Sorry for taking a bit of time on this, I wound up writing my own example to
test this behavior. Turns out, it's possible by checking for the presence
of the first item in the list:
<span if="${gifts.content[0] == null}">No items!</span>
<span if="${gifts.content[0] != null}">Items!</span>
Feels ugly, but it works on orkut :)
~Arne
On Fri, Jun 12, 2009 at 6:17 PM, Juarez <jbo...@gmail.com> wrote:
>
> Thanks again for your prompt reply.
>
> You're right: Context.Count works inside the repeating element, but it
> does not help in the cases that do not have entries.
>
> I've tried <span if="${!gifts.content}">...</span>, but the message
> is not shown.
>
> ${gifts.content} alone is evalued to []
> ${!gifts.content} returns nothing
> ${gifts.content == []} returns nothing
>
> Would you have any other suggestions? :-)
>
> Juarez
>
> On Jun 12, 7:37 pm, Arne Roomann-Kurrik <api.kur...@google.com> wrote:
> > Sorry, I misunderstood where you were having the problem. Normally
> > you would use Context.Count inside of a repeating element, but I don't
> > think that's going to work for the case where there are no entries in
> > the list that you're repeating over. What happens if you do <span
> > if="${!gifts.content}">...</span> ?
> >
> > ~Arne
> >
> > On Jun 12, 3:21 pm, Juarez <jbo...@gmail.com> wrote:
> >
> >
> >
> > > Hi Arne,
> >
> > > Thank you for your reply, but this did not work for me.
> >
> > > Actually I am using <li repeat="${gifts.content}"> because I am
> > > getting the data from a <os:HttpRequest>
> >
> > > Since ${gifts} results in {"content":[],"headers":{"content-type":
> > > ["text/html; charset=utf-8"]},"status":200}, I've tried also $
> > > {gifts.content.Count} and ${gifts.content.lenght} with no success in
> > > Orkut's sandbox.
> >
> > > Am I doing something wrong? I can include the number of objects in the
> > > JSON in server side, but wouldn't it be better if Count were available
> > > for those getting data from 3rd party APIs?
> >
> > > Regards, Juarez
> >
> > > On Jun 11, 8:38 pm, Arne Roomann-Kurrik <api.kur...@google.com> wrote:
> >
> > > > I've gotten this to work successfully:
> >
> > > > <span if="${gifts.Count == 0}">I received no gifts yet!</span>
> >
> > > > Hope that helps!
> > > > ~Arne
> >
> > > > On Jun 11, 7:32 am, Juarez <jbo...@gmail.com> wrote:
> >
> > > > > Hi, I've created a repeated element like this:
> >
> > > > > <ul>
> > > > > <li repeat="${gifts}">
> > > > > ${Cur.name}
> > > > > </li>
> > > > > </ul>
> >
> > > > > The problem is that I want to display a special message if no items
> > > > > are found. I've tried the following, but it does not work.
> >
> > > > > <os:If condition="${gifts.Count == 0}">
> > > > > I received no gifts yet!
> > > > > </os:If>
> >
> > > > > Can anybody help me? Thanks!
> >
>
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