hondacrx
117 lines
3.0 KiB
C#
117 lines
3.0 KiB
C#
/*
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* Copyright (C) 2012-2020 CypherCore <http://github.com/CypherCore>
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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using MySql.Data.MySqlClient;
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using System;
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namespace Framework.Database
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{
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public class SQLResult
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{
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MySqlDataReader _reader;
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public SQLResult() { }
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public SQLResult(MySqlDataReader reader)
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{
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_reader = reader;
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NextRow();
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}
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~SQLResult()
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{
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_reader = null;
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}
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public T Read<T>(int column)
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{
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var value = _reader[column];
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if (value == DBNull.Value)
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return default(T);
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if (value.GetType() != typeof(T))
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return (T)Convert.ChangeType(value, typeof(T));//todo remove me when all fields are the right type this is super slow
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return (T)value;
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}
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public bool IsNull(int column)
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{
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return _reader.IsDBNull(column);
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}
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public int GetFieldCount() { return _reader.FieldCount; }
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public bool IsEmpty()
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{
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if (_reader == null)
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return true;
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return _reader.IsClosed || !_reader.HasRows;
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}
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public SQLFields GetFields()
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{
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object[] values = new object[_reader.FieldCount];
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_reader.GetValues(values);
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return new SQLFields(values);
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}
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public bool NextRow()
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{
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if (_reader == null)
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return false;
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if (_reader.Read())
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return true;
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_reader.Close();
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return false;
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}
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}
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public class SQLFields
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{
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object[] _currentRow;
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public SQLFields(object[] row) { _currentRow = row; }
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public T Read<T>(int column)
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{
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var value = _currentRow[column];
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if (value == DBNull.Value)
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return default(T);
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if (value.GetType() != typeof(T))
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return (T)Convert.ChangeType(value, typeof(T));//todo remove me when all fields are the right type this is super slow
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return (T)value;
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}
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public T[] ReadValues<T>(int startIndex, int numColumns)
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{
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T[] values = new T[numColumns];
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for (var c = 0; c < numColumns; ++c)
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values[c] = Read<T>(startIndex + c);
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return values;
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}
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}
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}
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