updatedMaterial.GetViewModel;
+        }
+
+        public MaterialViewModel? Delete(MaterialBindingModel model)
+        {
+            var command = Material.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedMaterial = _source.Materials.First(x => x.Id == model.Id).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedMaterial;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/OrderStorage.cs

@@ -0,0 +1,90 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public OrderStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            List<OrderViewModel> result = new List<OrderViewModel>();
+            foreach (var material in _source.Orders)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue)
+            {
+                return new();
+            }
+            List<OrderViewModel> result = new List<OrderViewModel>();
+            foreach (var material in _source.Orders)
+            {
+                if (material.Id == model.Id) result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue)
+            {
+                return new();
+            }
+            return _source.Orders.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            var command = Order.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newOrder = _source.Orders[_source.Orders.Count - 1];
+            return newOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var command = Order.UpdateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var updatedOrder = _source.Orders.First(x => x.Id == model.Id);
+            return updatedOrder.GetViewModel;
+        }
+
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var command = Order.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedOrder = _source.Orders.First(x => x.Id == model.Id).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedOrder;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Implements/PositionStorage.cs

@@ -0,0 +1,101 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyPsqlImplement.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Implements
+{
+    public class PositionStorage : IPositionStorage
+    {
+        private readonly ConstructionCompanyDatabase _source;
+        public PositionStorage()
+        {
+            _source = ConstructionCompanyDatabase.GetInstance();
+        }
+        public List<PositionViewModel> GetFullList()
+        {
+            List<PositionViewModel> result = new List<PositionViewModel>();
+            foreach (var material in _source.Positions)
+            {
+                result.Add(material.GetViewModel);
+            }
+            return result;
+        }
+
+        public List<PositionViewModel> GetFilteredList(PositionSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue && string.IsNullOrEmpty(model.PositionName))
+            {
+                return new();
+            }
+            List<PositionViewModel> result = new List<PositionViewModel>();
+            if (!string.IsNullOrEmpty(model.PositionName))
+            {
+                foreach (var material in _source.Positions)
+                {
+                    if (material.PositionName.Equals(model.PositionName)) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+            else
+            {
+                foreach (var material in _source.Positions)
+                {
+                    if (material.Id == model.Id) result.Add(material.GetViewModel);
+                }
+                return result;
+            }
+        }
+
+        public PositionViewModel? GetElement(PositionSearchModel model)
+        {
+            if (model == null || !model.Id.HasValue)
+            {
+                return new();
+            }
+            return _source.Positions.FirstOrDefault(x => x.Id == model.Id)?.GetViewModel;
+        }
+
+        public PositionViewModel? Insert(PositionBindingModel model)
+        {
+            var command = Position.CreateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var newPosition = _source.Positions[_source.Positions.Count - 1];
+            return newPosition.GetViewModel;
+        }
+
+        public PositionViewModel? Update(PositionBindingModel model)
+        {
+            var command = Position.UpdateCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            _source.ExecuteSql(command);
+            var updatedPosition = _source.Positions.First(x => x.Id == model.Id);
+            return updatedPosition.GetViewModel;
+        }
+
+        public PositionViewModel? Delete(PositionBindingModel model)
+        {
+            var command = Position.DeleteCommand(model);
+            if (string.IsNullOrEmpty(command))
+            {
+                return null;
+            }
+            var deletedPosition = _source.Positions.First(x => x.Id == model.Id).GetViewModel;
+            _source.ExecuteSql(command);
+            return deletedPosition;
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/Employee.cs

@@ -0,0 +1,76 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class Employee : IEmployeeModel
+    {
+        public string EmployeeName { get; private set; } = string.Empty;
+
+        public int Id { get; private set; }
+        public int PositionID { get; private set; }
+        public Position Position { get; set; } = new();
+
+        public static Employee? Create(EmployeeBindingModel? model, List<Position> positions)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Employee()
+            {
+                Id = model.Id,
+                EmployeeName = model.EmployeeName,
+                PositionID = model.PositionID,
+                Position = positions.First(x => x.Id == model.PositionID)
+            };
+        }
+        public void Update(EmployeeBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            EmployeeName = model.EmployeeName;
+            PositionID = model.PositionID;
+        }
+        public static string CreateCommand(EmployeeBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO employee(name, position_id) VALUES(\'{model.EmployeeName}\', {model.PositionID});";
+        }
+        public static string UpdateCommand(EmployeeBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"UPDATE employee SET \"name\" = \'{model.EmployeeName}\', position_id = {model.PositionID} WHERE id = {model.Id}";
+        }
+        public static string DeleteCommand(EmployeeBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM employee WHERE id = {model.Id}";
+        }
+
+        public EmployeeViewModel GetViewModel => new()
+        {
+            Id = Id,
+            EmployeeName = EmployeeName,
+            PositionID = PositionID,
+            PositionName = Position.PositionName
+        };
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/EmployeeOrder.cs

