You don't have to put the values not on the form in
hidden fields: if you have the ID then you re-attach
the Hibernate object, set the new values that were on
the form, and update.
Unless you keep the actual object in session (whether
you do it via ScopedModelDriven or not isn't
relevant), or never detach it from the Hibernate
session, I'm not sure what else you can do
d.
--- kaouki <[EMAIL PROTECTED]> wrote:
>
> I would like to find a better way to do that ... if
> it is possible ...
> Because I would have the same probleme with all my
> beans (Hibernate
> entities).
>
> If I want to render an entity bean E in my view
> (with 4 or 5 properties,
> nested beans or not), and the user updates 2
> properties and submits the
> form, I get E with the 2 updated properties but the
> others are set to null.
> So I can not merge my udpated entity (in my
> Hibernate Dao) ...
>
> Is there a solution to avoid that ? Perhaps by using
> interceptors like
> Preparable or ModelDriven ?
>
>
> Igor Vlasov wrote:
> >
> > I think you must put the ID's in hidden fields and
> then they will fill up
> > with id's from your collection on jsp page
> >
> > In save method wou will analyse the recieved
> data.
> >
> >
> > kaouki wrote:
> >>
> >> Hi,
> >> I get this bean in my action in order to modify
> it in my jsp:
> >> Catalogue {
> >> Long id;
> >> String title;
> >> String description;
> >> Collection<Produit> produits
> >> }
> >> In this jsp, I have two fieds: title and
> description, and a table of
> >> Produit with checkboxes.
> >> These ones enable the user to remove the products
> from the catalogue.
> >>
> >> In my save action, I get the catalogue (property
> of the action) and a
> >> Long[] (the id of the checked products).
> >> The problem is that the Products Collection of
> the Catalogue and its id
> >> are null.
> >>
> >> So, if I want update some attributes of my bean,
> I have to put the bean
> >> in Session ? or all the unchanged attributes in
> hidden fields ?
> >>
> >> I'm grateful for any input on the matter. Cheers.
> >>
> >
> >
>
> --
> View this message in context:
>
http://www.nabble.com/-S2--Problem-while-retrieving-data-from-JSP-tf4691128.html#a13426242
> Sent from the Struts - User mailing list archive at
> Nabble.com.
>
>
>
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