lab3 full

Pizzeria/Pizzeria.sln

@@ -11,7 +11,11 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PizzeriaContracts", "Pizzer
 EndProject
 Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PizzeriaBusinessLogic", "PizzeriaBusinessLogic\PizzeriaBusinessLogic.csproj", "{B55806ED-5FDE-4A9F-B500-1DFBE8E50491}"
 EndProject
-Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PizzeriaListImplement", "PizzeriaListImplement\PizzeriaListImplement.csproj", "{138A775B-55CA-4120-918F-6093C0B2B241}"
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PizzeriaListImplement", "PizzeriaListImplement\PizzeriaListImplement.csproj", "{138A775B-55CA-4120-918F-6093C0B2B241}"
+EndProject
+Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "PizzeriaFileImplement", "PizzeriaShopFileImplement\PizzeriaFileImplement.csproj", "{44B31B6F-2852-454B-9E7D-E965C9A348ED}"
+EndProject
+Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "PizzeriaDatabaseImplement", "PizzeriaDatabaseImplement\PizzeriaDatabaseImplement.csproj", "{37411F99-74EC-476C-BE13-D20015ED52B2}"
 EndProject
 Global
 	GlobalSection(SolutionConfigurationPlatforms) = preSolution
@@ -39,6 +43,14 @@ Global
 		{138A775B-55CA-4120-918F-6093C0B2B241}.Debug|Any CPU.Build.0 = Debug|Any CPU
 		{138A775B-55CA-4120-918F-6093C0B2B241}.Release|Any CPU.ActiveCfg = Release|Any CPU
 		{138A775B-55CA-4120-918F-6093C0B2B241}.Release|Any CPU.Build.0 = Release|Any CPU
+		{44B31B6F-2852-454B-9E7D-E965C9A348ED}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{44B31B6F-2852-454B-9E7D-E965C9A348ED}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{44B31B6F-2852-454B-9E7D-E965C9A348ED}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{44B31B6F-2852-454B-9E7D-E965C9A348ED}.Release|Any CPU.Build.0 = Release|Any CPU
+		{37411F99-74EC-476C-BE13-D20015ED52B2}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
+		{37411F99-74EC-476C-BE13-D20015ED52B2}.Debug|Any CPU.Build.0 = Debug|Any CPU
+		{37411F99-74EC-476C-BE13-D20015ED52B2}.Release|Any CPU.ActiveCfg = Release|Any CPU
+		{37411F99-74EC-476C-BE13-D20015ED52B2}.Release|Any CPU.Build.0 = Release|Any CPU
 	EndGlobalSection
 	GlobalSection(SolutionProperties) = preSolution
 		HideSolutionNode = FALSE

Pizzeria/Pizzeria/FormMain.Designer.cs

@@ -42,6 +42,7 @@
             this.изделияToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.магазиныToolStripMenuItem = new System.Windows.Forms.ToolStripMenuItem();
             this.button6 = new System.Windows.Forms.Button();
+            this.buttonSell = new System.Windows.Forms.Button();
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
             this.menuStrip1.SuspendLayout();
             this.SuspendLayout();
@@ -174,11 +175,23 @@
             this.button6.UseVisualStyleBackColor = true;
             this.button6.Click += new System.EventHandler(this.ButtonRestore_Click);
             // 
+            // buttonSell
+            // 
+            this.buttonSell.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Top | System.Windows.Forms.AnchorStyles.Right)));
+            this.buttonSell.Location = new System.Drawing.Point(987, 328);
+            this.buttonSell.Name = "buttonSell";
+            this.buttonSell.Size = new System.Drawing.Size(209, 29);
+            this.buttonSell.TabIndex = 13;
+            this.buttonSell.Text = "Продать";
+            this.buttonSell.UseVisualStyleBackColor = true;
+            this.buttonSell.Click += new System.EventHandler(this.ButtonSell_Click);
+            // 
             // FormMain
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
             this.ClientSize = new System.Drawing.Size(1233, 439);
+            this.Controls.Add(this.buttonSell);
             this.Controls.Add(this.button6);
             this.Controls.Add(this.menuStrip1);
             this.Controls.Add(this.button3);
@@ -214,5 +227,6 @@
         private ToolStripMenuItem изделияToolStripMenuItem;
         private ToolStripMenuItem магазиныToolStripMenuItem;
         private Button button6;
+        private Button buttonSell;
     }
 }

Pizzeria/Pizzeria/FormMain.cs

@@ -81,7 +81,7 @@ namespace Pizzeria
                 Sum = double.Parse(dataGridView.SelectedRows[0].Cells["Sum"].Value.ToString()),
                 Status = Enum.Parse<OrderStatus>(dataGridView.SelectedRows[0].Cells["Status"].Value.ToString()),
                 PizzaId = Convert.ToInt32(dataGridView.SelectedRows[0].Cells["PizzaId"].Value.ToString()),
-                DateCreate = DateTime.Parse(dataGridView.SelectedRows[0].Cells["DateCreate"].Value.ToString()),
+                DateCreate = DateTime.SpecifyKind(DateTime.Parse(dataGridView.SelectedRows[0].Cells["DateCreate"].Value.ToString()), DateTimeKind.Utc),
             };
         }
         private void ButtonTakeOrderInWork_Click(object sender, EventArgs e)
@@ -159,6 +159,15 @@ namespace Pizzeria
             LoadData();
         }
 
+        private void ButtonSell_Click(object sender, EventArgs e)
+        {
+            var service = Program.ServiceProvider?.GetService(typeof(FormSellPizza));
+            if (service is FormSellPizza form)
+            {
+                form.ShowDialog();
+            }
+        }
+
         private void ButtonRestore_Click(object sender, EventArgs e)
         {
             var service = Program.ServiceProvider?.GetService(typeof(FormShopPizza));

Pizzeria/Pizzeria/FormPizzaComponent.Designer.cs

@@ -28,84 +28,83 @@
         /// </summary>
         private void InitializeComponent()
         {
-            this.buttonCancel = new System.Windows.Forms.Button();
-            this.buttonSave = new System.Windows.Forms.Button();
-            this.textBoxCount = new System.Windows.Forms.TextBox();
-            this.label2 = new System.Windows.Forms.Label();
-            this.label1 = new System.Windows.Forms.Label();
-            this.comboBoxComponent = new System.Windows.Forms.ComboBox();
-            this.SuspendLayout();
+            buttonCancel = new Button();
+            buttonSave = new Button();
+            textBoxCount = new TextBox();
+            label2 = new Label();
+            label1 = new Label();
+            comboBoxComponent = new ComboBox();
+            SuspendLayout();
             // 
             // buttonCancel
             // 
-            this.buttonCancel.Location = new System.Drawing.Point(249, 101);
-            this.buttonCancel.Name = "buttonCancel";
-            this.buttonCancel.Size = new System.Drawing.Size(94, 29);
-            this.buttonCancel.TabIndex = 11;
-            this.buttonCancel.Text = "Отмена";
-            this.buttonCancel.UseVisualStyleBackColor = true;
-            this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
+            buttonCancel.Location = new Point(249, 101);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 11;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            buttonCancel.Click += ButtonCancel_Click;
             // 
             // buttonSave
             // 
-            this.buttonSave.Location = new System.Drawing.Point(135, 101);
-            this.buttonSave.Name = "buttonSave";
-            this.buttonSave.Size = new System.Drawing.Size(94, 29);
-            this.buttonSave.TabIndex = 10;
-            this.buttonSave.Text = "Сохранить";
-            this.buttonSave.UseVisualStyleBackColor = true;
-            this.buttonSave.Click += new System.EventHandler(this.ButtonSave_Click);
+            buttonSave.Location = new Point(135, 101);
+            buttonSave.Name = "buttonSave";
+            buttonSave.Size = new Size(94, 29);
+            buttonSave.TabIndex = 10;
+            buttonSave.Text = "Сохранить";
+            buttonSave.UseVisualStyleBackColor = true;
+            buttonSave.Click += ButtonSave_Click;
             // 
             // textBoxCount
             // 
-            this.textBoxCount.Location = new System.Drawing.Point(118, 59);
-            this.textBoxCount.Name = "textBoxCount";
-            this.textBoxCount.Size = new System.Drawing.Size(225, 27);
-            this.textBoxCount.TabIndex = 9;
+            textBoxCount.Location = new Point(118, 59);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(225, 27);
+            textBoxCount.TabIndex = 9;
             // 
             // label2
             // 
-            this.label2.AutoSize = true;
-            this.label2.Location = new System.Drawing.Point(23, 66);
-            this.label2.Name = "label2";
-            this.label2.Size = new System.Drawing.Size(93, 20);
-            this.label2.TabIndex = 7;
-            this.label2.Text = "Количество:";
+            label2.AutoSize = true;
+            label2.Location = new Point(23, 66);
+            label2.Name = "label2";
+            label2.Size = new Size(93, 20);
+            label2.TabIndex = 7;
+            label2.Text = "Количество:";
             // 
             // label1
             // 
-            this.label1.AutoSize = true;
-            this.label1.Location = new System.Drawing.Point(23, 33);
-            this.label1.Name = "label1";
-            this.label1.Size = new System.Drawing.Size(91, 20);
-            this.label1.TabIndex = 6;
-            this.label1.Text = "Компонент:";
+            label1.AutoSize = true;
+            label1.Location = new Point(23, 33);
+            label1.Name = "label1";
+            label1.Size = new Size(91, 20);
+            label1.TabIndex = 6;
+            label1.Text = "Компонент:";
             // 
             // comboBoxComponent
             // 
-            this.comboBoxComponent.DropDownStyle = System.Windows.Forms.ComboBoxStyle.DropDownList;
-            this.comboBoxComponent.FormattingEnabled = true;
-            this.comboBoxComponent.Location = new System.Drawing.Point(120, 25);
-            this.comboBoxComponent.Name = "comboBoxComponent";
-            this.comboBoxComponent.Size = new System.Drawing.Size(224, 28);
-            this.comboBoxComponent.TabIndex = 12;
+            comboBoxComponent.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxComponent.FormattingEnabled = true;
+            comboBoxComponent.Location = new Point(120, 25);
+            comboBoxComponent.Name = "comboBoxComponent";
+            comboBoxComponent.Size = new Size(224, 28);
+            comboBoxComponent.TabIndex = 12;
             // 
             // FormPizzaComponent
             // 
-            this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
-            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(370, 153);
-            this.Controls.Add(this.comboBoxComponent);
-            this.Controls.Add(this.buttonCancel);
-            this.Controls.Add(this.buttonSave);
-            this.Controls.Add(this.textBoxCount);
-            this.Controls.Add(this.label2);
-            this.Controls.Add(this.label1);
-            this.Name = "FormPizzaComponent";
-            this.Text = "Компонент пиццы";
-            this.ResumeLayout(false);
-            this.PerformLayout();
-
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(370, 153);
+            Controls.Add(comboBoxComponent);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSave);
+            Controls.Add(textBoxCount);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormPizzaComponent";
+            Text = "Компонент пиццы";
+            ResumeLayout(false);
+            PerformLayout();
         }
 
