HTML and CSS Reference
In-Depth Information
As shown in the bolded lines, the Action column shows the available action based on the user role using
#{request.isUserInRole}
:
If the user is a member in
•
megaAppUser
group (i.e., Mega App user) and
#{bookRequestsBacking.status}
is equal to
3
(approved), then the only available action is
"Download Book"
.
If the user is a member in
megaAppAdmin
group (i.e., Mega App administrator), then the
available actions are
"Download Book"
for all the topic request statuses,
"Approve Request"
,
and
"Reject Request"
if
#{bookRequestsBacking.status}
equals to
1
(pending).
In all of the operations inside data table (
"Approve Request"
,
"Reject Request"
, and
"Download Book"
), a
property action listener is executed in order to bind the currently selected book request (
#{bookRequest}
) with the
(
#{bookRequestsBacking.selectedBookRequest}
) property before performing the actual action. Listing 13-29 shows
BookRequestsBacking
CDI bean.
•
Listing 13-29.
BookRequestsBacking
CDI Bean
package com.jsfprohtml5.megaapp.backing;
import com.jsfprohtml5.megaapp.model.Book;
import com.jsfprohtml5.megaapp.model.BookRequest;
import com.jsfprohtml5.megaapp.model.Constants;
import com.jsfprohtml5.megaapp.service.BookManagerLocal;
import com.jsfprohtml5.megaapp.service.BookRequestManagerLocal;
import com.jsfprohtml5.megaapp.service.exception.BookNotFound;
import com.jsfprohtml5.megaapp.service.exception.BookRequestNotFound;
import java.io.IOException;
import java.io.OutputStream;
import java.io.Serializable;
import java.util.List;
import java.util.logging.Level;
import java.util.logging.Logger;
import javax.ejb.EJB;
import javax.faces.application.FacesMessage;
import javax.faces.context.ExternalContext;
import javax.faces.event.ComponentSystemEvent;
import javax.inject.Named;
import javax.faces.view.ViewScoped;
@Named
@ViewScoped
public class BookRequestsBacking extends BaseBacking implements Serializable {
@EJB
private BookManagerLocal bookManager;
@EJB
private BookRequestManagerLocal bookRequestManager;
private List<BookRequest> bookRequestList;
private BookRequest selectedBookRequest;
private int status = 1;
private String infoMessage;
