/// <inheritdoc />
public long GetBytes(int i, long fieldOffset, byte[] buffer, int bufferoffset, int length)
{
if (_rowColumns[i].GetLength() > _rowColumns[i].BufferLength)//data truncation
{
MYSQL_BIND[] newbind = new MYSQL_BIND[1];
newbind[0] = new MYSQL_BIND();
var ft = new MYSQL_FIELD();
ft.Type = enum_field_types.MYSQL_TYPE_BLOB;
ft.MaxLength = (uint)length;
newbind[0].InitForBind(ft, Stmt._nativeConnection);
sbyte errorCode = Stmt.mysql_stmt_fetch_column(newbind, (uint)i, (uint)fieldOffset);
if (errorCode != 0)
{
throw new MySqlException(Stmt);
}
long result = Math.Min(length, newbind[0].GetLength() - fieldOffset);
newbind[0].GetBytes(buffer, (uint)result);
newbind[0].Dispose();
return(result);
}
else
{
_rowColumns[i].GetBytes(buffer, (uint)length);
return(_rowColumns[i].GetLength());
}
}
// Update by Omar del Valle Rodríguez ([email protected]) // In order support CommandBehavior.CloseConnection internal LiteralQueryStatement(IntPtr resultPtr, MySQLConnection connection, bool closeConnection) { _nativeResult = new NativeResult(resultPtr); // Add by Omar del Valle Rodríguez ([email protected]) // Save if close connection after close MySQLDataReader m_CloseConnection = closeConnection; this._connection = connection; dt = new DataTable(); uint i; ulong j; uint num_fields = _nativeResult.mysql_num_fields(); ulong num_rows = _nativeResult.mysql_num_rows(); List <QueryFieldDescription> fields = new List <QueryFieldDescription>(); for (i = 0; i < num_fields; i++) { var field = new MYSQL_FIELD(); var ptr = _nativeResult.mysql_fetch_field_direct(i); Marshal.PtrToStructure(ptr, field); dt.Columns.Add(field.Name); //Type ftype = MySqlField.MysqltoNetType(field); var mySqlField = new QueryFieldDescription(field.Name, (enum_field_types)field.Type, field.MaxLength, field.Length, field.Flags); if (mySqlField.FieldType != null) { dt.Columns[field.Name].DataType = mySqlField.FieldType; if (dt.Columns[field.Name].DataType == System.Type.GetType("System.Byte[]")) { dt.Columns[field.Name].ExtendedProperties.Add("max_length", (int)field.MaxLength); } } fields.Add(mySqlField); } for (j = 0; j < num_rows; j++) { IntPtr myrow = _nativeResult.mysql_fetch_row(); if (myrow == IntPtr.Zero) { throw new MySqlException(connection.NativeConnection); } DataRow dr = dt.NewRow(); /* for BLOB support * "Christophe Ravier" <*****@*****.**> 2003-11-27*/ var lengths = _nativeResult.mysql_fetch_lengths((int)num_fields); for (i = 0; i < num_fields; i++) { QueryFieldDescription queryFieldDescription = fields[(int)i]; IntPtr ptr = Marshal.ReadIntPtr(myrow, (int)i * Marshal.SizeOf <IntPtr>()); if (ptr == IntPtr.Zero) { dr[(int)i] = Convert.DBNull; } else if (queryFieldDescription.FieldType == typeof(bool)) { dr[(int)i] = GetValidString(ptr) != "0"; } else if (queryFieldDescription.FieldType == typeof(byte[])) { int length = (int)lengths[i]; var val = new byte[length]; Marshal.Copy(ptr, val, 0, length); dr[(int)i] = val; } else if (queryFieldDescription.FieldType == typeof(short)) { dr[(int)i] = Convert.ToInt16(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(ushort)) { dr[(int)i] = Convert.ToUInt16(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(byte)) { dr[(int)i] = Convert.ToByte(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(sbyte)) { dr[(int)i] = Convert.ToSByte(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(decimal)) { dr[(int)i] = Convert.ToDecimal(GetValidString(ptr), CultureInfo.InvariantCulture.NumberFormat); } else if (queryFieldDescription.FieldType == typeof(double)) { dr[(int)i] = Convert.ToDouble(GetValidString(ptr), CultureInfo.InvariantCulture.NumberFormat); } else