         #endregion

Pizzeria/Pizzeria/FormSellPizza.Designer.cs

@@ -0,0 +1,118 @@
+namespace Pizzeria
+{
+    partial class FormSellPizza
+    {
+        /// <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()
+        {
+            comboBoxPizza = new ComboBox();
+            buttonCancel = new Button();
+            buttonSell = new Button();
+            textBoxCount = new TextBox();
+            label2 = new Label();
+            label1 = new Label();
+            SuspendLayout();
+            // 
+            // comboBoxPizza
+            // 
+            comboBoxPizza.DropDownStyle = ComboBoxStyle.DropDownList;
+            comboBoxPizza.FormattingEnabled = true;
+            comboBoxPizza.Location = new Point(113, 25);
+            comboBoxPizza.Name = "comboBoxPizza";
+            comboBoxPizza.Size = new Size(224, 28);
+            comboBoxPizza.TabIndex = 18;
+            // 
+            // buttonCancel
+            // 
+            buttonCancel.Location = new Point(242, 101);
+            buttonCancel.Name = "buttonCancel";
+            buttonCancel.Size = new Size(94, 29);
+            buttonCancel.TabIndex = 17;
+            buttonCancel.Text = "Отмена";
+            buttonCancel.UseVisualStyleBackColor = true;
+            // 
+            // buttonSell
+            // 
+            buttonSell.Location = new Point(128, 101);
+            buttonSell.Name = "buttonSell";
+            buttonSell.Size = new Size(94, 29);
+            buttonSell.TabIndex = 16;
+            buttonSell.Text = "Продать";
+            buttonSell.UseVisualStyleBackColor = true;
+            buttonSell.Click += buttonSell_Click;
+            // 
+            // textBoxCount
+            // 
+            textBoxCount.Location = new Point(111, 59);
+            textBoxCount.Name = "textBoxCount";
+            textBoxCount.Size = new Size(225, 27);
+            textBoxCount.TabIndex = 15;
+            // 
+            // label2
+            // 
+            label2.AutoSize = true;
+            label2.Location = new Point(16, 66);
+            label2.Name = "label2";
+            label2.Size = new Size(93, 20);
+            label2.TabIndex = 14;
+            label2.Text = "Количество:";
+            // 
+            // label1
+            // 
+            label1.AutoSize = true;
+            label1.Location = new Point(16, 33);
+            label1.Name = "label1";
+            label1.Size = new Size(55, 20);
+            label1.TabIndex = 13;
+            label1.Text = "Пицца";
+            // 
+            // FormSellPizza
+            // 
+            AutoScaleDimensions = new SizeF(8F, 20F);
+            AutoScaleMode = AutoScaleMode.Font;
+            ClientSize = new Size(352, 145);
+            Controls.Add(comboBoxPizza);
+            Controls.Add(buttonCancel);
+            Controls.Add(buttonSell);
+            Controls.Add(textBoxCount);
+            Controls.Add(label2);
+            Controls.Add(label1);
+            Name = "FormSellPizza";
+            Text = "Продажа";
+            ResumeLayout(false);
+            PerformLayout();
+        }
+
+        #endregion
+
+        private ComboBox comboBoxPizza;
+        private Button buttonCancel;
+        private Button buttonSell;
+        private TextBox textBoxCount;
+        private Label label2;
+        private Label label1;
+    }
+}

Pizzeria/Pizzeria/FormSellPizza.cs

@@ -0,0 +1,93 @@
+using Microsoft.Extensions.Logging;
+using PizzeriaContracts.BusinessLogicsContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+
+namespace Pizzeria
+{
+    public partial class FormSellPizza : Form
+    {
+        private readonly List<PizzaViewModel>? _list;
+        private readonly IShopLogic _shopLogic;
+        private readonly ILogger _logger;
+
+        public int Id
+        {
+            get
+            {
+                return Convert.ToInt32(comboBoxPizza.SelectedValue);
+            }
+            set
+            {
+                comboBoxPizza.SelectedValue = value;
+            }
+        }
+        public IPizzaModel? PizzaModel
+        {
+            get
+            {
+                if (_list == null)
+                {
+                    return null;
+                }
+                foreach (var elem in _list)
+                {
+                    if (elem.Id == Id)
+                    {
+                        return elem;
+                    }
+                }
+                return null;
+            }
+        }
+        public FormSellPizza(ILogger<FormSellPizza> logger, IPizzaLogic pizzaLogic, IShopLogic shopLogic)
+        {
+            InitializeComponent();
+            _shopLogic = shopLogic;
+            _logger = logger;
+            _list = pizzaLogic.ReadList(null);
+            if (_list != null)
+            {
+                comboBoxPizza.DisplayMember = "PizzaName";
+                comboBoxPizza.ValueMember = "Id";
+                comboBoxPizza.DataSource = _list;
+                comboBoxPizza.SelectedItem = null;
+            }
+            _shopLogic = shopLogic;
+        }
+
+        private void buttonSell_Click(object sender, EventArgs e)
+        {
+            if (string.IsNullOrEmpty(textBoxCount.Text))
+            {
+                MessageBox.Show("Заполните поле Количество", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+            if (comboBoxPizza.SelectedValue == null)
+            {
+                MessageBox.Show("Выберите пиццу", "Ошибка", MessageBoxButtons.OK, MessageBoxIcon.Error);
+                return;
+            }
+
+            try
+            {
+                _shopLogic.sellPizza(PizzaModel, Convert.ToInt32(textBoxCount.Text));
+                MessageBox.Show("Продано успешно!");
+            }
+            catch (ArgumentException ex)
+            {
+                MessageBox.Show("Ошибка продажи. Слишком большое количество");
+                _logger.LogWarning(ex, "Ошибка продажи");
+                return;
+            } catch(Exception err)
+            {
+                MessageBox.Show("Ошибка продажи.");
+                _logger.LogError(err, "Ошибка продажи");
+                return;
+            }
+
+            DialogResult = DialogResult.OK;
+            Close();
+        }
+    }
+}

Pizzeria/Pizzeria/FormSellPizza.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>

Pizzeria/Pizzeria/FormShop.Designer.cs

@@ -41,6 +41,8 @@
             this.labelShop = new System.Windows.Forms.Label();
             this.buttonSave = new System.Windows.Forms.Button();
             this.buttonCancel = new System.Windows.Forms.Button();
+            this.textBoxCapacity = new System.Windows.Forms.TextBox();
+            this.label1 = new System.Windows.Forms.Label();
             ((System.ComponentModel.ISupportInitialize)(this.dataGridView)).BeginInit();
             this.SuspendLayout();
             // 
@@ -103,7 +105,7 @@
             this.dataGridView.Name = "dataGridView";
             this.dataGridView.RowHeadersWidth = 62;
             this.dataGridView.RowTemplate.Height = 25;
-            this.dataGridView.Size = new System.Drawing.Size(664, 296);
+            this.dataGridView.Size = new System.Drawing.Size(870, 296);
             this.dataGridView.TabIndex = 21;
             // 
             // ColumnID
@@ -147,7 +149,7 @@
             // buttonSave
             // 
             this.buttonSave.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
-            this.buttonSave.Location = new System.Drawing.Point(415, 383);
+            this.buttonSave.Location = new System.Drawing.Point(621, 383);
             this.buttonSave.Margin = new System.Windows.Forms.Padding(3, 4, 3, 4);
             this.buttonSave.Name = "buttonSave";
             this.buttonSave.Size = new System.Drawing.Size(137, 30);
@@ -159,7 +161,7 @@
             // buttonCancel
             // 
             this.buttonCancel.Anchor = ((System.Windows.Forms.AnchorStyles)((System.Windows.Forms.AnchorStyles.Bottom | System.Windows.Forms.AnchorStyles.Right)));
-            this.buttonCancel.Location = new System.Drawing.Point(558, 383);
+            this.buttonCancel.Location = new System.Drawing.Point(764, 383);
             this.buttonCancel.Margin = new System.Windows.Forms.Padding(3, 4, 3, 4);
             this.buttonCancel.Name = "buttonCancel";
             this.buttonCancel.Size = new System.Drawing.Size(118, 30);
@@ -168,11 +170,30 @@
             this.buttonCancel.UseVisualStyleBackColor = true;
             this.buttonCancel.Click += new System.EventHandler(this.ButtonCancel_Click);
             // 
+            // textBoxCapacity
+            // 
+            this.textBoxCapacity.Location = new System.Drawing.Point(696, 36);
+            this.textBoxCapacity.Margin = new System.Windows.Forms.Padding(3, 4, 3, 4);
+            this.textBoxCapacity.Name = "textBoxCapacity";
+            this.textBoxCapacity.Size = new System.Drawing.Size(186, 27);
+            this.textBoxCapacity.TabIndex = 29;
+            // 
+            // label1
+            // 
+            this.label1.AutoSize = true;
+            this.label1.Location = new System.Drawing.Point(696, 12);
+            this.label1.Name = "label1";
+            this.label1.Size = new System.Drawing.Size(100, 20);
+            this.label1.TabIndex = 30;
+            this.label1.Text = "Вместимость";
+            // 
             // FormShop
             // 
             this.AutoScaleDimensions = new System.Drawing.SizeF(8F, 20F);
             this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
-            this.ClientSize = new System.Drawing.Size(704, 426);
+            this.ClientSize = new System.Drawing.Size(910, 426);
+            this.Controls.Add(this.label1);
+            this.Controls.Add(this.textBoxCapacity);
             this.Controls.Add(this.buttonSave);
             this.Controls.Add(this.buttonCancel);
             this.Controls.Add(this.dateTimePicker);
@@ -206,5 +227,7 @@
         private Label labelShop;
         private Button buttonSave;
         private Button buttonCancel;
+        private TextBox textBoxCapacity;
+        private Label label1;
     }
 }

