private static void CreateDatabase()
{
using (var context = new MenusContext())
{
var created = context.Database.EnsureCreated();
}
}
private static void UpdateDemo()
{
using (var context = new MenusContext())
{
Menu m1 = context.Menus.FirstOrDefault();
m1.Subtitle = "changed";
context.SaveChanges();
}
}
//private static void CreateMenus()
//{
// using (var context = new MenusContext())
// {
// var card1 = new MenuCard
// {
// Title = "Veggie"
// };
// //context.MenuCards.Add(card1);
// var menu1 = new Menu
// {
// MenuCard = card1,
// Title = "Ravioli mit Spinat-Mascaponefülle",
// Subtitle = "in Kräutersauce, dazu Salat"
// };
// context.Menus.Add(menu1);
// context.SaveChanges();
// }
//}
private static void CreateMenus()
{
using (var context = new MenusContext())
{
var card1 = new MenuCard
{
Title = "Veggie"
};
//context.MenuCards.Add(card1);
var menu1 = new Menu("Gemüsegulasch", "mit Kartoffelknödel", card1);
context.Menus.Add(menu1);
context.SaveChanges();
}
}
private static void TrackingDemo()
{
int a = 3;
string s1 = string.Format("abc {0}", a);
string s2 = $"abc {a}";
FormattableString s3 = $"abc {a}";
using (var context = new MenusContext())
{
context.ChangeTracker.QueryTrackingBehavior = QueryTrackingBehavior.NoTracking;
var m1 = context.Menus.Where(m => m.Title.StartsWith("Gemüse")).FirstOrDefault();
var m2 = context.Menus.Where(m => m.Subtitle.StartsWith("mit")).FirstOrDefault();
if (m1 == m2)
{
Console.WriteLine("the same object");
}
else
{
Console.WriteLine("not the same object");
}
}
}