@@ -0,0 +1,56 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class EmployeeOrder : IEmployeeOrderModel
+    {
+        public int EmployeeId { get; set; }
+        public int OrderId { get; set; }
+        public Employee Employee { get; set; } = new();
+        public Order Order { get; set; } = new();
+        public static EmployeeOrder? Create(EmployeeOrderBindingModel? model, List<Employee> employees, List<Order> orders)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new EmployeeOrder()
+            {
+                EmployeeId = model.EmployeeId,
+                OrderId = model.OrderId,
+                Employee = employees.First(x => x.Id == model.EmployeeId),
+                Order = orders.First(x => x.Id == model.OrderId),
+            };
+        }
+        public static string CreateCommand(EmployeeOrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO employee_order(employee_id, order_id) VALUES({model.EmployeeId}, {model.OrderId});";
+        }
+        public static string DeleteCommand(EmployeeOrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM material WHERE employee_id = {model.EmployeeId} AND order_id = {model.OrderId}";
+        }
+        public EmployeeOrderViewModel GetViewModel => new()
+        {
+            OrderId = OrderId,
+            EmployeeId = EmployeeId,
+            OrderAdress = Order.Adress,
+            EmployeeName = Employee.EmployeeName
+        };
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/Material.cs

@@ -0,0 +1,73 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class Material : IMaterialModel
+    {
+        public string MaterialName {get; private set;} = string.Empty;
+
+        public int Quantity { get; set; }
+
+        public int Id { get; private set; }
+
+        public static Material? Create(MaterialBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Material()
+            {
+                Id = model.Id,
+                MaterialName = model.MaterialName,
+                Quantity = model.Quantity
+            };
+        }
+        public static string CreateCommand(MaterialBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO material(name, quantity) VALUES(\'{model.MaterialName}\', {model.Quantity});";
+        }
+        public static string UpdateCommand(MaterialBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"UPDATE material SET \"name\" = \'{model.MaterialName}\', quantity = {model.Quantity} WHERE id = {model.Id}";
+        }
+        public static string DeleteCommand(MaterialBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM material WHERE id = {model.Id}";
+        }
+        public void Update(MaterialBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            MaterialName = model.MaterialName;
+            Quantity = model.Quantity;
+        }
+        public MaterialViewModel GetViewModel => new()
+        {
+            Id = Id,
+            MaterialName = MaterialName,
+            Quantity = Quantity
+        };
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/MaterialOrder.cs

@@ -0,0 +1,59 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class MaterialOrder : IMaterialOrderModel
+    {
+        public int MaterialId { get; set; }
+        public int OrderId { get; set; }
+        public int Quantity { get; set; }
+        public Material Material { get; set; } = new();
+        public Order Order { get; set; } = new();
+        public static MaterialOrder? Create(MaterialOrderBindingModel? model, List<Material> materials, List<Order> orders)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new MaterialOrder()
+            {
+                MaterialId = model.MaterialId,
+                OrderId = model.OrderId,
+                Quantity = model.Quantity,
+                Material = materials.First(x => x.Id == model.MaterialId),
+                Order = orders.First(x => x.Id == model.OrderId),
+            };
+        }
+        public static string CreateCommand(MaterialOrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO material_order(material_id, order_id, quantity) VALUES({model.MaterialId}, {model.OrderId}, {model.Quantity});";
+        }
+        public static string DeleteCommand(MaterialOrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM material WHERE material_id = {model.MaterialId} AND order_id = {model.OrderId}";
+        }
+        public MaterialOrderViewModel GetViewModel => new()
+        {
+            OrderId = OrderId,
+            MaterialId = MaterialId,
+            Quantity = Quantity,
+            OrderAdress = Order.Adress,
+            MaterialName = Material.MaterialName
+        };
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/Order.cs

