57 lines
1.9 KiB
C#
57 lines
1.9 KiB
C#
using System;
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using System.Collections.Generic;
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using MySql.Data;
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using MySql.Data.MySqlClient;
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namespace it_projekt
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{
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class Database
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{
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private static Database _database;
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public List<Person> Persons { get; set; }
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private Database(string username, string password)
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{
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string connectionString = "server=localhost;port=3306;database=stammdaten;User Id=" + username + ";Password=" + password + ";";
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MySqlConnection connection = new MySqlConnection(connectionString);
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try
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{
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connection.Open();
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string sql =
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"SELECT stammdaten.id,stammdaten.firstname, stammdaten.lastname, stammdaten.creationdate, abteilung.kuerzel, abteilung.name " +
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"FROM `stammdaten` JOIN abteilung " +
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"WHERE abteilungs_id = abteilung.id;";
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MySqlCommand cmd = new MySqlCommand(sql, connection);
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MySqlDataReader rdr = cmd.ExecuteReader();
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Persons = new List<Person>();
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while (rdr.Read())
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{
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Person p = new Person(rdr[0].ToString(), rdr[1].ToString(), rdr[2].ToString(), DateTime.Parse(rdr[3].ToString()), rdr[4].ToString(), rdr[5].ToString());
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Persons.Add(p);
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}
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rdr.Close();
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}
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catch (Exception ex)
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{
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Console.WriteLine(ex.ToString());
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}
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connection.Close();
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}
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public static Database getDatabase(string username, string password)
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{
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if (_database == null)
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{
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_database = new Database(username, password);
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}
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return _database;
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}
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public static void resetDatabase()
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{
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_database = null;
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}
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}
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}
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