Hi, I'm new to clojure and am trying to rename an uploaded file with a
unique identifier such as a long time stamp as follows:
(defn add-timestamp [filename]
(let [ext-position (.lastIndexOf filename ".")
timestamp (tc/to-long (time/now))]
(if (pos? ext-position)
(str (.substring filename 0 ext-position)
"-" timestamp (.substring filename ext-position))
(str filename "-" timestamp))))
(defn handle-upload [filename]
(upload-file (gallery-path) (add-timestamp filename))
(resp/redirect "/upload"))
However the above throws an error as follows:
java.lang.IllegalArgumentException
No matching method found: lastIndexOf for class
clojure.lang.PersistentArrayMap
Would appreciate any feedback on what I may be doing wrong in the
add-timestamp function.
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