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using System;
using System.Collections.Generic;
using System.Text;
using System.Data;
// MySQL Native
using MySql;
using MySql.Data;
using MySql.Data.Types;
using MySql.Data.MySqlClient;
using OpenGrid.Framework.Data;
namespace OpenGrid.Framework.Data.MySQL
{
class MySQLManager
{
IDbConnection dbcon;
/// <summary>
/// Initialises and creates a new MySQL connection and maintains it.
/// </summary>
/// <param name="hostname">The MySQL server being connected to</param>
/// <param name="database">The name of the MySQL database being used</param>
/// <param name="username">The username logging into the database</param>
/// <param name="password">The password for the user logging in</param>
/// <param name="cpooling">Whether to use connection pooling or not, can be one of the following: 'yes', 'true', 'no' or 'false', if unsure use 'false'.</param>
public MySQLManager(string hostname, string database, string username, string password, string cpooling)
{
try
{
string connectionString = "Server=" + hostname + ";Database=" + database + ";User ID=" + username + ";Password=" + password + ";Pooling=" + cpooling + ";";
dbcon = new MySqlConnection(connectionString);
dbcon.Open();
}
catch (Exception e)
{
throw new Exception("Error initialising MySql Database: " + e.ToString());
}
}
/// <summary>
/// Shuts down the database connection
/// </summary>
public void Close()
{
dbcon.Close();
dbcon = null;
}
/// <summary>
/// Runs a query with protection against SQL Injection by using parameterised input.
/// </summary>
/// <param name="sql">The SQL string - replace any variables such as WHERE x = "y" with WHERE x = @y</param>
/// <param name="parameters">The parameters - index so that @y is indexed as 'y'</param>
/// <returns>A MySQL DB Command</returns>
public IDbCommand Query(string sql, Dictionary<string, string> parameters)
{
MySqlCommand dbcommand = (MySqlCommand)dbcon.CreateCommand();
dbcommand.CommandText = sql;
foreach (KeyValuePair<string, string> param in parameters)
{
dbcommand.Parameters.Add(param.Key, param.Value);
}
return (IDbCommand)dbcommand;
}
public SimProfileData getRow(IDataReader reader)
{
SimProfileData retval = new SimProfileData();
if (reader.Read())
{
retval.regionLocX = (uint)reader["locX"];
retval.regionDataURI = (string)reader["regionDataURI"];
}
else
{
return null;
}
return retval;
}
}
}
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