Stockinfo/StockDAL/BackupRepository.cs

using DataDomain;
using DatamodelLibrary;
using StockDAL.Interface;
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Threading.Tasks;

namespace StockDAL
{
    public class BackupRepository : IBackupRepository
    {
        public BackupRegister SaveBackupReging(BackupRegister backupRegister)
        {
            using var context = new StockContext();
            var entity = (from brr in context.BackupRegings
                          where brr.Id == backupRegister.Id
                          select brr).FirstOrDefault();
            if(entity == null)
            {
                entity = new BackupRegister
                {
                    BackedUp = DateTime.Now,
                    DbName = "Stocks.db",
                    BackupDbName = backupRegister.BackupDbName,
                    BackupPath = backupRegister.BackupPath
                };
                context.BackupRegings.Add(entity);
            }
            else
            {
                entity.BackedUp = backupRegister.BackedUp;
                entity.DbName = backupRegister.DbName;
                entity.BackupDbName = backupRegister.BackupDbName;
                entity.BackupPath = backupRegister.BackupPath;
            }

            context.SaveChanges();
            return entity;
        }

        public IEnumerable<BackupRegister> GetAllBackupRegisters()
        {
            using var context = new StockContext();
            var entities = context.BackupRegings;
            return entities.ToList();
        }
    }
}