gui

Stundenplan/src/DatabaseConnector.java

@@ -8,36 +8,38 @@ import java.sql.*;
  * Klasse DatabaseConnector
  * </p>
  * <p>
- * Ein Objekt der Klasse DatabaseConnector ermoeglicht die Abfrage und Manipulation 
- * einer SQLite-Datenbank. 
- * Beim Erzeugen des Objekts wird eine Datenbankverbindung aufgebaut, so dass 
- * anschließend SQL-Anweisungen an diese Datenbank gerichtet werden koennen.
+ * Ein Objekt der Klasse DatabaseConnector ermoeglicht die Abfrage und
+ * Manipulation einer SQLite-Datenbank. Beim Erzeugen des Objekts wird eine
+ * Datenbankverbindung aufgebaut, so dass anschließend SQL-Anweisungen an diese
+ * Datenbank gerichtet werden koennen.
  * </p>
  * 
  * @author Qualitaets- und UnterstuetzungsAgentur - Landesinstitut fuer Schule
  * @version 2016-01-24
  */
-public class DatabaseConnector{
+public class DatabaseConnector {
 	private Connection connection;
 	private QueryResult currentQueryResult = null;
 	private String message = null;
 
 	/**
-   * Ein Objekt vom Typ DatabaseConnector wird erstellt, und eine Verbindung zur Datenbank 
-   * wird aufgebaut. Mit den Parametern pIP und pPort werden die IP-Adresse und die 
-   * Port-Nummer uebergeben, unter denen die Datenbank mit Namen pDatabase zu erreichen ist. 
-   * Mit den Parametern pUsername und pPassword werden Benutzername und Passwort fuer die 
-   * Datenbank uebergeben.
+	 * Ein Objekt vom Typ DatabaseConnector wird erstellt, und eine Verbindung zur
+	 * Datenbank wird aufgebaut. Mit den Parametern pIP und pPort werden die
+	 * IP-Adresse und die Port-Nummer uebergeben, unter denen die Datenbank mit
+	 * Namen pDatabase zu erreichen ist. Mit den Parametern pUsername und pPassword
+	 * werden Benutzername und Passwort fuer die Datenbank uebergeben.
 	 */
-  public DatabaseConnector(String pIP, int pPort, String pDatabase, String pUsername, String pPassword){
-    //Eine Impementierung dieser Schnittstelle fuer SQLite ignoriert pID und pPort, da die Datenbank immer lokal ist. 
-    //Auch pUsername und pPassword werden nicht verwendet, da SQLite sie nicht unterstuetzt.
+	public DatabaseConnector(String pIP, int pPort, String pDatabase, String pUsername, String pPassword) {
+		// Eine Impementierung dieser Schnittstelle fuer SQLite ignoriert pID und pPort,
+		// da die Datenbank immer lokal ist.
+		// Auch pUsername und pPassword werden nicht verwendet, da SQLite sie nicht
+		// unterstuetzt.
 		try {
-      //Laden der Treiberklasse
+			// Laden der Treiberklasse
 			Class.forName("org.sqlite.JDBC");
 
-      //Verbindung herstellen
-      connection = DriverManager.getConnection("jdbc:sqlite:"+pDatabase);
+			// Verbindung herstellen
+			connection = DriverManager.getConnection("jdbc:sqlite:" + pDatabase);
 
 		} catch (Exception e) {
 			message = e.getMessage();
@@ -45,100 +47,102 @@ public class DatabaseConnector{
 	}
 
 	/**
-   * Der Auftrag schickt den im Parameter pSQLStatement enthaltenen SQL-Befehl an die 
-   * Datenbank ab. 
-   * Handelt es sich bei pSQLStatement um einen SQL-Befehl, der eine Ergebnismenge 
-   * liefert, so kann dieses Ergebnis anschließend mit der Methode getCurrentQueryResult 
-   * abgerufen werden.
+	 * Der Auftrag schickt den im Parameter pSQLStatement enthaltenen SQL-Befehl an
+	 * die Datenbank ab. Handelt es sich bei pSQLStatement um einen SQL-Befehl, der
+	 * eine Ergebnismenge liefert, so kann dieses Ergebnis anschließend mit der
+	 * Methode getCurrentQueryResult abgerufen werden.
 	 */
-  public void executeStatement(String pSQLStatement){  
-    //Altes Ergebnis loeschen
+	public void executeStatement(String pSQLStatement) {
+		// Altes Ergebnis loeschen
 		currentQueryResult = null;
 		message = null;
 
 		try {
-      //Neues Statement erstellen
+			// Neues Statement erstellen
 			Statement statement = connection.createStatement();
 
