Quick question. This hasn't happened to me before when working with SelectOneMenu. This is my code.
<h:outputLabel for="listaRegiones" value="Región: " />
<p:selectOneMenu id="listaRegiones" value="#{nuevaProvincia.regionSelect}" required="true">
<f:selectItems value="#{nuevaProvincia.regiones}" />
</p:selectOneMenu>
<p:message for="listaRegiones" />
And this is my backing bean.
@ManagedBean(name="nuevaProvincia")
@ViewScoped
public class nuevaProvincia implements Serializable {
public static final long serialVersionUID = 1L;
public nuevaProvincia() throws DAOException {
this.provincia = new Provincia();
this.regiones = new ArrayList<SelectItem>();
ArrayList<Region> regs = new ArrayList<Region>();
try
{
regs = Region.obtenerRegiones();
}
catch(DAOException e)
{
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL, "Hubo un error: "+e.getMessage(), "Hubo un error: "+e.getMessage()));
}
if(regs.size()>0)
{
for(Region r : regs)
{
SelectItem item = new SelectItem(r.getCodigo(), r.getNombre());
regiones.add(item);
}
this.regionSelect = regs.get(0).getCodigo();
}
else
this.regionSelect = "";
}
public void verificaProvincia() throws DAOException {
provincia.getRegion().setCodigo(regionSelect);
try
{
if(this.provincia.estaCreado())
FacesContext.getCurrentInstance().addMessage("frmIngProvincia:provCodigo", new FacesMessage(FacesMessage.SEVERITY_WARN, "El código de provincia ingresado ya existe.", "El código de provincia ingresado ya existe."));
else
FacesContext.getCurrentInstance().addMessage("frmIngProvincia:provCodigo", new FacesMessage(FacesMessage.SEVERITY_INFO, "El código de provincia ingresado no existe.", "El código de provincia ingresado no existe."));
}
catch(DAOException e)
{
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_FATAL, "Hubo un error: "+e.getMessage(), "Hubo un error: "+e.getMessage()));
}
}
public void insertaProvincia() throws DAOException {
try
{
provincia.getRegion().setCodigo(regionSelect);
provincia.guardar();
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_INFO, "Provincia ingresada con éxito", "Provincia ingresada con éxito"));
}
catch(DAOException e)
{
FacesContext.getCurrentInstance().addMessage(null, new FacesMessage(FacesMessage.SEVERITY_ERROR, "Hubo un error: "+e.getMessage(), "Hubo un error: "+e.getMessage()));
throw e;
}
}
//Getters and setters for everything
//Privados
private Provincia provincia;
private String regionSelect;
private List<SelectItem> regiones;
}
The problem is as follows: whenever I change the value in my selectonemenu, the value in the backing bean is not being set (although I do have a setter for regionSelect
). Why would this happen?
I found the error and it was ... quite strange and circumstantial. I added the following line inside the SelectOneMenu:
<p:ajax event="change" update="@this" />
and now it works just fine.