feat(backend): global notices

Foxnouns.Backend/Database/Migrations/20250329131053_AddNotices.cs

@@ -0,0 +1,56 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using NodaTime;
+
+#nullable disable
+
+namespace Foxnouns.Backend.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddNotices : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.CreateTable(
+                name: "notices",
+                columns: table => new
+                {
+                    id = table.Column<long>(type: "bigint", nullable: false),
+                    message = table.Column<string>(type: "text", nullable: false),
+                    start_time = table.Column<Instant>(
+                        type: "timestamp with time zone",
+                        nullable: false
+                    ),
+                    end_time = table.Column<Instant>(
+                        type: "timestamp with time zone",
+                        nullable: false
+                    ),
+                    author_id = table.Column<long>(type: "bigint", nullable: false),
+                },
+                constraints: table =>
+                {
+                    table.PrimaryKey("pk_notices", x => x.id);
+                    table.ForeignKey(
+                        name: "fk_notices_users_author_id",
+                        column: x => x.author_id,
+                        principalTable: "users",
+                        principalColumn: "id",
+                        onDelete: ReferentialAction.Cascade
+                    );
+                }
+            );
+
+            migrationBuilder.CreateIndex(
+                name: "ix_notices_author_id",
+                table: "notices",
+                column: "author_id"
+            );
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.DropTable(name: "notices");
+        }
+    }
+}