DataTable - Add Row
A new row can be added by clicking the Add new button.
Documentation
<h:form id="form">
<p:growl id="msgs" showDetail="true"/>
<p:dataTable id="cars1" widgetVar="cars1" var="car" value="#{dtAddRowView.cars1}" editable="true" style="margin-bottom:20px">
<f:facet name="header">
Row Editing with add functionality
</f:facet>
<p:ajax event="rowEdit" listener="#{dtAddRowView.onRowEdit}" update=":form:msgs" />
<p:ajax event="rowEditCancel" listener="#{dtAddRowView.onRowCancel}" update=":form:msgs" />
<p:column headerText="Id">
<p:cellEditor>
<f:facet name="output"><h:outputText value="#{car.id}" /></f:facet>
<f:facet name="input"><p:inputText id="modelInput" value="#{car.id}" style="width:100%"/></f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Year">
<p:cellEditor>
<f:facet name="output"><h:outputText value="#{car.year}" /></f:facet>
<f:facet name="input"><p:inputText value="#{car.year}" style="width:100%" label="Year"/></f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Brand">
<p:cellEditor>
<f:facet name="output"><h:outputText value="#{car.brand}" /></f:facet>
<f:facet name="input">
<h:selectOneMenu value="#{car.brand}" style="width:100%">
<f:selectItems value="#{dtEditView.brands}" var="man" itemLabel="#{man}" itemValue="#{man}" />
</h:selectOneMenu>
</f:facet>
</p:cellEditor>
</p:column>
<p:column headerText="Color">
<p:cellEditor>
<f:facet name="output"><h:outputText value="#{car.color}" /></f:facet>
<f:facet name="input">
<h:selectOneMenu value="#{car.color}" style="width:100%">
<f:selectItems value="#{dtEditView.colors}" var="color" itemLabel="#{color}" itemValue="#{color}" />
</h:selectOneMenu>
</f:facet>
</p:cellEditor>
</p:column>
<p:column style="width:32px">
<p:rowEditor />
</p:column>
</p:dataTable>
<div class="ui-g">
<div class="ui-g-12">
<p:commandButton value="Add new row" styleClass="ui-priority-primary" process="@this" update=":form:msgs"
action="#{dtAddRowView.onAddNew()}" oncomplete="PF('cars1').addRow();"/>
</div>
</div>
</h:form>
@Named("dtAddRowView")
@ViewScoped
public class AddRowView implements Serializable {
private List<Car> cars1;
@Inject
private CarService service;
@PostConstruct
public void init() {
cars1 = service.createCars(15);
}
public List<Car> getCars1() {
return cars1;
}
public List<String> getBrands() {
return service.getBrands();
}
public List<String> getColors() {
return service.getColors();
}
public void setService(CarService service) {
this.service = service;
}
public void onRowEdit(RowEditEvent<Car> event) {
FacesMessage msg = new FacesMessage("Car Edited", event.getObject().getId());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onRowCancel(RowEditEvent<Car> event) {
FacesMessage msg = new FacesMessage("Edit Cancelled", event.getObject().getId());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onAddNew() {
// Add one new car to the table:
Car car2Add = service.createCars(1).get(0);
cars1.add(car2Add);
FacesMessage msg = new FacesMessage("New Car added", car2Add.getId());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}
@Named
@ApplicationScoped
public class CarService {
private final static String[] colors;
private final static String[] brands;
static {
colors = new String[10];
colors[0] = "Black";
colors[1] = "White";
colors[2] = "Green";
colors[3] = "Red";
colors[4] = "Blue";
colors[5] = "Orange";
colors[6] = "Silver";
colors[7] = "Yellow";
colors[8] = "Brown";
colors[9] = "Maroon";
brands = new String[10];
brands[0] = "BMW";
brands[1] = "Mercedes";
brands[2] = "Volvo";
brands[3] = "Audi";
brands[4] = "Renault";
brands[5] = "Fiat";
brands[6] = "Volkswagen";
brands[7] = "Honda";
brands[8] = "Jaguar";
brands[9] = "Ford";
}
public List<Car> createCars(int size) {
List<Car> list = new ArrayList<Car>();
for(int i = 0 ; i < size ; i++) {
list.add(new Car(getRandomId(), getRandomBrand(), getRandomYear(), getRandomColor(), getRandomPrice(), getRandomSoldState()));
}
return list;
}
private String getRandomId() {
return UUID.randomUUID().toString().substring(0, 8);
}
private int getRandomYear() {
return (int) (Math.random() * 50 + 1960);
}
private String getRandomColor() {
return colors[(int) (Math.random() * 10)];
}
private String getRandomBrand() {
return brands[(int) (Math.random() * 10)];
}
private int getRandomPrice() {
return (int) (Math.random() * 100000);
}
private boolean getRandomSoldState() {
return (Math.random() > 0.5) ? true: false;
}
public List<String> getColors() {
return Arrays.asList(colors);
}
public List<String> getBrands() {
return Arrays.asList(brands);
}
}
@Named("dtEditView")
@ViewScoped
public class EditView implements Serializable {
private List<Car> cars1;
private List<Car> cars2;
@Inject
private CarService service;
@PostConstruct
public void init() {
cars1 = service.createCars(10);
cars2 = service.createCars(10);
}
public List<Car> getCars1() {
return cars1;
}
public List<Car> getCars2() {
return cars2;
}
public List<String> getBrands() {
return service.getBrands();
}
public List<String> getColors() {
return service.getColors();
}
public void setService(CarService service) {
this.service = service;
}
public void onRowEdit(RowEditEvent<Car> event) {
FacesMessage msg = new FacesMessage("Car Edited", event.getObject().getId());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onRowCancel(RowEditEvent<Car> event) {
FacesMessage msg = new FacesMessage("Edit Cancelled", event.getObject().getId());
FacesContext.getCurrentInstance().addMessage(null, msg);
}
public void onCellEdit(CellEditEvent event) {
Object oldValue = event.getOldValue();
Object newValue = event.getNewValue();
if(newValue != null && !newValue.equals(oldValue)) {
FacesMessage msg = new FacesMessage(FacesMessage.SEVERITY_INFO, "Cell Changed", "Old: " + oldValue + ", New:" + newValue);
FacesContext.getCurrentInstance().addMessage(null, msg);
}
}
}
