Diplom_O/DataBase/ConnectDB.cs

using System;
using System.Collections.Generic;
using System.ComponentModel.DataAnnotations;
using System.ComponentModel.DataAnnotations.Schema;
using System.IO;
using System.Linq;
using System.Text;
using System.Threading.Tasks;
using Microsoft.EntityFrameworkCore;

namespace Diplom_O.DataBase
{
	public class MainDB : DbContext
	{
		public DbSet<Shtat> Shtat { get; set; }
		public DbSet<Rabotnik> Rabotniky { get; set; }
		public DbSet<Chel> Chely { get; set; }

		public MainDB()
		{
			Database.EnsureCreated();
		}

		protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
		{
			optionsBuilder.UseSqlite("Data Source=" + Directory.GetCurrentDirectory() + Path.DirectorySeparatorChar + "Diplom_O.db;");
		}
		protected override void OnModelCreating(ModelBuilder modelBuilder) { }

	}
	public class Rabotnik
	{
		[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
		public int Id { get; set; }
		[ForeignKey("Chel")]
		public int ChelId { get; set; }
		public Chel Chel { get; set; }
		[ForeignKey("Shtat")]
		public int ShtatId { get; set; }
		public Shtat Shtat { get; set; }

		public string KodSotr { get; set; }
		public string Kategoriya { get; set; }
		public bool Pensiya { get; set; }

		public DateTime Start { get; set; }
		public DateTime? End { get; set; }

	}

	public class Shtat
	{
		[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
		public int Id { get; set; }
		public string Doljnost { get; set; }
		public int Size { get; set; }
		public bool Active { get; set; }
	}
	public class Chel
	{
		[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
		public int Id { get; set; }
		public string FName { get; set; }
		public string SName { get; set; }
		public string TName { get; set; }
		public bool Male { get; set; }
		public DateTime Birthday { get; set; }
		public string Address { get; set; }
		public string INN { get; set; }
		public string SNILS { get; set; }
		public string Pasport { get; set; }
		public List<Rabotnik> Rabota { get; set; }
	}




}