Pizzeria/Pizzeria/FormShop.cs

@@ -37,6 +37,7 @@ namespace Pizzeria
                         textBoxName.Text = view.ShopName;
                         textBoxAddres.Text = view.Addres.ToString();
                         dateTimePicker.Text = view.OpenTime.ToString();
+                        textBoxCapacity.Text = view.Capacity.ToString();
                         _shopPizzas = view.ShopPizzas ?? new Dictionary<int, (IPizzaModel, int)>();
                         LoadData();
                     }
@@ -90,6 +91,7 @@ namespace Pizzeria
                     Id = _id ?? 0,
                     ShopName = textBoxName.Text,
                     Addres = textBoxAddres.Text,
+                    Capacity = Convert.ToInt32(textBoxCapacity.Text),
                     OpenTime = dateTimePicker.Value.Date,
                     ShopPizzas = _shopPizzas
                 };

Pizzeria/Pizzeria/Pizzeria.csproj

@@ -9,6 +9,10 @@
   </PropertyGroup>
 
   <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Design" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
     <PackageReference Include="Microsoft.Extensions.DependencyInjection" Version="7.0.0" />
     <PackageReference Include="Microsoft.Extensions.Logging" Version="7.0.0" />
     <PackageReference Include="NLog.Extensions.Logging" Version="5.2.1" />
@@ -16,9 +20,8 @@
 
   <ItemGroup>
     <ProjectReference Include="..\PizzeriaBusinessLogic\PizzeriaBusinessLogic.csproj" />
-    <ProjectReference Include="..\PizzeriaContracts\PizzeriaContracts.csproj" />
+    <ProjectReference Include="..\PizzeriaDatabaseImplement\PizzeriaDatabaseImplement.csproj" />
     <ProjectReference Include="..\PizzeriaDataModels\PizzeriaDataModels.csproj" />
-    <ProjectReference Include="..\PizzeriaListImplement\PizzeriaListImplement.csproj" />
   </ItemGroup>
 
   <ItemGroup>

Pizzeria/Pizzeria/Program.cs

@@ -1,7 +1,7 @@
 using PizzeriaBusinessLogic;
 using PizzeriaContracts.BusinessLogicsContracts;
 using PizzeriaContracts.StoragesContracts;
-using PizzeriaListImplement.Implements;
+using PizzeriaDatabaseImplement.Implements;
 using Microsoft.Extensions.DependencyInjection;
 using Microsoft.Extensions.Logging;
 using NLog.Extensions.Logging;
@@ -53,6 +53,7 @@ namespace Pizzeria
             services.AddTransient<FormShopPizza>();
             services.AddTransient<FormShops>();
             services.AddTransient<FormPizzaComponent>();
+            services.AddTransient<FormSellPizza>();
         }
     }
 }

Pizzeria/PizzeriaBusinessLogic/OrderLogic.cs

@@ -12,10 +12,14 @@ namespace PizzeriaBusinessLogic
     {
         private readonly ILogger _logger;
         private readonly IOrderStorage _orderStorage;
-        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage)
+        private readonly IShopLogic _shopLogic;
+        private readonly IPizzaStorage _pizzaStorage;
+        public OrderLogic(ILogger<OrderLogic> logger, IOrderStorage orderStorage, IShopLogic shopLogic, IPizzaStorage pizzaStorage)
         {
             _logger = logger;
             _orderStorage = orderStorage;
+            _shopLogic = shopLogic;
+            _pizzaStorage = pizzaStorage;
         }
         public List<OrderViewModel>? ReadList(OrderSearchModel? model)
         {
@@ -63,7 +67,18 @@ namespace PizzeriaBusinessLogic
 
             if(newStatus == OrderStatus.Выдан)
             {
-                model.DateImplement = DateTime.Now;
+                model.DateImplement = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
+            }
+
+            if (newStatus == OrderStatus.Готов)
+            {
+                var pizza = _pizzaStorage.GetElement(new PizzaSearchModel { Id = model.PizzaId });
+
+                if(!TryRestoreShops(pizza, model.Count))
+                {
+                    _logger.LogWarning("Status update to " + newStatus.ToString() + " operation failed. Incorrect count.");
+                    throw new ArgumentException("Количество изделий слишком велико");
+                }
             }
 
             if (_orderStorage.Update(model) == null)
@@ -109,5 +124,38 @@ namespace PizzeriaBusinessLogic
             _logger.LogInformation("Sum:{ Sum}. Id: { Id}", model.Sum, model.Id);
         }
 
+        private bool TryRestoreShops(IPizzaModel pizza, int count)
+        {
+            int freePlaces = 0;
+
+            _shopLogic.ReadList(null).ForEach(x =>
+            {
+                int currentFreePlaces = x.Capacity;
+                foreach (var pair in x.ShopPizzas)
+                {
+                    currentFreePlaces -= pair.Value.Item2;
+                }
+                freePlaces += currentFreePlaces;
+            });
+
+            if (freePlaces < count) return false;
+
+            _shopLogic.ReadList(null).ForEach(x =>
+            {
+                if (count <= 0) return;
+
+                int currentFreePlaces = x.Capacity;
+                foreach (var elem in x.ShopPizzas)
+                {
+                    currentFreePlaces -= elem.Value.Item2;
+                }
+
+                _shopLogic.AddPizza(new ShopSearchModel { Id = x.Id }, pizza, Math.Min(currentFreePlaces, count));
+                count -= currentFreePlaces;
+            });
+
+            return true;
+        }
+
     }
 }

Pizzeria/PizzeriaBusinessLogic/ShopLogic.cs

@@ -121,9 +121,17 @@ namespace PizzeriaBusinessLogic
 
             if(model.ShopPizzas.TryGetValue(pizza.Id, out var pair))
             {
+                if(model.Capacity - pair.Item2 < count)
+                {
+                    throw new ArgumentException("Количество добавляемого изделия слишком велико");
+                }
                 model.ShopPizzas[pizza.Id] = (pair.Item1, pair.Item2 + count);
             } else
             {
+                if (model.Capacity < count)
+                {
+                    throw new ArgumentException("Количество добавляемого изделия слишком велико");
+                }
                 model.ShopPizzas.Add(pizza.Id, (pizza, count));
             }
 
@@ -131,11 +139,25 @@ namespace PizzeriaBusinessLogic
             {
                 Id = model.Id,
                 ShopName = model.ShopName,
+                OpenTime = model.OpenTime,
                 Addres = model.Addres,
+                Capacity = model.Capacity,
                 ShopPizzas = model.ShopPizzas,
             });
 
             return true;
         }
+
+        public bool sellPizza(IPizzaModel pizza, int count)
+        {
+            bool result = _shopStorage.TrySellPizza(pizza, count);
+
+            if(!result)
+            {
+                throw new ArgumentException("Количество продаваемого изделия слишком велико");
+            }
+
+            return result;
+        }
     }
 }

Pizzeria/PizzeriaContracts/BindingModels/OrderBindingModel.cs

@@ -14,7 +14,7 @@ namespace PizzeriaContracts.BindingModels
         public int Count { get; set; }
         public double Sum { get; set; }
         public OrderStatus Status { get; set; } = OrderStatus.Неизвестен;
-        public DateTime DateCreate { get; set; } = DateTime.Now;
+        public DateTime DateCreate { get; set; } = DateTime.SpecifyKind(DateTime.Now, DateTimeKind.Utc);
         public DateTime? DateImplement { get; set; }
     }
 

Pizzeria/PizzeriaContracts/BindingModels/ShopBindingModel.cs

@@ -10,6 +10,7 @@ namespace PizzeriaContracts.BindingModels
         public string Addres { get; set; } = String.Empty;
 
         public DateTime OpenTime { get; set; }
+        public int Capacity { get; set; }
 
         public Dictionary<int, (IPizzaModel, int)> ShopPizzas
         {

Pizzeria/PizzeriaContracts/BusinessLogicsContracts/IShopLogic.cs

@@ -10,6 +10,7 @@ namespace PizzeriaContracts.BusinessLogicsContracts
         List<ShopViewModel>? ReadList(ShopSearchModel? model);
         ShopViewModel? ReadElement(ShopSearchModel model);
         bool AddPizza(ShopSearchModel shop, IPizzaModel pizza, int count);
+        bool sellPizza(IPizzaModel pizza, int count);
         bool Create(ShopBindingModel model);
         bool Update(ShopBindingModel model);
         bool Delete(ShopBindingModel model);