@@ -0,0 +1,100 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Enums;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class Order : IOrderModel
+    {
+        public int Id { get; private set; }
+        public string Description { get; private set; } = string.Empty;
+        public string Adress { get; private set; } = string.Empty;
+        public string CustomerNumber { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, IOrderModel> OrderEmolyees { get; private set; } = new Dictionary<int, IOrderModel>();
+        public Dictionary<int, (IMaterialModel, int)> OrderMaterials { get; private set; } = new Dictionary<int, (IMaterialModel, int)>();
+
+        public OrderStatus Status { get; private set; }
+
+        public DateTime DateBegin { get; private set; }
+
+        public DateTime? DateEnd { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                Description = model.Description,
+                Adress = model.Adress,
+                CustomerNumber = model.CustomerNumber,
+                Price = model.Price,
+                Status = model.Status,
+                DateBegin = model.DateBegin,
+                DateEnd = model.DateEnd,
+            };
+        }
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            if (model.DateEnd.HasValue) DateEnd = model.DateEnd;
+        }
+        public static string CreateCommand(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO \"order\"(description, adress, price, status, " +
+                $"customer_number, date_begin, date_end) VALUES(\'{model.Description}\', \'{model.Adress}\', {model.Price}, " +
+                $"\'{model.Status}\', \'{model.CustomerNumber}\', \'{model.DateBegin}\', " +
+                $"{(model.DateEnd.HasValue ? $"\'{model.DateEnd}\'" : "null")});";
+        }
+        public static string UpdateCommand(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"UPDATE \"order\" SET description = \'{model.Description}\', adress = \'{model.Adress}\', " +
+                $"price = {model.Price}, status = \'{model.Status}\', customer_number = \'{model.CustomerNumber}\', " +
+                $"date_begin = \'{model.CustomerNumber}\', date_end = {(model.DateEnd.HasValue ? $"\'{model.DateEnd}\'" : "null")} " +
+                $"WHERE id = {model.Id}";
+
+        }
+        public static string DeleteCommand(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM \"order\" WHERE id = {model.Id}";
+        }
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            Description = Description,
+            Adress = Adress,
+            CustomerNumber = CustomerNumber,
+            Price = Price,
+            Status = Status,
+            DateBegin = DateBegin,
+            DateEnd = DateEnd
+        };
+
+    }
+}

ConstructionCompany/ConstructionCompanyPsqlImplement/Models/Position.cs

@@ -0,0 +1,74 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.ViewModels;
+using ConstructionCompanyDataModels.Models;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace ConstructionCompanyPsqlImplement.Models
+{
+    public class Position : IPositionModel
+    {
+        public string PositionName { get; private set; } = string.Empty;
+
+        public double Salary { get; set; }
+
+        public int Id { get; private set; }
+
+        public static Position? Create(PositionBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Position()
+            {
+                Id = model.Id,
+                PositionName = model.PositionName,
+                Salary = model.Salary
+            };
+        }
+        public void Update(PositionBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PositionName = model.PositionName;
+            Salary = model.Salary;
+        }
+        public static string CreateCommand(PositionBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"INSERT INTO position(name, salary) VALUES(\'{model.PositionName}\', {model.Salary});";
+        }
+        public static string UpdateCommand(PositionBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"UPDATE position SET \"name\" = \'{model.PositionName}\', salary = {model.Salary} WHERE id = {model.Id}";
+        }
+        public static string DeleteCommand(PositionBindingModel? model)
+        {
+            if (model == null)
+            {
+                return "";
+            }
+            return $"DELETE FROM postition WHERE id = {model.Id}";
+        }
+
+        public PositionViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PositionName = PositionName,
+            Salary = Salary
+        };
+    }
+}

ConstructionCompany/ConstructionCompanyView/ConstructionCompanyView.csproj

@@ -8,4 +8,20 @@
     <ImplicitUsings>enable</ImplicitUsings>
   </PropertyGroup>
 
+  <ItemGroup>
+    <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
+    <PackageReference Include="Microsoft.Extensions.Logging.Abstractions" Version="7.0.0" />
+    <PackageReference Include="NLog" Version="5.1.3" />
+    <PackageReference Include="NLog.Config" Version="4.7.15" />
+    <PackageReference Include="NLog.Extensions.Logging" Version="5.2.3" />
+    <PackageReference Include="NLog.Schema" Version="5.1.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\ConstructionCompanyBusiness\ConstructionCompanyBusinessLogic.csproj" />
+    <ProjectReference Include="..\ConstructionCompanyContracts\ConstructionCompanyContracts.csproj" />
+    <ProjectReference Include="..\ConstructionCompanyPsqlImplement\ConstructionCompanyPsqlImplement.csproj" />
+  </ItemGroup>
+
 </Project>

