demo

.vs/tiron_demo/v17/DocumentLayout.backup.json

@@ -3,8 +3,8 @@
   "WorkspaceRootPath": "C:\\Users\\Profi\\Desktop\\tiron_demo\\",
   "Documents": [
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-      "RelativeMoniker": "D:0:0:{B5EE34CD-8D12-443D-98D2-8B30C47ECC47}|tiron_demo.csproj|solutionrelative:mainwindow.axaml.cs||{A6C744A8-0E4A-4FC6-886A-064283054674}"
+      "AbsoluteMoniker": "D:0:0:{B5EE34CD-8D12-443D-98D2-8B30C47ECC47}|tiron_demo.csproj|c:\\users\\profi\\desktop\\tiron_demo\\tiron_demo.csproj||{FA3CD31E-987B-443A-9B81-186104E8DAC1}|",
+      "RelativeMoniker": "D:0:0:{B5EE34CD-8D12-443D-98D2-8B30C47ECC47}|tiron_demo.csproj|solutionrelative:tiron_demo.csproj||{FA3CD31E-987B-443A-9B81-186104E8DAC1}|"
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   "DocumentGroupContainers": [
@@ -19,14 +19,14 @@
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-              "DocumentMoniker": "C:\\Users\\Profi\\Desktop\\tiron_demo\\MainWindow.axaml.cs",
-              "RelativeDocumentMoniker": "MainWindow.axaml.cs",
-              "ToolTip": "C:\\Users\\Profi\\Desktop\\tiron_demo\\MainWindow.axaml.cs",
-              "RelativeToolTip": "MainWindow.axaml.cs",
-              "ViewState": "AgIAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA==",
-              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
-              "WhenOpened": "2025-03-25T07:56:30.322Z",
+              "Title": "tiron_demo",
+              "DocumentMoniker": "C:\\Users\\Profi\\Desktop\\tiron_demo\\tiron_demo.csproj",
+              "RelativeDocumentMoniker": "tiron_demo.csproj",
+              "ToolTip": "C:\\Users\\Profi\\Desktop\\tiron_demo\\tiron_demo.csproj",
+              "RelativeToolTip": "tiron_demo.csproj",
+              "ViewState": "AgIAAAAAAAAAAAAAAAAAAAcAAAAeAAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000758|",
+              "WhenOpened": "2025-03-25T12:35:19.155Z",
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.vs/tiron_demo/v17/DocumentLayout.json

@@ -1,12 +1,37 @@
 {
   "Version": 1,
   "WorkspaceRootPath": "C:\\Users\\Profi\\Desktop\\tiron_demo\\",
-  "Documents": [],
+  "Documents": [
+    {
+      "AbsoluteMoniker": "D:0:0:{B5EE34CD-8D12-443D-98D2-8B30C47ECC47}|tiron_demo.csproj|c:\\users\\profi\\desktop\\tiron_demo\\tiron_demo.csproj||{FA3CD31E-987B-443A-9B81-186104E8DAC1}|",
+      "RelativeMoniker": "D:0:0:{B5EE34CD-8D12-443D-98D2-8B30C47ECC47}|tiron_demo.csproj|solutionrelative:tiron_demo.csproj||{FA3CD31E-987B-443A-9B81-186104E8DAC1}|"
+    }
+  ],
   "DocumentGroupContainers": [
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       "Orientation": 0,
       "VerticalTabListWidth": 256,
-      "DocumentGroups": []
+      "DocumentGroups": [
+        {
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+          "SelectedChildIndex": 0,
+          "Children": [
+            {
+              "$type": "Document",
+              "DocumentIndex": 0,
+              "Title": "tiron_demo",
+              "DocumentMoniker": "C:\\Users\\Profi\\Desktop\\tiron_demo\\tiron_demo.csproj",
+              "RelativeDocumentMoniker": "tiron_demo.csproj",
+              "ToolTip": "C:\\Users\\Profi\\Desktop\\tiron_demo\\tiron_demo.csproj",
+              "RelativeToolTip": "tiron_demo.csproj",
+              "ViewState": "AgIAAAAAAAAAAAAAAAAAAAcAAAAeAAAAAAAAAA==",
+              "Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000758|",
+              "WhenOpened": "2025-03-25T12:35:19.155Z",
+              "EditorCaption": ""
+            }
+          ]
+        }
+      ]
     }
   ]
 }

