SelectableItem problem

[zealot]

Hi everyone!

i have some strange problem (on example DVDstore such code working)

i have list of SelectableItems

public class SelectableItem<SiteProduct> implements Serializable {
 SiteProduct item;
 boolean selected = false;

 public SelectableItem(SiteProduct item) { this.item = item; }

 public SiteProduct getItem() { return item; }

 public void setItem(SiteProduct item) { this.item = item; }

 public boolean getSelected() { System.err.println("getSelected() " + selected); return selected; }

 public void setSelected(boolean val) { this.selected=val; System.err.println("setSelected() " + val);}

 public String toString() {
 return super.toString() + "[selected=" + selected + "]";
 }
}

it exposes on form

@Stateful
@Name("productOrdering")
@Interceptor(SeamInterceptor.class)
@Conversational(ifNotBegunOutcome="main")
@LoggedIn
public class ProductOrderingAction implements ProductOrdering, Serializable {
 private static final Logger log = Logger.getLogger(ProductOrdering.class);

 @PersistenceContext(type=EXTENDED)
 private EntityManager em;

 private String searchString;

 @Out
 public List<SelectableItem<SiteProduct>> products;

......

public List getProducts() {
 return products;
}
public String addToCart() {
 log.info("Started adding to cart");
 if (products == null) {
 log.info("products null");
 return null;
 }
 for (SelectableItem<SiteProduct> item: products) {
 log.info("flag " + item.getSelected());
 if (item.getSelected()) {
 item.setSelected(false);
 log.info("????????? ? ??????? " + item.getItem().getName());
 cartService.addProduct(item.getItem(), new Double(1));

 }
 }
 return null;
}

}

.xhtml code:

<ui:define name="content">
<div class="section">
 <h1>Search Products</h1>
 <h:form>
 <fieldset>
 <h:inputText value="#{productOrdering.searchString}" style="width: 165px;" />
 <h:commandButton value="Find Products" action="#{productOrdering.find}" styleClass="button" />
 </fieldset>
 </h:form>
</div>
<div class="section">
 <h:outputText value="No Products Found" rendered="#{productOrdering.products != null and empty productOrdering.products}"/>
 <h:form rendered="#{not empty productOrdering.products}">
 <h:dataTable value="#{productOrdering.products}" var="prod">
 <h:column>
 <f:facet name="header">V</f:facet>
 <h:selectBooleanCheckbox rendered="#{!empty(prod.item.price)}" value="#{prod.selected}"/>
 </h:column>
 <h:column>
 <f:facet name="header">Id</f:facet>
 #{prod.item.markingOfGoods}
 </h:column>
 <h:column>
 <f:facet name="header">Name</f:facet>
 #{prod.item.name}
 </h:column>
 <h:column>
 <f:facet name="header">Unit</f:facet>
 #{prod.item.unit}
 </h:column>
 <h:column>
 <f:facet name="header">Price</f:facet>
 #{prod.item.price}
 </h:column>
 <h:column>
 <f:facet name="header">Action</f:facet>
 <h:commandLink action="#{productOrdering.selectProduct}">View Product</h:commandLink>
 </h:column>
 </h:dataTable>
 <fieldset>
 <h:commandButton value="Add selected to cart" action="#{productOrdering.addToCart}" styleClass="button" />
 </fieldset>
 </h:form>
</div>

but when i select some products and trying to "add them to cart" seems like no one is selected

help me please, suffer all day

--Andrew

[lcoetzee]

Hi Andrew

based on my previous learning I think you should declare a getter/setter for those elements associated with selects (selectBooleanCheckbox) that you want to access in the view, and not use the @Out tag ...

e.g.
//No bijection stuff
public List<SelectableItem> products;

and in your interface (ProductOrdering) declare the getProducts/setProducts with the implementation in ProductOrderingAction.

Regards

Louis

[norman.richards]

I recommend using @DataModel instead of @Out. Then just reference #{products} in your datamodel. I've updated the dvd store to use @DataModel now.

[zealot]

Thanks Norman

i changes my @Out to @DataModel
Everything fine now. But @DataModel vas serious limitation - i can use only one @DataModel in every bean.
Can i ask, when this limitation will be removed?

Using more then one @DataModel in bean will be nice :-)

--Andrew

[gavin.king]

Yes, there is an existing feature request in JIRA to support >1 @DataModel