ConstructionCompany/ConstructionCompanyView/Form1.Designer.cs

@@ -1,39 +0,0 @@
-namespace ConstructionCompanyView
-{
-    partial class Form1
-    {
-        /// <summary>
-        ///  Required designer variable.
-        /// </summary>
-        private System.ComponentModel.IContainer components = null;
-
-        /// <summary>
-        ///  Clean up any resources being used.
-        /// </summary>
-        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
-        protected override void Dispose(bool disposing)
-        {
-            if (disposing && (components != null))
-            {
-                components.Dispose();
-            }
-            base.Dispose(disposing);
-        }
-
-        #region Windows Form Designer generated code
-
-        /// <summary>
-        ///  Required method for Designer support - do not modify
-        ///  the contents of this method with the code editor.
-        /// </summary>
-        private void InitializeComponent()
-        {
-            this.components = new System.ComponentModel.Container();
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(800, 450);
-            this.Text = "Form1";
-        }
-
-        #endregion
-    }
-}

ConstructionCompany/ConstructionCompanyView/Form1.cs

@@ -1,10 +0,0 @@
-namespace ConstructionCompanyView
-{
-    public partial class Form1 : Form
-    {
-        public Form1()
-        {
-            InitializeComponent();
-        }
-    }
-}

ConstructionCompany/ConstructionCompanyView/Form1.resx

@@ -1,120 +0,0 @@
-<?xml version="1.0" encoding="utf-8"?>
-<root>
-  <!-- 
-    Microsoft ResX Schema 
-    
-    Version 2.0
-    
-    The primary goals of this format is to allow a simple XML format 
-    that is mostly human readable. The generation and parsing of the 
-    various data types are done through the TypeConverter classes 
-    associated with the data types.
-    
-    Example:
-    
-    ... ado.net/XML headers & schema ...
-    <resheader name="resmimetype">text/microsoft-resx</resheader>
-    <resheader name="version">2.0</resheader>
-    <resheader name="reader">System.Resources.ResXResourceReader, System.Windows.Forms, ...</resheader>
-    <resheader name="writer">System.Resources.ResXResourceWriter, System.Windows.Forms, ...</resheader>
-    <data name="Name1"><value>this is my long string</value><comment>this is a comment</comment></data>
-    <data name="Color1" type="System.Drawing.Color, System.Drawing">Blue</data>
-    <data name="Bitmap1" mimetype="application/x-microsoft.net.object.binary.base64">
-        <value>[base64 mime encoded serialized .NET Framework object]</value>
-    </data>
-    <data name="Icon1" type="System.Drawing.Icon, System.Drawing" mimetype="application/x-microsoft.net.object.bytearray.base64">
-        <value>[base64 mime encoded string representing a byte array form of the .NET Framework object]</value>
-        <comment>This is a comment</comment>
-    </data>
-                
-    There are any number of "resheader" rows that contain simple 
-    name/value pairs.
-    
-    Each data row contains a name, and value. The row also contains a 
-    type or mimetype. Type corresponds to a .NET class that support 
-    text/value conversion through the TypeConverter architecture. 
-    Classes that don't support this are serialized and stored with the 
-    mimetype set.
-    
-    The mimetype is used for serialized objects, and tells the 
-    ResXResourceReader how to depersist the object. This is currently not 
-    extensible. For a given mimetype the value must be set accordingly:
-    
-    Note - application/x-microsoft.net.object.binary.base64 is the format 
-    that the ResXResourceWriter will generate, however the reader can 
-    read any of the formats listed below.
-    
-    mimetype: application/x-microsoft.net.object.binary.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Binary.BinaryFormatter
-            : and then encoded with base64 encoding.
-    
-    mimetype: application/x-microsoft.net.object.soap.base64
-    value   : The object must be serialized with 
-            : System.Runtime.Serialization.Formatters.Soap.SoapFormatter
-            : and then encoded with base64 encoding.
-
-    mimetype: application/x-microsoft.net.object.bytearray.base64
-    value   : The object must be serialized into a byte array 
-            : using a System.ComponentModel.TypeConverter
-            : and then encoded with base64 encoding.
-    -->
-  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
-    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
-    <xsd:element name="root" msdata:IsDataSet="true">
-      <xsd:complexType>
-        <xsd:choice maxOccurs="unbounded">
-          <xsd:element name="metadata">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" />
-              </xsd:sequence>
-              <xsd:attribute name="name" use="required" type="xsd:string" />
-              <xsd:attribute name="type" type="xsd:string" />
-              <xsd:attribute name="mimetype" type="xsd:string" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="assembly">
-            <xsd:complexType>
-              <xsd:attribute name="alias" type="xsd:string" />
-              <xsd:attribute name="name" type="xsd:string" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="data">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
-              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
-              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
-              <xsd:attribute ref="xml:space" />
-            </xsd:complexType>
-          </xsd:element>
-          <xsd:element name="resheader">
-            <xsd:complexType>
-              <xsd:sequence>
-                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
-              </xsd:sequence>
-              <xsd:attribute name="name" type="xsd:string" use="required" />
-            </xsd:complexType>
-          </xsd:element>
-        </xsd:choice>
-      </xsd:complexType>
-    </xsd:element>
-  </xsd:schema>
-  <resheader name="resmimetype">
-    <value>text/microsoft-resx</value>
-  </resheader>
-  <resheader name="version">
-    <value>2.0</value>
-  </resheader>
-  <resheader name="reader">
-    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-  <resheader name="writer">
-    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
-  </resheader>
-</root>

