116 lines
2.9 KiB
C#
116 lines
2.9 KiB
C#
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Text;
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using System.Threading.Tasks;
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using Microsoft.Data.SqlClient;
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using MySqlConnector;
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namespace PWAPPv2.Source.Database
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{
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class DatabaseConnection
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{
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private MySqlConnection Connection;
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private string SqlString;
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DatabaseConfig Config;
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public DatabaseConnection(DatabaseConfig config)
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{
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Config = config;
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SqlString = "server=" + config.host + ";Uid=" + config.user + ";database=" + config.database + ";Pwd=" + config.password;
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Connection = new MySqlConnection(SqlString);
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}
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public void Connect()
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{
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try
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{
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Connection.Open();
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}
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catch(Exception)
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{
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throw new DatabaseConnectionException();
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}
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}
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public List<string> QueryDatabase(string query)
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{
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try
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{
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Connection.Open();
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}
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catch (Exception)
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{
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throw new CouldNotOpenConnectionException();
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}
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MySqlCommand Command = new MySqlCommand(query, Connection);
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MySqlDataReader reader;
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try
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{
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reader = Command.ExecuteReader();
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}
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catch (Exception)
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{
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Connection.Close();
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throw new ReaderException();
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}
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List<string> result = new List<string>();
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while (reader.Read())
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{
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int n = reader.VisibleFieldCount;
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for (int i = 0; i < reader.VisibleFieldCount; i++)
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{
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var type = reader.GetFieldType(i);
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if (type.Name == "Int64")
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{
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result.Add(reader.GetInt64(i).ToString());
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}
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if (type.Name == "Int32")
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{
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result.Add(reader.GetInt32(i).ToString());
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}
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if (type.Name == "String")
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{
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result.Add(reader.GetString(i));
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}
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if (type.Name == "Byte")
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{
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result.Add(reader.GetByte(i).ToString());
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}
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if (type.Name == "DateTime")
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{
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result.Add(reader.GetDateTime(i).ToString());
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}
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}
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}
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Connection.Close();
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return result;
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}
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}
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class DatabaseConfigurationException : Exception
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{
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}
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class DatabaseConnectionException : Exception
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{ }
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class CouldNotOpenConnectionException : Exception
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{
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}
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class ReaderException : Exception
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{
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}
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}
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