presence/data/Migrations/20241120062915_InitialCreate.cs

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

#nullable disable

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

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

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

            migrationBuilder.CreateTable(
                name: "Students",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    LastName = table.Column<string>(type: "text", nullable: false),
                    FirstName = table.Column<string>(type: "text", nullable: false),
                    Patronymic = table.Column<string>(type: "text", nullable: false),
                    GroupId = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Students", x => x.Id);
                    table.ForeignKey(
                        name: "FK_Students_Groups_GroupId",
                        column: x => x.GroupId,
                        principalTable: "Groups",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateTable(
                name: "StudentGroupsSubjects",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    GroupId = table.Column<int>(type: "integer", nullable: false),
                    SemesterStart = table.Column<int>(type: "integer", nullable: false),
                    SemesterEnd = table.Column<int>(type: "integer", nullable: false),
                    SubjectId = table.Column<int>(type: "integer", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_StudentGroupsSubjects", x => x.Id);
                    table.ForeignKey(
                        name: "FK_StudentGroupsSubjects_Groups_GroupId",
                        column: x => x.GroupId,
                        principalTable: "Groups",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                    table.ForeignKey(
                        name: "FK_StudentGroupsSubjects_Subjects_SubjectId",
                        column: x => x.SubjectId,
                        principalTable: "Subjects",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateTable(
                name: "Diaries",
                columns: table => new
                {
                    Id = table.Column<int>(type: "integer", nullable: false)
                        .Annotation("Npgsql:ValueGenerationStrategy", NpgsqlValueGenerationStrategy.IdentityByDefaultColumn),
                    DiaryText = table.Column<string>(type: "text", nullable: false),
                    TrafficId = table.Column<int>(type: "integer", nullable: false),
                    StudentGroupSubjectId = table.Column<int>(type: "integer", nullable: false),
                    NumberSubject = table.Column<int>(type: "integer", nullable: false),
                    Date = table.Column<DateOnly>(type: "date", nullable: false)
                },
                constraints: table =>
                {
                    table.PrimaryKey("PK_Diaries", x => x.Id);
                    table.ForeignKey(
                        name: "FK_Diaries_StudentGroupsSubjects_StudentGroupSubjectId",
                        column: x => x.StudentGroupSubjectId,
                        principalTable: "StudentGroupsSubjects",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                    table.ForeignKey(
                        name: "FK_Diaries_Traffics_TrafficId",
                        column: x => x.TrafficId,
                        principalTable: "Traffics",
                        principalColumn: "Id",
                        onDelete: ReferentialAction.Cascade);
                });

            migrationBuilder.CreateIndex(
                name: "IX_Diaries_StudentGroupSubjectId",
                table: "Diaries",
                column: "StudentGroupSubjectId");

            migrationBuilder.CreateIndex(
                name: "IX_Diaries_TrafficId",
                table: "Diaries",
                column: "TrafficId");

            migrationBuilder.CreateIndex(
                name: "IX_StudentGroupsSubjects_GroupId",
                table: "StudentGroupsSubjects",
                column: "GroupId");

            migrationBuilder.CreateIndex(
                name: "IX_StudentGroupsSubjects_SubjectId",
                table: "StudentGroupsSubjects",
                column: "SubjectId");

            migrationBuilder.CreateIndex(
                name: "IX_Students_GroupId",
                table: "Students",
                column: "GroupId");
        }

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

            migrationBuilder.DropTable(
                name: "Students");

            migrationBuilder.DropTable(
                name: "StudentGroupsSubjects");

            migrationBuilder.DropTable(
                name: "Traffics");

            migrationBuilder.DropTable(
                name: "Groups");

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