From d8e7087af625078e04e218cb8376033279624257 Mon Sep 17 00:00:00 2001
From: Andrey Antukh <niwi@niwi.nz>
Date: Fri, 25 Dec 2015 15:26:40 +0200
Subject: [PATCH] Add namespace for data transformation utils.

---
 frontend/uxbox/util/data.cljs | 13 +++++++++++++
 1 file changed, 13 insertions(+)
 create mode 100644 frontend/uxbox/util/data.cljs

diff --git a/frontend/uxbox/util/data.cljs b/frontend/uxbox/util/data.cljs
new file mode 100644
index 000000000..54801509d
--- /dev/null
+++ b/frontend/uxbox/util/data.cljs
@@ -0,0 +1,13 @@
+(ns uxbox.util.data
+  "A collection of data transformation utils.")
+
+(defn index-by
+  "Return a indexed map of the collection
+  keyed by the result of executing the getter
+  over each element of the collection."
+  [coll getter]
+  (let [data (transient {})]
+    (run! #(assoc! data (getter %) %) coll)
+    (persistent! data)))
+
+(def ^:static index-by-id #(index-by % :id))