Pizzeria/PizzeriaContracts/StoragesContracts/IShopStorage.cs

@@ -1,6 +1,7 @@
 using PizzeriaContracts.BindingModels;
 using PizzeriaContracts.SearchModels;
 using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
 
 namespace PizzeriaContracts.StoragesContracts
 {
@@ -9,6 +10,7 @@ namespace PizzeriaContracts.StoragesContracts
         List<ShopViewModel> GetFullList();
         List<ShopViewModel> GetFilteredList(ShopSearchModel model);
         ShopViewModel? GetElement(ShopSearchModel model);
+        bool TrySellPizza(IPizzaModel pizza, int count);
         ShopViewModel? Insert(ShopBindingModel model);
         ShopViewModel? Update(ShopBindingModel model);
         ShopViewModel? Delete(ShopBindingModel model);

Pizzeria/PizzeriaContracts/ViewModels/ShopViewModel.cs

@@ -13,7 +13,8 @@ namespace PizzeriaContracts.ViewModels
         public string Addres { get; set; } = string.Empty;
         [DisplayName("Дата открытия")]
         public DateTime OpenTime { get; set; }
-
+        [DisplayName("Вместимость")]
+        public int Capacity { get; set; }
         public Dictionary<int, (IPizzaModel, int)> ShopPizzas
         {
             get;

Pizzeria/PizzeriaDataModels/Models/IShopModel.cs

@@ -12,6 +12,7 @@ namespace PizzeriaDataModels
         string Addres { get; }
         DateTime OpenTime { get; }
 
+        int Capacity { get; }
         Dictionary<int, (IPizzaModel, int)> ShopPizzas { get; }
     }
 }

Pizzeria/PizzeriaDatabaseImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,83 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDatabaseImplement.models;
+namespace PizzeriaDatabaseImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        public List<ComponentViewModel> GetFullList()
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Components
+            .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel
+       model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Components
+            .Where(x => x.ComponentName.Contains(model.ComponentName))
+           .Select(x => x.GetViewModel)
+           .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Components
+            .FirstOrDefault(x =>
+           (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName ==
+           model.ComponentName) ||
+            (model.Id.HasValue && x.Id == model.Id))
+            ?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            using var context = new PizzeriaDatabase();
+            context.Components.Add(newComponent);
+            context.SaveChanges();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var component = context.Components.FirstOrDefault(x => x.Id ==
+           model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            context.SaveChanges();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var element = context.Components.FirstOrDefault(rec => rec.Id ==
+           model.Id);
+            if (element != null)
+            {
+                context.Components.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Implements/OrderStorage.cs

@@ -0,0 +1,72 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDatabaseImplement.models;
+using Microsoft.EntityFrameworkCore;
+
+
+namespace PizzeriaDatabaseImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        public List<OrderViewModel> GetFullList()
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Orders
+                .Include(x => x.Pizza)
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Orders
+                .Where(x => (model.Id.HasValue && x.Id == model.Id))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Orders
+            .FirstOrDefault(x =>
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            Order newOrder = Order.Create(context, model);
+
+            context.Orders.Add(newOrder);
+            context.SaveChanges();
+            return newOrder.GetViewModel;
+
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var order = context.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            context.SaveChanges();
+            return order.GetViewModel;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var element = context.Orders.FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Orders.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+
+}

Pizzeria/PizzeriaDatabaseImplement/Implements/PizzaStorage.cs

@@ -0,0 +1,104 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDatabaseImplement.models;
+using Microsoft.EntityFrameworkCore;
+namespace PizzeriaDatabaseImplement.Implements
+{
+    public class PizzaStorage : IPizzaStorage
+    {
+        public List<PizzaViewModel> GetFullList()
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Pizzas
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<PizzaViewModel> GetFilteredList(PizzaSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PizzaName))
+            {
+                return new();
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Pizzas
+             .Include(x => x.Components)
+            .ThenInclude(x => x.Component)
+            .Where(x => x.PizzaName.Contains(model.PizzaName))
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public PizzaViewModel? GetElement(PizzaSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PizzaName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Pizzas
+             .Include(x => x.Components)
+             .ThenInclude(x => x.Component)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.PizzaName) &&
+            x.PizzaName == model.PizzaName) ||
+            (model.Id.HasValue && x.Id ==
+            model.Id))
+            ?.GetViewModel;
+        }
+        public PizzaViewModel? Insert(PizzaBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var newPizza = Pizza.Create(context, model);
+            if (newPizza == null)
+            {
+                return null;
+            }
+            context.Pizzas.Add(newPizza);
+            context.SaveChanges();
+            return newPizza.GetViewModel;
+        }
+        public PizzaViewModel? Update(PizzaBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var pizza = context.Pizzas.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (pizza == null)
+                {
+                    return null;
+                }
+                pizza.Update(model);
+                context.SaveChanges();
+                pizza.UpdateComponents(context, model);
+                transaction.Commit();
+                return pizza.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public PizzaViewModel? Delete(PizzaBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var element = context.Pizzas
+            .Include(x => x.Components)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Pizzas.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Implements/ShopStorage.cs

@@ -0,0 +1,152 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDatabaseImplement.models;
+using Microsoft.EntityFrameworkCore;
+using PizzeriaDataModels;
+
+namespace PizzeriaDatabaseImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        public List<ShopViewModel> GetFullList()
+        {
+            using var context = new PizzeriaDatabase();
+            return context.Shops
+             .Include(x => x.Pizzas)
+            .ThenInclude(x => x.Pizza)
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Shops
+             .Include(x => x.Pizzas)
+            .ThenInclude(x => x.Pizza)
+            .Where(x => x.ShopName.Contains(model.ShopName))
+            .ToList()
+            .Select(x => x.GetViewModel)
+            .ToList();
+        }
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) &&
+            !model.Id.HasValue)
+            {
+                return null;
+            }
+            using var context = new PizzeriaDatabase();
+            return context.Shops
+             .Include(x => x.Pizzas)
+             .ThenInclude(x => x.Pizza)
+             .FirstOrDefault(x => (!string.IsNullOrEmpty(model.ShopName) &&
+                                    x.ShopName == model.ShopName) ||
+                                    (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+
+        }
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var newShop = Shop.Create(context, model);
+
+            if (context.Shops.Any(x => x.ShopName == newShop.ShopName))
+            {
+                throw new Exception("Магазин с таким названием уже существует");
+            }
+
+            if (newShop == null)
+            {
+                return null;
+            }
+            context.Shops.Add(newShop);
+            context.SaveChanges();
+            return newShop.GetViewModel;
+        }
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            using var transaction = context.Database.BeginTransaction();
+            try
+            {
+                var shop = context.Shops.FirstOrDefault(rec =>
+                rec.Id == model.Id);
+                if (shop == null)
+                {
+                    return null;
+                }
+                shop.Update(model);
+                context.SaveChanges();
+                shop.UpdatePizzas(context, model);
+                transaction.Commit();
+                return shop.GetViewModel;
+            }
+            catch
+            {
+                transaction.Rollback();
+                throw;
+            }
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            using var context = new PizzeriaDatabase();
+            var element = context.Shops
+            .Include(x => x.Pizzas)
+            .FirstOrDefault(rec => rec.Id == model.Id);
+            if (element != null)
+            {
+                context.Shops.Remove(element);
+                context.SaveChanges();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+
+        public bool TrySellPizza(IPizzaModel pizza, int count)
+        {
+            using var context = new PizzeriaDatabase();
+            using var transaction = context.Database.BeginTransaction();
+
+            foreach (var shopPizzas in context.ShopPizzas.Where(x => x.PizzaId == pizza.Id))
+            {
+                var min = Math.Min(count, shopPizzas.Count);
+                shopPizzas.Count -= min;
+                count -= min;
+
+                if (count <= 0)
+                {
+                    break;
+                }
+            }
+
+            if (count == 0)
+            {
+                context.SaveChanges();
+                transaction.Commit();
+            }
+
+            else
+            {
+                transaction.Rollback();
+            }
+
+            if (count > 0)
+            {
+                return false;
+            }
+
+            return true;
+        }
+
+        public bool TryRestoreShops(IPizzaModel pizza, int count)
+        {
+            throw new NotImplementedException();
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230228062848_Init.Designer.cs

@@ -0,0 +1,172 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PizzeriaDatabaseImplement;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PizzeriaDatabase))]
+    [Migration("20230228062848_Init")]
+    partial class Init
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .IsRequired()
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PizzaName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Orders")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Component", "Component")
+                        .WithMany("PizzaComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Components")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Navigation("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230228062848_Init.cs

@@ -0,0 +1,126 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Init : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Components",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ComponentName = table.Column<string>(type: "text", nullable: false),
+                    Cost = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Components", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Pizzas",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PizzaName = table.Column<string>(type: "text", nullable: false),
+                    Price = table.Column<double>(type: "double precision", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Pizzas", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "Orders",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PizzaId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false),
+                    Sum = table.Column<double>(type: "double precision", nullable: false),
+                    Status = table.Column<int>(type: "integer", nullable: false),
+                    DateCreate = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    DateImplement = table.Column<DateTime>(type: "timestamp with time zone", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Orders", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_Orders_Pizzas_PizzaId",
+                        column: x => x.PizzaId,
+                        principalTable: "Pizzas",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "PizzaComponents",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PizzaId = table.Column<int>(type: "integer", nullable: false),
+                    ComponentId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_PizzaComponents", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_PizzaComponents_Components_ComponentId",
+                        column: x => x.ComponentId,
+                        principalTable: "Components",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_PizzaComponents_Pizzas_PizzaId",
+                        column: x => x.PizzaId,
+                        principalTable: "Pizzas",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_Orders_PizzaId",
+                table: "Orders",
+                column: "PizzaId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PizzaComponents_ComponentId",
+                table: "PizzaComponents",
+                column: "ComponentId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_PizzaComponents_PizzaId",
+                table: "PizzaComponents",
+                column: "PizzaId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "Orders");
+
+            migrationBuilder.DropTable(
+                name: "PizzaComponents");
+
+            migrationBuilder.DropTable(
+                name: "Components");
+
+            migrationBuilder.DropTable(
+                name: "Pizzas");
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230228065928_Change constraint.Designer.cs

