PIbd-22-Ismailov_SUBD/BlogDataModels/BlogDatabaseImplement/Migrations/20230518164254_Start.cs

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

#nullable disable

namespace BlogDatabaseImplement.Migrations
{
    /// <inheritdoc />
    public partial class Start : Migration
    {
        /// <inheritdoc />
        protected override void Up(MigrationBuilder migrationBuilder)
        {
            migrationBuilder.CreateTable(
                name: "Tags",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    Name = table.Column<string>(type: "text", nullable: false),
                    NewsId = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Tags", x => x.Id);
                });

            migrationBuilder.CreateTable(
                name: "Users",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    Name = table.Column<string>(type: "text", nullable: false),
                    DateCreate = table.Column<string>(type: "text", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Users", x => x.Id);
                });

            migrationBuilder.CreateTable(
                name: "News",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    Title = table.Column<string>(type: "text", nullable: false),
                    Text = table.Column<string>(type: "text", nullable: false),
                    UserId = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_News", x => x.Id);
                    table.ForeignKey(
                        name: "FK_News_Users_UserId",
                        column: x => x.UserId,
                        principalTable: "Users",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateTable(
                name: "Comments",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    Text = table.Column<string>(type: "text", nullable: false),
                    NewsId = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Comments", x => x.Id);
                    table.ForeignKey(
                        name: "FK_Comments_News_NewsId",
                        column: x => x.NewsId,
                        principalTable: "News",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateTable(
                name: "NewsTags",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    NewsId = table.Column<int>(type: "integer", nullable: false),
                    TagId = table.Column<int>(type: "integer", nullable: false),
                    Count = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_NewsTags", x => x.Id);
                    table.ForeignKey(
                        name: "FK_NewsTags_News_NewsId",
                        column: x => x.NewsId,
                        principalTable: "News",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                    table.ForeignKey(
                        name: "FK_NewsTags_Tags_TagId",
                        column: x => x.TagId,
                        principalTable: "Tags",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateIndex(
                name: "IX_Comments_NewsId",
                table: "Comments",
                column: "NewsId");

            migrationBuilder.CreateIndex(
                name: "IX_News_UserId",
                table: "News",
                column: "UserId");

            migrationBuilder.CreateIndex(
                name: "IX_NewsTags_NewsId",
                table: "NewsTags",
                column: "NewsId");

            migrationBuilder.CreateIndex(
                name: "IX_NewsTags_TagId",
                table: "NewsTags",
                column: "TagId");
        }

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

            migrationBuilder.DropTable(
                name: "NewsTags");

            migrationBuilder.DropTable(
                name: "News");

            migrationBuilder.DropTable(
                name: "Tags");

            migrationBuilder.DropTable(
                name: "Users");
        }
    }
}