Lösungsvariante hinzugefügt
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@ -24,7 +24,7 @@
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"RelativeDocumentMoniker": "Projekt_Calcan_Conze\\Program.cs",
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"ToolTip": "C:\\Jan_bib_Module\\PMC\\Projekt\\Projekt_Calcan_Conze\\Projekt_Calcan_Conze\\Program.cs",
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"RelativeToolTip": "Projekt_Calcan_Conze\\Program.cs",
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"ViewState": "AQIAACkAAAAAAAAAAAAAwDcAAAAgAAAA",
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"ViewState": "AQIAAFIAAAAAAAAAAAAqwGAAAABAAAAA",
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"Icon": "ae27a6b0-e345-4288-96df-5eaf394ee369.000738|",
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"WhenOpened": "2024-05-24T09:06:25.212Z",
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"EditorCaption": ""
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@ -47,7 +47,7 @@ class Program
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MySql.Data.MySqlClient.MySqlConnection myConnection;
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string myConnectionString;
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//set the correct values for your server, user, password and database name
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myConnectionString = "server=localhost;uid=root;pwd=root;database=import_export"; //ID eventuell von phpMyAdmin ziehen?
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myConnectionString = "server=localhost;uid=root;pwd=root;database=import_export"; //Hier greife ich auf import_export zu
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try
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{
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@ -59,15 +59,16 @@ class Program
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MySqlCommand myCommand = new MySqlCommand();
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myCommand.Connection = myConnection;
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// myCommand.CommandText = @"SELECT * FROM workshop WHERE maxParticipants = @code;";
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//Selber eingefügt ab hier
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myCommand.CommandText = @"SELECT * FROM user";
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myCommand.CommandText = @"SELECT * FROM user"; //Hier tragen wir unsere SELECT ein
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//Hier ende
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// myCommand.Parameters.AddWithValue("@code", "12");
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// execute the command and read the results
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using MySqlDataReader myReader = myCommand.ExecuteReader();
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//Hier dann den CSV Reader benutzen?
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while (myReader.Read())
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{
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@ -83,7 +84,7 @@ class Program
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}
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//Consolen-Ausgabe und Abfrage
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//Consolen-Ausgabe und Abfrage Eventuell hoch in das While schieben
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Console.WriteLine("Willkommen");
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Console.Write("Bitte geben Sie nun die Kundenummer ein: ");
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@ -93,177 +94,263 @@ class Program
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string filePath = "path/to/your/" + dateiBezeichnung; //Wo wird die CSV vor dem einlesen abgelegt? Extra Ordner dafür erstellen
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//Überprüfung einbauen, ob die Datei exisitiert mit if()
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//Überprüfung, ob die Datei exisitiert mit File.Exists()
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if (!File.Exists(filePath))
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{
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Console.WriteLine("Die Datei-Parameter konnten nicht gefunden werden. Bitte versuche es erneut");
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}
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//Schwierigkeit: Bei User beginnen und dann alle anderen Tabellen durch Foreign Keys verbinden/verweisen
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//Procedure INSERT anschauen - Elegante Lösung
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//Auto Increment beachten
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//Umsetzung mit Arrays: Beginnend mit durchzählen für Länge Array, Dann unterteilung in Blöcken
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//(CSV Datei einteilen vor Herr/Frau) , Dann erstellung Tabelle User, dann Andere Tabellen mit Foreign Keys verbinden
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//Umsetzung mit Arrays: Beginnend mit durchzählen für Länge Array, darauffolgende Unterteilung in Blöcken
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//(CSV Datei einteilen: (Beginnend immer mit Herr/Frau) , dann Erstellung Tabelle User, dann andere Tabellen mit Foreign Keys verknüpfen
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}
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}
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/*
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*
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* Die wunderbare Lösung von unserem Kollegen. Nicht getestet aber an den Ansätzen können wir uns orientieren
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*
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/* Das hier wäre eine Lösungsvariante. Diese beruht auf den vorhandenen Daten
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using System;
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using System.Collections.Generic;
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using System.Globalization;
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using System.IO;
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using System.Linq;
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using System.Text.RegularExpressions;
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using MySql.Data.MySqlClient;
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class Program
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{
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static void Main(string[] args)
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{
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if (args.Length != 2)
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{
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Console.WriteLine("Usage: ImportUsers <csv-file> <customer-id>");
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return;
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}
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// Connection zum Server
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string myConnectionString = "server=localhost;uid=root;pwd=root;database=import_export";
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string filePath = args[0];
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string customerId = args[1];
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Console.WriteLine("Willkommen");
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Console.Write("Bitte geben Sie nun die Kundennummer ein: ");