@@ -0,0 +1,171 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PizzeriaDatabaseImplement;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PizzeriaDatabase))]
+    [Migration("20230228065928_Change constraint")]
+    partial class Changeconstraint
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PizzaName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Orders")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Component", "Component")
+                        .WithMany("PizzaComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Components")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Navigation("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230228065928_Change constraint.cs

@@ -0,0 +1,37 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class Changeconstraint : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "timestamp with time zone",
+                nullable: true,
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AlterColumn<DateTime>(
+                name: "DateImplement",
+                table: "Orders",
+                type: "timestamp with time zone",
+                nullable: false,
+                defaultValue: new DateTime(1, 1, 1, 0, 0, 0, 0, DateTimeKind.Unspecified),
+                oldClrType: typeof(DateTime),
+                oldType: "timestamp with time zone",
+                oldNullable: true);
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230423174224_AddShop.Designer.cs

@@ -0,0 +1,248 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PizzeriaDatabaseImplement;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PizzeriaDatabase))]
+    [Migration("20230423174224_AddShop")]
+    partial class AddShop
+    {
+        /// <inheritdoc />
+        protected override void BuildTargetModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PizzaName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Addres")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Capacity")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("OpenTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.ShopPizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopPizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Orders")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Component", "Component")
+                        .WithMany("PizzaComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Components")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.ShopPizza", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany()
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Shop", "Shop")
+                        .WithMany("Pizzas")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Navigation("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Shop", b =>
+                {
+                    b.Navigation("Pizzas");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/20230423174224_AddShop.cs

@@ -0,0 +1,79 @@
+using System;
+using Microsoft.EntityFrameworkCore.Migrations;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddShop : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "Shops",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    ShopName = table.Column<string>(type: "text", nullable: false),
+                    Addres = table.Column<string>(type: "text", nullable: false),
+                    OpenTime = table.Column<DateTime>(type: "timestamp with time zone", nullable: false),
+                    Capacity = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_Shops", x => x.Id);
+                });
+
+            migrationBuilder.CreateTable(
+                name: "ShopPizzas",
+                columns: table => new
+                {
+                    Id = table.Column<int>(type: "integer", nullable: false)
+                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
+                    PizzaId = table.Column<int>(type: "integer", nullable: false),
+                    ShopId = table.Column<int>(type: "integer", nullable: false),
+                    Count = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_ShopPizzas", x => x.Id);
+                    table.ForeignKey(
+                        name: "FK_ShopPizzas_Pizzas_PizzaId",
+                        column: x => x.PizzaId,
+                        principalTable: "Pizzas",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                    table.ForeignKey(
+                        name: "FK_ShopPizzas_Shops_ShopId",
+                        column: x => x.ShopId,
+                        principalTable: "Shops",
+                        principalColumn: "Id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopPizzas_PizzaId",
+                table: "ShopPizzas",
+                column: "PizzaId");
+
+            migrationBuilder.CreateIndex(
+                name: "IX_ShopPizzas_ShopId",
+                table: "ShopPizzas",
+                column: "ShopId");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(
+                name: "ShopPizzas");
+
+            migrationBuilder.DropTable(
+                name: "Shops");
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/Migrations/PizzeriaDatabaseModelSnapshot.cs

@@ -0,0 +1,245 @@
+// <auto-generated />
+using System;
+using Microsoft.EntityFrameworkCore;
+using Microsoft.EntityFrameworkCore.Infrastructure;
+using Microsoft.EntityFrameworkCore.Storage.ValueConversion;
+using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;
+using PizzeriaDatabaseImplement;
+
+#nullable disable
+
+namespace PizzeriaDatabaseImplement.Migrations
+{
+    [DbContext(typeof(PizzeriaDatabase))]
+    partial class PizzeriaDatabaseModelSnapshot : ModelSnapshot
+    {
+        protected override void BuildModel(ModelBuilder modelBuilder)
+        {
+#pragma warning disable 612, 618
+            modelBuilder
+                .HasAnnotation("ProductVersion", "7.0.3")
+                .HasAnnotation("Relational:MaxIdentifierLength", 63);
+
+            NpgsqlModelBuilderExtensions.UseIdentityByDefaultColumns(modelBuilder);
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("ComponentName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Cost")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Components");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("DateCreate")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<DateTime?>("DateImplement")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Status")
+                        .HasColumnType("integer");
+
+                    b.Property<double>("Sum")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("PizzaName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<double>("Price")
+                        .HasColumnType("double precision");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Pizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("ComponentId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("ComponentId");
+
+                    b.HasIndex("PizzaId");
+
+                    b.ToTable("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Shop", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<string>("Addres")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.Property<int>("Capacity")
+                        .HasColumnType("integer");
+
+                    b.Property<DateTime>("OpenTime")
+                        .HasColumnType("timestamp with time zone");
+
+                    b.Property<string>("ShopName")
+                        .IsRequired()
+                        .HasColumnType("text");
+
+                    b.HasKey("Id");
+
+                    b.ToTable("Shops");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.ShopPizza", b =>
+                {
+                    b.Property<int>("Id")
+                        .ValueGeneratedOnAdd()
+                        .HasColumnType("integer");
+
+                    NpgsqlPropertyBuilderExtensions.UseIdentityByDefaultColumn(b.Property<int>("Id"));
+
+                    b.Property<int>("Count")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("PizzaId")
+                        .HasColumnType("integer");
+
+                    b.Property<int>("ShopId")
+                        .HasColumnType("integer");
+
+                    b.HasKey("Id");
+
+                    b.HasIndex("PizzaId");
+
+                    b.HasIndex("ShopId");
+
+                    b.ToTable("ShopPizzas");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Order", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Orders")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.PizzaComponent", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Component", "Component")
+                        .WithMany("PizzaComponents")
+                        .HasForeignKey("ComponentId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany("Components")
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Component");
+
+                    b.Navigation("Pizza");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.ShopPizza", b =>
+                {
+                    b.HasOne("PizzeriaDatabaseImplement.models.Pizza", "Pizza")
+                        .WithMany()
+                        .HasForeignKey("PizzaId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.HasOne("PizzeriaDatabaseImplement.models.Shop", "Shop")
+                        .WithMany("Pizzas")
+                        .HasForeignKey("ShopId")
+                        .OnDelete(DeleteBehavior.Cascade)
+                        .IsRequired();
+
+                    b.Navigation("Pizza");
+
+                    b.Navigation("Shop");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Component", b =>
+                {
+                    b.Navigation("PizzaComponents");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Pizza", b =>
+                {
+                    b.Navigation("Components");
+
+                    b.Navigation("Orders");
+                });
+
+            modelBuilder.Entity("PizzeriaDatabaseImplement.models.Shop", b =>
+                {
+                    b.Navigation("Pizzas");
+                });
+#pragma warning restore 612, 618
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/PizzeriaDatabase.cs

@@ -0,0 +1,23 @@
+using PizzeriaDatabaseImplement.models;
+using Microsoft.EntityFrameworkCore;
+
+namespace PizzeriaDatabaseImplement
+{
+    public class PizzeriaDatabase : DbContext
+    {
+        protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
+        {
+            if (optionsBuilder.IsConfigured == false)
+            {
+                optionsBuilder.UseNpgsql(@"Host=localhost;Port=5432;Database=PizzeriaDatabase;Username=postgres;Password=postgres");
+            }
+            base.OnConfiguring(optionsBuilder);
+        }
+        public virtual DbSet<Component> Components { set; get; }
+        public virtual DbSet<Pizza> Pizzas { set; get; }
+        public virtual DbSet<Shop> Shops { set; get; }
+        public virtual DbSet<PizzaComponent> PizzaComponents { set; get; }
+        public virtual DbSet<ShopPizza> ShopPizzas { set; get; }
+        public virtual DbSet<Order> Orders { set; get; }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/PizzeriaDatabaseImplement.csproj

@@ -0,0 +1,24 @@
+<Project Sdk="Microsoft.NET.Sdk">
+
+  <PropertyGroup>
+    <TargetFramework>net6.0</TargetFramework>
+    <ImplicitUsings>enable</ImplicitUsings>
+    <Nullable>enable</Nullable>
+  </PropertyGroup>
+
+  <ItemGroup>
+    <PackageReference Include="Microsoft.EntityFrameworkCore" Version="7.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.SqlServer" Version="7.0.3" />
+    <PackageReference Include="Microsoft.EntityFrameworkCore.Tools" Version="7.0.3">
+      <PrivateAssets>all</PrivateAssets>
+      <IncludeAssets>runtime; build; native; contentfiles; analyzers; buildtransitive</IncludeAssets>
+    </PackageReference>
+    <PackageReference Include="Npgsql.EntityFrameworkCore.PostgreSQL" Version="7.0.3" />
+  </ItemGroup>
+
+  <ItemGroup>
+    <ProjectReference Include="..\PizzeriaContracts\PizzeriaContracts.csproj" />
+    <ProjectReference Include="..\PizzeriaDataModels\PizzeriaDataModels.csproj" />
+  </ItemGroup>
+
+</Project>

Pizzeria/PizzeriaDatabaseImplement/models/Component.cs

@@ -0,0 +1,57 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        [Required]
+        public string ComponentName { get; private set; } = string.Empty;
+        [Required]
+        public double Cost { get; set; }
+        [ForeignKey("ComponentId")]
+        public virtual List<PizzaComponent> PizzaComponents { get; set; } =
+       new();
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component Create(ComponentViewModel model)
+        {
+            return new Component
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/models/Order.cs

