public virtual MigrationTracker RecordMigration(Migration migration)
{
if (!MigrationTableExists())
{
Init();
}
connection.Open();
var cmd = GetMigrationCmd(migration);
cmd.ExecuteNonQuery();
connection.Close();
return Create();
}
protected abstract IDbCommand GetMigrationCmd(Migration migration);
public virtual MigrationTracker ExecuteUp(Migration migration)
{
if (!MigrationTableExists())
Init();
connection.Open();
using (var trans = connection.BeginTransaction(IsolationLevel.ReadUncommitted))
{
var split = new Regex(delimiter, RegexOptions.Multiline | RegexOptions.IgnoreCase);
var statements = split.Split(migration.UpSql);
foreach (var sql in statements)
{
if (!string.IsNullOrWhiteSpace(sql))
{
var cmd = connection.CreateCommand();
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
}
}
IDbCommand migrationCmd = GetMigrationCmd(migration);
migrationCmd.Transaction = trans;
migrationCmd.ExecuteNonQuery();
trans.Commit();
}
connection.Close(); ;
return Create();
}
public virtual MigrationTracker ExecuteDown(Migration migration)
{
if (!MigrationTableExists())
Init();
connection.Open();
using (var trans = connection.BeginTransaction())
{
var split = new Regex(delimiter, RegexOptions.Multiline | RegexOptions.IgnoreCase);
foreach (var sql in split.Split(migration.DownSql))
{
if (!string.IsNullOrEmpty(sql))
{
var cmd = connection.CreateCommand();
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
}
}
var migrationCmd = connection.CreateCommand();
migrationCmd.Transaction = trans;
migrationCmd.CommandText = string.Format("delete from {0} where [key] = @version", tableName);
var version = migrationCmd.CreateParameter();
version.ParameterName = "version";
version.Value = migration.Version;
migrationCmd.Parameters.Add(version);
migrationCmd.ExecuteNonQuery();
trans.Commit();
}
connection.Close();
return Create();
}
public MigrationException(Migration migration, MigrationDirection direction, Exception ex)
{
this.migration = migration;
this.direction = direction;
this.ex = ex;
}
protected override IDbCommand GetMigrationCmd(Migration migration)
{
var migrationCmd = (SqlCommand)connection.CreateCommand();
migrationCmd.CommandText = string.Format("insert into {0} VALUES(@key, @hash)", tableName);
migrationCmd.Parameters.AddWithValue("@key", migration.Version);
migrationCmd.Parameters.AddWithValue("@hash", migration.Hash);
return migrationCmd;
}
public virtual MigrationTracker ExecuteUp(Migration migration)
{
if (!MigrationTableExists())
Init();
connection.Open();
using (var trans = connection.BeginTransaction(IsolationLevel.ReadUncommitted))
{
var split = new Regex(delimiter, RegexOptions.Multiline | RegexOptions.IgnoreCase);
var statements = split.Split(migration.UpSql);
foreach (var sql in statements)
{
if (string.IsNullOrWhiteSpace(sql))
continue;
try
{
var cmd = connection.CreateCommand();
cmd.Transaction = trans;
cmd.CommandText = sql;
cmd.ExecuteNonQuery();
}
catch (Exception)
{
System.Diagnostics.Debug.WriteLine("Fail executing sql -> {0}", sql);
throw;
}
}
var migrationCmd = GetMigrationCmd(migration);
migrationCmd.Transaction = trans;
migrationCmd.ExecuteNonQuery();
trans.Commit();
}
connection.Close(); ;
return Create();
}