AddPartner.axaml

@@ -0,0 +1,31 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="tiron_demo.AddPartner"
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="Добавление/редактирование партнёра">
+	<Grid Margin="10" RowDefinitions="*, auto">
+		<StackPanel Spacing="10" Grid.Row="0" Name="PartnerPanel">
+			<TextBlock HorizontalAlignment="Center" FontWeight="Bold" Text="Добавление/редактирование продукта" />
+			<TextBox Watermark="Наименование" Text="{Binding Name}" />
+			<TextBox Watermark="Рейтинг" Text="{Binding Rating}" />
+			<TextBox Watermark="Адрес" Text="{Binding Address}" />
+			<TextBox Watermark="ФИО директора" Text="{Binding Director}" />
+			<TextBox Watermark="Телефон" Text="{Binding Phone}" />
+			<TextBox Watermark="E-mail" Text="{Binding Email}" />
+			<ComboBox Name="PartnerTypeComboBox" SelectedItem="{Binding TypeNavigation}">
+				<ComboBox.ItemTemplate>
+					<DataTemplate>
+						<TextBlock Text="{Binding Name}" />
+					</DataTemplate>
+				</ComboBox.ItemTemplate>
+			</ComboBox>
+		</StackPanel>
+
+		<Button Grid.Row="1" HorizontalAlignment="Left" Content="Назад" Click="Button_Click_Back" />
+		<Button Grid.Row="1" HorizontalAlignment="Right" Content="Сохранить" Click="Button_Click_Save" />
+	</Grid>
+</Window>

AddPartner.axaml.cs

@@ -0,0 +1,67 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using System.Linq;
+using tiron_demo.Context;
+using tiron_demo.Models;
+
+namespace tiron_demo;
+
+public partial class AddPartner : Window
+{
+    private short _ratingBackup;
+    private Partner _partner;
+
+    public AddPartner()
+    {
+        InitializeComponent();
+
+        _partner = new Partner();
+        _ratingBackup = 0;
+
+        PartnerTypeComboBox.ItemsSource = Helper.context.PartnerTypes;
+        PartnerPanel.DataContext = _partner;
+    }
+
+    public AddPartner(Partner partner)
+    {
+        InitializeComponent();
+
+        _partner = partner;
+        _ratingBackup = partner.Rating;
+
+        PartnerTypeComboBox.ItemsSource = Helper.context.PartnerTypes;
+        PartnerPanel.DataContext = _partner;
+    }
+
+    private void Button_Click_Back(object? sender, RoutedEventArgs args)
+    {
+        _partner.Rating = _ratingBackup;
+
+        PartnersWindow partnersWindow = new PartnersWindow();
+        partnersWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_Save(object? sender, RoutedEventArgs args)
+    {
+        if (_partner.Rating >= 0)
+        {
+            if (_partner.Id == 0)
+            {
+                Helper.context.Partners.Add(_partner);
+                Helper.context.SaveChanges();
+            }
+            else
+            {
+                Helper.context.Partners.Update(_partner);
+                Helper.context.SaveChanges();
+            }
+
+            PartnersWindow partnersWindow = new PartnersWindow();
+            partnersWindow.Show();
+            Close();
+        }
+    }
+}

AddProduct.axaml

@@ -0,0 +1,28 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="tiron_demo.AddProduct"
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="Добавление/редактирование продукта">
+  <Grid Margin="10" RowDefinitions="*, auto">
+		<StackPanel Spacing="10" Grid.Row="0" Name="ProductPanel">
+			<TextBlock HorizontalAlignment="Center" FontWeight="Bold" Text="Добавление/редактирование продукта" />
+			<TextBox Watermark="Наименование" Text="{Binding Name}" />
+			<TextBox IsEnabled="False" Watermark="Артикул" Text="{Binding Articul}" />
+			<TextBox Watermark="Минимальная стоимость для партнёра" Text="{Binding MinCost}" />
+			<ComboBox Name="ProductTypeComboBox" SelectedItem="{Binding TypeNavigation}">
+				<ComboBox.ItemTemplate>
+					<DataTemplate>
+						<TextBlock Text="{Binding Name}" />
+					</DataTemplate>
+				</ComboBox.ItemTemplate>
+			</ComboBox>
+		</StackPanel>
+	  
+	  <Button Grid.Row="1" HorizontalAlignment="Left" Content="Назад" Click="Button_Click_Back" />
+	  <Button Grid.Row="1" HorizontalAlignment="Right" Content="Сохранить" Click="Button_Click_Save" />
+	</Grid>
+</Window>