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string kundennummer = Console.ReadLine();
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Console.Write("Bitte geben Sie die Datei-Parameter ein: ");
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string dateiBezeichnung = Console.ReadLine();
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string filePath = "path/to/your/" + dateiBezeichnung; // Adjust the path to your CSV file
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if (!File.Exists(filePath))
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{
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Console.WriteLine("File does not exist.");
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Console.WriteLine("Die Datei-Parameter konnten nicht gefunden werden. Bitte versuche es erneut");
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return;
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}
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var users = ReadCsvFile(filePath);
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var invalidUsers = new List<string>();
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var validUsers = new List<User>();
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List<string> invalidEntries = new List<string>();
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List<string> existingEntries = new List<string>();
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foreach (var user in users)
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// Einlesen der CSV-Datei und Verarbeitung der Daten
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string[] lines = File.ReadAllLines(filePath);
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List<User> users = ParseCsv(lines, invalidEntries);
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using (MySqlConnection myConnection = new MySqlConnection(myConnectionString))
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{
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if (ValidateUser(user, out string validationError))
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myConnection.Open();
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foreach (User user in users)
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{
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if (!IsUserAlreadyExists(user, customerId))
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// Überprüfen, ob der Nutzer bereits existiert
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if (UserExists(myConnection, user, kundennummer))
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{
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validUsers.Add(user);
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existingEntries.Add($"{user.Firstname} {user.Lastname}, {user.Email}");
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continue;
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}
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else
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{
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invalidUsers.Add($"User already exists: {user.FirstName} {user.LastName}, Email: {user.Email}");
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}
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}
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else
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{
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invalidUsers.Add(validationError);
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// Nutzer einfügen
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InsertUser(myConnection, user, kundennummer);
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}
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}
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ImportValidUsers(validUsers, customerId);
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LogInvalidUsers(invalidUsers);
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// Ungültige und bereits vorhandene Einträge protokollieren
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LogEntries("invalid_entries.log", invalidEntries);
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LogEntries("existing_entries.log", existingEntries);
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Console.WriteLine("Import completed.");
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Console.WriteLine("Import abgeschlossen.");
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}
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static List<User> ReadCsvFile(string filePath)
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static List<User> ParseCsv(string[] lines, List<string> invalidEntries)
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{
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var users = new List<User>();
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var lines = File.ReadAllLines(filePath);
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List<User> users = new List<User>();
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User currentUser = null;
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foreach (var line in lines)
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foreach (string line in lines)
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{
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var columns = line.Split(',');
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string[] parts = line.Split(';');
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var user = new User
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if (parts[0] == "Herr" || parts[0] == "Frau")
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{
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Salutation = columns[0],
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FirstName = columns[1],
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LastName = columns[2],
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BirthDate = columns[3],
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Street = columns[4],
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PostalCode = columns[5],
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City = columns[6],
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Email = columns[7],
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PhoneNumbers = columns.Skip(8).ToList()
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if (currentUser != null)
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{
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users.Add(currentUser);
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}
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currentUser = new User
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{
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Gender = parts[0],
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Firstname = parts[1],
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Lastname = parts[2],
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Birthdate = parts[3]
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};
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continue;
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}
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users.Add(user);
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if (parts[0] == "Adresse" && currentUser != null)
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{
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currentUser.Address = new Address
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{
