World isn't in scope, therefore it's nil, :data is nil and (count nil) is
zero.
Am 15.06.2014 13:27 schrieb <[email protected]>:
> I have change initstate to this:
>
> (defn world-view [data owner opts]
> (reify
> om/IInitState
> (init-state [_]
> {:world []})
>
> om/IWillMount
> (will-mount [_]
> (go (while true
> (log (count (:data world)))
> (if (= (count (:data world)) 0)
> (let [world (<! (get-world (:dimensions opts)))]
> (om/transact! data #(assoc % :world world)))
> (log "never gets here")
> (<! (timeout (:poll-interval opts)))))))
>
> What I do not understand is why when I log the count of (:datat world) is
> that it is always 0.
>
> Also, how would I set some state on the component?
>
> On Tuesday, June 10, 2014 2:04:30 PM UTC+1, David Nolen wrote:
> > Your init-state method is not correct, it should return a map - using
> >
> > transact! there is not recommended. The tutorials/documentation cover
> >
> > some of these point. You could do what you want by setting some local
> >
> > state of the component after the first time to some other value and
> >
> > checking for that in your go loop.
> >
> >
> >
> > HTH,
> >
> > David
> >
> >
> >
> > On Sat, Jun 7, 2014 at 11:54 AM, <[email protected]> wrote:
> >
> > > I have the following component:
> >
> > >
> >
> > > (defn world-view [data owner opts]
> >
> > > (reify
> >
> > > om/IInitState
> >
> > > (init-state [_]
> >
> > > (om/transact! data [:world] (fn [] [])))
> >
> > >
> >
> > > om/IWillMount
> >
> > > (will-mount [_]
> >
> > > (go (while true
> >
> > > (let [world (<! (get-world (:dimensions opts)))]
> >
> > > (om/transact! data #(assoc % :world world)))
> >
> > > (<! (timeout (:poll-interval opts))))))
> >
> > >
> >
> > > om/IRender
> >
> > > (render [_]
> >
> > > (apply dom/table nil
> >
> > > (om/build-all row (:world data))))))
> >
> > >
> >
> > >
> >
> > > This works as expected what I want to do is to call a different method
> after the initial get-world method has been called.
> >
> > >
> >
> > > After get-world has been called I then want to call a different method
> that does a PUT with the data returned from get-world. The setTimeOut
> function would then call this PUT on every time out.
> >
> > >
> >
> > > I'm not sure how to update the data after the initial get-world has
> been called.
> >
> > >
> >
> > > --
> >
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> with your first post.
> >
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>
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