AddProduct.axaml.cs

@@ -0,0 +1,86 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using System;
+using System.Linq;
+using tiron_demo.Context;
+using tiron_demo.Models;
+
+namespace tiron_demo;
+
+public partial class AddProduct : Window
+{
+    private float _minCostBackup;
+    private Product _product;
+
+    public AddProduct()
+    {
+        InitializeComponent();
+
+        _product = new Product();
+        _product.Articul = GenerateArticul();
+        _minCostBackup = 0;
+
+        ProductTypeComboBox.ItemsSource = Helper.context.ProductTypes;
+        ProductPanel.DataContext = _product;
+    }
+
+    public AddProduct(Product product)
+    {
+        InitializeComponent();
+
+        _product = product;
+        _minCostBackup = product.MinCost;
+
+        ProductTypeComboBox.ItemsSource = Helper.context.ProductTypes;
+        ProductPanel.DataContext = _product;
+    }
+
+    private string GenerateArticul()
+    {
+        Random rnd = new Random();
+        string articul = "";
+        for (int i = 0; i < 7; i++)
+        {
+            articul += rnd.Next(10);
+        }
+
+        if (Helper.context.Products.Where(x => x.Articul == articul).Count() > 0)
+        {
+            articul = GenerateArticul();
+        }
+
+        return articul;
+    }
+
+    private void Button_Click_Back(object? sender, RoutedEventArgs args)
+    {
+        _product.MinCost = _minCostBackup;
+
+        ProductsWindow productsWindow = new ProductsWindow();
+        productsWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_Save(object? sender, RoutedEventArgs args)
+    {
+        if (_product.MinCost >= 0)
+        {
+            if (_product.Id == 0)
+            {
+                Helper.context.Products.Add(_product);
+                Helper.context.SaveChanges();
+            }
+            else
+            {
+                Helper.context.Products.Update(_product);
+                Helper.context.SaveChanges();
+            }
+
+            ProductsWindow productsWindow = new ProductsWindow();
+            productsWindow.Show();
+            Close();
+        }
+    }
+}

Context/Helper.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+using System.Text;
+using System.Threading.Tasks;
+
+namespace tiron_demo.Context
+{
+    public class Helper
+    {
+        public static User20Context context = new User20Context();
+    }
+}

