tnsu-approval-route/backend/Tnsu.ApprovalRoute.Infrastructure/Persistence/Migrations/20260817102423_AddListPartitioning.cs

using System;
using Microsoft.EntityFrameworkCore.Migrations;
using Npgsql.EntityFrameworkCore.PostgreSQL.Metadata;

#nullable disable

namespace Tnsu.ApprovalRoute.Infrastructure.Persistence.Migrations
{
    /// <inheritdoc />
    public partial class AddListPartitioning : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.AddColumn<DateTimeOffset>(
                name: "list_partitioning_started_at",
                table: "request_types",
                type: "timestamp with time zone",
                nullable: true);

            migrationBuilder.CreateTable(
                name: "request_list_partitions",
                columns: table => new
                {
                    id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    request_type_id = table.Column<int>(type: "integer", nullable: false),
                    number = table.Column<int>(type: "integer", nullable: false),
                    list_id = table.Column<string>(type: "character varying(512)", maxLength: 512, nullable: false),
                    title = table.Column<string>(type: "character varying(512)", maxLength: 512, nullable: true),
                    created_at = table.Column<DateTimeOffset>(type: "timestamp with time zone", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("pk_request_list_partitions", x => x.id);
                    table.ForeignKey(
                        name: "fk_request_list_partitions_request_types_request_type_id",
                        column: x => x.request_type_id,
                        principalTable: "request_types",
                        principalColumn: "id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateIndex(
                name: "ix_request_list_partitions_request_type_id_number",
                table: "request_list_partitions",
                columns: new[] { "request_type_id", "number" },
                unique: true);
        }

        /// <inheritdoc />
        protected override void Down(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.DropTable(
                name: "request_list_partitions");

            migrationBuilder.DropColumn(
                name: "list_partitioning_started_at",
                table: "request_types");
        }
    }
}