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Street = parts[1],
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PostalCode = parts[2],
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City = parts[3]
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};
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continue;
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}
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if (parts[0] == "E-Mail" && currentUser != null)
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{
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currentUser.Email = parts[1];
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if (!IsValidEmail(currentUser.Email))
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{
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invalidEntries.Add($"Ungültige E-Mail: {currentUser.Email}");
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currentUser = null;
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}
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continue;
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}
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if (parts[0] == "Telefon" && currentUser != null)
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{
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if (!IsValidPhone(parts[1], parts[2]))
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{
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invalidEntries.Add($"Ungültige Telefonnummer: {parts[1]} {parts[2]}");
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currentUser = null;
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}
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else
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{
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currentUser.Phones.Add(new Phone
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{
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Prefix = parts[1],
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Number = parts[2]
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});
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}
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continue;
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}
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}
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if (currentUser != null)
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{
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users.Add(currentUser);
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}
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return users;
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}
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static bool ValidateUser(User user, out string error)
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static bool IsValidEmail(string email)
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{
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error = string.Empty;
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DateTime birthDate;
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if (!DateTime.TryParseExact(user.BirthDate, "dd.MM.yyyy", CultureInfo.InvariantCulture, DateTimeStyles.None, out birthDate))
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try
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{
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error = $"Invalid birth date: {user.BirthDate}";
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return false;
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var addr = new System.Net.Mail.MailAddress(email);
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return addr.Address == email;
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}
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if (!Regex.IsMatch(user.Email, @"^[^@\s]+@[^@\s]+\.[^@\s]+$"))
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catch
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{
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error = $"Invalid email: {user.Email}";
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return false;
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}
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if (!Regex.IsMatch(user.PostalCode, @"^\d{5}$"))
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{
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error = $"Invalid postal code: {user.PostalCode}";
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return false;
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}
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foreach (var phone in user.PhoneNumbers)
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{
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var parts = phone.Split('-');
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if (parts.Length != 2 || !Regex.IsMatch(parts[0], @"^\d{3,5}$") || !Regex.IsMatch(parts[1], @"^\d{4,10}$"))
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{
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error = $"Invalid phone number: {phone}";
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return false;
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}
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}
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return true;
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static bool IsValidPhone(string prefix, string number)
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{
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return Regex.IsMatch(prefix, @"^\d{3,5}$") && Regex.IsMatch(number, @"^\d{4,10}$");
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}
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static bool IsUserAlreadyExists(User user, string customerId)
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static bool UserExists(MySqlConnection connection, User user, string clientId)
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{
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// Hier sollte die Logik implementiert werden, um zu prüfen, ob der Nutzer bereits in der Datenbank vorhanden ist.
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// Dies ist ein Platzhalter für die tatsächliche Überprüfung in der Datenbank.
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return false;
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string query = @"SELECT COUNT(*) FROM user WHERE firstname = @firstname AND lastname = @lastname AND clientId = @clientId";
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MySqlCommand cmd = new MySqlCommand(query, connection);
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cmd.Parameters.AddWithValue("@firstname", user.Firstname);
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cmd.Parameters.AddWithValue("@lastname", user.Lastname);
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cmd.Parameters.AddWithValue("@clientId", clientId);
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return Convert.ToInt32(cmd.ExecuteScalar()) > 0;
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}
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static void ImportValidUsers(List<User> users, string customerId)
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static void InsertUser(MySqlConnection connection, User user, string clientId)
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{
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// Hier sollte die Logik implementiert werden, um die gültigen Nutzer in die Datenbank zu importieren.
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// Dies ist ein Platzhalter für den tatsächlichen Datenbankimport.