-      //SQL Anweisung an die DB schicken.
-      if (statement.execute(pSQLStatement)) { //Fall 1: Es gibt ein Ergebnis
+			// SQL Anweisung an die DB schicken.
+			if (statement.execute(pSQLStatement)) { // Fall 1: Es gibt ein Ergebnis
 
-        //Resultset auslesen
+				// Resultset auslesen
 				ResultSet resultset = statement.getResultSet();
 
-        //Spaltenanzahl ermitteln
+				// Spaltenanzahl ermitteln
 				int columnCount = resultset.getMetaData().getColumnCount();
 
-        //Spaltennamen und Spaltentypen in Felder uebertragen
+				// Spaltennamen und Spaltentypen in Felder uebertragen
 				String[] resultColumnNames = new String[columnCount];
 				String[] resultColumnTypes = new String[columnCount];
-        for (int i = 0; i < columnCount; i++){
-          resultColumnNames[i] = resultset.getMetaData().getColumnLabel(i+1);
-          resultColumnTypes[i] = resultset.getMetaData().getColumnTypeName(i+1);
+				for (int i = 0; i < columnCount; i++) {
+					resultColumnNames[i] = resultset.getMetaData().getColumnLabel(i + 1);
+					resultColumnTypes[i] = resultset.getMetaData().getColumnTypeName(i + 1);
 				}
 
-        //Queue fuer die Zeilen der Ergebnistabelle erstellen
+				// Queue fuer die Zeilen der Ergebnistabelle erstellen
 				Queue<String[]> rows = new Queue<String[]>();
 
-        //Daten in Queue uebertragen und Zeilen zaehlen
+				// Daten in Queue uebertragen und Zeilen zaehlen
 				int rowCount = 0;
-        while (resultset.next()){
+				while (resultset.next()) {
 					String[] resultrow = new String[columnCount];
-          for (int s = 0; s < columnCount; s++){
-            resultrow[s] = resultset.getString(s+1);
+					for (int s = 0; s < columnCount; s++) {
+						resultrow[s] = resultset.getString(s + 1);
 					}
 					rows.enqueue(resultrow);
 					rowCount = rowCount + 1;
 				}
 
-        //Ergebnisfeld erstellen und Zeilen aus Queue uebertragen
+				// Ergebnisfeld erstellen und Zeilen aus Queue uebertragen
 				String[][] resultData = new String[rowCount][columnCount];
 				int j = 0;
-        while (!rows.isEmpty()){
+				while (!rows.isEmpty()) {
 					resultData[j] = rows.front();
 					rows.dequeue();
 					j = j + 1;
 				}
 
-        //Statement schließen und Ergebnisobjekt erstellen
+				// Statement schließen und Ergebnisobjekt erstellen
 				statement.close();
 				currentQueryResult = new QueryResult(resultData, resultColumnNames, resultColumnTypes);
 
-      } else { //Fall 2: Es gibt kein Ergebnis.
-        //Statement ohne Ergebnisobjekt schliessen
+			} else { // Fall 2: Es gibt kein Ergebnis.
+				// Statement ohne Ergebnisobjekt schliessen
 				statement.close();
 			}
 
 		} catch (Exception e) {
-      //Fehlermeldung speichern
+			// Fehlermeldung speichern
 			message = e.getMessage();
 		}
 	}
 
