public static void CreateDbStructure(DbConnection conn, ISqlDialect dialect)
{
if (dialect.DialectCaps.NestedTransactions)
{
using (DbTransaction tran = conn.BeginTransaction())
{
try
{
DbConnectionExtension.ExecuteScalar(conn, "SELECT COUNT(*) FROM d2dx_info", tran);
}
catch (Exception)
{
TestAllowCreateStructure();
DbConnectionExtension.ExecuteNonQueries(conn, DatAdmin.DataSources.D2DX.SqlScripts.update_01, dialect, tran, null);
}
tran.Commit();
}
}
else
{
try
{
DbConnectionExtension.ExecuteScalar(conn, "SELECT COUNT(*) FROM d2dx_info");
}
catch (Exception)
{
TestAllowCreateStructure();
DbConnectionExtension.ExecuteNonQueries(conn, DatAdmin.DataSources.D2DX.SqlScripts.update_01, dialect);
}
}
// handle higher versions
ProcesssUpdate(2, DatAdmin.DataSources.D2DX.SqlScripts.update_02, conn, dialect);
}
private void SaveFile(string dbname, int folderid, string filename, string data, string type)
{
m_conn.SystemConnection.SafeChangeDatabase(dbname);
WantStructure(true);
RemoveFile(dbname, folderid, filename);
using (DbCommand cmd = m_conn.SystemConnection.CreateCommand())
{
int? lastid = DbConnectionExtension.ExecuteScalar <int?>(m_conn.SystemConnection, "SELECT MAX(id) FROM d2dx_file");
int id = lastid == null ? 1 : lastid.Value + 1;
string sqlpar, formpar;
m_conn.Dialect.CreateNamedParameter("p1", out sqlpar, out formpar);
cmd.CommandText = String.Format("INSERT INTO d2dx_file (id, folder_id, file_name, data_type, file_data) VALUES ({0}, {1}, '{2}', '{3}', {4})", id, folderid, filename, type, sqlpar);
DbParameter dbpar = m_conn.DbFactory.CreateParameter();
dbpar.ParameterName = formpar;
dbpar.Value = data;
cmd.Parameters.Add(dbpar);
cmd.ExecuteNonQuery();
}
//using (DbCommand cmd = m_conn.SystemConnection.CreateCommand())
//{
// DbParameter par = m_conn.DbFactory.CreateParameter();
// string sqlpar, formpar;
// m_conn.Dialect.CreateNamedParameter("p1", out sqlpar, out formpar);
// cmd.CommandText = String.Format("UPDATE d2dx_file SET data_type='{0}', file_data={1} WHERE folder_id={2} AND file_name='{3}'", type, sqlpar, folderid, filename);
// DbParameter dbpar = m_conn.DbFactory.CreateParameter();
// dbpar.ParameterName = formpar;
// dbpar.Value = data;
// cmd.Parameters.Add(dbpar);
// cmd.ExecuteNonQuery();
//}
}
//public bool HasFile(string dbname, int folderid, int fileid)
//{
// DbConnectionExtension.SafeChangeDatabase(m_conn.SystemConnection, dbname);
// WantStructure(false);
// if (m_mode == Mode.Clear) return false;
// using (DbCommand cmd = m_conn.SystemConnection.CreateCommand())
// {
// cmd.CommandText = String.Format("SELECT id FROM d2dx_file WHERE folder_id={0} AND id='{1}'", folderid, fileid);
// using (DbDataReader reader = cmd.ExecuteReader())
// {
// return reader.Read();
// }
// }
//}
private void LoadFileData(string dbname, int folderid, string filename, out string data, out string type)
{
DbConnectionExtension.SafeChangeDatabase(m_conn.SystemConnection, dbname);
WantStructure(false);
using (DbCommand cmd = m_conn.SystemConnection.CreateCommand())
{
cmd.CommandText = String.Format("SELECT data_type, file_data FROM d2dx_file WHERE folder_id={0} AND file_name='{1}'", folderid, filename);
using (DbDataReader reader = cmd.ExecuteReader())
{
if (reader.Read())
{
type = reader[0].SafeToString();
object val = reader[1];
if (val is byte[])
{
data = Encoding.UTF8.GetString((byte[])val);
}
else
{
data = val.SafeToString();
}
return;
}
throw new InternalError("DAE-00027 File not found:" + filename);
}
}
}
public void RenameFile(string dbname, int folderid, string filename, string newname)
{
DbConnectionExtension.SafeChangeDatabase(m_conn.SystemConnection, dbname);
WantStructure(true);
using (DbCommand cmd = m_conn.SystemConnection.CreateCommand())
{
cmd.CommandText = String.Format("UPDATE d2dx_file SET file_name='{0}' WHERE folder_id={1} AND file_name='{2}'", newname, folderid, filename);
cmd.ExecuteNonQuery();
}
}
public static bool HasDXStructure(DbConnection conn)
{
try
{
DbConnectionExtension.ExecuteScalar(conn, "SELECT COUNT(*) FROM d2dx_info");
return(true);
}
catch (Exception)
{
return(false);
}
}
private static void ProcesssUpdate(int version, string updateSql, DbConnection conn, ISqlDialect dialect)
{
if (Int32.Parse(DbConnectionExtension.ExecuteScalar(conn, "SELECT par_value FROM d2dx_info WHERE par_name='dbversion'").ToString()) < version)
{
if (dialect.DialectCaps.NestedTransactions)
{
using (DbTransaction tran = conn.BeginTransaction())
{
DbConnectionExtension.ExecuteNonQueries(conn, updateSql, dialect, tran, null);
tran.Commit();
}
}
else
{
DbConnectionExtension.ExecuteNonQueries(conn, updateSql, dialect);
}
}
}