if (queryFieldDescription.FieldType == typeof(float)) { dr[(int)i] = Convert.ToSingle(GetValidString(ptr), CultureInfo.InvariantCulture.NumberFormat); } else if (queryFieldDescription.FieldType == typeof(int)) { dr[(int)i] = Convert.ToInt32(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(uint)) { dr[(int)i] = Convert.ToUInt32(GetValidString(ptr)); } else if (queryFieldDescription.FieldType == typeof(long)) { dr[(int)i] = Convert.ToInt64(GetValidString(ptr)); } else if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_GEOMETRY) { // TODO: returns empty string string val = GetValidString(ptr); dr[(int)i] = val; } else if (queryFieldDescription.FieldType == typeof(ulong)) { if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_BIT) { { int byteCount; if (queryFieldDescription.Length <= 8) { byteCount = 1; } else if (queryFieldDescription.Length <= 16) { byteCount = 2; } else if (queryFieldDescription.Length <= 24) { byteCount = 3; } else if (queryFieldDescription.Length <= 32) { byteCount = 4; } else if (queryFieldDescription.Length <= 32 + 8) { byteCount = 5; } else if (queryFieldDescription.Length <= 32 + 16) { byteCount = 6; } else if (queryFieldDescription.Length <= 32 + 24) { byteCount = 7; } else { byteCount = 8; } var buffer = new byte[sizeof(long)]; for (int l = 0; l < byteCount; l++) { buffer[l] = Marshal.ReadByte(ptr, l); } dr[(int)i] = BitConverter.ToInt64(buffer, 0); } } else { string val = GetValidString(ptr); if (val == null) { dr[(int)i] = Convert.DBNull; } else { dr[(int)i] = Convert.ToUInt64(val); } } } else if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_DATE || queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_DATE) { string val = GetValidString(ptr); dr[(int)i] = DateTime.ParseExact(val, "yyyy-MM-dd", CultureInfo.InvariantCulture.DateTimeFormat); } else if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_DATETIME || queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_DATETIME2 || queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_TIMESTAMP || queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_TIMESTAMP2) { string val = GetValidString(ptr); dr[(int)i] = DateTime.ParseExact(val, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture.DateTimeFormat); } else if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_TIME || queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_TIME2) { string val = GetValidString(ptr); dr[(int)i] = DateTime.ParseExact("0001-01-01 " + val, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture.DateTimeFormat); } else if (queryFieldDescription.Type == enum_field_types.MYSQL_TYPE_YEAR) { string val = GetValidString(ptr); dr[(int)i] = DateTime.ParseExact(val, "yyyy", CultureInfo.InvariantCulture.DateTimeFormat); } else if (queryFieldDescription.FieldType == typeof(DateTime)) { string val = GetValidString(ptr); if (val == null) { dr[(int)i] = Convert.DBNull; } else { DateTimeFormatInfo format = new DateTimeFormatInfo(); if (val.Length > 20) { dr[(int)i] = DateTime.ParseExact(val, "yyyy-MM-dd HH:mm:ss.fff", CultureInfo.InvariantCulture.DateTimeFormat); } else { if (val.Length > 10) { dr[(int)i] = DateTime.ParseExact(val, "yyyy-MM-dd HH:mm:ss", CultureInfo.InvariantCulture.DateTimeFormat); } else { dr[(int)i] = DateTime.ParseExact(val, "yyyy-MM-dd", CultureInfo.InvariantCulture.DateTimeFormat); } } } } else if (queryFieldDescription.FieldType == typeof(string)) { string val = GetValidString(ptr); if (val == null) { dr[(int)i] = Convert.DBNull; } else { dr[(int)i] = val; } } else { throw new Exception(); } } dt.Rows.Add(dr); } }
