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81
DataBase/ConnectDB.cs
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81
DataBase/ConnectDB.cs
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using System;
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using System.Collections.Generic;
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using System.ComponentModel.DataAnnotations;
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using System.ComponentModel.DataAnnotations.Schema;
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using System.IO;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Microsoft.EntityFrameworkCore;
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namespace Diplom_O.DataBase
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{
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public class MainDB : DbContext
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{
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public DbSet<Shtat> Shtat { get; set; }
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public DbSet<Rabotnik> Rabotniky { get; set; }
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public DbSet<Chel> Chely { get; set; }
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public MainDB()
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{
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Database.EnsureCreated();
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}
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protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
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{
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optionsBuilder.UseSqlite("Data Source=" + Directory.GetCurrentDirectory() + Path.DirectorySeparatorChar + "Diplom_O.db;");
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}
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protected override void OnModelCreating(ModelBuilder modelBuilder) { }
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}
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public class Rabotnik
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{
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[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
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public int Id { get; set; }
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[ForeignKey("Dogovor")]
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public int ChelId { get; set; }
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public Chel Chel { get; set; }
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[ForeignKey("Dogovor")]
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public int ShtatId { get; set; }
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public Shtat Shtat { get; set; }
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public string KodSotr { get; set; }
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public string Kategoriya { get; set; }
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public bool Pensiya { get; set; }
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public DateTime Start { get; set; }
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public DateTime? End { get; set; }
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}
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public class Shtat
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{
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[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
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public int Id { get; set; }
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public string Doljnost { get; set; }
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public int Size { get; set; }
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public bool Active { get; set; }
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}
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public class Chel
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{
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[Key, DatabaseGenerated(DatabaseGeneratedOption.Identity)]
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public int Id { get; set; }
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public string FName { get; set; }
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public string SName { get; set; }
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public string TName { get; set; }
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public bool Male { get; set; }
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public DateTime Birthday { get; set; }
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public string Address { get; set; }
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public string INN { get; set; }
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public string SNILS { get; set; }
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public string Pasport { get; set; }
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public List<Rabotnik> Rabota { get; set; }
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}
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}
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133
DataBase/FuncDB.cs
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133
DataBase/FuncDB.cs
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@@ -0,0 +1,133 @@
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using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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namespace Diplom_O.DataBase
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{
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public static class FuncDB
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{
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public static void ChkShtat(Shtat obj)
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{
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try
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{
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if (string.IsNullOrEmpty(obj.Doljnost)) throw new Exception("Пустая должность.");
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if (obj.Size <= 0) throw new Exception("Количество мест <= 0.");
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}
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catch { throw; }
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}
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public static Shtat GetShtat(int id)
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{
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try
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{
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using (var db = new MainDB())
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{
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var res = from a in db.Shtat
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where a.Id == id
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select a;
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try { return res.Single(); }
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catch { return null; }
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}
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}
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catch { throw; }
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}
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public static (Shtat shtat, int ost)[] ListShtat(string filter = null)
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{
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try
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{
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using (var db = new MainDB())
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{
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var f = (string.IsNullOrEmpty(filter)) ? "" : filter.ToLower();
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var shtat = (string.IsNullOrEmpty(f)) ?
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(from a in db.Shtat
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where a.Active
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select a).ToArray() :
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(from a in db.Shtat
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where a.Doljnost.ToLower().Contains(f) && a.Active
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select a).ToArray();
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var res = new List<(Shtat shtat, int ost)>();
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for(var i = 0; i < shtat.Length; i++)
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res.Add((shtat[i], shtat[i].Size - BusySizeShtat(shtat[i].Id)));
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return res.ToArray();
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}
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}
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catch { throw; }
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}
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public static void AddShtat(Shtat obj)
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{
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try
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{
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ChkShtat(obj);
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if (HaveDoljFromShtat(obj.Doljnost)) throw new Exception("Должность существует.");
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using (var db = new MainDB())
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{
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obj.Active = true;
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db.Shtat.Add(obj);
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db.SaveChanges();
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}
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}
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catch { throw; }
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}
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public static void ChangeShtat(Shtat obj)
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{
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try
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{
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ChkShtat(obj);
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if (GetShtat(obj.Id) == null) throw new Exception("Должность не существует.");
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if (GetShtat(obj.Id).Doljnost != obj.Doljnost && HaveDoljFromShtat(obj.Doljnost)) throw new Exception("Должность существует.");
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if (obj.Size < BusySizeShtat(obj.Id)) throw new Exception("Занятых мест больше > указанных.");
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using (var db = new MainDB())
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{
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db.Shtat.Update(obj);
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db.SaveChanges();
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}
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}
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catch { throw; }
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}
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public static void DelShtat(Shtat obj)
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{
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try
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{
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ChkShtat(obj);
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if (GetShtat(obj.Id) == null) throw new Exception("Должность не существует.");
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if (BusySizeShtat(obj.Id) > 0) throw new Exception("Есть занятые места.");
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obj.Active = false;
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using (var db = new MainDB())
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{
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db.Shtat.Update(obj);
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db.SaveChanges();
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}
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}
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catch { throw; }
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}
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public static int BusySizeShtat(int id)
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{
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try
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{
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using (var db = new MainDB())
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{
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var res = (from a in db.Rabotniky
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where a.ShtatId == id && !a.End.HasValue
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select a).ToArray();
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return res.Length;
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}
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}
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catch { throw; }
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}
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public static bool HaveDoljFromShtat(string dolj)
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{
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try
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{
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using (var db = new MainDB())
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{
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var chkDolj = from a in db.Shtat
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where a.Doljnost == dolj && a.Active
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select a;
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return chkDolj.Count() > 0;
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}
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}
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catch { throw; }
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}
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}
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}
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