Re: Tracking down duplicate ids

[Richard Wallace]

No, it's not a <h:commandLink>.  I think the problem occurred on a 
<h:outputText> element actually.  Which is why I can't track it down now 
cause there are lots of those on the page =P

Rich
John Fallows wrote:

Hey Martin,

Rich said that the issue was with a h:commandLink that lives outside a form.
Doesn't MyFaces add a dummy form in that case?  
Is it possible that two dummy forms are being implicitly added here,
with the same id, causing the collision?

Thinking out loud in case it might inspire you. :-)

Kind Regards,
John Fallows.

On 8/8/05, Martin Marinschek <[EMAIL PROTECTED]> wrote:
 

Sorry,

I misunderstood the message - of course your component does not have a
parent if it can't be added ;)

do you do anything with component bindings? I have had problems with that
and exactly this error-message, as far as I remember...

If not, try to track it down to exactly one component by taking out other
stuff from the datatable.

regards,

Martin


On 8/8/05, Balaji Saranathan <[EMAIL PROTECTED]> wrote:
   

One more case to convince myself not to depend on auto-generated ids.
Not necessary that they should be within the form.
Was it a h:commandLink ?. CommandLink I know generates a form and does a
submit on the click. 

-----Original Message-----
From: Richard Wallace [mailto:[EMAIL PROTECTED]
Sent: Monday, August 08, 2005 5:08 PM
To: MyFaces Discussion
Subject: Re: Tracking down duplicate ids 


After putting ids on all the elements in the tables (including
<h:column>, <h:outputText> and <h:outputLink> elements) the problem
seems to have gone away.

I think the element it was choking on was a link that was outside any 
forms.  So only parent it would have had was the <f:view> element.  That

should be okay right? JSF elements don't all have to be within <h:form>
elements do they?

Rich

Martin Marinschek wrote: 

     

The thing with the duplicate id's is only one possible reason.

you should look at the component path that is indicated - according to
that, your component would need to be a top-level object - it does not 
       

have any parent object at all?

regards,

Martin

On 8/8/05, *Richard Wallace* <[EMAIL PROTECTED]
<mailto:[EMAIL PROTECTED]>> wrote:

   Ok, a bit of an update.  The issue only comes up when I have both
   of the
   tables on the same page.  If I comment one out with <%-- %> tags 
       

then
     

   everything works fine when adding.  I can comment out either one
   so it's
   not a problem specific to just one of the tables, it's something
       

about
     

   having them both that is causing the problem. 

   Any ideas?

   Thanks again,
   Rich

   Balaji Saranathan wrote:

   >I'm not sure about the problem at your hand,
   >But I have found it extremely helpful and clean in assigning the 
       

IDs
     

   >myself to all the components in a page. It helps in debugging
       

too.
     

   >
   >-----Original Message-----
   >From: Richard Wallace [mailto: [EMAIL PROTECTED]
   <mailto:[EMAIL PROTECTED]>]
   >Sent: Monday, August 08, 2005 2:58 PM
   >To: MyFaces Discussion 
   >Subject: Tracking down duplicate ids
   >
   >
   >Hey everybody,
   >
   >Got a nasty little problem that I'm not sure what the best way to
       

go
     

   >about solving it is.  I've got a page with a couple of dataTables
   and a
   >couple of forms on it.  One form and dataTable is for one type of
   object
   >
   >and the other form and dataTable are for another type of object.
       

The
     

   >forms are for adding new instances.
   >
   >The problem I'm running into is that after adding an instance of 
   either
   >type I get these exceptions:
   >
   >javax.faces.FacesException: cannot add component with id '_id55'
       

and
     

   >path : {Component-Path : [Class:
   >javax.faces.component.html.HtmlOutputText,Id:
       

_id55]} to its
   

parent
     

   >component. This might be a problem due to duplicate ids.
   >
   >On most of the elements I'm just letting myfaces generate the 
       

ids, so
     

   >I'm not sure how this is happening.  If I just goto the url
       

directly
     

   >after doing the add it works fine and the new entries are shown.
   >
   >What's the best way to track down what is actually causing 
   this?  Should
   >
   >I just start giving ids to all my jsf elements or what?
   >
   >Thanks,
   >Rich
   >
   >
   > 
   >
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