Note: I wrote this quickly. I should've taken the time to point out that the
only difference between the first and second functions is the parameterized
namespace, a-ns. When I say it "doesn't work", I mean that accessing the
created fn from a third ns throws a "No such var" exception.
On Thursday, October 11, 2012 at 9:03 PM, David Jacobs wrote:
> I would like to create function names programmatically. So far, I have code
> that works:
>
> (defn create [endpoints]
> (doseq [{:keys [action method url]} endpoints]
> (let [endpoint-fn (if (re-matches #".*/:id(/.*)?" url)
> (fn [id session]
> (method (string/replace url #":id" id) session))
> (fn [session]
> (method url session)))]
> (intern *ns* (symbol action) endpoint-fn))))
>
>
> This creates functions from an array of hashes of the form {:action "index"
> :method api/get :url "url"}.
>
> But I want to move this to a namespace where I can call it from multiple
> other namespaces. As soon as I replace this function with the following, it
> stops working:
>
> (defn create [a-ns endpoints]
> (doseq [{:keys [action method url]} endpoints]
> (let [endpoint-fn (if (re-matches #".*/:id(/.*)?" url)
> (fn [id session]
> (method (string/replace url #":id" id) session))
> (fn [session]
> (method url session)))]
> (intern a-ns (symbol action) endpoint-fn))))
>
>
> ;; From other ns:
> (other-ns/create *ns* endpoints)
>
>
> Where am I going wrong?
>
> David
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