ConstructionCompany/ConstructionCompanyView/FormMaterial.Designer.cs

@@ -0,0 +1,119 @@
+namespace ConstructionCompanyView
+{
+    partial class FormMaterial
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.label1 = new System.Windows.Forms.Label();
+            this.textBoxName = new System.Windows.Forms.TextBox();
+            this.textBoxQuantity = new System.Windows.Forms.TextBox();
+            this.label2 = new System.Windows.Forms.Label();
+            this.buttonCreate = new System.Windows.Forms.Button();
+            this.buttonCancel = new System.Windows.Forms.Button();
+            this.SuspendLayout();
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(12, 9);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(77, 20);
+            this.label1.TabIndex = 0;
+            this.label1.Text = "Название";
+            // 
+            // textBoxName
+            // 
+            this.textBoxName.Location = new System.Drawing.Point(108, 6);
+            this.textBoxName.Name = "textBoxName";
+            this.textBoxName.Size = new System.Drawing.Size(276, 27);
+            this.textBoxName.TabIndex = 1;
+            // 
+            // textBoxQuantity
+            // 
+            this.textBoxQuantity.Location = new System.Drawing.Point(108, 56);
+            this.textBoxQuantity.Name = "textBoxQuantity";
+            this.textBoxQuantity.Size = new System.Drawing.Size(113, 27);
+            this.textBoxQuantity.TabIndex = 3;
+            // 
+            // label2
+            // 
+            this.label2.AutoSize = true;
+            this.label2.Location = new System.Drawing.Point(12, 59);
+            this.label2.Name = "label2";
+            this.label2.Size = new System.Drawing.Size(90, 20);
+            this.label2.TabIndex = 2;
+            this.label2.Text = "Количество";
+            // 
+            // buttonCreate
+            // 
+            this.buttonCreate.Location = new System.Drawing.Point(202, 117);
+            this.buttonCreate.Name = "buttonCreate";
+            this.buttonCreate.Size = new System.Drawing.Size(94, 29);
+            this.buttonCreate.TabIndex = 4;
+            this.buttonCreate.Text = "Создать";
+            this.buttonCreate.UseVisualStyleBackColor = true;
+            this.buttonCreate.Click += new System.EventHandler(this.buttonCreate_Click);
+            // 
+            // buttonCancel
+            // 
+            this.buttonCancel.Location = new System.Drawing.Point(307, 117);
+            this.buttonCancel.Name = "buttonCancel";
+            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
+            this.buttonCancel.TabIndex = 5;
+            this.buttonCancel.Text = "Отмена";
+            this.buttonCancel.UseVisualStyleBackColor = true;
+            this.buttonCancel.Click += new System.EventHandler(this.buttonCancel_Click);
+            // 
+            // FormMaterial
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(413, 158);
+            this.Controls.Add(this.buttonCancel);
+            this.Controls.Add(this.buttonCreate);
+            this.Controls.Add(this.textBoxQuantity);
+            this.Controls.Add(this.label2);
+            this.Controls.Add(this.textBoxName);
+            this.Controls.Add(this.label1);
+            this.Name = "FormMaterial";
+            this.Text = "Материал";
+            this.Load += new System.EventHandler(this.FormMaterial_Load);
+            this.ResumeLayout(false);
+            this.PerformLayout();
+
+        }
+
+        #endregion
+
+        private Label label1;
+        private TextBox textBoxName;
+        private TextBox textBoxQuantity;
+        private Label label2;
+        private Button buttonCreate;
+        private Button buttonCancel;
+    }
+}

