How to use href inside rich:column? - jsf

Question

I'm new to xhtml and I am trying to use href inside a table's cell via a certain name(auction's name in my case). When I press the auction's name, I want to be send inside another page for adding a bid, seeing hightest bid and so on. It just shows me the last panel Group from the referenced page(where it says: No bids for this auction).
Can someone help me please ?
the code from rich:column is auctionList.xhtml:
<composite:implementation>
<rich:dataTable id="auctionsTable" rows="6" value="#{cc.attrs.auctions}" var="auct" border="1" styleClass="flat list auctions" rendered="#{cc.attrs.rendered and not empty cc.attrs.auctions}">
<f:facet name="header">
<rich:dataScroller forComponent="auctionsTable" />
</f:facet>
<h:link outcome="/destination" value="link" />
<rich:column sortBy="#{auct.name}" sortOrder="ascending" >
<a href="detail.xhtml">
#{auct.name}
</a>
</rich:column>
and detail.xhml is:
<ui:composition>
<h2>Details</h2>
<h:panelGroup layout="div"
rendered="#{auctionManager.currentAuction != null}">
<a4j:poll interval="3000" render="highestBidOutput, bidHistory" action="#{auctionManager.refreshAuction(currentAuction)}" />
<h3>#{currentAuction.name}</h3>
<h:panelGrid>
<h:column>
<h:outputLabel value="ID:" />
<h:outputText value="#{currentAuction.id}" />
</h:column>
<h:column>
<h:outputLabel value="Owner:" />
<h:outputText value="#{currentAuction.owner.name}" />
</h:column>
<h:column>
<h:outputLabel value="Original price:" />
<h:outputText value="#{currentAuction.originalPrice}" />
</h:column>
<h:column>
<h:outputLabel value="Description:" />
<h:outputText value="#{currentAuction.description}" />
</h:column>
<h:column>
<h:outputLabel value="Location:" />
<h:outputText value="#{currentAuction.location}" />
</h:column>
</h:panelGrid>
<h:panelGrid columns="2">
<h:outputLabel value="Highest bid:"
rendered="#{not empty currentAuction.highestBid}" />
<h:outputText id="highestBidOutput"
value="#{currentAuction.highestBid.amount} (#{currentAuction.highestBid.bidder.name})"
rendered="#{not empty currentAuction.highestBid}" />
<h:outputLabel value="Bid" rendered="#{loginManager.logged}" />
<h:form rendered="#{loginManager.logged}">
<h:inputText id="bidAmountInput" value="#{bidAmount}"
validator="#{bidValidator.validateBid}" />
<h:commandButton value="Add"
action="#{auctionManager.addBid(bidAmount)}" />
<h:messages style="color: red" />
</h:form>
</h:panelGrid>
<h:panelGroup id="bidHistory" rendered="#{not empty currentAuction.bids}">
<h3>Bids</h3>
<h:dataTable var="offer" value="#{currentAuction.bids}" border="1"
styleClass="flat">
<h:column>#{offer.bidder.name}</h:column>
<h:column>#{offer.amount}</h:column>
</h:dataTable>
</h:panelGroup>
</h:panelGroup>
<h:panelGroup layout="div"
rendered="#{auctionManager.currentAuction == null}">
<p>No bids for given auction.</p>
</h:panelGroup>
and AuctionManagerImpl.java used in detail.xhtml:
private static final long serialVersionUID = 1L;
private Auction currentAuction = null;
#PersistenceContext(type=PersistenceContextType.EXTENDED)
private EntityManager em;
#Inject
private LoginManager loginManagerBean;
#Resource SessionContext sessionContext;
#Produces
#Named
#Dependent
#CurrentAuction
#PermitAll
public Auction getCurrentAuction() {
if (currentAuction != null && !em.contains(currentAuction)) {
currentAuction = em.merge(currentAuction);
}
return currentAuction;
}
#PermitAll
public Long getCurrentAuctionId() {
return (currentAuction == null) ? null : currentAuction.getId();
}
#PermitAll
public void setCurrentAuctionId(Long currentId) {
this.currentAuction = em.find(Auction.class, currentId);
}
#PermitAll
public List<Auction> getAll() {
return em.createQuery("SELECT a FROM Auction a", Auction.class)
.getResultList();
}
#PermitAll
public List<Auction> getAuctionsWinningByUser(User user) {
String jql = "SELECT auction FROM Auction auction, User user "
+ "WHERE user=:user AND auction.highestBid member of user.bids "
+ "ORDER BY auction.id";
TypedQuery<Auction> query = em.createQuery(jql, Auction.class);
query.setParameter("user", user);
List<Auction> auctions = query.getResultList();
return auctions;
}
#PermitAll
public List<Auction> getAuctionLoosingByUser(User user) {
String jql = "SELECT DISTINCT auction FROM User user "
+ "JOIN user.bids bid JOIN bid.auction auction "
+ "WHERE user=:user AND auction.highestBid.bidder != user "
+ "ORDER BY auction.id";
TypedQuery<Auction> query = em.createQuery(jql, Auction.class);
query.setParameter("user", user);
List<Auction> auctions = query.getResultList();
return auctions;
}
#PermitAll
public void refreshAuction(Auction auction) {
em.refresh(auction);
}
//#PermitAll
public void addBid(long bidAmount) {
if (sessionContext.getCallerPrincipal() == null) {
throw new IllegalStateException(
"user must be logged in order to add bid");
}
if (currentAuction == null) {
throw new IllegalStateException(
"currentAuction have to be selected in order to add bid");
}
Bid bid = new Bid(loginManagerBean.getCurrentUser(), currentAuction, bidAmount);
em.persist(bid);
em.flush();
em.refresh(bid);
}
}
also very important is list.xhtml where I make use of auctionList.xhtml:
<ui:composition template="templates/home.xhtml">
<ui:param name="activeTab" value="list" />
<ui:define name="content">
<h2>Auction List</h2>
<a:auctionList auctions="#{auctionManager.all}" />
</ui:define>

Answer 1

Basicaly you need put a value in the request and redirect to destination page, using JSF, a method that have a String, implicitly return a navigation, you can make this in this way:
public String sendToPageAndPutValue(){
FacesContext.getCurrentInstance().getExternalContext().getFlash().put(paramName, paramValue);
return "pageDestination.xhtml";
}
To recover this value in destination Bean you can make this:
FacesContext.getCurrentInstance().getExternalContext().getFlash().get("paramName")
check in your bean.:
#Named -> javax.inject.Named
#ViewScoped -> org.omnifaces.cdi.ViewScoped
public class YourBean
In the your xhtml, you need call this method in a h:commandButton or a4j:commandButton using the property action
<h:commanButton id="idButton" value="Send" execute="#this" action="#{yourBean.sendToPageAndPutValue()}"/>