@@ -0,0 +1,72 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.ComponentModel.DataAnnotations;
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class Order : IOrderModel
+    {
+        [Required]
+        public int PizzaId { get; private set; }
+
+        [Required]
+        public int Count { get; private set; }
+
+        [Required]
+        public double Sum { get; private set; }
+
+        [Required]
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        [Required]
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public virtual Pizza Pizza { get; set; } = new();
+
+        public int Id { get; private set; }
+
+        public static Order? Create(PizzeriaDatabase context, OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                PizzaId = model.PizzaId,
+                Pizza = context.Pizzas.FirstOrDefault(x => x.Id == model.PizzaId),
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            Status = model.Status;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PizzaId = PizzaId,
+            PizzaName = Pizza.PizzaName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/models/Pizza.cs

@@ -0,0 +1,97 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class Pizza : IPizzaModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string PizzaName { get; set; } = string.Empty;
+        [Required]
+        public double Price { get; set; }
+        private Dictionary<int, (IComponentModel, int)>? _pizzaComponents =
+       null;
+        [NotMapped]
+        public Dictionary<int, (IComponentModel, int)> PizzaComponents
+        {
+            get
+            {
+                if (_pizzaComponents == null)
+                {
+                    _pizzaComponents = Components
+                    .ToDictionary(recPC => recPC.ComponentId, recPC =>
+                   (recPC.Component as IComponentModel, recPC.Count));
+                }
+                return _pizzaComponents;
+            }
+        }
+        [ForeignKey("PizzaId")]
+        public virtual List<PizzaComponent> Components { get; set; } = new();
+        [ForeignKey("PizzaId")]
+        public virtual List<Order> Orders { get; set; } = new();
+        public static Pizza Create(PizzeriaDatabase context, PizzaBindingModel model)
+        {
+            return new Pizza()
+            {
+                Id = model.Id,
+                PizzaName = model.PizzaName,
+                Price = model.Price,
+                Components = model.PizzaComponents.Select(x => new
+               PizzaComponent
+                {
+                    Component = context.Components.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(PizzaBindingModel model)
+        {
+            PizzaName = model.PizzaName;
+            Price = model.Price;
+        }
+        public PizzaViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PizzaName = PizzaName,
+            Price = Price,
+            PizzaComponents = PizzaComponents
+        };
+        public void UpdateComponents(PizzeriaDatabase context,
+       PizzaBindingModel model)
+        {
+            var pizzaComponents = context.PizzaComponents.Where(rec =>
+           rec.PizzaId == model.Id).ToList();
+            if (pizzaComponents != null && pizzaComponents.Count > 0)
+            { // удалили те, которых нет в модели
+                context.PizzaComponents.RemoveRange(pizzaComponents.Where(rec
+               => !model.PizzaComponents.ContainsKey(rec.ComponentId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updateComponent in pizzaComponents)
+                {
+                    updateComponent.Count =
+                   model.PizzaComponents[updateComponent.ComponentId].Item2;
+                    model.PizzaComponents.Remove(updateComponent.ComponentId);
+                }
+                context.SaveChanges();
+            }
+            var pizza = context.Pizzas.First(x => x.Id == Id);
+            foreach (var pc in model.PizzaComponents)
+            {
+                context.PizzaComponents.Add(new PizzaComponent
+                {
+                    Pizza = pizza,
+                    Component = context.Components.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _pizzaComponents = null;
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/models/PizzaComponent.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class PizzaComponent
+    {
+        public int Id { get; set; }
+        [Required]
+        public int PizzaId { get; set; }
+        [Required]
+        public int ComponentId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Component Component { get; set; } = new();
+        public virtual Pizza Pizza { get; set; } = new();
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/models/Shop.cs

@@ -0,0 +1,102 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.ComponentModel.DataAnnotations;
+using System.ComponentModel.DataAnnotations.Schema;
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+        [Required]
+        public string ShopName { get; set; } = string.Empty;
+        [Required]
+        public string Addres { get; set; } = string.Empty;
+        [Required]
+        public DateTime OpenTime { get; set; }
+        [Required]
+        public int Capacity { get; set; }
+        private Dictionary<int, (IPizzaModel, int)>? _shopPizzas = null;
+        [NotMapped]
+        public Dictionary<int, (IPizzaModel, int)> ShopPizzas
+        {
+            get
+            {
+                if (_shopPizzas == null)
+                {
+                    _shopPizzas = Pizzas.ToDictionary(x => x.PizzaId, x => (x.Pizza as IPizzaModel, x.Count));
+                }
+                return _shopPizzas;
+            }
+        }
+        [ForeignKey("ShopId")]
+        public virtual List<ShopPizza> Pizzas { get; set; } = new();
+        public static Shop Create(PizzeriaDatabase context, ShopBindingModel model)
+        {
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Addres = model.Addres,
+                OpenTime = model.OpenTime,
+                Capacity = model.Capacity,
+                Pizzas = model.ShopPizzas.Select(x => new ShopPizza
+                {
+                    Pizza = context.Pizzas.First(y => y.Id == x.Key),
+                    Count = x.Value.Item2
+                }).ToList()
+            };
+        }
+        public void Update(ShopBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Addres = model.Addres;
+            OpenTime = model.OpenTime;
+            Capacity = model.Capacity;
+        }
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Addres = Addres,
+            OpenTime = OpenTime,
+            Capacity = Capacity,
+            ShopPizzas = ShopPizzas
+        };
+        public void UpdatePizzas(PizzeriaDatabase context, ShopBindingModel model)
+        {
+            var shopPizzas = context.ShopPizzas.Where(rec => rec.ShopId == model.Id).ToList();
+            if (shopPizzas != null && shopPizzas.Count > 0)
+            { // удалили те, которых нет в модели
+                context.ShopPizzas.RemoveRange(shopPizzas.Where(rec
+               => !model.ShopPizzas.ContainsKey(rec.PizzaId)));
+                context.SaveChanges();
+                // обновили количество у существующих записей
+                foreach (var updatePizza in shopPizzas)
+                {
+                    updatePizza.Count =
+                   model.ShopPizzas[updatePizza.PizzaId].Item2;
+                    model.ShopPizzas.Remove(updatePizza.PizzaId);
+                }
+                context.SaveChanges();
+            }
+            var shop = context.Shops.First(x => x.Id == Id);
+            foreach (var pc in model.ShopPizzas)
+            {
+                context.ShopPizzas.Add(new ShopPizza
+                {
+                    Shop = shop,
+                    Pizza = context.Pizzas.First(x => x.Id == pc.Key),
+                    Count = pc.Value.Item2
+                });
+                context.SaveChanges();
+            }
+            _shopPizzas = null;
+        }
+    }
+}

Pizzeria/PizzeriaDatabaseImplement/models/ShopPizza.cs

@@ -0,0 +1,17 @@
+using System.ComponentModel.DataAnnotations;
+
+namespace PizzeriaDatabaseImplement.models
+{
+    public class ShopPizza
+    {
+        public int Id { get; set; }
+        [Required]
+        public int PizzaId { get; set; }
+        [Required]
+        public int ShopId { get; set; }
+        [Required]
+        public int Count { get; set; }
+        public virtual Shop Shop { get; set; } = new();
+        public virtual Pizza Pizza { get; set; } = new();
+    }
+}

Pizzeria/PizzeriaListImplement/Implements/ShopStorage.cs

@@ -2,6 +2,7 @@
 using PizzeriaContracts.SearchModels;
 using PizzeriaContracts.StoragesContracts;
 using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
 using PizzeriaListImplement.Models;
 
 namespace PizzeriaListImplement.Implements
@@ -112,5 +113,10 @@ namespace PizzeriaListImplement.Implements
 
             return null;
         }
+
+        public bool TrySellPizza(IPizzaModel pizza, int count)
+        {
+            throw new NotImplementedException();
+        }
     }
 }

Pizzeria/PizzeriaListImplement/Models/Shop.cs

@@ -10,6 +10,8 @@ namespace PizzeriaListImplement.Models
         public string ShopName { get; private set; } = string.Empty;
         public string Addres { get; private set; } = string.Empty;
         public DateTime OpenTime { get; private set; } = DateTime.Now;
+        public int Capacity { get; private set; }
+
 
         public Dictionary<int, (IPizzaModel, int)> ShopPizzas
         {
@@ -29,6 +31,7 @@ namespace PizzeriaListImplement.Models
                 ShopName = model.ShopName,
                 Addres = model.Addres,
                 OpenTime = model.OpenTime,
+                Capacity = model.Capacity,
                 ShopPizzas = model.ShopPizzas
             };
         }
@@ -49,8 +52,10 @@ namespace PizzeriaListImplement.Models
             ShopName = ShopName,
             Addres = Addres,
             OpenTime = OpenTime,
+            Capacity = Capacity,
             ShopPizzas = ShopPizzas
         };
+
     }
 }
 

