public void GraphNewAndExistingEntities() { using (SakilaLiteUpdateContext context = new SakilaLiteUpdateContext()) { context.InitContext(); Actor actorNoId, actor; context.Attach(actorNoId = new Actor { FirstName = "PENELOPE", LastName = "GUINESS" }); context.Attach(actor = new Actor { ActorId = 21, FirstName = "KIRSTEN", LastName = "PALTROW" }); var changes = context.ChangeTracker.Entries(); Assert.Equal(2, changes.Count()); Assert.Collection(changes, item => { Assert.Equal(EntityState.Added, item.State); }, item => { Assert.Equal(EntityState.Unchanged, item.State); }); context.SaveChanges(); var list = context.Actor.ToList(); Assert.Equal(1, list.Count); } }
public void GraphNewAndExistingEntities() { using (SakilaLiteUpdateContext context = new SakilaLiteUpdateContext()) { context.InitContext(); Actor actorNoId, actor; context.Attach(actorNoId = new Actor { FirstName = "PENELOPE", LastName = "GUINESS" }); context.Attach(actor = new Actor { ActorId = 21, FirstName = "KIRSTEN", LastName = "PALTROW" }); var changes = context.ChangeTracker.Entries(); Assert.AreEqual(2, changes.Count()); Assert.That(changes.Select(c => c.State), Has.Exactly(1).Matches <EntityState>(state => state.Equals(EntityState.Added))); Assert.That(changes.Select(c => c.State), Has.Exactly(1).Matches <EntityState>(state => state.Equals(EntityState.Unchanged))); context.SaveChanges(); var list = context.Actor.ToList(); Assert.AreEqual(1, list.Count); } }
public void StringInterpolationInSqlCommands() { using (SakilaLiteUpdateContext context = new SakilaLiteUpdateContext()) { context.InitContext(); int id = 1; string firstName = "PENELOPE"; string lastName = "GUINESS"; DateTime lastUpdate = DateTime.Parse("2006-02-15 04:34:33"); context.Database.ExecuteSqlCommand($"INSERT INTO actor(actor_id, first_name, last_name, last_update) VALUES ({id}, {firstName}, {lastName}, {lastUpdate:u})"); Actor actor = context.Set <Actor>().FromSql($"SELECT * FROM actor WHERE actor_id={id} and last_name={lastName}").First(); Assert.Equal(id, actor.ActorId); Assert.Equal(firstName, actor.FirstName); } }
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); MySqlTrace.LogInformation(9966, "EF Model CREATED"); } 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(); } } }