dotNetStudyWithGPT/MySolution/EF_ChangeLog/Program.cs

using EF_ChangeLog.Controller;
using EF_ChangeLog.Model;

namespace EF_ChangeLog
{
    internal class Program
    {
        static void Main(string[] args)
        {
            using (var context = new StockDbContext())
            {
                // Create samples
                Random rand = new Random();
                List<Stock> newStocks = new List<Stock>()
                {
                    new Stock() { Name = $"Test Stock{rand.Next(1, 1000)}", Price = 1000 },
                    new Stock() { Name = $"Test Stock{rand.Next(1, 1000)}", Price = 1000 },
                    new Stock() { Name = $"Test Stock{rand.Next(1, 1000)}", Price = 1000 },
                    new Stock() { Name = $"Test Stock{rand.Next(1, 1000)}", Price = 1000 }
                };

                foreach (var newStock in newStocks)
                {
                    newStock.SaveSnapshot();
                    context.Stocks.Add(newStock);
                }
                context.SaveChanges();

                // Update sample
                var stock = context.Stocks.Find(rand.Next(1, 5));
                if (stock != null)
                {
                    stock.Price = rand.Next(1, 10) * 1000;

                    stock.SaveSnapshot();
                    context.SaveChanges();
                }

                // Delete sample
                var del = context.Stocks.OrderByDescending(s => s.Id).FirstOrDefault();
                if (del != null)
                {
                    context.Stocks.Remove(del);

                    del.SaveSnapshot();
                    context.SaveChanges();
                }
            }
        }
    }
}