Pizzeria/PizzeriaShopFileImplement/DataFileSingleton.cs

@@ -0,0 +1,53 @@
+using PizzeriaFileImplement.models;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement
+{
+    public class DataFileSingleton
+    {
+        private static DataFileSingleton? instance;
+        private readonly string ComponentFileName = "Component.xml";
+        private readonly string OrderFileName = "Order.xml";
+        private readonly string PizzaFileName = "Pizza.xml";
+        private readonly string ShopFileName = "Shop.xml";
+        public List<Component> Components { get; private set; }
+        public List<Order> Orders { get; private set; }
+        public List<Pizza> Pizzas { get; private set; }
+        public List<Shop> Shops { get; private set; }
+        public static DataFileSingleton GetInstance()
+        {
+            if (instance == null)
+            {
+                instance = new DataFileSingleton();
+            }
+            return instance;
+        }
+        public void SaveComponents() => SaveData(Components, ComponentFileName, "Components", x => x.GetXElement);
+        public void SavePizzas() => SaveData(Pizzas, PizzaFileName, "Pizzas", x => x.GetXElement);
+        public void SaveShops() => SaveData(Shops, ShopFileName, "Shops", x => x.GetXElement);
+        public void SaveOrders() => SaveData(Orders, OrderFileName, "Orders", x => x.GetXElement);
+        private DataFileSingleton()
+        {
+            Components = LoadData(ComponentFileName, "Component", x => Component.Create(x)!)!;
+            Pizzas = LoadData(PizzaFileName, "Pizza", x => Pizza.Create(x)!)!;
+            Shops = LoadData(ShopFileName, "Shop", x => Shop.Create(x)!)!;
+            Orders = LoadData(OrderFileName, "Order", x => Order.Create(x)!)!;
+        }
+        private static List<T>? LoadData<T>(string filename, string xmlNodeName, Func<XElement, T> selectFunction)
+        {
+            if (File.Exists(filename))
+            {
+                return
+               XDocument.Load(filename)?.Root?.Elements(xmlNodeName)?.Select(selectFunction)?.ToList();
+            }
+            return new List<T>();
+        }
+        private static void SaveData<T>(List<T> data, string filename, string xmlNodeName, Func<T, XElement> selectFunction)
+        {
+            if (data != null)
+            {
+                new XDocument(new XElement(xmlNodeName, data.Select(selectFunction).ToArray())).Save(filename);
+            }
+        }
+    }
+}

Pizzeria/PizzeriaShopFileImplement/Implements/ComponentStorage.cs

@@ -0,0 +1,81 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaFileImplement.models;
+
+
+namespace PizzeriaFileImplement.Implements
+{
+    public class ComponentStorage : IComponentStorage
+    {
+        private readonly DataFileSingleton source;
+        public ComponentStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ComponentViewModel> GetFullList()
+        {
+            return source.Components
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<ComponentViewModel> GetFilteredList(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName))
+            {
+                return new();
+            }
+            return source.Components
+                .Where(x => x.ComponentName.Contains(model.ComponentName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ComponentViewModel? GetElement(ComponentSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ComponentName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Components
+            .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.ComponentName) && x.ComponentName == model.ComponentName) ||
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public ComponentViewModel? Insert(ComponentBindingModel model)
+        {
+            model.Id = source.Components.Count > 0 ? source.Components.Max(x => x.Id) + 1 : 1;
+            var newComponent = Component.Create(model);
+            if (newComponent == null)
+            {
+                return null;
+            }
+            source.Components.Add(newComponent);
+            source.SaveComponents();
+            return newComponent.GetViewModel;
+        }
+        public ComponentViewModel? Update(ComponentBindingModel model)
+        {
+            var component = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (component == null)
+            {
+                return null;
+            }
+            component.Update(model);
+            source.SaveComponents();
+            return component.GetViewModel;
+        }
+        public ComponentViewModel? Delete(ComponentBindingModel model)
+        {
+            var element = source.Components.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Components.Remove(element);
+                source.SaveComponents();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+
+}

Pizzeria/PizzeriaShopFileImplement/Implements/OrderStorage.cs

@@ -0,0 +1,72 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaFileImplement.models;
+
+
+namespace PizzeriaFileImplement.Implements
+{
+    public class OrderStorage : IOrderStorage
+    {
+        private readonly DataFileSingleton source;
+        public OrderStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<OrderViewModel> GetFullList()
+        {
+            return source.Orders
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<OrderViewModel> GetFilteredList(OrderSearchModel model)
+        {
+            return source.Orders
+                .Where(x => (model.Id.HasValue && x.Id == model.Id))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public OrderViewModel? GetElement(OrderSearchModel model)
+        {
+            return source.Orders
+            .FirstOrDefault(x =>
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public OrderViewModel? Insert(OrderBindingModel model)
+        {
+            model.Id = source.Orders.Count > 0 ? source.Orders.Max(x => x.Id) + 1 : 1;
+            var newOrder = Order.Create(model);
+            if (newOrder == null)
+            {
+                return null;
+            }
+            source.Orders.Add(newOrder);
+            source.SaveOrders();
+            return newOrder.GetViewModel;
+        }
+        public OrderViewModel? Update(OrderBindingModel model)
+        {
+            var order = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (order == null)
+            {
+                return null;
+            }
+            order.Update(model);
+            source.SaveOrders();
+            return order.GetViewModel;
+        }
+        public OrderViewModel? Delete(OrderBindingModel model)
+        {
+            var element = source.Orders.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Orders.Remove(element);
+                source.SaveOrders();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+
+}

Pizzeria/PizzeriaShopFileImplement/Implements/PizzaStorage.cs

@@ -0,0 +1,81 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaFileImplement.models;
+
+
+namespace PizzeriaFileImplement.Implements
+{
+    public class PizzaStorage : IPizzaStorage
+    {
+        private readonly DataFileSingleton source;
+        public PizzaStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<PizzaViewModel> GetFullList()
+        {
+            return source.Pizzas
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<PizzaViewModel> GetFilteredList(PizzaSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PizzaName))
+            {
+                return new();
+            }
+            return source.Pizzas
+                .Where(x => x.PizzaName.Contains(model.PizzaName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public PizzaViewModel? GetElement(PizzaSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.PizzaName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Pizzas
+            .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.PizzaName) && x.PizzaName == model.PizzaName) ||
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public PizzaViewModel? Insert(PizzaBindingModel model)
+        {
+            model.Id = source.Pizzas.Count > 0 ? source.Pizzas.Max(x => x.Id) + 1 : 1;
+            var newPizza = Pizza.Create(model);
+            if (newPizza == null)
+            {
+                return null;
+            }
+            source.Pizzas.Add(newPizza);
+            source.SavePizzas();
+            return newPizza.GetViewModel;
+        }
+        public PizzaViewModel? Update(PizzaBindingModel model)
+        {
+            var pizza = source.Pizzas.FirstOrDefault(x => x.Id == model.Id);
+            if (pizza == null)
+            {
+                return null;
+            }
+            pizza.Update(model);
+            source.SavePizzas();
+            return pizza.GetViewModel;
+        }
+        public PizzaViewModel? Delete(PizzaBindingModel model)
+        {
+            var element = source.Pizzas.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Pizzas.Remove(element);
+                source.SavePizzas();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+
+}

Pizzeria/PizzeriaShopFileImplement/Implements/ShopStorage.cs

@@ -0,0 +1,124 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.SearchModels;
+using PizzeriaContracts.StoragesContracts;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using PizzeriaFileImplement.models;
+
+namespace PizzeriaFileImplement.Implements
+{
+    public class ShopStorage : IShopStorage
+    {
+        private readonly DataFileSingleton source;
+        public ShopStorage()
+        {
+            source = DataFileSingleton.GetInstance();
+        }
+        public List<ShopViewModel> GetFullList()
+        {
+            return source.Shops
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public List<ShopViewModel> GetFilteredList(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName))
+            {
+                return new();
+            }
+            return source.Shops
+                .Where(x => x.ShopName.Contains(model.ShopName))
+                .Select(x => x.GetViewModel)
+                .ToList();
+        }
+        public ShopViewModel? GetElement(ShopSearchModel model)
+        {
+            if (string.IsNullOrEmpty(model.ShopName) && !model.Id.HasValue)
+            {
+                return null;
+            }
+            return source.Shops
+            .FirstOrDefault(x =>
+                (!string.IsNullOrEmpty(model.ShopName) && x.ShopName == model.ShopName) ||
+                (model.Id.HasValue && x.Id == model.Id))?.GetViewModel;
+        }
+        public bool TrySellPizza(IPizzaModel pizza, int count)
+        {
+            int hasCount = 0;
+
+            source.Shops.ForEach(x =>
+            {
+                if (x.ShopPizzas.TryGetValue(pizza.Id, out var pair))
+                {
+                    hasCount += pair.Item2;
+                }
+            });
+
+            if (hasCount < count) return false;
+
+            source.Shops.ForEach(x =>
+            {
+                if (x.ShopPizzas.TryGetValue(pizza.Id, out var pair))
+                {
+                    if(count >= pair.Item2)
+                    {
+                        count -= pair.Item2;
+                        x.ShopPizzas[pizza.Id] = (pizza, 0);
+                    } else
+                    {
+                        x.ShopPizzas[pizza.Id] = (pizza, pair.Item2 - count);
+                        count = 0;
+                    }
+
+                    x.Update(new ShopBindingModel
+                    {
+                        Id = x.Id,
+                        Addres = x.Addres,
+                        Capacity = x.Capacity,
+                        OpenTime = x.OpenTime,
+                        ShopName = x.ShopName,
+                        ShopPizzas = x.ShopPizzas
+                    });
+                }
+            });
+
+            source.SaveShops();
+            return true;
+        }
+
+        public ShopViewModel? Insert(ShopBindingModel model)
+        {
+            model.Id = source.Shops.Count > 0 ? source.Shops.Max(x => x.Id) + 1 : 1;
+            var newShop = Shop.Create(model);
+            if (newShop == null)
+            {
+                return null;
+            }
+            source.Shops.Add(newShop);
+            source.SaveShops();
+            return newShop.GetViewModel;
+        }
+        public ShopViewModel? Update(ShopBindingModel model)
+        {
+            var shop = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (shop == null)
+            {
+                return null;
+            }
+            shop.Update(model);
+            source.SaveShops();
+            return shop.GetViewModel;
+        }
+        public ShopViewModel? Delete(ShopBindingModel model)
+        {
+            var element = source.Shops.FirstOrDefault(x => x.Id == model.Id);
+            if (element != null)
+            {
+                source.Shops.Remove(element);
+                source.SaveShops();
+                return element.GetViewModel;
+            }
+            return null;
+        }
+    }
+}

