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Om-next Remote Sync Tutorial send-to-chan

I am probably doing something wrong but I believe one of the om-next tutorials has some issues; specifically the autocomplete example. I was able to figure out one of the issues but there is another issue that is causing me some problems.

Once I put in more then two letters in the input box for autocompletion, the following code:

(defn send-to-chan [c]
  (fn [{:keys [search]} cb]
    (when search
      (let [{[search] :children} (om/query->ast search)
            query (get-in search [:params :query])]
        (put! c [query cb])))))

produces the following error:

Uncaught TypeError: Cannot read property 'call' of undefined
core.js?zx=3jufl8vymlgw [452]   om_tutorial.core.send_to_chan
next.js [3034]  om.next.Reconciler.om$next$protocols$IReconciler$send_BANG_$arity$1
protocols.js [303]  om$next$protocols$send_BANG_
next.js [1656]  anonymous

I am not sure why this is the case.

Any help would be greatly appreciated.

Solution

  • Not sure if this is the right way to do things, but this is what I did to solve this issue.

    1. Checkout om from github. (https://github.com/omcljs/om)
    2. cd om
    3. lein install

    Now the latest om is available on your system. (you can not just put it in your project file, because it is not on https://clojars.org/repo/ yet).

    1. Now this is where I think the confusion happened for me. Earlier in the tutorial, before the auto-correction example; there is a project file that is defined with [org.omcljs/om "1.0.0-alpha23"]. Then when the auto-correction example comes up, I used the same project configurations since there was no mention of how to configure the project file again. It turns out that you have to use [org.omcljs/om "1.0.0-alpha29"].

    Once that happens everything works although I get the following warning.

    Warning: Each child in an array or iterator should have a unique "key" prop. Check the render method of `om_tutorial$core$AutoCompleter`. See https://fb.me/react-warning-keys for more information.

    That will be a fight for another day.

    BTW. Since I used the older version of om originally, just installing the new one did not solve the problem. lein clean did not solve the problem either. I had to manually delete my om-tutorial/resources/public/js folder. Then run lein run -m clojure.main script/figwheel.clj.