ConstructionCompany/ConstructionCompanyView/FormMaterial.cs

@@ -0,0 +1,96 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.SearchModels;
+using ConstructionCompanyContracts.StorageContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ConstructionCompanyView
+{
+    public partial class FormMaterial : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IMaterialLogic _logic;
+        private int? _id;
+        public int Id { set { _id = value; } }
+        public FormMaterial(ILogger<FormMaterial> logger, IMaterialLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void buttonCreate_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxName.Text))
+            {
+                MessageBox.Show("Заполните название", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (string.IsNullOrEmpty(textBoxQuantity.Text))
+            {
+                MessageBox.Show("Заполните количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            _logger.LogInformation("Сохранение материала");
+            try
+            {
+                var model = new MaterialBindingModel
+                {
+                    Id = _id ?? 0,
+                    MaterialName = textBoxName.Text,
+                    Quantity = Convert.ToInt32(textBoxQuantity.Text)
+                };
+                var operationResult = _id.HasValue ? _logic.Update(model) : _logic.Create(model);
+                if (!operationResult)
+                {
+                    throw new Exception("Ошибка при сохранении. Дополнительная информация в логах.");
+                }
+                MessageBox.Show("Сохранение прошло успешно", "Сообщение", MessageBoxButtons.OK, MessageBoxIcon.Information);
+                DialogResult = DialogResult.OK;
+                Close();
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка сохранения компонента");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonCancel_Click(object sender, EventArgs e)
+        {
+            DialogResult = DialogResult.Cancel;
+            Close();
+        }
+
+        private void FormMaterial_Load(object sender, EventArgs e)
+        {
+            if (_id.HasValue)
+            {
+                try
+                {
+                    _logger.LogInformation("Получение материала");
+                    var view = _logic.ReadElement(new MaterialSearchModel { Id = _id.Value });
+                    if (view != null)
+                    {
+                        textBoxName.Text = view.MaterialName;
+                        textBoxQuantity.Text = view.Quantity.ToString();
+                    }
+                }
+                catch (Exception ex)
+                {
+                    _logger.LogError(ex, "Ошибка получения материала");
+                    MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                }
+            }
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyView/FormMaterial.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

ConstructionCompany/ConstructionCompanyView/FormMaterials.Designer.cs

@@ -0,0 +1,120 @@
+namespace ConstructionCompanyView
+{
+    partial class FormMaterials
+    {
+        /// <summary>
+        /// Required designer variable.
+        /// </summary>
+        private System.ComponentModel.IContainer components = null;
+
+        /// <summary>
+        /// Clean up any resources being used.
+        /// </summary>
+        /// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
+        protected override void Dispose(bool disposing)
+        {
+            if (disposing && (components != null))
+            {
+                components.Dispose();
+            }
+            base.Dispose(disposing);
+        }
+
+        #region Windows Form Designer generated code
+
+        /// <summary>
+        /// Required method for Designer support - do not modify
+        /// the contents of this method with the code editor.
+        /// </summary>
+        private void InitializeComponent()
+        {
+            this.buttonRef = new System.Windows.Forms.Button();
+            this.buttonDel = new System.Windows.Forms.Button();
+            this.buttonUpd = new System.Windows.Forms.Button();
+            this.buttonAdd = new System.Windows.Forms.Button();
+            this.dataGridView = new System.Windows.Forms.DataGridView();
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
+            this.SuspendLayout();
+            // 
+            // buttonRef
+            // 
+            this.buttonRef.Location = new System.Drawing.Point(523, 186);
+            this.buttonRef.Name = "buttonRef";
+            this.buttonRef.Size = new System.Drawing.Size(94, 29);
+            this.buttonRef.TabIndex = 9;
+            this.buttonRef.Text = "Обновить";
+            this.buttonRef.UseVisualStyleBackColor = true;
+            this.buttonRef.Click += new System.EventHandler(this.buttonRef_Click);
+            // 
+            // buttonDel
+            // 
+            this.buttonDel.Location = new System.Drawing.Point(523, 128);
+            this.buttonDel.Name = "buttonDel";
+            this.buttonDel.Size = new System.Drawing.Size(94, 29);
+            this.buttonDel.TabIndex = 8;
+            this.buttonDel.Text = "Удалить";
+            this.buttonDel.UseVisualStyleBackColor = true;
+            this.buttonDel.Click += new System.EventHandler(this.buttonDel_Click);
+            // 
+            // buttonUpd
+            // 
+            this.buttonUpd.Location = new System.Drawing.Point(523, 71);
+            this.buttonUpd.Name = "buttonUpd";
+            this.buttonUpd.Size = new System.Drawing.Size(94, 29);
+            this.buttonUpd.TabIndex = 7;
+            this.buttonUpd.Text = "Изменить";
+            this.buttonUpd.UseVisualStyleBackColor = true;
+            this.buttonUpd.Click += new System.EventHandler(this.buttonUpd_Click);
+            // 
+            // buttonAdd
+            // 
+            this.buttonAdd.Location = new System.Drawing.Point(523, 14);
+            this.buttonAdd.Name = "buttonAdd";
+            this.buttonAdd.Size = new System.Drawing.Size(94, 29);
+            this.buttonAdd.TabIndex = 6;
+            this.buttonAdd.Text = "Добавить";
+            this.buttonAdd.UseVisualStyleBackColor = true;
+            this.buttonAdd.Click += new System.EventHandler(this.buttonAdd_Click);
+            // 
+            // dataGridView
+            // 
+            this.dataGridView.BackgroundColor = System.Drawing.Color.White;
+            this.dataGridView.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize;
+            this.dataGridView.Dock = System.Windows.Forms.DockStyle.Left;
+            this.dataGridView.Location = new System.Drawing.Point(0, 0);
+            this.dataGridView.MultiSelect = false;
+            this.dataGridView.Name = "dataGridView";
+            this.dataGridView.RowHeadersVisible = false;
+            this.dataGridView.RowHeadersWidth = 51;
+            this.dataGridView.RowTemplate.Height = 29;
+            this.dataGridView.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect;
+            this.dataGridView.Size = new System.Drawing.Size(489, 452);
+            this.dataGridView.TabIndex = 5;
+            // 
+            // FormMaterials
+            // 
+            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
+            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
+            this.ClientSize = new System.Drawing.Size(641, 452);
+            this.Controls.Add(this.buttonRef);
+            this.Controls.Add(this.buttonDel);
+            this.Controls.Add(this.buttonUpd);
+            this.Controls.Add(this.buttonAdd);
+            this.Controls.Add(this.dataGridView);
+            this.Name = "FormMaterials";
+            this.Text = "Материалы";
+            this.Load += new System.EventHandler(this.FormMaterials_Load);
+            ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).EndInit();
+            this.ResumeLayout(false);
+
+        }
+
+        #endregion
+
+        private Button buttonRef;
+        private Button buttonDel;
+        private Button buttonUpd;
+        private Button buttonAdd;
+        private DataGridView dataGridView;
+    }
+}

