Hi Jarrod, you're exactly right, filename feeds the entire map as:
{:size 17401, :tempfile #, :content-type "image/jpeg", :filename
"AngryBaby4.jpg"}
How can feed it just the :filename portion of the map as string to the
add-timestamp function? Checking that link right now.
On Friday, January 24, 2014 9:05:35 PM UTC-8, Jarrod Swart wrote:
>
> Well that isn't quite what I meant. In that case you are just casting
> what is likely the map of upload data to a string.
>
> Try this:
>
> (defn handle-upload [filename]
> (str filename))
>
> Why? This will show you what type of data you receiving on upload. My
> guess is that it is a map containing all the data about the file upload.
>
> Following this:
> http://www.luminusweb.net/docs/static_resources.md#handling_file_uploads
> should
> help.
>
> In short: you still don't have the right kind of data going into your
> function. Change your handle-upload to the above and verify that you are
> getting the filename alone in your (let [filename (...)] ...) binding.
>
> Hope that helps.
>
> On Friday, January 24, 2014 11:28:00 PM UTC-5, The Dude (Abides) wrote:
>>
>> Hi Jarrod, I tried changing filename to string as follows
>>
>> (defn handle-upload [filename]
>> (upload-file (gallery-path) (add-timestamp (str filename)))
>> (resp/redirect "/upload"))
>>
>> and still got an error as:
>>
>> java.lang.NullPointerException
>>
>>
>> My entire file code is:
>>
>> (ns pgapp.routes.upload
>> (:require [compojure.core :refer [defroutes GET POST]]
>> [pgapp.views.layout :as layout]
>> [noir.io :refer [upload-file resource-path]]
>> [noir.session :as session]
>> [noir.response :as resp]
>> [noir.util.route :refer [restricted]]
>> [clojure.java.io :as io]
>> [ring.util.response :refer [file-response]]
>> [taoensso.timbre :refer [error]]
>> [pgapp.models.db :as db]
>> [clj-time.core :as time]
>> [clj-time.coerce :as tc]
>> [pgapp.util
>> :refer [galleries gallery-path thumb-uri thumb-prefix
>> unique-prefix]])
>> (:import [java.io File FileInputStream FileOutputStream]
>> javax.imageio.ImageIO))
>>
>> (use 'ring.middleware.params
>> 'ring.middleware.multipart-params)
>>
>> (defn upload-page [info]
>> (layout/render "upload.html"))
>>
>> (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 (str filename)))
>> (resp/redirect "/upload"))
>>
>> (defroutes myapp-routes
>> (GET "/upload" [info] (upload-page {:info info}))
>> (POST "/upload" [file] (handle-upload file)))
>>
>> I changed filename to (str filename) in the handle-upload function, but
>> still no dice :(
>>
>> The :refer [galleries gallery-path thumb-uri thumb-prefix
>> unique-prefix]]) are just references to file paths in util.clj vs
>> hardcoding them.
>>
>> I got productive with clojure ref routes, sessions, views with selmer and
>> queries either raw or with korma all easy peasy. However this one thing,
>> this file upload issue has thrown me for a loop for 3 days now :) It is the
>> bane of my existence right now :)
>>
>> If I can get a handle on it, am considering creating a library to make
>> this easier akin to file upload plugins in ruby world like carrier-wave.
>> Thanks for any pointers on what I'm doing wrong with the above code.
>>
>
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