Context/User20Context.cs

@@ -0,0 +1,222 @@
+using System;
+using System.Collections.Generic;
+using Microsoft.EntityFrameworkCore;
+using tiron_demo.Models;
+
+namespace tiron_demo.Context;
+
+public partial class User20Context : DbContext
+{
+    public User20Context()
+    {
+    }
+
+    public User20Context(DbContextOptions<User20Context> options)
+        : base(options)
+    {
+    }
+
+    public virtual DbSet<Material> Materials { get; set; }
+
+    public virtual DbSet<MaterialType> MaterialTypes { get; set; }
+
+    public virtual DbSet<Partner> Partners { get; set; }
+
+    public virtual DbSet<PartnerProduct> PartnerProducts { get; set; }
+
+    public virtual DbSet<PartnerType> PartnerTypes { get; set; }
+
+    public virtual DbSet<Product> Products { get; set; }
+
+    public virtual DbSet<ProductType> ProductTypes { get; set; }
+
+    public virtual DbSet<ProductsMinCostHistory> ProductsMinCostHistories { get; set; }
+
+    protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+#warning To protect potentially sensitive information in your connection string, you should move it out of source code. You can avoid scaffolding the connection string by using the Name= syntax to read it from configuration - see https://go.microsoft.com/fwlink/?linkid=2131148. For more guidance on storing connection strings, see https://go.microsoft.com/fwlink/?LinkId=723263.
+        => optionsBuilder.UseNpgsql("Host=45.67.56.214;Port=5456;Database=user20;Username=user20;Password=uFTJmxd5");
+
+    protected override void OnModelCreating(ModelBuilder modelBuilder)
+    {
+        modelBuilder.Entity<Material>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("materials_pk");
+
+            entity.ToTable("materials");
+
+            entity.HasIndex(e => e.Name, "materials_unique").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.AmountPerPackage).HasColumnName("amount_per_package");
+            entity.Property(e => e.Cost).HasColumnName("cost");
+            entity.Property(e => e.MeasureUnit)
+                .HasColumnType("character varying")
+                .HasColumnName("measure_unit");
+            entity.Property(e => e.MinAmount)
+                .HasDefaultValue(0)
+                .HasColumnName("min_amount");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+            entity.Property(e => e.StorageAmount)
+                .HasDefaultValue(0)
+                .HasColumnName("storage_amount");
+            entity.Property(e => e.Type).HasColumnName("type");
+
+            entity.HasOne(d => d.TypeNavigation).WithMany(p => p.Materials)
+                .HasForeignKey(d => d.Type)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("materials_material_type_fk");
+        });
+
+        modelBuilder.Entity<MaterialType>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("material_type_pk");
+
+            entity.ToTable("material_type");
+
+            entity.HasIndex(e => e.Name, "material_type_unique").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.DefectRate).HasColumnName("defect_rate");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<Partner>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("partners_pk");
+
+            entity.ToTable("partners");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Address)
+                .HasColumnType("character varying")
+                .HasColumnName("address");
+            entity.Property(e => e.Director)
+                .HasColumnType("character varying")
+                .HasColumnName("director");
+            entity.Property(e => e.Email)
+                .HasColumnType("character varying")
+                .HasColumnName("email");
+            entity.Property(e => e.Inn)
+                .HasColumnType("character varying")
+                .HasColumnName("inn");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+            entity.Property(e => e.Phone)
+                .HasColumnType("character varying")
+                .HasColumnName("phone");
+            entity.Property(e => e.Rating)
+                .HasDefaultValue((short)0)
+                .HasColumnName("rating");
+            entity.Property(e => e.Type).HasColumnName("type");
+
+            entity.HasOne(d => d.TypeNavigation).WithMany(p => p.Partners)
+                .HasForeignKey(d => d.Type)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("partners_partner_type_fk");
+        });
+
+        modelBuilder.Entity<PartnerProduct>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("partner_products_pk");
+
+            entity.ToTable("partner_products");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Amount)
+                .HasDefaultValue(0)
+                .HasColumnName("amount");
+            entity.Property(e => e.Partner).HasColumnName("partner");
+            entity.Property(e => e.Product).HasColumnName("product");
+            entity.Property(e => e.SellDate).HasColumnName("sell_date");
+
+            entity.HasOne(d => d.PartnerNavigation).WithMany(p => p.PartnerProducts)
+                .HasForeignKey(d => d.Partner)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("partner_products_partners_fk");
+
+            entity.HasOne(d => d.ProductNavigation).WithMany(p => p.PartnerProducts)
+                .HasForeignKey(d => d.Product)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("partner_products_products_fk");
+        });
+
+        modelBuilder.Entity<PartnerType>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("partner_type_pk");
+
+            entity.ToTable("partner_type");
+
+            entity.HasIndex(e => e.Name, "partner_type_unique").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<Product>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("products_pk");
+
+            entity.ToTable("products");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Articul)
+                .HasColumnType("character varying")
+                .HasColumnName("articul");
+            entity.Property(e => e.MinCost).HasColumnName("min_cost");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+            entity.Property(e => e.Type).HasColumnName("type");
+
+            entity.HasOne(d => d.TypeNavigation).WithMany(p => p.Products)
+                .HasForeignKey(d => d.Type)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("products_product_type_fk");
+        });
+
+        modelBuilder.Entity<ProductType>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("product_type_pk");
+
+            entity.ToTable("product_type");
+
+            entity.HasIndex(e => e.Name, "product_type_unique").IsUnique();
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.K).HasColumnName("k");
+            entity.Property(e => e.Name)
+                .HasColumnType("character varying")
+                .HasColumnName("name");
+        });
+
+        modelBuilder.Entity<ProductsMinCostHistory>(entity =>
+        {
+            entity.HasKey(e => e.Id).HasName("products_min_cost_history_pk");
+
+            entity.ToTable("products_min_cost_history");
+
+            entity.Property(e => e.Id).HasColumnName("id");
+            entity.Property(e => e.Date)
+                .HasColumnType("timestamp without time zone")
+                .HasColumnName("date");
+            entity.Property(e => e.MinCost).HasColumnName("min_cost");
+            entity.Property(e => e.Product).HasColumnName("product");
+
+            entity.HasOne(d => d.ProductNavigation).WithMany(p => p.ProductsMinCostHistories)
+                .HasForeignKey(d => d.Product)
+                .OnDelete(DeleteBehavior.ClientSetNull)
+                .HasConstraintName("products_min_cost_history_products_fk");
+        });
+
+        OnModelCreatingPartial(modelBuilder);
+    }
+
+    partial void OnModelCreatingPartial(ModelBuilder modelBuilder);
+}