ConstructionCompany/ConstructionCompanyView/FormMaterials.cs

@@ -0,0 +1,110 @@
+using ConstructionCompanyContracts.BindingModels;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using Microsoft.Extensions.Logging;
+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Data;
+using System.Drawing;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+using System.Windows.Forms;
+
+namespace ConstructionCompanyView
+{
+    public partial class FormMaterials : Form
+    {
+        private readonly ILogger _logger;
+        private readonly IMaterialLogic _logic;
+
+        public FormMaterials(ILogger<FormMaterials> logger, IMaterialLogic logic)
+        {
+            InitializeComponent();
+            _logger = logger;
+            _logic = logic;
+        }
+
+        private void FormMaterials_Load(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+        private void LoadData()
+        {
+            try
+            {
+                var list = _logic.ReadList(null);
+                if (list != null)
+                {
+                    dataGridView.DataSource = list;
+                    dataGridView.Columns["Id"].Visible = false;
+                    dataGridView.Columns["MaterialName"].AutoSizeMode = DataGridViewAutoSizeColumnMode.Fill;
+                }
+                _logger.LogInformation("Загрузка материалов");
+            }
+            catch (Exception ex)
+            {
+                _logger.LogError(ex, "Ошибка загрузки материалов");
+                MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+            }
+        }
+
+        private void buttonAdd_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormMaterial));
+            if (service is FormMaterial form)
+            {
+                if (form.ShowDialog() == DialogResult.OK)
+                {
+                    LoadData();
+                }
+            }
+        }
+
+        private void buttonUpd_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                var service = Program.ServiceProvider?.GetService(typeof(FormMaterial));
+                if (service is FormMaterial form)
+                {
+                    form.Id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    if (form.ShowDialog() == DialogResult.OK)
+                    {
+                        LoadData();
+                    }
+                }
+            }
+        }
+
+        private void buttonDel_Click(object sender, EventArgs e)
+        {
+            if (dataGridView.SelectedRows.Count == 1)
+            {
+                if (MessageBox.Show("Удалить запись?", "Вопрос", MessageBoxButtons.YesNo, MessageBoxIcon.Question) == DialogResult.Yes)
+                {
+                    int id = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["Id"].Value);
+                    _logger.LogInformation("Удаление изделия");
+                    try
+                    {
+                        if (!_logic.Delete(new MaterialBindingModel { Id = id }))
+                        {
+                            throw new Exception("Ошибка при удалении. Дополнительная информация в логах.");
+                        }
+                        LoadData();
+                    }
+                    catch (Exception ex)
+                    {
+                        _logger.LogError(ex, "Ошибка удаления изделия");
+                        MessageBox.Show(ex.Message, "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                    }
+                }
+            }
+        }
+
+        private void buttonRef_Click(object sender, EventArgs e)
+        {
+            LoadData();
+        }
+    }
+}

