feat: мультироль

backend/UniVerse.Infrastructure/Migrations/20260511011508_UserRolesJoinTable.cs

@@ -0,0 +1,65 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+
+#nullable disable
+
+namespace UniVerse.Infrastructure.Migrations
+{
+    /// <inheritdoc />
+    public partial class UserRolesJoinTable : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "user_roles",
+                columns: table => new
+                {
+                    user_id = table.Column<int>(type: "integer", nullable: false),
+                    role = table.Column<int>(type: "integer", nullable: false)
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("PK_user_roles", x => new { x.user_id, x.role });
+                    table.ForeignKey(
+                        name: "FK_user_roles_users_user_id",
+                        column: x => x.user_id,
+                        principalTable: "users",
+                        principalColumn: "id",
+                        onDelete: ReferentialAction.Cascade);
+                });
+
+            migrationBuilder.Sql("""
+                INSERT INTO user_roles (user_id, role)
+                SELECT id, role FROM users;
+                """);
+
+            migrationBuilder.DropColumn(
+                name: "role",
+                table: "users");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<int>(
+                name: "role",
+                table: "users",
+                type: "integer",
+                nullable: false,
+                defaultValue: 0);
+
+            migrationBuilder.Sql("""
+                UPDATE users
+                SET role = COALESCE((
+                    SELECT MIN(ur.role)
+                    FROM user_roles ur
+                WHERE ur.user_id = users.id
+                ), 0);
+                """);
+
+            migrationBuilder.DropTable(
+                name: "user_roles");
+
+        }
+    }
+}