Refactor. Add data layer

BudgetApp.Data/Migrations/AddRecurringTransactions.cs

@@ -0,0 +1,69 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace BudgetApp.Data.Migrations;
+
+/// <inheritdoc />
+public partial class AddRecurringTransactions : Migration
+{
+    /// <inheritdoc />
+    protected override void Up(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.AddColumn<int>(
+            name: "ParentTransactionId",
+            table: "Transactions",
+            type: "INTEGER",
+            nullable: true);
+
+        migrationBuilder.AddColumn<DateTime>(
+            name: "RecurrenceEndDate",
+            table: "Transactions",
+            type: "TEXT",
+            nullable: true);
+
+        migrationBuilder.AddColumn<int>(
+            name: "RecurrenceType",
+            table: "Transactions",
+            type: "INTEGER",
+            nullable: false,
+            defaultValue: 0);
+
+        migrationBuilder.CreateIndex(
+            name: "IX_Transactions_ParentTransactionId",
+            table: "Transactions",
+            column: "ParentTransactionId");
+
+        migrationBuilder.AddForeignKey(
+            name: "FK_Transactions_Transactions_ParentTransactionId",
+            table: "Transactions",
+            column: "ParentTransactionId",
+            principalTable: "Transactions",
+            principalColumn: "Id",
+            onDelete: ReferentialAction.SetNull);
+    }
+
+    /// <inheritdoc />
+    protected override void Down(MigrationBuilder migrationBuilder)
+    {
+        migrationBuilder.DropForeignKey(
+            name: "FK_Transactions_Transactions_ParentTransactionId",
+            table: "Transactions");
+
+        migrationBuilder.DropIndex(
+            name: "IX_Transactions_ParentTransactionId",
+            table: "Transactions");
+
+        migrationBuilder.DropColumn(
+            name: "ParentTransactionId",
+            table: "Transactions");
+
+        migrationBuilder.DropColumn(
+            name: "RecurrenceEndDate",
+            table: "Transactions");
+
+        migrationBuilder.DropColumn(
+            name: "RecurrenceType",
+            table: "Transactions");
+    }
+}