private void PopulateData()
{
using (BodyShopContext context = new BodyShopContext())
{
// Clean databases
context.Database.EnsureDeleted();
MySQLTestStore.DeleteDatabase("01cars");
MySQLTestStore.DeleteDatabase("02bodyshops");
MySQLTestStore.DeleteDatabase("03employees");
context.Database.EnsureCreated();
context.BodyShop.AddRange(new BodyShop
{
Name = "Western Collision Works",
City = "Hollywood",
State = "California",
Brand = "Chevrolet"
},
new BodyShop
{
Name = "Yosemite Auto Body Shop",
City = "Pico-Union",
State = "California",
Brand = "Ford"
});
context.Car.AddRange(new Car
{
LicensePlate = "ATD 427",
Make = "Chevrolet",
Model = "Cruze",
State = "New"
},
new Car
{
LicensePlate = "TJC 265",
Make = "Fore",
Model = "Escape",
State = "Used"
});
context.Employee.AddRange(new Employee
{
FirstName = "Jonh",
LastName = "Doe",
DisplayName = "Jonhy",
Timestamp = DateTime.Now
},
new Employee
{
FirstName = "Maurice",
LastName = "Kent",
DisplayName = "Mau",
Timestamp = DateTime.Now
});
context.SaveChanges();
}
}
protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)
{
// get the class name of the caller to get a unique name for the database
if (!optionsBuilder.IsConfigured ||
optionsBuilder.Options.FindExtension <MySQLOptionsExtension>() == null)
{
optionsBuilder.UseMySQL(MySQLTestStore.GetContextConnectionString(this.GetType()));
}
}
public void CanUseOptionsInDbContextCtor()
{
using (var context = new OptionsContext(new DbContextOptions <OptionsContext>(),
new MySqlConnection(MySQLTestStore.CreateConnectionString("db-optionsindbcontext"))))
{
context.Database.EnsureCreated();
Assert.True(context.Blogs.Count() == 0);
context.Database.EnsureDeleted();
}
}
public void TransactionScopeTest()
{
using (var context = new SakilaLiteUpdateContext())
{
context.InitContext(false);
}
using (TransactionScope scope = new TransactionScope(TransactionScopeOption.Required,
new TransactionOptions {
IsolationLevel = IsolationLevel.ReadCommitted
}))
{
using (MySqlConnection connection = new MySqlConnection(MySQLTestStore.GetContextConnectionString <SakilaLiteUpdateContext>()))
{
connection.Open();
MySqlCommand command = connection.CreateCommand();
command.CommandText = "DELETE FROM actor";
command.ExecuteNonQuery();
var options = new DbContextOptionsBuilder <SakilaLiteUpdateContext>()
.UseMySQL(connection)
.Options;
using (TransactionScope innerScope = new TransactionScope(TransactionScopeOption.Required))
{
using (var context = new SakilaLiteUpdateContext(options))
{
context.Actor.Add(new Actor
{
FirstName = "PENELOPE",
LastName = "GUINESS"
});
context.SaveChanges();
innerScope.Complete();
}
}
// Commit transaction if all commands succeed, transaction will auto-rollback
// when disposed if either commands fails
scope.Complete();
}
}
}
public void TransactionTest()
{
using (var context = new SakilaLiteUpdateContext())
{
context.InitContext(false);
}
using (MySqlConnection connection = new MySqlConnection(MySQLTestStore.GetContextConnectionString <SakilaLiteUpdateContext>()))
{
connection.Open();
using (MySqlTransaction transaction = connection.BeginTransaction())
{
MySqlCommand command = connection.CreateCommand();
command.CommandText = "DELETE FROM actor";
command.ExecuteNonQuery();
var options = new DbContextOptionsBuilder <SakilaLiteUpdateContext>()
.UseMySQL(connection)
.Options;
using (var context = new SakilaLiteUpdateContext(options))
{
context.Database.UseTransaction(transaction);
context.Actor.Add(new Actor
{
FirstName = "PENELOPE",
LastName = "GUINESS"
});
context.SaveChanges();
}
transaction.Commit();
}
}
}