[Seaside] Problem with calling owner from decoration

Julian Fitzell jfitzell at gmail.com
Tue Oct 28 22:04:10 UTC 2008

On Mon, Oct 27, 2008 at 11:27 AM, M. Polák <nigol at nigol.cz> wrote:
> I must apolgize myself, I replied for Dario's mail, but I wanted new thread.
> So once again. Thanks.
> Hi there,
> I have a component with method editAction like this:
> | ar |
>        ar := self
>                                call: ((self article descriptionEdit
> asComponentOn: self article)
>                                                addValidatedForm.
>        ar
>                ifNotNil: [self article copyFrom: ar]
> When I call this method directly from this component, editor is rendered
> succesfully. But when i wrap component with decoration, where
> renderContentOn looks like:
> html anchor
>                callback: [self owner editAction];
>                 with: 'edit'.
>        self renderOwnerOn: html
> after clicking on 'edit', nothing happens. Except reloading page, of course.
> Any suggestions here?

Hmm... I'm not exactly sure, except to say that this pattern seems a
little strange to me somehow. Nothing jumps out immediately as to why
it isn't working though.

Beware of #owner, though. It is badly named (following a refactoring
some time ago). It return the *next* item in the Decoration chain,
which is only the Component if this is the last Decoration. That can't
be your problem, though, because you'd presumably get an error that
#editAction was not understood.

Try putting a halt in your callback to make sure that the callback is
actually being called. If so, then it must be some interaction between
your Decoration and the WADelegation that is added by the call:, but
as I said, I can't immediately see just from looking at your code,
what that problem is. You'll need to put a halt in somewhere and
inspect the decoration chain to see what's happening.

Or, maybe somebody else on the list can spot the problem right off...


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