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string query = @"INSERT INTO user (clientId, genderId, firstname, lastname, birthdate) VALUES (@clientId, @genderId, @firstname, @lastname, @birthdate)";
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MySqlCommand cmd = new MySqlCommand(query, connection);
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cmd.Parameters.AddWithValue("@clientId", clientId);
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cmd.Parameters.AddWithValue("@genderId", user.Gender == "Herr" ? 1 : (user.Gender == "Frau" ? 2 : 3));
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cmd.Parameters.AddWithValue("@firstname", user.Firstname);
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cmd.Parameters.AddWithValue("@lastname", user.Lastname);
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cmd.Parameters.AddWithValue("@birthdate", DateTime.ParseExact(user.Birthdate, "dd.MM.yyyy", CultureInfo.InvariantCulture));
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cmd.ExecuteNonQuery();
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long userId = cmd.LastInsertedId;
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if (user.Address != null)
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{
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query = @"INSERT INTO address (userId, street, postalcode, city) VALUES (@userId, @street, @postalcode, @city)";
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cmd = new MySqlCommand(query, connection);
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cmd.Parameters.AddWithValue("@userId", userId);
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cmd.Parameters.AddWithValue("@street", user.Address.Street);
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cmd.Parameters.AddWithValue("@postalcode", user.Address.PostalCode);
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cmd.Parameters.AddWithValue("@city", user.Address.City);
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cmd.ExecuteNonQuery();
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}
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static void LogInvalidUsers(List<string> invalidUsers)
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if (!string.IsNullOrEmpty(user.Email))
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{
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using (StreamWriter sw = new StreamWriter("invalid_users.log"))
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{
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foreach (var error in invalidUsers)
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{
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sw.WriteLine(error);
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query = @"INSERT INTO email (userId, email) VALUES (@userId, @Email)";
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cmd = new MySqlCommand(query, connection);
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cmd.Parameters.AddWithValue("@userId", userId);
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cmd.Parameters.AddWithValue("@Email", user.Email);
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cmd.ExecuteNonQuery();
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}
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foreach (var phone in user.Phones)
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{
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query = @"INSERT INTO phone (userId, phoneprefix, phonenumber) VALUES (@userId, @phoneprefix, @phonenumber)";
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cmd = new MySqlCommand(query, connection);
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cmd.Parameters.AddWithValue("@userId", userId);
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cmd.Parameters.AddWithValue("@phoneprefix", phone.Prefix);
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cmd.Parameters.AddWithValue("@phonenumber", phone.Number);
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cmd.ExecuteNonQuery();
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}
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}
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static void LogEntries(string filePath, List<string> entries)
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{
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if (entries.Count > 0)
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{
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File.AppendAllLines(filePath, entries);
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}
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}
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}
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class User
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{
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public string Salutation { get; set; }
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public string FirstName { get; set; }
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public string LastName { get; set; }
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public string BirthDate { get; set; }
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public string Gender { get; set; }
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public string Firstname { get; set; }
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public string Lastname { get; set; }
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public string Birthdate { get; set; }
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public Address Address { get; set; }
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public string Email { get; set; }
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public List<Phone> Phones { get; set; } = new List<Phone>();
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}
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class Address
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{
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public string Street { get; set; }
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public string PostalCode { get; set; }
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public string City { get; set; }
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public string Email { get; set; }
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public List<string> PhoneNumbers { get; set; }
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}
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*/
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class Phone
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{
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public string Prefix { get; set; }
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public string Number { get; set; }
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}
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*/
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@ -14,7 +14,7 @@ using System.Reflection;
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[assembly: System.Reflection.AssemblyCompanyAttribute("Projekt_Calcan_Conze")]
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[assembly: System.Reflection.AssemblyConfigurationAttribute("Debug")]
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[assembly: System.Reflection.AssemblyFileVersionAttribute("1.0.0.0")]
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[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+5be00c2e03258059442828eb121b209b9abc8ce5")]
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[assembly: System.Reflection.AssemblyInformationalVersionAttribute("1.0.0+b5daf727d036da56b4f0ec7d625674d7d8d44a73")]
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[assembly: System.Reflection.AssemblyProductAttribute("Projekt_Calcan_Conze")]
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[assembly: System.Reflection.AssemblyTitleAttribute("Projekt_Calcan_Conze")]
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[assembly: System.Reflection.AssemblyVersionAttribute("1.0.0.0")]
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@ -1 +1 @@
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4b22627745609a314655206a5a1750317c1cb42a093f5d4808d42383331c33bf
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e39a290590c7cc4b23572b44b843d3323f8e88ed187de9f169fba7cecdea222d
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