[英]Transform nested clojure maps
I am having trouble transforming a clojure map. 我在转换Clojure地图时遇到麻烦。 The map has a vector as element and the vectors in turn have maps as elements.
地图以向量为元素,向量又以地图为元素。
The original map looks like this: 原始地图如下所示:
{"values" [{"sub" false, "name" "Adhoc"} {"acm" true, "list" true, "deval" true, "name" "Buyer"}]}
The maps within the vector always have the key "name" but the other keys may vary. 向量内的映射始终具有键“名称”,但其他键可能会有所不同。 The name element should act as a key within the map.
name元素应充当地图中的键。 As end result I need the original map to be transformed into this:
作为最终结果,我需要将原始地图转换为以下内容:
{"values" {"Adhoc" {"sub" false}, "Buyer" {"deval" true, "acm" true, "list" true}}
The problem is that the maps within the vector can have any amount of elements and I don't really know how to solve that with looping. 问题在于向量中的映射可以包含任意数量的元素,而我真的不知道如何通过循环来解决。 Any suggestions would be highly appreciated.
任何建议将不胜感激。
This would process the vector of maps for you: 这将为您处理地图矢量:
(defn merge-by
[maps k]
(->> maps
(map (juxt #(get % k) #(dissoc % k)))
(into {})))
(merge-by [{"sub" false, "name" "Adhoc"}
{"acm" true, "list" true, "deval" true, "name" "Buyer"}]
"name")
;; => {"Adhoc" {"sub" false}, "Buyer" {"deval" true, "acm" true, "list" true}}
And this would process the outer map (if stored in my-map
): 这将处理外部地图(如果存储在
my-map
):
(update-in my-map ["values"] merge-by "name")
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