private static DBAppliedMigration[] FindMigrationsNotInInstance(DBAppliedMigration[] migrations1, DBAppliedMigration[] migrations2)
{
List<DBAppliedMigration> result = new List<DBAppliedMigration>();
foreach (DBAppliedMigration appliedMig2 in migrations2)
{
bool found = false;
foreach (DBAppliedMigration appliedMig1 in migrations1)
{
if (appliedMig1.MigrationId == appliedMig2.MigrationId)
{
found = true;
}
}
if (!found)
{
result.Add(appliedMig2);
}
}
return result.ToArray();
}
public DBAppliedMigration[] GetAppliedMigrations(Instance instance)
{
List<DBAppliedMigration> result = new List<DBAppliedMigration>();
using (SqlConnection connection = new SqlConnection(connectionStringProvider.GetConnectionString(instance)))
{
connection.Open();
using (SqlCommand cmd = new SqlCommand(@"SELECT [Id]
,[Executed_at]
,[Executed_by]
,[MigrateScript]
,[RollbackScript]
,[Migration_id]
FROM [DBAppliedMigrations]
ORDER BY [Executed_at] DESC", connection))
{
using (SqlDataReader reader = cmd.ExecuteReader())
{
while (reader.Read())
{
DBAppliedMigration appliedMig = new DBAppliedMigration();
appliedMig.Id = reader.GetInt32(0);
appliedMig.At = reader.GetDateTime(1);
appliedMig.By = reader.GetString(2);
appliedMig.MigrateScript = reader.GetString(3);
appliedMig.RollbackScript = reader.GetString(4);
appliedMig.MigrationId = reader.GetInt32(5);
result.Add(appliedMig);
}
}
}
}
return result.ToArray();
}
private void SyncApplyMigration(Migration migration, Instance instance, Execution execution)
{
try
{
execution.AppendLog("Generating rollback scripts...");
execution.UpdateAndFlush();
string rollbackScript = scriptsGenerator.GenerateRollbackScript(migration, instance);
execution.AppendLog(string.Concat(Environment.NewLine, rollbackScript, Environment.NewLine));
execution.UpdateAndFlush();
execution.AppendLog("Generating migrate scripts...");
execution.UpdateAndFlush();
string migrateScript = scriptsGenerator.GenerateMigrateScript(migration, instance);
execution.AppendLog(string.Concat(Environment.NewLine, migrateScript, Environment.NewLine));
execution.UpdateAndFlush();
execution.AppendLog("Migrating...");
execution.UpdateAndFlush();
using (SqlConnection conn = new SqlConnection(connectionStringProvider.GetConnectionString(instance)))
{
conn.Open();
conn.InfoMessage += new SqlInfoMessageEventHandler(delegate(object sender, SqlInfoMessageEventArgs e)
{
execution.AppendLog(e.Message);
execution.UpdateAndFlush();
});
using (System.Transactions.TransactionScope transaction = new System.Transactions.TransactionScope())
{
List<string> sqlStatements = GetSqlStatements(migrateScript);
foreach (string statement in sqlStatements)
{
using (SqlCommand cmd = new SqlCommand(statement, conn))
{
cmd.ExecuteNonQuery();
}
}
execution.AppendLog("Scripts completed. Writing migration audit...");
execution.UpdateAndFlush();
DBAppliedMigration appliedMigration = new DBAppliedMigration(execution);
appliedMigration.MigrateScript = migrateScript;
appliedMigration.RollbackScript = rollbackScript;
migrationTablesManager.WriteSuccessfullMigration(appliedMigration, conn);
transaction.Complete();
}
}
execution.AppendLog("Migration ended with success!");
execution.ExecutionState = ExecutionState.Completed;
execution.UpdateAndFlush();
}
catch (Exception ex)
{
execution.AppendLogException(ex);
execution.UpdateAndFlush();
}
}
public void WriteSuccessfullMigration(DBAppliedMigration appliedMigration, System.Data.IDbConnection openConnection)
{
using (SqlCommand cmd = new SqlCommand(@"INSERT INTO [DBAppliedMigrations]
([Executed_at]
,[Executed_by]
,[MigrateScript]
,[RollbackScript]
,[Migration_id])
VALUES
(@executedAt
,@executedBy
,@migrateScript
,@rollbackScript
,@migrationId)", (SqlConnection)openConnection))
{
cmd.Parameters.Add(new SqlParameter("executedAt", appliedMigration.At));
cmd.Parameters.Add(new SqlParameter("executedBy", appliedMigration.By));
cmd.Parameters.Add(new SqlParameter("migrateScript", appliedMigration.MigrateScript));
cmd.Parameters.Add(new SqlParameter("rollbackScript", appliedMigration.RollbackScript ?? string.Empty));
cmd.Parameters.Add(new SqlParameter("migrationId", appliedMigration.MigrationId));
cmd.ExecuteNonQuery();
}
}