ConstructionCompany/ConstructionCompanyView/FormMaterials.resx

@@ -0,0 +1,60 @@
+<root>
+  <xsd:schema id="root" xmlns="" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:msdata="urn:schemas-microsoft-com:xml-msdata">
+    <xsd:import namespace="http://www.w3.org/XML/1998/namespace" />
+    <xsd:element name="root" msdata:IsDataSet="true">
+      <xsd:complexType>
+        <xsd:choice maxOccurs="unbounded">
+          <xsd:element name="metadata">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" />
+              </xsd:sequence>
+              <xsd:attribute name="name" use="required" type="xsd:string" />
+              <xsd:attribute name="type" type="xsd:string" />
+              <xsd:attribute name="mimetype" type="xsd:string" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="assembly">
+            <xsd:complexType>
+              <xsd:attribute name="alias" type="xsd:string" />
+              <xsd:attribute name="name" type="xsd:string" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="data">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+                <xsd:element name="comment" type="xsd:string" minOccurs="0" msdata:Ordinal="2" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" msdata:Ordinal="1" />
+              <xsd:attribute name="type" type="xsd:string" msdata:Ordinal="3" />
+              <xsd:attribute name="mimetype" type="xsd:string" msdata:Ordinal="4" />
+              <xsd:attribute ref="xml:space" />
+            </xsd:complexType>
+          </xsd:element>
+          <xsd:element name="resheader">
+            <xsd:complexType>
+              <xsd:sequence>
+                <xsd:element name="value" type="xsd:string" minOccurs="0" msdata:Ordinal="1" />
+              </xsd:sequence>
+              <xsd:attribute name="name" type="xsd:string" use="required" />
+            </xsd:complexType>
+          </xsd:element>
+        </xsd:choice>
+      </xsd:complexType>
+    </xsd:element>
+  </xsd:schema>
+  <resheader name="resmimetype">
+    <value>text/microsoft-resx</value>
+  </resheader>
+  <resheader name="version">
+    <value>2.0</value>
+  </resheader>
+  <resheader name="reader">
+    <value>System.Resources.ResXResourceReader, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+  <resheader name="writer">
+    <value>System.Resources.ResXResourceWriter, System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089</value>
+  </resheader>
+</root>

ConstructionCompany/ConstructionCompanyView/Program.cs

@@ -1,7 +1,17 @@
+using ConstructionCompanyBusinessLogic.BusinessLogics;
+using ConstructionCompanyContracts.BusinessLogicContracts;
+using ConstructionCompanyContracts.StorageContracts;
+using ConstructionCompanyPsqlImplement.Implements;
+using Microsoft.Extensions.DependencyInjection;
+using Microsoft.Extensions.Logging;
+using NLog.Extensions.Logging;
+
 namespace ConstructionCompanyView
 {
     internal static class Program
     {
+        private static ServiceProvider? _serviceProvider;
+        public static ServiceProvider? ServiceProvider => _serviceProvider;
         /// <summary>
         ///  The main entry point for the application.
         /// </summary>
@@ -11,7 +21,23 @@ namespace ConstructionCompanyView
             // To customize application configuration such as set high DPI settings or default font,
             // see https://aka.ms/applicationconfiguration.
             ApplicationConfiguration.Initialize();
-            Application.Run(new Form1());
+            var services = new ServiceCollection();
+            ConfigureServices(services);
+            _serviceProvider = services.BuildServiceProvider();
+            Application.Run(_serviceProvider.GetRequiredService<FormMaterials>());
+        }
+
+        private static void ConfigureServices(ServiceCollection services)
+        {
+            services.AddLogging(option =>
+            {
+                option.SetMinimumLevel(LogLevel.Information);
+                option.AddNLog("nlogConstruction.config");
+            });
+            services.AddTransient<IMaterialStorage, MaterialStorage>();
+            services.AddTransient<IMaterialLogic, MaterialLogic>();
+            services.AddTransient<FormMaterials>();
+            services.AddTransient<FormMaterial>();
         }
     }
 }

ConstructionCompany/ConstructionCompanyView/nlogConstruction.config

@@ -0,0 +1,15 @@
+<?xml version="1.0" encoding="utf-8" ?>
+<configuration>
+	<nlog xmlns="http://www.nlog-project.org/schemas/NLog.xsd"
+        xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+        autoReload="true" internalLogLevel="Info">
+
+		<targets>
+			<target xsi:type="File" name="tofile" fileName="${basedir}/${shortdate}.log" />
+		</targets>
+
+		<rules>
+			<logger name="*" minlevel="Debug" writeTo="tofile" />
+		</rules>
+	</nlog>
+</configuration>