History.axaml

@@ -0,0 +1,37 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="tiron_demo.History"
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="История реалицазии продукции">
+	<Grid Margin="10" RowDefinitions="*, auto">
+		<ListBox Grid.Row="0" Name="HistoryBox" Margin="10">
+			<ListBox.Styles>
+				<Style Selector="ListBoxItem:pointerover /template/ ContentPresenter">
+					<Setter Property="Background" Value="#F4E8D3"/>
+				</Style>
+				<Style Selector="ListBoxItem:selected /template/ ContentPresenter">
+					<Setter Property="Background" Value="#67BA80"/>
+				</Style>
+			</ListBox.Styles>
+			<ListBox.ItemTemplate>
+				<DataTemplate>
+					<Border Padding="10" BorderBrush="Black" BorderThickness="1">
+						<StackPanel>
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding PartnerNavigation.Name}" HorizontalAlignment="Right" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding ProductNavigation.Name}" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Amount}" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding SellDate}" />
+						</StackPanel>
+					</Border>
+				</DataTemplate>
+			</ListBox.ItemTemplate>
+		</ListBox>
+
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Left" Content="Назад" Click="Button_Click_Back" />
+	</Grid>
+</Window>

History.axaml.cs

@@ -0,0 +1,71 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using Microsoft.EntityFrameworkCore;
+using System.Linq;
+using tiron_demo.Context;
+using tiron_demo.Models;
+
+namespace tiron_demo;
+
+public partial class History : Window
+{
+    private short _previousWindow;
+
+    public History()
+    {
+        InitializeComponent();
+
+        _previousWindow = 0;
+
+        HistoryBox.ItemsSource = Helper.context.PartnerProducts.Include(x => x.PartnerNavigation).Include(x => x.ProductNavigation);
+    }
+
+    public History(Window previousWindow, int partnerId, int productId)
+    {
+        InitializeComponent();
+
+        if (previousWindow is ProductsWindow)
+        {
+            _previousWindow = 1;
+        } else if (previousWindow is PartnersWindow)
+        {
+            _previousWindow = 2;
+        }
+
+        if (productId != 0)
+        {
+            var source = Helper.context.PartnerProducts.Where(x => x.Product == productId);
+            if (partnerId != 0)
+            {
+                source = source.Where(x => x.Partner == partnerId);
+            }
+            HistoryBox.ItemsSource = source.Include(x => x.PartnerNavigation).Include(x => x.ProductNavigation);
+        } else if (partnerId != 0)
+        {
+            HistoryBox.ItemsSource = Helper.context.PartnerProducts.Where(x => x.Partner == partnerId).Include(x => x.PartnerNavigation).Include(x => x.ProductNavigation);
+        } else
+        {
+            HistoryBox.ItemsSource = Helper.context.PartnerProducts.Include(x => x.PartnerNavigation).Include(x => x.ProductNavigation);
+        }
+    }
+
+    private void Button_Click_Back(object? sender, RoutedEventArgs args)
+    {
+        if (_previousWindow == 0)
+        {
+            MainWindow mainWindow = new MainWindow();
+            mainWindow.Show();
+        } else if (_previousWindow == 1)
+        {
+            ProductsWindow productsWindow = new ProductsWindow();
+            productsWindow.Show();
+        } else if (_previousWindow == 2)
+        {
+            PartnersWindow partnersWindow = new PartnersWindow();
+            partnersWindow.Show();
+        }
+        Close();
+    }
+}