 	/**
-   * Die Anfrage liefert das Ergebnis des letzten mit der Methode executeStatement an 
-   * die Datenbank geschickten SQL-Befehls als Ob-jekt vom Typ QueryResult zurueck.
-   * Wurde bisher kein SQL-Befehl abgeschickt oder ergab der letzte Aufruf von 
-   * executeStatement keine Ergebnismenge (z.B. bei einem INSERT-Befehl oder einem 
-   * Syntaxfehler), so wird null geliefert.  
+	 * Die Anfrage liefert das Ergebnis des letzten mit der Methode executeStatement
+	 * an die Datenbank geschickten SQL-Befehls als Ob-jekt vom Typ QueryResult
+	 * zurueck. Wurde bisher kein SQL-Befehl abgeschickt oder ergab der letzte
+	 * Aufruf von executeStatement keine Ergebnismenge (z.B. bei einem INSERT-Befehl
+	 * oder einem Syntaxfehler), so wird null geliefert.
 	 */
-  public QueryResult getCurrentQueryResult(){
+	public QueryResult getCurrentQueryResult() {
+		if (currentQueryResult == null) {
+			System.out.println(getErrorMessage());
+		}
 		return currentQueryResult;
 	}
 
 	/**
-   * Die Anfrage liefert null oder eine Fehlermeldung, die sich jeweils auf die letzte zuvor ausgefuehrte 
-   * Datenbankoperation bezieht.
+	 * Die Anfrage liefert null oder eine Fehlermeldung, die sich jeweils auf die
+	 * letzte zuvor ausgefuehrte Datenbankoperation bezieht.
 	 */
-  public String getErrorMessage(){
+	public String getErrorMessage() {
 		return message;
 	}
 
 	/**
 	 * Die Datenbankverbindung wird geschlossen.
 	 */
-  public void close(){
-    try{
+	public void close() {
+		try {
 			connection.close();
 		} catch (Exception e) {
 			message = e.getMessage();

Stundenplan/src/Stundenplan.java

@@ -1,5 +1,6 @@
 import javax.swing.*;
 import java.awt.*;
+import java.util.Arrays;
 
 public class Stundenplan implements SelectionListener {
 
@@ -44,7 +45,21 @@ public class Stundenplan implements SelectionListener {
 		for (int i = 0; i < r.getRowCount(); i++) {
 			teachers[i] = r.getData()[i][0];
 		}
+		dbc.executeStatement("SELECT jahrgang, buchstabe FROM klassen");
+		r = dbc.getCurrentQueryResult();
+		String[] classes = new String[r.getRowCount()];
+		for (int i = 0; i < r.getRowCount(); i++) {
+			classes[i] = r.getData()[i][0] + r.getData()[i][1];
+		}
+		dbc.executeStatement("SELECT nummer FROM raeume");
+		r = dbc.getCurrentQueryResult();
+		String[] raeume = new String[r.getRowCount()];
+		for (int i = 0; i < r.getRowCount(); i++) {
+			raeume[i] = r.getData()[i][0];
+		}
 		gui.addFilter("Lehrer", teachers);
+		gui.addFilter("Klasse", classes);
+		gui.addFilter("Raum", raeume);
 
 		// GUI anzeigen und Verhalten bei Interaktion festlegen
 		gui.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
@@ -65,13 +80,25 @@ public class Stundenplan implements SelectionListener {
 	 */
 	@Override
 	public void selectionChanged(String pList, String pNewValue) {
-        if (pList == "Lehrer") {
+		switch (pList) {
+		case "Lehrer":
 			// Zuerst alle bisherigen Stunden aus der GUI entfernen
 			gui.removeAllLessons();
 
 			// Neue Daten aus der Datenbank abfragen.
 			// Hier gefakte Daten, die Struktur der Datenbank ist nicht vorgegeben.
-            dbc.executeStatement("SELECT 0,'Q2','405',kuerzel,0,0,'Informatik',-16711936 FROM lehrer WHERE kuerzel = '" + pNewValue + "'");
+			dbc.executeStatement(
+					  "SELECT stunden.tag, stunden.stunde, faecher.name, raeume.nummer, klassen.jahrgang, klassen.buchstabe "
+					+ "FROM stunden "
+					+ "JOIN lehrer "
+					+ "ON lehrer.id = stunden.lehrer_id "
+					+ "JOIN faecher "
+					+ "ON faecher.id = stunden.fach_id "
+					+ "JOIN raeume "
+					+ "ON raeume.nummer = stunden.raum_nummer "
+					+ "JOIN klassen "
+					+ "ON klassen.id = stunden.klasse_id "
+					+ "WHERE lehrer.kuerzel = '" + pNewValue + "'");
 			QueryResult r = dbc.getCurrentQueryResult();
 
