This relates to dynamic URL parameters in JSF navigation: I'm
wondering if anyone has any knowledge about the message which is
quoted below.
I have googled extensively in hopes of finding information about this
implicit 'view' object, and I think it's an instance of UIViewRoot,
but the example Xie Min provided gives me the impression that
arbitrary properties can be set on it (and subsequently used in the
JSF navigation config). Can anyone clear up how this is supposed to
work?
Thanks a lot,
benjamin van der veen
On 4/30/06, benjamin van der veen <[EMAIL PROTECTED]> wrote:
Xie Min,
This is a great find, very close to what I'm talking about. However,
in the following line:
<to-view-id>/view.jsp?objectId=#{view.objectId}</to-view-id>
what object does 'view' in the EL expression reference? Is this an
implicit object, or one defined in a configuration somewhere? If it is
implicit, how do I set it's properties from a backing bean?
Thanks a lot,
benjamin
On 4/29/06, xie min <[EMAIL PROTECTED]> wrote:
>
>
> in myfaces
> wiki(http://wiki.apache.org/myfaces/Custom_Navigation_Handler),
> threr are some suggestion on url parameters passing:
>
> Dynamic Url parameters passing: This allows passing parameters between pages
> even when using redirection method. For exmaple, in order to navigate from a
> pages name: view.jsp to a page named: edit.jsp, with the parameter:
> objectId, the following thing can be done in navigation rule code:
> <navigation-rule>
> <from-view-id>/view.jsp</from-view-id>
> <navigation-case>
> <from-outcome>edit</from-outcome>
> <to-view-id>/view.jsp?objectId=#{view.objectId}</to-view-id>
> <redirect />
> </navigation-case>
> </navigation-rule>
>
>
>
>
> 2006/4/30, benjamin van der veen <[EMAIL PROTECTED]>:
> > I think that jsf-comp onload thing might be what I'm looking for. I
> > really surprised that something like this isn't built in to JSF. Is
> > using this extension violating some design principle fundamental to
> > JSF?
> >
> > benjamin
> >
> > On 4/28/06, Andrew Robinson <[EMAIL PROTECTED]> wrote:
> > > Have a look at:
> > >
> > >
> http://wiki.apache.org/myfaces/InvokingJsfPagesWithStandardUrls
> > >
> http://jsf-comp.sourceforge.net/components/onload/index.html
> > >
> > > -Andrew
> > >
> > > On 4/28/06, benjamin van der veen <[EMAIL PROTECTED]> wrote:
> > > > Hello,
> > > >
> > > > I sent the message quoted below to this list a few days ago, but
> > > > received no replies. I'm just wondering if perhaps it just got
> > > > overlooked; I would appreciate any insight on this issue.
> > > >
> > > > Thanks a lot,
> > > > benjamin
> > > >
> > > > On 4/26/06, benjamin van der veen <[EMAIL PROTECTED]> wrote:
> > > > > Hello,
> > > > >
> > > > > I'm coming from a PHP background, and I've run into a wall with JSF.
> I
> > > > > know how I'd get around it with PHP or ASP.NET, but for JSF I'm
> > > > > stumped.
> > > > >
> > > > > Here's the scenario:
> > > > >
> > > > > I'm making a message board. It has multiple forum each of which has
> > > > > many topics, each of which has many posts. Very standard thing here.
> I
> > > > > am implementing the page which allows a user to create a new topic.
> > > > > The URI is of the form "createTopic.jsf?forumId=<n>" where <n> is an
> > > > > integer corresponding to the forum's primary key in the database. I
> > > > > have a backing bean mapped in faces-config to "CreateTopicBean", and
> > > > > it is request scoped. Now, when the user submits the form to create
> a
> > > > > topic, what is the best way to let the bean know which forum this
> > > > > topic should be created under? I tried having a managed property
> like
> > > > > this:
> > > > >
> > > > > <managed-bean>
> > > > >
> <managed-bean-name>CreateTopicBean</managed-bean-name>
> > > > > <managed-bean-class>
> > > > >
> com.wepwnsnails.faces.managedbean.CreateTopicBean
> > > > > </managed-bean-class>
> > > > >
> <managed-bean-scope>request</managed-bean-scope>
> > > > > <managed-property>
> > > > >
> <property-name>forumId</property-name>
> > > > > <value>#{param.forumId}</value>
> > > > > </managed-property>
> > > > > </managed-bean>
> > > > >
> > > > > but when the "action" attribute of the html <form> element rendered
> by
> > > > > JSF is simply "createTopic.jsf", so an EL exception is thrown when
> JSF
> > > > > fails to set the managed property.
> > > > >
> > > > > I've also tried adding a <h:inputHidden> tag set to the forumId on
> the
> > > > > backing bean in a variety of ways, but they leave much to be desired
> > > > > as far as cleanliness.
> > > > >
> > > > > I'm sure that this is an issue every newbie JSF developer has
> > > > > scratched his head over; so what's the best way to go about this?
> I've
> > > > > had a hard time finding anything in Google, mostly because I don't
> > > > > know how to tersely phrase the problem for a seach query.
> > > > >
> > > > > Thanks a lot,
> > > > > benjamin van der veen
> > > > >
> > > >
> > >
> >
>
>