MainWindow.axaml

@@ -4,6 +4,16 @@
         xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
         mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
         x:Class="tiron_demo.MainWindow"
-        Title="tiron_demo">
-    Welcome to Avalonia!
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="Главная страница">
+	<Grid Margin="10" RowDefinitions="*, auto">
+		<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="Главная страница" HorizontalAlignment="Center" FontWeight="Bold" />
+		
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Right" Content="Продукты" Click="Button_Click_Products" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Center" Content="История" Click="Button_Click_History" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Left" Content="Партнёры" Click="Button_Click_Partners" />
+	</Grid>
 </Window>

MainWindow.axaml.cs

@@ -1,4 +1,8 @@
 using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Microsoft.EntityFrameworkCore;
+using tiron_demo.Context;
+using tiron_demo.Models;
 
 namespace tiron_demo;
 
@@ -8,4 +12,25 @@ public partial class MainWindow : Window
     {
         InitializeComponent();
     }
+
+    private void Button_Click_Products(object? sender, RoutedEventArgs args)
+    {
+        ProductsWindow productsWindow = new ProductsWindow();
+        productsWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_Partners(object? sender, RoutedEventArgs args)
+    {
+        PartnersWindow partnersWindow = new PartnersWindow();
+        partnersWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_History(object? sender, RoutedEventArgs args)
+    {
+        History history = new History();
+        history.Show();
+        Close();
+    }
 }

Models/Material.cs

@@ -0,0 +1,25 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class Material
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public int Type { get; set; }
+
+    public int AmountPerPackage { get; set; }
+
+    public string MeasureUnit { get; set; } = null!;
+
+    public float Cost { get; set; }
+
+    public int StorageAmount { get; set; }
+
+    public int MinAmount { get; set; }
+
+    public virtual MaterialType TypeNavigation { get; set; } = null!;
+}

Models/MaterialType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class MaterialType
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public float DefectRate { get; set; }
+
+    public virtual ICollection<Material> Materials { get; set; } = new List<Material>();
+}

Models/Partner.cs

@@ -0,0 +1,51 @@
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace tiron_demo.Models;
+
+public partial class Partner
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public string Director { get; set; } = null!;
+
+    public string? Email { get; set; }
+
+    public string? Phone { get; set; }
+
+    public string? Address { get; set; }
+
+    public string? Inn { get; set; }
+
+    public short Rating { get; set; }
+
+    public int Type { get; set; }
+
+    public int Discount => GetDiscount();
+
+    public virtual ICollection<PartnerProduct> PartnerProducts { get; set; } = new List<PartnerProduct>();
+
+    public virtual PartnerType TypeNavigation { get; set; } = null!;
+
+    private int GetDiscount()
+    {
+        int sum = PartnerProducts.Select(x => x.Amount).Sum();
+
+        if (sum < 10000)
+        {
+            return 0;
+        } else if (sum < 50000)
+        {
+            return 5;
+        } else if (sum < 300000)
+        {
+            return 10;
+        } else
+        {
+            return 15;
+        }
+    }
+}

Models/PartnerProduct.cs

@@ -0,0 +1,21 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class PartnerProduct
+{
+    public int Id { get; set; }
+
+    public int Product { get; set; }
+
+    public int Partner { get; set; }
+
+    public int Amount { get; set; }
+
+    public DateOnly? SellDate { get; set; }
+
+    public virtual Partner PartnerNavigation { get; set; } = null!;
+
+    public virtual Product ProductNavigation { get; set; } = null!;
+}

Models/PartnerType.cs

@@ -0,0 +1,13 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class PartnerType
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public virtual ICollection<Partner> Partners { get; set; } = new List<Partner>();
+}

Models/Product.cs

@@ -0,0 +1,43 @@
+using Avalonia.Media;
+using System;
+using System.Collections.Generic;
+using System.Linq;
+
+namespace tiron_demo.Models;
+
+public partial class Product
+{
+    public int Id { get; set; }
+
+    public int Type { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public string Articul { get; set; } = null!;
+
+    public float MinCost { get; set; }
+
+    public SolidColorBrush ProductBackground => GetProductBackground();
+
+    public virtual ICollection<PartnerProduct> PartnerProducts { get; set; } = new List<PartnerProduct>();
+
+    public virtual ICollection<ProductsMinCostHistory> ProductsMinCostHistories { get; set; } = new List<ProductsMinCostHistory>();
+
+    public virtual ProductType TypeNavigation { get; set; } = null!;
+
+    private SolidColorBrush GetProductBackground()
+    {
+        int sum = PartnerProducts.Where(x => x.SellDate.Value.Year == 2024).Sum(x => x.Amount);
+
+        if (sum < 10000)
+        {
+            return SolidColorBrush.Parse("Red");
+        } else if (sum < 60000)
+        {
+            return SolidColorBrush.Parse("Orange");
+        } else
+        {
+            return SolidColorBrush.Parse("Green");
+        }
+    }
+}

