Passing parameters to PrimeFaces Star Rating component?

Question

I\'m trying to make use of the Star Rating component from PrimeFaces. However, it does not allow you to pass in parameters. That makes it impossible for me to do a lookup

Answer 1

f:viewParam lets you pass request parameters to bean properties

<f:metadata>
  <f:viewParam name="myObjID" value="#{myObj.id}"/>
</f:metdata>

id gets set in the MyObj Bean on page load

<p:rating rateListener="#{myObj.myRating}" />

Since your bean has the id, when the rateListener method is called the id can be used to save the rating to the database

Answer 2

I finally figured out how to do this...

<h:form>
   <p:rating value="#{myAction.rating}" />
   <input type="hidden" name="selectedObj" value="#{myObj.id}" />
</h:form>

Then, in my action class, I'm able to get the value for selectedObj by doing this...

String selectedObjID = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap().get("selectedObj");

Piece of cake!

Answer 3

I solved it as follows:

<h:form>
    <p:rating id="rate" value="#{userHomeControllerBean.rating}">
        <f:param name="contentId" value="#{sharedcontent.content.id}" />
        <p:ajax event="rate" listener="#{userHomeControllerBean.onrate}" update="rate" />
        <p:ajax event="cancel" listener="#{userHomeControllerBean.oncancel}" update="rate" />
    </p:rating>
</h:form>

In my backing bean, I'm able to get the value for contentId as follows:

Map<String, String> params = FacesContext.getCurrentInstance().getExternalContext().getRequestParameterMap();
int contentId = Integer.parseInt(params.get("contentId"));

Answer 4

have you tried to use f:setPropertyActionListener in your button so that you can send any parameter you want to your action class? or you have to do it inside the p:rating?

or you can do something like

private Rating rating;

//getter -setter

and in your action bean, you can access this value ((UIParameter)rating.getChildren().get(0)).getValue();

if this is the case, you may be doing sth wrong as this shouldn't be the case while you are using JSF.

just my two cents...