improved car management

pom.xml

@@ -4,7 +4,7 @@
 	<modelVersion>4.0.0</modelVersion>
 	<groupId>de.srsoftware</groupId>
 	<artifactId>web4rail</artifactId>
-	<version>1.0.9</version>
+	<version>1.0.10</version>
 	<name>Web4Rail</name>
 	<packaging>jar</packaging>
 	<description>Java Model Railway Control</description>

src/main/java/de/srsoftware/web4rail/moving/Car.java

@@ -80,8 +80,8 @@ public class Car extends BaseClass implements Comparable<Car>{
 		return t("Unknown action: {}",params.get(ACTION));
 	}
 
-	public static Car get(Object id) {
-		return cars.get(Integer.parseInt(""+id)); // try to get by id
+	public static Car get(Object id) {		
+		return isNull(id) ? null : cars.get(Integer.parseInt(""+id)); // try to get by id
 	}
 
 	
@@ -224,6 +224,10 @@ public class Car extends BaseClass implements Comparable<Car>{
 	public String toString() {
 		return name;
 	}
+	
+	public Train train() {
+		return train;
+	}
 
 	public void train(Train train) {
 		this.train = train;

src/main/java/de/srsoftware/web4rail/moving/Locomotive.java

@@ -127,7 +127,8 @@ public class Locomotive extends Car implements Constants,Device{
 
 	
 	public Object faster(int steps) {
-		return setSpeed(speed + steps);
+		setSpeed(speed + steps);
+		return properties();
 	}
 	
 	public static Locomotive get(Object id) {		
@@ -286,7 +287,7 @@ public class Locomotive extends Car implements Constants,Device{
 	
 	public Object stop() {
 		setSpeed(0);
-		return t("Stopped {}",this);
+		return properties();
 	}
 	
 	private Object toggleFunction(int f) {

src/main/java/de/srsoftware/web4rail/moving/Train.java

@@ -185,6 +185,7 @@ public class Train extends BaseClass implements Comparable<Train> {
 		if (car instanceof Locomotive) {
 			locos.add((Locomotive) car);
 		} else cars.add(car);
+		car.train(this);
 		return props();
 	}
 
@@ -223,7 +224,7 @@ public class Train extends BaseClass implements Comparable<Train> {
 		new Input(ID,id).hideIn(addCarForm);
 		Select select = new Select(CAR_ID);
 		for (Car car : Car.list()) {
-			if (!this.cars.contains(car)) select.addOption(car.id(), car+(car.stockId.isEmpty()?"":" ("+car.stockId+")"));
+			if (isNull(car.train())) select.addOption(car.id(), car+(car.stockId.isEmpty()?"":" ("+car.stockId+")"));
 		}
 		if (!select.children().isEmpty()) {
 			select.addTo(addCarForm);
@@ -283,10 +284,16 @@ public class Train extends BaseClass implements Comparable<Train> {
 	}
 		
 	private Object dropCar(HashMap<String, String> params) {
-		String carId = params.get(CAR_ID);
-		if (isSet(carId)) cars.remove(Car.get(carId));
-		String locoId = params.get(LOCO_ID);
-		if (isSet(locoId)) locos.remove(Car.get(locoId));
+		Car car = Car.get(params.get(CAR_ID));
+		if (isSet(car)) {
+			cars.remove(car);
+			car.train(null);
+		}
+		Locomotive loco = Locomotive.get(params.get(LOCO_ID));
+		if (isSet(loco)) {
+			locos.remove(loco);
+			loco.train(null);
+		}
 		return props();
 	}
 	
@@ -411,7 +418,7 @@ public class Train extends BaseClass implements Comparable<Train> {
 		new Input(ID,id).hideIn(addLocoForm);
 		Select select = new Select(CAR_ID);
 		for (Car loco : Locomotive.list()) {
-			if (!this.locos.contains(loco)) select.addOption(loco.id(), loco);
+			if (isNull(loco.train())) select.addOption(loco.id(), loco);
 		}
 		if (!select.children().isEmpty()) {
 			select.addTo(addLocoForm);