Models/ProductType.cs

@@ -0,0 +1,15 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class ProductType
+{
+    public int Id { get; set; }
+
+    public string Name { get; set; } = null!;
+
+    public float K { get; set; }
+
+    public virtual ICollection<Product> Products { get; set; } = new List<Product>();
+}

Models/ProductsMinCostHistory.cs

@@ -0,0 +1,17 @@
+using System;
+using System.Collections.Generic;
+
+namespace tiron_demo.Models;
+
+public partial class ProductsMinCostHistory
+{
+    public int Id { get; set; }
+
+    public DateTime Date { get; set; }
+
+    public int MinCost { get; set; }
+
+    public int Product { get; set; }
+
+    public virtual Product ProductNavigation { get; set; } = null!;
+}

PartnersWindow.axaml

@@ -0,0 +1,54 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="tiron_demo.PartnersWindow"
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="Партнёры">
+	<Grid Margin="10" RowDefinitions="*, auto">
+		<ListBox Grid.Row="0" Name="Partners" Margin="10" DoubleTapped="ListBox_DoubleTapped">
+			<ListBox.Styles>
+				<Style Selector="ListBoxItem:pointerover /template/ ContentPresenter">
+					<Setter Property="Background" Value="#F4E8D3"/>
+				</Style>
+				<Style Selector="ListBoxItem:selected /template/ ContentPresenter">
+					<Setter Property="Background" Value="#67BA80"/>
+				</Style>
+			</ListBox.Styles>
+			<ListBox.ItemTemplate>
+				<DataTemplate>
+					<Border Padding="10" BorderBrush="Black" BorderThickness="1">
+						<StackPanel>
+							<Grid ColumnDefinitions="*, auto">
+								<TextBlock FontFamily="fonts:SystemFonts#Segoe UI">
+									<TextBlock.Text>
+										<MultiBinding StringFormat="{}{0} | {1}">
+											<Binding Path="TypeNavigation.Name" />
+											<Binding Path="Name" />
+										</MultiBinding>
+									</TextBlock.Text>
+								</TextBlock>
+								<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Grid.Column="1">
+									<TextBlock.Text>
+										<Binding Path="Discount" StringFormat="{}{0}%" />
+									</TextBlock.Text>
+								</TextBlock>
+							</Grid>
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Director}" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Phone}" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Rating}" />
+						</StackPanel>
+					</Border>
+				</DataTemplate>
+			</ListBox.ItemTemplate>
+		</ListBox>
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Right" Content="Добавить" Click="Button_Click_Add" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Center" Content="История" Click="Button_Click_History" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Left" Content="Назад" Click="Button_Click_Back" />
+	</Grid>
+</Window>

PartnersWindow.axaml.cs

@@ -0,0 +1,56 @@
+using Avalonia;
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Avalonia.Markup.Xaml;
+using Microsoft.EntityFrameworkCore;
+using tiron_demo.Context;
+using tiron_demo.Models;
+
+namespace tiron_demo;
+
+public partial class PartnersWindow : Window
+{
+    public PartnersWindow()
+    {
+        InitializeComponent();
+
+        Partners.ItemsSource = Helper.context.Partners.Include(x => x.TypeNavigation).Include(x => x.PartnerProducts);
+    }
+
+    private void Button_Click_Add(object? sender, RoutedEventArgs args)
+    {
+        AddPartner partnerWindow = new AddPartner();
+        partnerWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_Back(object? sender, RoutedEventArgs args)
+    {
+        MainWindow mainWindow = new MainWindow();
+        mainWindow.Show();
+        Close();
+    }
+
+    private void ListBox_DoubleTapped(object? sender, RoutedEventArgs args)
+    {
+        var partner = Partners.SelectedItem as Partner;
+
+        if (partner != null)
+        {
+            AddPartner partnerWindow = new AddPartner(partner);
+            partnerWindow.Show();
+            Close();
+        }
+    }
+
+    private void Button_Click_History(object? sender, RoutedEventArgs args)
+    {
+        if (Partners.SelectedItem != null)
+        {
+            Partner partner = Partners.SelectedItem as Partner;
+            History history = new History(this, partner.Id, 0);
+            history.Show();
+            Close();
+        }
+    }
+}