 			// Falls es ein Ergebnis gibt ...
@@ -81,13 +108,13 @@ public class Stundenplan implements SelectionListener {
 				// Neue Stunden in die GUI schreiben
 				for (int i = 0; i < data.length; i++) {
 					gui.addLesson(
-                        Integer.parseInt(data[i][4]), // Spalte im Plan (0=Montag, ... ,4=Freitag)
-                        Integer.parseInt(data[i][5]), // Zeile im Plan (0=1. Stunde, ... ,9=10. Stunde)
-                        data[i][6], // Titel
-                        "Raum " + data[i][2], // Untertitel
-                        data[i][1], // Beschreibungstext
-                        data[i][3], // Fußzeile
-                        new Color(Integer.parseInt(data[i][7])) // Farbe (Objekt der Klasse Color)
+							day(data[i][0]), // Spalte im Plan (0=Montag, ... ,4=Freitag)
+							Integer.parseInt(data[i][1]), // Zeile im Plan (0=1. Stunde, ... ,9=10. Stunde)
+							data[i][2], // Titel
+							"Raum " + data[i][3], // Untertitel
+							"Klasse " + data[i][4] + data[i][5], // Beschreibungstext
+							"", // Fußzeile
+							color(data[i][2]) // Farbe (Objekt der Klasse Color)
 					);
 				}
 
@@ -95,6 +122,139 @@ public class Stundenplan implements SelectionListener {
 				gui.revalidate();
 				gui.repaint();
 			}
+			break;
+		case "Klasse":
+			gui.removeAllLessons();
+			
+			char jahr = pNewValue.charAt(0);
+			char letter = pNewValue.charAt(1);
+			
+			dbc.executeStatement(
+					  "SELECT stunden.tag, stunden.stunde, faecher.name, raeume.nummer, lehrer.kuerzel "
+					+ "FROM stunden "
+					+ "JOIN faecher "
+					+ "ON faecher.id = stunden.fach_id "
+					+ "JOIN raeume "
+					+ "ON raeume.nummer = stunden.raum_nummer "
+					+ "JOIN lehrer "
+					+ "ON lehrer.id = stunden.lehrer_id "
+					+ "JOIN klassen "
+					+ "ON klassen.id = stunden.klasse_id "
+					+ "WHERE klassen.jahrgang = '" + jahr + "' "
+					+ "AND klassen.buchstabe = '" + letter + "'");
+			r = dbc.getCurrentQueryResult();
+			
+			if (r != null) {
+				String[][] data = r.getData();
+
+				// Neue Stunden in die GUI schreiben
+				for (int i = 0; i < data.length; i++) {
+					gui.addLesson(
+							day(data[i][0]), // Spalte im Plan (0=Montag, ... ,4=Freitag)
+							Integer.parseInt(data[i][1]), // Zeile im Plan (0=1. Stunde, ... ,9=10. Stunde)
+							data[i][2], // Titel
+							"Raum " + data[i][3], // Untertitel
+							data[i][4], // Beschreibungstext
+							"", // Fußzeile
+							color(data[i][2]) // Farbe (Objekt der Klasse Color)
+					);
+				}
+
+				// GUI-Fenster neu zeichnen, um neue Elemente anzuzeigen.
+				gui.revalidate();
+				gui.repaint();
+			}
+			break;
+		case "Raum":
+
+			gui.removeAllLessons();
+			
+			dbc.executeStatement(
+					  "SELECT stunden.tag, stunden.stunde, klassen.jahrgang, klassen.buchstabe, lehrer.kuerzel, faecher.name, raeume.typ, raeume.hat_klavier "
+					+ "FROM stunden "
+					+ "JOIN klassen "
+					+ "ON klassen.id = stunden.klasse_id "
+					+ "JOIN lehrer "
+					+ "ON lehrer.id = stunden.lehrer_id "
+					+ "JOIN faecher "
+					+ "ON faecher.id = stunden.fach_id "
+					+ "JOIN raeume "
+					+ "ON raeume.nummer = stunden.raum_nummer "
+					+ "WHERE raeume.nummer = '" + pNewValue + "'");
+			r = dbc.getCurrentQueryResult();
+			
+			if (r != null) {
+				String[][] data = r.getData();
+
+				// Neue Stunden in die GUI schreiben
+				for (int i = 0; i < data.length; i++) {
+					gui.addLesson(
+							day(data[i][0]), // Spalte im Plan (0=Montag, ... ,4=Freitag)
+							Integer.parseInt(data[i][1]), // Zeile im Plan (0=1. Stunde, ... ,9=10. Stunde)
+							data[i][2] + data[i][3], // Titel
+							data[i][4], // Untertitel
+							data[i][5], // Beschreibungstext
+							"(" + data[i][6] + (Integer.parseInt(data[i][7]) == 1 ? " + hat Klavier :" : "") + ")", // Fußzeile
+							color(data[i][5]) // Farbe (Objekt der Klasse Color)
+					);
+				}
+
+				// GUI-Fenster neu zeichnen, um neue Elemente anzuzeigen.
+				gui.revalidate();
+				gui.repaint();
+			}
+			break;
+		}
+	}
+	private int day(String day) {
+		switch (day) {
+		default:
+		case "mo":
+			return 0;
+		case "di":
+			return 1;
+		case "mi":
+			return 2;
+		case "do":
+			return 3;
+		case "fr":
+			return 4;
+		}
+	}
+	
+	private Color color(String fach) {
+		switch (fach) {
+		default:
+		case "Mathe":
+			return Color.BLUE;
+		case "Deutsch":
+			return Color.RED;
+		case "Englisch":
+			return new Color(0, 0, 160);
+		case "Latein":
+			return Color.CYAN;
+		case "Franzoesisch":
+			return Color.CYAN;
+		case "Geschichte":
+			return Color.GREEN;
+		case "Politik":
+			return Color.GRAY;
+		case "Biologie":
+			return Color.GREEN;
+		case "Chemie":
+			return Color.WHITE;
+		case "Physik":
+			return Color.BLACK;
+		case "Informatik":
+			return Color.BLACK;
+		case "Philosophie":
+			return Color.MAGENTA;
+		case "Musik":
+			return Color.YELLOW;
+		case "Kunst":
+			return Color.LIGHT_GRAY;
+		case "Sport":
+			return Color.ORANGE;
 		}
 	}
 }