Pizzeria/PizzeriaShopFileImplement/PizzeriaFileImplement.csproj

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

Pizzeria/PizzeriaShopFileImplement/models/Component.cs

@@ -0,0 +1,59 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement.models
+{
+    public class Component : IComponentModel
+    {
+        public int Id { get; private set; }
+        public string ComponentName { get; private set; } = string.Empty;
+        public double Cost { get; set; }
+        public static Component? Create(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = model.Id,
+                ComponentName = model.ComponentName,
+                Cost = model.Cost
+            };
+        }
+        public static Component? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Component()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ComponentName = element.Element("ComponentName")!.Value,
+                Cost = Convert.ToDouble(element.Element("Cost")!.Value)
+            };
+        }
+        public void Update(ComponentBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ComponentName = model.ComponentName;
+            Cost = model.Cost;
+        }
+        public ComponentViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ComponentName = ComponentName,
+            Cost = Cost
+        };
+        public XElement GetXElement => new("Component",
+        new XAttribute("Id", Id),
+        new XElement("ComponentName", ComponentName),
+        new XElement("Cost", Cost.ToString()));
+    }
+}

Pizzeria/PizzeriaShopFileImplement/models/Order.cs

@@ -0,0 +1,105 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement.models
+{
+    public class Order : IOrderModel
+    {
+        public int PizzaId { get; private set; }
+
+        public string PizzaName
+        {
+            get
+            {
+                var source = DataFileSingleton.GetInstance();
+                return source.Pizzas.FirstOrDefault(x => x.Id == PizzaId).PizzaName;
+            }
+        }
+
+        public int Count { get; private set; }
+
+        public double Sum { get; private set; }
+
+        public OrderStatus Status { get; private set; } = OrderStatus.Неизвестен;
+
+        public DateTime DateCreate { get; private set; } = DateTime.Now;
+
+        public DateTime? DateImplement { get; private set; }
+
+        public int Id { get; private set; }
+
+        public static Order? Create(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Order()
+            {
+                Id = model.Id,
+                PizzaId = model.PizzaId,
+                Count = model.Count,
+                Sum = model.Sum,
+                Status = model.Status,
+                DateCreate = model.DateCreate,
+                DateImplement = model.DateImplement
+            };
+        }
+
+        public static Order? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Order()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PizzaId = Convert.ToInt32(element.Element("PizzaId")!.Value),
+                Count = Convert.ToInt32(element.Element("Count")!.Value),
+                Sum = Convert.ToInt32(element.Element("Sum")!.Value),
+                Status = Enum.Parse<OrderStatus>(element.Element("Status")!.Value),
+                DateCreate = DateTime.Parse(element.Element("DateCreate")!.Value),
+                DateImplement = !string.IsNullOrEmpty(element.Element("DateImplement")!.Value.ToString()) ?
+                    DateTime.Parse(element.Element("DateImplement")!.Value) : null,
+            };
+        }
+
+        public void Update(OrderBindingModel? model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PizzaId = model.PizzaId;
+            Count = model.Count;
+            Sum = model.Sum;
+            Status = model.Status;
+            DateCreate = model.DateCreate;
+            DateImplement = model.DateImplement;
+        }
+
+        public OrderViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PizzaId = PizzaId,
+            PizzaName = PizzaName,
+            Count = Count,
+            Sum = Sum,
+            Status = Status,
+            DateCreate = DateCreate,
+            DateImplement = DateImplement
+        };
+        public XElement GetXElement => new("Order",
+            new XAttribute("Id", Id),
+            new XElement("PizzaId", PizzaId),
+            new XElement("Count", Count),
+            new XElement("Sum", Sum),
+            new XElement("Status", Status),
+            new XElement("DateCreate", DateCreate),
+            new XElement("DateImplement", DateImplement));
+    }
+}

Pizzeria/PizzeriaShopFileImplement/models/Pizza.cs

@@ -0,0 +1,89 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement.models
+{
+    public class Pizza : IPizzaModel
+    {
+        public int Id { get; private set; }
+        public string PizzaName { get; private set; } = string.Empty;
+        public double Price { get; private set; }
+        public Dictionary<int, int> Components { get; private set; } = new();
+        private Dictionary<int, (IComponentModel, int)>? _pizzaComponents = null;
+        public Dictionary<int, (IComponentModel, int)> PizzaComponents
+        {
+            get
+            {
+                if (_pizzaComponents == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _pizzaComponents = Components.ToDictionary(x => x.Key, y =>
+                    ((source.Components.FirstOrDefault(z => z.Id == y.Key) as IComponentModel)!,
+                    y.Value));
+                }
+                return _pizzaComponents;
+            }
+        }
+        public static Pizza? Create(PizzaBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Pizza()
+            {
+                Id = model.Id,
+                PizzaName = model.PizzaName,
+                Price = model.Price,
+                Components = model.PizzaComponents.ToDictionary(x => x.Key, x
+               => x.Value.Item2)
+            };
+        }
+        public static Pizza? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+            return new Pizza()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                PizzaName = element.Element("PizzaName")!.Value,
+                Price = Convert.ToDouble(element.Element("Price")!.Value),
+                Components = element.Element("PizzaComponents")!.Elements("PizzaComponent")
+                    .ToDictionary(
+                        x => Convert.ToInt32(x.Element("Key")?.Value), 
+                        x => Convert.ToInt32(x.Element("Value")?.Value))
+                    };
+        }
+        public void Update(PizzaBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            PizzaName = model.PizzaName;
+            Price = model.Price;
+            Components = model.PizzaComponents.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _pizzaComponents = null;
+        }
+        public PizzaViewModel GetViewModel => new()
+        {
+            Id = Id,
+            PizzaName = PizzaName,
+            Price = Price,
+            PizzaComponents = PizzaComponents
+        };
+        public XElement GetXElement => new("Pizza",
+        new XAttribute("Id", Id),
+        new XElement("PizzaName", PizzaName),
+        new XElement("Price", Price.ToString()),
+        new XElement("PizzaComponents", Components.Select(x =>
+        new XElement("PizzaComponent",
+        new XElement("Key", x.Key),
+        new XElement("Value", x.Value)))
+        .ToArray()));
+    }
+}

Pizzeria/PizzeriaShopFileImplement/models/Shop.cs

@@ -0,0 +1,102 @@
+using PizzeriaContracts.BindingModels;
+using PizzeriaContracts.ViewModels;
+using PizzeriaDataModels;
+using System.Xml.Linq;
+
+namespace PizzeriaFileImplement.models
+{
+    public class Shop : IShopModel
+    {
+        public int Id { get; set; }
+        public string ShopName { get; set; } = string.Empty;
+        public string Addres { get; set; } = string.Empty;
+        public DateTime OpenTime { get; set; }
+        public int Capacity { get; set; }
+        public Dictionary<int, int> Pizzas { get; private set; } = new();
+        private Dictionary<int, (IPizzaModel, int)>? _shopPizzas = null;
+        public Dictionary<int, (IPizzaModel, int)> ShopPizzas
+        {
+            get
+            {
+                if (_shopPizzas == null)
+                {
+                    var source = DataFileSingleton.GetInstance();
+                    _shopPizzas = Pizzas.ToDictionary(x => x.Key, y =>
+                    ((source.Pizzas.FirstOrDefault(z => z.Id == y.Key) as IPizzaModel)!,
+                    y.Value));
+                }
+                return _shopPizzas;
+            }
+        }
+
+        public static Shop? Create(ShopBindingModel model)
+        {
+            if (model == null)
+            {
+                return null;
+            }
+            return new Shop()
+            {
+                Id = model.Id,
+                ShopName = model.ShopName,
+                Addres = model.Addres,
+                OpenTime = model.OpenTime,
+                Capacity = model.Capacity,
+                Pizzas = model.ShopPizzas.ToDictionary(x => x.Key, x => x.Value.Item2)
+            };
+        }
+        public static Shop? Create(XElement element)
+        {
+            if (element == null)
+            {
+                return null;
+            }
+
+            return new Shop()
+            {
+                Id = Convert.ToInt32(element.Attribute("Id")!.Value),
+                ShopName = element.Element("ShopName")!.Value,
+                Addres = element.Element("Addres")!.Value,
+                OpenTime = DateTime.Parse(element.Element("OpenTime")!.Value),
+                Capacity = Convert.ToInt32(element.Element("Capacity")!.Value),
+                Pizzas = element.Element("ShopPizzas")!.Elements("ShopPizza")
+                    .ToDictionary(
+                        x => Convert.ToInt32(x.Element("Key")?.Value),
+                        x => Convert.ToInt32(x.Element("Value")?.Value))
+            };
+        }
+        public void Update(ShopBindingModel model)
+        {
+            if (model == null)
+            {
+                return;
+            }
+            ShopName = model.ShopName;
+            Addres = model.Addres;
+            OpenTime = model.OpenTime;
+            Capacity = model.Capacity;
+            Pizzas = model.ShopPizzas.ToDictionary(x => x.Key, x => x.Value.Item2);
+            _shopPizzas = null;
+        }
+        public ShopViewModel GetViewModel => new()
+        {
+            Id = Id,
+            ShopName = ShopName,
+            Addres = Addres,
+            OpenTime = OpenTime,
+            Capacity = Capacity,
+            ShopPizzas = ShopPizzas
+        };
+        public XElement GetXElement => new("Shop",
+        new XAttribute("Id", Id),
+        new XElement("ShopName", ShopName),
+        new XElement("Addres", Addres),
+        new XElement("OpenTime", OpenTime),
+        new XElement("Capacity", Capacity),
+        new XElement("ShopPizzas", Pizzas.Select(x =>
+        new XElement("ShopPizza",
+        new XElement("Key", x.Key),
+        new XElement("Value", x.Value)))
+        .ToArray()));
+    }
+}