ProductsWindow.axaml

@@ -0,0 +1,39 @@
+<Window xmlns="https://github.com/avaloniaui"
+        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
+        xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
+        xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
+        mc:Ignorable="d" d:DesignWidth="800" d:DesignHeight="450"
+        x:Class="tiron_demo.ProductsWindow"
+		WindowStartupLocation="CenterScreen"
+		Icon="avares://tiron_demo/Resources/icon.ico"
+        Title="Продукты">
+	<Grid Margin="10" RowDefinitions="*, auto">
+		<ListBox Grid.Row="0" Name="Products" Margin="10" DoubleTapped="ListBox_DoubleTapped">
+			<ListBox.Styles>
+				<Style Selector="ListBoxItem:pointerover /template/ ContentPresenter">
+					<Setter Property="Background" Value="#F4E8D3"/>
+				</Style>
+				<Style Selector="ListBoxItem:selected /template/ ContentPresenter">
+					<Setter Property="Background" Value="#67BA80"/>
+				</Style>
+			</ListBox.Styles>
+			<ListBox.ItemTemplate>
+				<DataTemplate>
+					<Border Padding="10" BorderBrush="Black" BorderThickness="1" Background="{Binding ProductBackground}">
+						<StackPanel>
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Articul}" HorizontalAlignment="Right" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding Name}" />
+							<TextBlock FontFamily="fonts:SystemFonts#Segoe UI" Text="{Binding TypeNavigation.Name}" />
+						</StackPanel>
+					</Border>
+				</DataTemplate>
+			</ListBox.ItemTemplate>
+		</ListBox>
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Right" Content="Добавить" Click="Button_Click_Add" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Center" Content="История" Click="Button_Click_History" />
+
+		<Button FontFamily="fonts:SystemFonts#Segoe UI" Margin="10" Grid.Row="1" HorizontalAlignment="Left" Content="Назад" Click="Button_Click_Back" />
+	</Grid>
+</Window>

ProductsWindow.axaml.cs

@@ -0,0 +1,54 @@
+using Avalonia.Controls;
+using Avalonia.Interactivity;
+using Microsoft.EntityFrameworkCore;
+using tiron_demo.Context;
+using tiron_demo.Models;
+
+namespace tiron_demo;
+
+public partial class ProductsWindow : Window
+{
+    public ProductsWindow()
+    {
+        InitializeComponent();
+
+        Products.ItemsSource = Helper.context.Products.Include(x => x.TypeNavigation).Include(x => x.PartnerProducts);
+    }
+
+    private void Button_Click_Add(object? sender, RoutedEventArgs args)
+    {
+        AddProduct productWindow = new AddProduct();
+        productWindow.Show();
+        Close();
+    }
+
+    private void Button_Click_Back(object? sender, RoutedEventArgs args)
+    {
+        MainWindow mainWindow = new MainWindow();
+        mainWindow.Show();
+        Close();
+    }
+
+    private void ListBox_DoubleTapped(object? sender, RoutedEventArgs args)
+    {
+        var product = Products.SelectedItem as Product;
+
+        if (product != null)
+        {
+            AddProduct productWindow = new AddProduct(product);
+            productWindow.Show();
+            Close();
+        }
+    }
+
+    private void Button_Click_History(object? sender, RoutedEventArgs args)
+    {
+        if (Products.SelectedItem != null)
+        {
+            Product product = Products.SelectedItem as Product;
+            History history = new History(this, 0, product.Id);
+            history.Show();
+            Close();
+        }
+    }
+}

UpdateContextAndModels.bat

@@ -0,0 +1 @@
+dotnet-ef dbcontext scaffold "Host=45.67.56.214;Port=5456;Database=user20;Username=user20;Password=uFTJmxd5" Npgsql.EntityFrameworkCore.PostgreSQL --schema public --context-dir Context --output-dir Models -f