Stundenplan/src/StundenplanGUI.java

@@ -184,6 +184,7 @@ public class StundenplanGUI extends JFrame implements ActionListener {
      */
     public void actionPerformed(ActionEvent pActionEvent) {
         if (this.selectionListener != null) {
+            @SuppressWarnings("unchecked")
 			JComboBox<String> source = ((JComboBox<String>) pActionEvent.getSource());
 
             String newValue = (String) source.getSelectedItem();

faecher.csv

@@ -0,0 +1 @@
+name,ist_hauptfach

klassen.csv

@@ -1,25 +1,48 @@
-bezeichner,jahrgang,zug
-05a,5,a
-05b,5,b
-05c,5,c
-05d,5,d
-06a,6,a
-06b,6,b
-06c,6,c
-06d,6,d
-07a,7,a
-07b,7,b
-07c,7,c
-07d,7,d
-08a,8,a
-08b,8,b
-08c,8,c
-08d,8,d
-09a,9,a
-09b,9,b
-09c,9,c
-09d,9,d
-EFa,10,a
-EFb,10,b
-EFc,10,c
-EFd,10,d
+mitglieder,jahrgang,buchstabe
+15,5,a
+20,5,b
+18,5,c
+24,5,d
+15,6,a
+29,6,b
+18,6,c
+23,6,d
+22,7,a
+21,7,b
+17,7,c
+15,7,d
+15,8,a
+26,8,b
+17,8,c
+21,8,d
+29,9,a
+19,9,b
+18,9,c
+27,9,d
+23,10,a
+19,10,b
+19,10,c
+20,10,d
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+

