Re: model for entity with checkgroup (user roles relation)

[Timo Rantalaiho]

On Sat, 07 Mar 2009, Francisco Diaz Trepat - gmail wrote:
> I would like to have a form with a checkgroup to be able to select which
> roles a user have.

I would have CheckBoxes with IModel bound to each
role so that they would do

  @Override
  public Boolean getObject() {
  return user.hasRole(thisRole);
  }

  @Override
  public void setObject(Boolean selected) {
 if (selected) {
 user.addRole(thisRole);
 } else {
 user.removeRole(thisRole);
 }
  }

Best wishes,
Timo


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model for entity with checkgroup (user roles relation)

[Francisco Diaz Trepat - gmail]

Hi all, it probably that this has been answered in the list, but I can't
figure out how to construct the query for gmail (I've been on the list for
some time now).

I have the following feature I don't know how to resolve. I am using wicket
1.4rc2 with activeobjects (orm).

I have User and Role entities, and User has a manytomany relationship.

I would like to have a form with a checkgroup to be able to select which
roles a user have.

User has:
String name
String password
@ManyToMany(UserRole.class)
Role[] roles

Role has:
String name

and UserRole has:
User user
Role role

all with corresponding setters and getters.

How could I combine this entities to develop a form in which user could see:
TextField
PasswordTextField
CheckGroup (with the names of the roles available)
?

Thanks
f(t)

PS: some extra info.

this is my model and form (comments other than the question would be grate
also):

  //create user entity model
  userModel = new LoadableDetachableModel() {
 private static final long serialVersionUID = 0L;

 @Override
 protected SqsUser load() {
Session session;
session = (Session) getSession();
SqsUser user;
if (selectedUser != null)
   return selectedUser;
user = null;
try {
   user = session.getEntityManager().create(SqsUser.class);
} catch (SQLException ex) {

Logger.getLogger(UsersPanel.class.getName()).log(Level.SEVERE, null, ex);
}
if (user != null)
   selectedUser = user;
return user;
 }
  };

  //create user form overriding process to begin transaction
  usersForm = new Form("users-form", new
CompoundPropertyModel(userModel)) {
 private static final long serialVersionUID = 0L;
 private Transaction transaction;

 @Override
 public void process(IFormSubmittingComponent submittingComponent) {

super.process(submittingComponent);
transaction = new Transaction(((Session)
getSession()).getEntityManager()) {
   @Override
   protected SqsUser run() throws SQLException {
  SqsUser user = getModelObject();
  user.save();
  return user;
   }
};
 }

 @Override
 protected void onSubmit() {
try {
   transaction.execute();
} catch (SQLException ex) {

Logger.getLogger(UsersPanel.class.getName()).log(Level.SEVERE, null, ex);
   onError();
}
 }

 @Override
 protected void onError() {

 }
  };