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@AlexWheeler
Created Jan 8, 2017
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(defn- copy-nil-vals [[k v]]
(if (nil? v)
{k k}
{k v}))
(defn column-vals [column-mappings]
(->> column-mappings
(map #(select-keys % [:value :mapped_value]))
(map vals)
(map #(apply hash-map %))
(apply merge)
(map copy-nil-vals)
(apply merge)))
@AlexWheeler
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AlexWheeler commented Jan 8, 2017

(column-vals [{:value "h1" :mapped_value "header1" :value "h2" :mapped_value nil}])

should return

{"h1" "header1" "h2" "h2"}

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