lehrt.csv

@@ -0,0 +1,235 @@
+lehrer_id,fach_id
+76,12
+73,10
+27,13
+14,3
+12,3
+24,7
+56,15
+29,15
+21,15
+6,2
+82,10
+79,2
+59,9
+84,10
+15,8
+80,4
+56,5
+19,8
+87,9
+92,15
+16,15
+76,2
+75,11
+48,9
+27,5
+55,5
+11,13
+71,6
+83,5
+89,8
+27,14
+66,12
+36,6
+4,7
+94,9
+41,14
+32,11
+73,7
+48,13
+92,2
+88,7
+90,11
+26,8
+6,8
+24,14
+18,10
+54,9
+89,10
+6,4
+17,1
+67,10
+79,14
+95,11
+46,12
+46,8
+42,4
+21,4
+48,1
+52,2
+25,5
+69,7
+51,6
+60,13
+72,7
+14,12
+32,6
+59,4
+81,8
+74,7
+95,12
+16,5
+34,10
+65,13
+58,9
+88,12
+13,1
+37,1
+72,12
+96,3
+71,15
+15,2
+78,4
+75,8
+79,9
+44,7
+44,3
+8,14
+94,12
+7,5
+40,3
+14,13
+61,8
+18,13
+96,6
+18,6
+8,3
+58,15
+39,14
+60,7
+69,15
+81,9
+59,15
+13,7
+22,1
+35,3
+64,11
+92,11
+45,1
+48,5
+25,11
+32,14
+39,2
+49,14
+19,13
+36,7
+15,11
+20,13
+51,1
+82,9
+28,5
+91,12
+84,4
+21,11
+61,15
+84,7
+96,2
+26,15
+41,1
+72,5
+7,7
+61,13
+10,15
+9,9
+73,2
+70,1
+82,3
+53,14
+11,4
+4,4
+15,14
+18,7
+48,11
+59,14
+20,5
+3,8
+71,12
+12,10
+75,5
+16,3
+26,4
+50,4
+62,11
+6,9
+10,8
+7,9
+63,1
+1,6
+51,11
+57,13
+15,1
+61,6
+3,7
+26,13
+1,9
+55,2
+34,14
+49,9
+37,14
+41,4
+27,8
+67,12
+8,4
+29,11
+54,14
+4,1
+86,8
+85,15
+79,5
+14,14
+96,1
+38,14
+66,15
+39,4
+82,6
+65,6
+21,7
+26,12
+78,3
+52,4
+7,10
+95,7
+19,2
+94,2
+8,2
+11,5
+92,6
+54,6
+42,7
+55,14
+56,14
+95,1
+34,2
+83,9
+9,8
+64,15
+83,3
+40,6
+5,8
+63,10
+27,6
+72,11
+40,5
+12,12
+96,14
+30,2
+86,2
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raeume.csv

@@ -1,101 +0,0 @@
-number,type,has_piano
-101,,
-102,,
-103,,
-104,,
-105,,
-106,,
-107,,
-108,,
-109,,
-110,,
-111,,
-112,,
-113,,
-114,,
-115,,
-116,,
-117,,
-118,,
-119,,
-120,,
-121,,
-122,,
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-203,,
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-206,,
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-213,,
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-215,,
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-220,,
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-222,,
-223,,
-224,,
-301,,
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-410,,
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-413,,
-414,,
-415,,
-416,,
-417,,
-418,,
-419,,
-420,,
-421,,
-422,,
-423,,
-424,,
-501,,
-033a,,
-033b,,
-25,,

raueme.csv

@@ -0,0 +1,101 @@
+nummer,typ,hat_klavier
+101,normal,0
+102,normal,0
+103,normal,0
+104,normal,0
+105,normal,0
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+116,normal,0
+117,normal,0
+118,normal,0
+119,normal,0
+120,normal,1
+121,normal,0
+122,normal,0
+123,normal,0
+124,normal,0
+201,normal,0
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+203,normal,0
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+205,normal,0
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+207,normal,0
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+211,normal,0
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+213,chemie,0
+214,normal,0
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+217,normal,0
+218,normal,0
+219,biologie,0
+220,normal,0
+221,normal,0
+222,kunst,0
+223,normal,0
+224,normal,0
+301,normal,0
+302,normal,0
+303,normal,0
+304,normal,0
+305,normal,0
+306,normal,0
+307,normal,0
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+401,biologie,0
+402,normal,0
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+405,normal,0
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+408,normal,0
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+410,normal,0
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+422,normal,0
+423,normal,0
+424,musik,1
+501,physik,0
+033a,normal,0
+033b,normal,0
+25,normal,0

stunden.csv

@@ -0,0 +1,817 @@
+tag,stunde,klasse_id,lehrer_id,fach_id,raum_nummer
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